SLIS170 Data sheet

SLIS170 December 2015 TPIC2010

PRODUCTION DATA.

Package Options

Mechanical Data (Package|Pins)

DFD|56
- MPDS375

Thermal pad, mechanical data (Package|Pins)

DFD|56
- PPTD164E

Orderable Information

8 Detailed Description

8.1 Overview

TPIC2010 is low noise type motor driver IC suitable for 5V optical disk drives. The 9-channel driver IC controlled by SPI is optimum for driving a spindle motor, a sled motor (stepping motor applicable), a load motor, and Focus / Tracking / Tilt actuators and stepping motor for collimator lens. This IC requires an external current sense resistance to measure SPM current. The spindle motor driver part uses integrated sensorless logic to attain low-noise operation during startup and runtime. By using BEMF feedback, external sensors, such as a Hall device, are not needed to carry out self-starting by the starting circuit or perform position detection. By using the efficient PWM drivers, low-power operation can be achieved by controlling the PWM outputs. Dead zone less control is possible for a Focus / Tracking / Tilt actuator driver. In addition, the spindle part output current limiting circuit, the thermal shut down circuit, the sled end detection circuit, collimator lens end detection circuits offer protection for all actuators and motors.

8.2 Functional Block Diagram

8.3 Feature Description

8.3.1 Protection Functions

TPIC2010 has five protection features: undervoltage lockout, overvoltage protection (OVP), over currentprotection (OCP), thermal protection (TSD), and actuator temperature protection (ACTTIMER) in order to protect target equipment. A protect behavior differ by generated events.

8.3.1.1 Undervoltage Lockout (UVLO)

Power Faults are reported in the UVLOMon register. Each UVLOMon bit will be initialized to zero upon a cold power up. After a fault is detected the appropriate fault bit will be latched high. Writing to the RST_ERRFLG (REG77) will clear all UVLOMon bits. The power device faults and actions are summarized in Table 1.

Table 1. Power Fault Monitor

FAULT TYPE	LATCHED REGISTER	XRESET	CRITERIA	SPM	ACTUATOR	DC-DC
A5V under voltage	UVLO_A5V	Yes	<3.7 V	Hi-Z	Hi-Z	Hi-Z Feedback pin to GND
internal 3.3V under voltage	UVLO_INT3P3	Yes	<2.7 V	Hi-Z	Hi-Z	Hi-Z
3.3V DC-DC output under voltage	UVLO_SWR3P3	Yes	<80%	Hi-Z	Hi-Z
1.xV DC-DC output under-voltage	UVLO_SWR1PX	Yes	<80%	Hi-Z	Hi-Z
P5V over-voltage	OVP_P5V		>6.2 V	Brake	—	—
P5V over-voltage	OVP_P5V		>6.5 V	Hi-Z	Hi-Z	Hi-Z

8.3.1.2 Overvoltage Protection (OVP)

Over voltage protect function is aimed to protect the unit from the supplying hi-voltage.

When the supply voltage exceeds 6.5 V, all driver and DC-DC converter output goes Hi-Z. When the supply voltage falls below typical 6.2 V, (6.0 V for SPM) all output start to operate again. The OVP and POR (XRESET) function is not interlocking. However, DC-DC converter output falls by Hi-Z operations, output voltage falls to 80% then XRESET signal goes low.

Moreover, when power supply exceeds 6.2 V, especially SPM enter short brake mode. This operation is offered supposing a voltage rising by motor BEMF of the high velocity revolution.

This function is for insurance, so it can not assure that the device is safety in the condition. Because the absolute maximum ratings range of the supply voltage is 6 V. When this function works, the feed back terminals are not shorted to GND.

Figure 6 shows the behavior of OVP.

Figure 6. Overvoltage Protection

8.3.1.3 Overcurrent Protection (OCP)

The OCP function serve to protect the device from break down by large current. The OCP is provided for five circuit blocks, and each threshold are in Table 2.

Table 2. OCP Threshold

BLOCK	DETECTION CURRENT	MONITOR TIME	HI-Z HOLD TIME
DC-DC conv V1PX V3P3	1850 mA	1 ms	POR
DC-DC conv V1PX V3P3	1150 mA	1 ms	POR
LOAD driver 1 ch 0.5 ch	100%	800 ms	Forever
LOAD driver 1 ch 0.5 ch	260 mA	800 ms	Forever
STEP driver	850 mA	1 µs	25 ms
LED driver	100 mA	20 µs	0.4 ms
CSW driver	1000 mA	20 µs	1.6 ms

When the large current is detected on each block, device put the output FET to Hi-Z.

The amounts of currents and time have specified the detection threshold for every circuit block.

When OCP occurs, it returns automatically after expiring set Hi-Z period. However, it restricts, the POR is performed at OCP for DC-DC converter. It keeps XRESET=L and does not return forever. It’s necessary power ON/OFF actuation in order to make it release.

OCPERR (REG7F) and OCP flag (REG7B) are set at OCP detection.

Figure 7. OCP DC-DC Converter

Figure 8. OCP Load 1-Channel

Figure 9. OCP Load 0.5-Channel

STP1 and STP2 channel has current trip function. The output of STEP channel will be changed Hi-Z if current exceed current limit threshold (850-mA typ). When the trip period 25ms is expired, trip state is automatically released.

Figure 10. OCP Step

Figure 11. OCP LED Driver

Figure 12. OCP Current Switch

8.3.1.4 Thermal Protection (TSD)

The thermal protection (TSD) is a protect function which intercepts an output and suspends an operation when the IC temperature exceed a maximum permissible on a safety. TSD makes an output Hi-Z when the temperature rises up and a threshold value is exceeded. There’re two levels for threshold “Alert” and “Trip”. Alarm is given by status register “TSD_FAULT_” on “Alert” level with 135°C. It continues rising up temperature, the register “TSD_” is set at 150°C and the driver output changes HI-Z. If temperature falls and is reached 135°C, it will output again. TPIC2010 has total 12 temperature sensors in each circuit block. Particular sensor is assigned to appropriate status flag in List 10 OCP threshold.

Table 3. Thermal Sensor Assignment

CIRCUIT	ALERT (°C)	TRIP (°C)	RELEASE (°C)	ALERT FLAG	TRIP FLAG
U	130	145	130	TSD_FAULT_SPM	TSD_SPM
V	130	145	130	TSD_FAULT_SPM	TSD_SPM
W	130	145	130	TSD_FAULT_SPM	TSD_SPM
TLT	130	145	130	TSD_FAULT_ACT	TSD_ACT
FCS	130	145	130	TSD_FAULT_ACT	TSD_ACT
TRC	130	145	130	TSD_FAULT_ACT	TSD_ACT
SLED1	130	145	130	TSD_FAULT_ACT	TSD_ACT
SLED2	130	145	130	TSD_FAULT_ACT	TSD_ACT
STP	130	145	130	TSD_FAULT_ACT	TSD_ACT
LOAD	130	145	130	TSD_FAULT_ACT	TSD_ACT
LED/CSW	130	145	130	TSD_FAULT_LEDCSW	TSD_ LEDCSW
2ch DCDC	130	145	130	TSD_FAULT_SWR	TSD_SWR

8.3.1.5 Actuator Temperature Protection (ACTTIMER)

TPIC2010 has Actuator protect function named ACTTIMER. This function enables to avoid from being broken by setting actuator channel output to HIZ when actuator coil current exceeds the specific value. Up to now, be used a simple actuator protect function such like exceeding max current with continuous time. However these types were not accurate. This new protection enables to calculate heat accumulation and judge correctly. When this function operates, load channel output will be Hi-Z, too. And spindle channel will be forced “Auto short brake” and disc motor will stop.

It’s able to know the protection has occurred by checking Fault register ACTTIMER_FAULT (REG7F) and ACT_TIMER_PROT (REG78). ACTTIMER_FAULT has a character of advance notice, is set before detecting ACT_TIMER_PROT. Once an ACT_TIMER_PROT is set, even if temperature falls, it will not release protection automatically. It’s necessary to clear the flag by setting RST_ERR_FLAG (REG77) or setting 0 to ACTTEMPTH (REG72). ACTTIMER function is able to disable by setting H to ACTPROT_OFF (REG72) or setting 0 to ACTTEMPTH (REG72).

In order to acquire the optimal value for ACTTEMPTH, you should set device into the condition of the detection level, and reading the value of ACTTEMP. Because of the present value can be read from ACTTEMP (REG78). ⁽¹⁾

(1)The ACTTEMP data is updated on Register in ACTPROT_OFF = 0 and ACTTEMPTH > 0.

Figure 13. Actuator Temperature Protections

8.4 Device Functional Modes

8.4.1 Power-On Reset (POR)

8.4.1.1 Power-Up Sequences

The power up sequence is described in Table 4.

In TPIC2010, the normal sequence is to wait for 5-V supply to come up to 3.9 V. After 5 V establish, the internal 3.3 V will stabilize. Now the voltage monitors start to work and begin to look for the DC-DC V1Px and V3P3. Start up sequence for internal DC-DC converter is selected by external pin, SWR_SEQ1 and SWR_SEQ2. All DC-DC converters stabilize the power up sequence finishes and the part starts to function. Once the part finishes all of its power up tasks, it takes XRESET high to indicate that the part is no longer in reset and ready to communicate to the outside world. All the DC-DC converter have soft-start features to avoid rush current and voltage over shoot. Each soft-start sequence takes about 0.8 ms.

Table 4. DC-DC Start-Up Sequence and Output

V1PXSEL	SWR_SEQ2	SWR_SEQ1	REG1PX(V)	REG3P3(V)	SEQUENCE
V1PXSEL	SWR_SEQ2	SWR_SEQ1	REG1PX(V)	REG3P3(V)	REG1PX	REG3P3
0	0	0	1.2	3.3	Same
0	0	1	1.2	3.3	2^nd	1^st
0	1	0	1.2	3.3	1^st	2^nd
0	1	1	1.0	3.3	Same
1	0	0	1.5	3.3	Same
1	0	1	1.5	3.3	2^nd	1^st
1	1	0	1.5	3.3	1^st	2^nd
1	1	1	Disable⁽¹⁾

(1) This setting is able to use REG1PX, REG3P3 pin as GPOUT pin.

Figure 14. Simultaneously Start Up (SWR_SEQ[1:0] = 00)

Figure 15. V1Px Start First (SWR_SEQ[1:0] = 10)

Figure 16. V3P3 Start First (SWR_SEQ[1:0] = 01)

8.4.1.2 XRESET

TPIC2010 is preparing XRESET pin in order to notify an own status to DSP. TPIC2010 set XRESET to L when the event which has a serious effect on DSP occurs such like the power failure, the over temperature and the drop of DC-DC converter output. If all the exception is removed, it will tell that XRESET pin would be set to H and it would be in the ready state. The POR (power on reset) condition is shown in Figure 17. All the behavior of XRESET is shown in Figure 21.

Figure 17. POR Block Diagram

Figure 18. 5-V Supply Voltage Drop

Figure 19. 3.3-V Output Voltage Drops (SWR_SEQ = 00, 11)

Figure 20. 1.x V Output Voltage Drops (SWR_SEQ = 00, 11)

1. The period of XMUTE = L cannot be communicated with device.

2. DC-DC converter disable is V1PXSEL = H, SWR_SEQ1 = H, SWR_SEQ2 = H

3. When exceed 6.5 V, DC-DC converter output changed Hi-Z and output falling < 80%. Consequently force RESET event. (Released > 90%)

Figure 21. XRESET Behavior

8.5 Programming

8.5.1 Function and Operation

8.5.1.1 Serial Port Functional Description

The serial communication of TPIC2010 is based on a SPI communications protocol. TPIC2010 is put on the slave side. All 16-bit transmission data is effective in SSZ = L period.

The bit stream sent through SIMO from a master (DSP) is latched to an internal shift register by the rising edge of SCLK. All the data is transmitted in a total of 16-bit format of a command and data. A format has two types of data, 8 bits and 12 bits length. In order to access specific registers, an address and R/W flag are specified as a command part. In addition, 12 bit data do not have R/W flag in the packet because DAC register　(= 12-bit data form) are Write only. A transfer packet, command and data, is transmitted sequentially from MSB to LSB. A packet is distinguished in MSB 2 bits of command. In the case of 11, it handles a packet for control register access, and the other processed as a packet for a DAC data setting.

There are the following four kinds of serial-data communication packets.

Write 12 bits DAC data (MSB two bit ≠ 11)
Write 8 bits control register (MSB two bit = 11)
Read 8 bits control register (MSB two bit = 11)
Write 12 bits Focus DAC data＋Read 8 bits status register at the same time (MSB two bit ≠ 11)

8.5.1.2 Write Operation

For write operation, DSP transmits 16 bit (command + address + data) data a bit every in an order from MSB. Only the 16-bit data which means 16 SCLK sent from the master during SSZ = L becomes effective. If more than 17 or less than 15 SCLK pulses are received during the time that SSZ is low, the whole packet will be ignored. For all valid write operations, the data of the shift register is latched into its designated internal register at rising edge of 16th SCLK. All internal register bits, except indicated otherwise, are reset to their default states upon power-on-reset.

Figure 22. Write 12 Bits DAC Data

Figure 23. Write 8 Bits Control Register

8.5.1.3 Read Operation

DSP sends 8-bit header through SIMO, in order to perform Read operation. TPIC2010 will start to drive the SOMI line upon the eighth falling edge of SCLK and shift out eight data bits. The master DSP inputs 8bits data from SOMI after the ninth rising edge of SCLK. 　 There’s optional read mode that SOMI data is advanced a half clock cycle of SCLK. This mode becomes effective by setting “ADVANCE_RD” (REG74) = H.

Figure 24. Read 8 Bits Control Register

8.5.1.4 Write and Read Operation

Optionally, the master DSP can read Status register during writing 12 bits DAC (Focus DAC) packet. It’s enabled by setting bit “RDSTAT_ON_VFCS” (REG74) = H.

Figure 25. Write 12 Bits Focus DAC Data + Read 8 Bits Status Data

8.6 Register Maps

All registers are in WRITE-protect mode after XRESET release. “WRITE_ENA” bit (REG76) = H is required before writing data in register.

8.6.1 Register State Transition

1. When exceed 6.5 V, DC-DC converter output changed Hi-Z and output falling <80%.

2. All register except CSW, LED, and XSLEEP is initialized.

Figure 26. Register State Transition Chart

8.6.2 DAC Register (12-Bit Write Only)

Two difference forms are prepared in 12-bit DAC register, and the forms can be selected by setting VDAC_MAPSW (REG74h).

Table 5. DAC Register (VDAC_MAPSW = 0)

REG	NAME	F	11	10	9	8	7	6	5	4	3	2	1	0
00h	N/A	W	N/A				N/A				N/A
01h	VTLT	W	VTLT[11]	VTLT[10]	VTLT[9]	VTLT[8]	VTLT[7]	VTLT[6]	VTLT[5]	VTLT[4]	VTLT[3]	VTLT[2]	VTLT[1]	VTLT[0]
02h	VFCS	W	VFCS[11]	VFCS[10]	VFCS[9]	VFCS[8]	VFCS[7]	VFCS[6]	VFCS[5]	VFCS[4]	VFCS[3]	VFCS[2]	VFCS[1]	VFCS[0]
03h	VTRK	W	VTRK[11]	VTRK[10]	VTRK[9]	VTRK[8]	VTRK[7]	VTRK[6]	VTRK[5]	VTRK[4]	VTRK[3]	VTRK[2]	VTRK[1]	VTRK[0]
04h	VSLD1	W	VSLD1[11]	VSLD1[10]	VSLD1[9]	VSLD1[8]	VSLD1[7]	VSLD1[6]	VSLD1[5]	VSLD1[4]	VSLD1[3]	VSLD1[2]	VSLD1[1]⁽¹⁾	VSLD1[0]⁽¹⁾
05h	VSLD2	W	VSLD2[11]	VSLD2[10]	VSLD2[9]	VSLD2[8]	VSLD2[7]	VSLD2[6]	VSLD2[5]	VSLD2[4]	VSLD2[3]	VSLD2[2]	VSLD2[1]⁽¹⁾	VSLD2[0]⁽¹⁾
06h	VSTP1	W	VSTP1[11]	VSTP1[10]	VSTP1[9]	VSTP1[8]	VSTP1[7]	VSTP1[6]	VSTP1[5]	VSTP1[4]	VSTP1[3]⁽¹⁾	VSTP1[2]⁽¹⁾	VSTP1[1]⁽¹⁾	VSTP1[0]⁽¹⁾
07h	VSTP2	W	VSTP2[11]	VSTP2[10]	VSTP2[9]	VSTP2[8]	VSTP2[7]	VSTP2[6]	VSTP2[5]	VSTP2[4]	VSTP2[3]⁽¹⁾	VSTP2[2]⁽¹⁾	VSTP2[1]⁽¹⁾	VSTP2[0]⁽¹⁾
08h	VSPM	W	VSPM[11]	VSPM[10]	VSPM[9]	VSPM[8]	VSPM[7]	VSPM[6]	VSPM[5]	VSPM[4]	VSPM[3]	VSPM[2]	VSPM[1]	VSPM[0]
09h	VLOAD	W	VLOAD[11]	VLOAD[10]	VLOAD[9]	VLOAD[8]	VLOAD[7]	VLOAD[6]	VLOAD[5]	VLOAD[4]	VLOAD[3]	VLOAD[2]	VLOAD[1]	VLOAD[0]
0Ah	N/A	W	N/A				N/A				N/A
0Bh	N/A	W	N/A				N/A				N/A

(1) TPIC2010 process as 0 even if set as 1.

Table 6. DAC Register (VDAC_MAPSW = 1)

REG	NAME	F	11	10	9	8	7	6	5	4	3	2	1	0
00h	N/A	W	N/A				N/A				N/A
01h	VTLT	W	VTRK[11]	VTRK[10]	VTRK[9]	VTRK[8]	VTRK[7]	VTRK[6]	VTRK[5]	VTRK[4]	VTRK[3]	VTRK[2]	VTRK[1]	VTRK[0]
02h	VFCS	W	VFCS[11]	VFCS[10]	VFCS[9]	VFCS[8]	VFCS[7]	VFCS[6]	VFCS[5]	VFCS[4]	VFCS[3]	VFCS[2]	VFCS[1]	VFCS[0]
03h	VTRK	W	VTLT[11]	VTLT[10]	VTLT[9]	VTLT[8]	VTLT[7]	VTLT[6]	VTLT[5]	VTLT[4]	VTLT[3]	VTLT[2]	VTLT[1]	VTLT[0]
04h	VSLD1	W	VSLD1[11]	VSLD1[10]	VSLD1[9]	VSLD1[8]	VSLD1[7]	VSLD1[6]	VSLD1[5]	VSLD1[4]	VSLD1[3]	VSLD1[2]	VSLD1[1]⁽¹⁾	VSLD1[0]⁽¹⁾
05h	VSLD2	W	VSLD2[11]	VSLD2[10]	VSLD2[9]	VSLD2[8]	VSLD2[7]	VSLD2[6]	VSLD2[5]	VSLD2[4]	VSLD2[3]	VSLD2[2]	VSLD2[1]⁽¹⁾	VSLD2[0]⁽¹⁾
06h	VSTP1	W	VSPM[11]	VSPM[10]	VSPM[9]	VSPM[8]	VSPM[7]	VSPM[6]	VSPM[5]	VSPM[4]	VSPM[3]	VSPM[2]	VSPM[1]	VSPM[0]
07h	VSTP2	W	N/A				N/A				N/A
08h	VSPM	W	N/A				N/A				N/A
09h	VLOAD	W	N/A				VLOAD[11]	VLOAD[10]	VLOAD[9]	VLOAD[8]	VLOAD[7]	VLOAD[6]	VLOAD[5]	VLOAD[4]
0Ah	N/A	W	N/A				VSTP1[11]	VSTP1[10]	VSTP1[9]	VSTP1[8]	VSTP1[7]	VSTP1[6]	VSTP1[5]	VSTP1[4]
0Bh	N/A	W	N/A				VSTP2[11]	VSTP2[10]	VSTP2[9]	VSTP2[8]	VSTP2[7]	VSTP2[6]	VSTP2[5]	VSTP2[4]

(1) TPIC2010 process as 0 even if set 1.

8.6.3 Control Register (8-Bit Read/Write)

Table 7. Control Register⁽¹⁾

REG	NAME	F	7	6	5	4	3	2	1	0
70h	DriverEna	R/W	TLT_ENA	FCS_ENA	TRK_ENA	SPM_ENA	SLD_ENA	STP_ENA	LOAD_ENA	XSLEEP
71h	FuncEna	R/W	SPM_LSMODE	ENDDET_ENA	ENDDET_SLCT	LED_ON	CSW_ON	TEMPMON_ENA	TI reserved
72h	ACTCfg	R/W	LOAD_O5CH_HIGH	LOADPROT_OFF	ACTPROT_OFF	ACTTEMPTH
73h	Parm0	R/W	SIF_TIMEOUT_TH		SLDEND_HZTIME	SLDENDTH		STPEND_HZTIME	STPENDTH
74h	SIFCfg	R/W	DIFF_TLT	LOAD05_CH	RDSTAT_ON_VFCS	VSLD2_POL	VSTP2_POL	ADVANCE_RD	SOMI_HIZ	VDAC_MAPSW
75h	Protect	R/W	TI reserved
76h	WriteEna	R/W	WRITE_ENABLE	TI reserved						REG6X_WR
77h	ClrReg	W	RST_INDAC	RST_REGS	RST_ERR_FLAG	RST_REGS_WO3	TI reserved
78h	ActTemp	R	TI reserved		ACT_TIMER_PROT	ACTTEMP
79h	UVLOMon	R	TI reserved			UVLO_A5V	UVLO_INT3P3	UVLO_SWR3P3	UVLO_SWR1PX	OVP_P5V
7Ah	ThPMon	R	TSD_FAULT_SWR	TSD_FAULT_SPM	TSD_FAULT_ACT	TSD_FAULT_LEDCSW	TSD_SWR	TSD_SPM	TSD_ACT	TSD_ LEDCSW
7Bh	OCPMon	R	TI reserved			OCP_SWR	OCP_STP	OCP_LOAD	OCP_LED	OCP_CSW
7Ch	TempMon	R	TI reserved	CHIPTEMP_STATUS	CHIPTEMP
7Dh	Protect	R	TI reserved
7Eh	Version	R	Version
7Fh	Status	R	ACTTIMER_FAULT	ENDDET	SIF_TIMEOUTERR	PWRERR	TSDERR	OCPERR	TSDFAULT	FG
60h	Protect	R/W	TI reserved
61h	Protect	R/W	TI reserved
62h	Protect	R/W	TI reserved
63h	SpinAdj	R/W	TI reserved						Mask_Plus	TI reserved
64h	Protect	R/W	TI reserved
65h	Protect	R/W	TI reserved
66h	Protect	R/W	TI reserved
6Ch	EdetCfg	R/W	TI reserved						STP_WIND_HIZ	STP_WIND_H
6Dh	DCCfg	R/W	SWR1_MD_BURST	SWR2_MD_BURST	SWR1_VOUTUP		TI reserved	SWR1_BST_HEFF	TI reserved
6Eh	UtilCfg	R/W	GPOUT_HL	GPOUT_ENA	SWROCP_SELCLK		TI reserved		SWR1_GPIO_CNTL	SWR2_GPIO_CNTL
6Fh	MonitorSet	R/W	ACTTIMER_FLT_MON	ENDDET_MON	SIF_TIMEOUTERR_MON	PWRERR_MON	TSDERR_MON	OCPERR_MON	TSDFAULT_MON	TI reserved

(1) VTRK and VLOAD is exclusive, using same DAC block

8.6.4 Detailed Description of Register

8.6.4.1 REG01 12-Bit DAC for Tilt

Figure 27. Tilt (REG01) 12-Bit DAC for Tilt (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VTLT
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VTLT
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 8. Tilt (REG01) Field Descriptions

Bit	Field	Type	Default	Description
11-0	VTLT	w-0		Digital input code for Tilt. 2’s complement format 0x800(-2048) to 0x7ff(+2047) Output is changed by “differential Tilt mode (REG74[7])” TLT_OUT = VTLT × (6.0 / 2048) (DIFF_TLT = 0) TLT_OUT = (VFCS-VTLT) × (6.0 / 2048) (DIFF_TLT = 1) TLT_OUT should be changed after writing VFCS. In DIFF_TLT mode (DIFF_TLT = 1), TLT_OUT should be changed after writing VFCS.

8.6.4.2 REG02 12-Bit DAC for Focus

Figure 28. Focus (REG02) 12-Bit DAC for Focus (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VFCS
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VFCS
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 9. Focus (REG02) Field Descriptions

Bit	Field	Type	Default	Description
11-0	VFCS	w-0		Digital input code for Focus 2’s complement format 0x800(-2048) to 0x7ff(+2047) Output is changed by “differential Tilt mode (REG74[7])” FCS_OUT = VFCS × (6.0 / 2048) (DIFF_TLT = 0) FCS_OUT = (VFCS – VTLT) × (6.0 / 2048) (DIFF_TLT = 1)

8.6.4.3 REG03 12-Bit DAC for Tracking

Figure 29. Tracking (REG03) 12-Bit DAC for Tracking (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VTRK
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VTRK
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 10. Tracking (REG03) Field Descriptions

Bit	Field	Type	Default	Description
11-0	VTRK	w-0		Digital input code for Tracking. 2’s complement format 0x800(-2048) to 0x7ff(+2047) TRK_OUT = VTRK × (6.0 / 2048)

8.6.4.4 REG04 12-Bit DAC for Sled1

Figure 30. Sled1 (REG04) 10bit DAC for Sled1 (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VSLD1
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VSLD1
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 11. Sled1 (REG04) Field Descriptions

Bit	Field	Type	Default	Description
11-2	VSLD1	w-0		Digital input code for Sled1. 2’s complement format 0x800(-2048) to 0x7ff(+2047) Two bits on LSB, VSLD1[1:0], will be handled with zero. SLD1_OUT = VSLD1 × (440mA/2048)

8.6.4.5 REG05 12-Bit DAC for Sled2

Figure 31. Sled2 (REG05) 10bit DAC for Sled2 (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VSLD2
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VSLD2
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 12. Sled2 (REG05) Field Descriptions

Bit	Field	Type	Default	Description
11-2	VSLD2	w-0		Digital input code for Sled2. 2’s complement format 0x800(-2048) to 0x7ff(+2047) Two bits on LSB, VSLD2[1:0], will be handled with zero. SLD2_OUT = VSLD2 × (440mA/2048)

8.6.4.6 REG06 12-Bit DAC for Stepping1

Figure 32. Stepping1 (REG06) 8bit DAC for Stepping1 (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VSTP1
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VSTP1
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 13. Stepping1 (REG06) Field Descriptions

Bit	Field	Type	Default	Description
11-4	VSTP1	w-0		Digital input code for Stepping1. 2’s complement format 0x800(-2048) to 0x7ff(+2047) Four bits on LSB, VSTP1[3:0], will be handled with zero. VSTP1_OUT = VSTP1 × (5.0/2048) @P5V=5.0V

8.6.4.7 REG07 12-Bit DAC for Stepping2

Figure 33. Stepping2 (REG07) 8bit DAC for Stepping2 (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VSTP2
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VSTP2
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 14. Stepping2 (REG07) Field Descriptions

Bit	Field	Type	Default	Description
11-4	VSTP2	w-0		Digital input code for Stepping1. 2’s complement format 0x800(-2048) to 0x7ff(+2047) Four bits on LSB, VSTP2[3:0], will be handled with zero. VSTP2_OUT = VSTP2 × (5.0/2048) @P5V=5.0V

8.6.4.8 REG08 12-Bit DAC for Spindle

Figure 34. Spindle (REG08) 12-Bit DAC for Spindle (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VSPM
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VSPM
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 15. Spindle (REG08) Field Descriptions

Bit	Field	Type	Default	Description
11-0	VSPM	w-0		Digital input code for Spindle. 2’s complement format 0x800(-2048) to 0x7ff(+2047) SPM_OUT = VSPM × (6.0 / 2048)

8.6.4.9 REG09 12-Bit DAC for Load

Figure 35. Load (REG09) 12-Bit DAC for Load (VDAC_MAPSW = 0)

15	14	13	12	11	10	9	8
				VLOAD
				w-0	w-0	w-0	w-0

7	6	5	4	3	2	1	0
VLOAD
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 16. Load (REG09) Field Descriptions

Bit	Field	Type	Default	Description
11-0	VLOAD	w-0		Digital input code for Load. 2’s complement format 0x800(-2048) to 0x7ff(+2047) LOAD_OUT = VLOAD × (6.0 / 2048)

8.6.4.10 REG63 8-Bit Control Register for SpinAdj

Figure 36. SpinAdj (REG63)

7	6	5	4	3	2	1	0
TI reserved						Mask_Plus	TI reserved
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 17. SpinAdj (REG63) Field Descriptions

Bit	Field	Type	Default	Description
7-2	TI reserved	r-0
1	Mask_Plus	r-0	0	Mask Plus bit enables fly back robustness by optimizing masking time. 0: Default masking time 1: Extended masking time for large inductance motor
0	TI reserved	r-0

8.6.4.11 REG6C 8-Bit Control Register for EDetCfg

Figure 37. EDetCfg (REG6C)

7	6	5	4	3	2	1	0
TI reserved						STP_WIND_HIZ	STP_WIND_H
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 18. EDetCfg (REG6C) Field Descriptions

Bit	Field	Type	Default	Description
7-2	TI reserved	r-0
1	STP_WIND_HIZ	r-0	0	0: normal end detection 1: when detecting BEMF, set STP1 and STP2 FET HIZ to reduce mutual noise.
0	STP_WIND_H	r-0	0	0: normal end detection 1: when detecting BEMF, set driving phase to Hi ( Detecting phase put Hi-Z ) to reduce mutual noise.

8.6.4.12 REG6D 8-Bit Control Register for DCCfg

Figure 38. DCCfg (REG6D)

7	6	5	4	3	2	1	0
SWR1_MD_BURST	SWR2_MD_BURST	SWR1_VOUTUP		TI reserved	SWR1_BST_HEFF	TI reserved
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 19. DCCfg (REG6D) Field Descriptions

Bit	Field	Type	Default	Description
7	SWR1_MD_BURST	rw-0	0	0: V1Px normal regulation 1: V1Px discontinuous mode
6	SWR2_MD_BURST	rw-0	0	0: V3P3 normal regulation 1: V3P3 discontinuous mode
5-4	SWR1_VOUTUP	rw-0	0	V1Px DC-DC converter voltage up For 1.2 V or 1.5 V: 00: 0% 01: 2% 10: 3.6% 11: 5.5% For 1.0 V: 00: 0% 01: 1.3% 10: 2.4% 11: 3.3%
3	TI reserved	rw-0
2	SWR1_BST_HEFF	rw-0	0	1: V1Px High efficiency mode on discontinuous mode This bit will be enabled in SWR1_MD_BURST=1
1-0	TI reserved	rw-0

8.6.4.13 REG6E 8-Bit Control Register for UtilCfg

Figure 39. UtilCfg (REG6E)

7	6	5	4	3	2	1	0
GPOUT_HL	GPOUT_ENA	SWROCP_SELCLK		TI reserved		SWR1_GPIO_CNTL	SWR2_GPIO_CNTL
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 20. UtilCfg (REG6E) Field Descriptions

Bit	Field	Type	Default	Description
7	GPOUT_HL	rw-0	0	GPOUT (general-purpose output) pin output selection 0: low output 1: high output valid only REG6F = 00h
6	GPOUT_ENA	rw-0	0	Enable monitor signal output to GPOUT pin 0: No signal output, Hi-Z 1: output signal selected in REG6F with CMOS output Output is Logical OR when selected two more signals
5-4	SWROCP_SELCLK	rw-0	0	Over current protection monitoring frequency 5 counts by 00: 5 kHz (= exceed 1 ms) 01: 20 kHz 10: 50 kHz 11: 500 kHz
3-2	TI reserved	rw-0
1	SWR1_GPIO_CNTL	rw-0	0	Set REG1PX pin as GPIO1 pin. 0: REG1PX pin as 1.xV DC-DC converter output 1: Open drain control for GPOUT1 pin (at V1Px DC-DC disable)
0	SWR2_GPIO_CNTL	rw-0	0	Set REG3P3 pin as GPIO2 pin. 0: REG3P3 pin as 3.3V DC-DC converter output 1: Open drain control for GPOUT1 pin (at V1Px DC-DC disable) Open drain control for GPOUT2 pin (at V3P3 DC-DC disable)

8.6.4.14 REG6F 8-Bit Control Register for MonitorSet

Figure 40. MonitorSet (REG6F)

7	6	5	4	3	2	1	0
ACTTIMER_FLT_MON	ENDDET_MON	SIF_TIMEOUTERR_MON	PWRERR_MON	TSDERR_MON	OCPERR_MON	TSDFAULT_MON	TI reserved
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 21. MonitorSet (REG6F) Field Descriptions

Bit	Field	Type	Description
7	ACTTIMER_FLT_MON	rw-0	1: ACTTIMER fault output to GPOUT pin
6	ENDDET_MON	rw-0	1: ENDDET monitor output to GPOUT pin
5	SIF_TIMEOUTERR_MON	rw-0	1: SIF timeout monitor output to GPOUT pin
4	PWRERR_MON	rw-0	1: PWRERR monitor output to GPOUT pin
3	TSDERR_MON	rw-0	1: TSDERR fault output to GPOUT pin
2	OCPERR_MON	rw-0	1: OCPERR fault output to GPOUT pin
1	TSDFAULT_MON	rw-0	1: TSDFAULT fault output to GPOUT pin

8.6.4.15 REG70 8bit Control Register for DriverEna

Figure 41. REG70 8bit Control Register

7	6	5	4	3	2	1	0
TLT_ENA	FCS_ENA	TRK_ENA	SPM_ENA	SLD_ENA	STP_ENA	LOAD_ENA	XSLEEP
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 22. DriverEna (REG70) Field Descriptions

Bit	Field	Type	Description
7	TLT_ENA	rw-0	1 : Tilt enable (with XSLEEP=1)
6	FCS_ENA	rw-0	1: Focus enable (with XSLEEP=1)
5	TRK_ENA	rw-0	1: Track enable (with XSLEEP=1)
4	SPM_ENA	rw-0	1: Spindle enable (with XSLEEP=1)
3	SLD_ENA	rw-0	1: Sled enable (with XSLEEP=1)
2	STP_ENA	rw-0	1: Step enable (with XSLEEP=1)
1	LOAD_ENA	rw-0	1 : LOAD enable (with XSLEEP=1) Track (bit5:TRK_ENA) will be disabled at LOAD_ENA=1 because of sharing the DAC PWM module. Load priority is higher than TRK_ENA.
0	XSLEEP	rw-0	1: Operation mode 0: Power save mode Charge pump enable bit. All driver enable bit (Bit[7:1]) change disabled and output change to Hi-Z (regardless of setting xxx_ENA bit is 1 when setting XSLEEP to 0. Therefore set 1 to XSLEEP before setting each enable bits.

8.6.4.16 REG71 8-Bit Control Register for FuncEna

Figure 42. REG71 8-Bit Control Register for FuncEna (REG71)

7	6	5	4	3	2	1	0
SPM_LSMODE	ENDDET_ENA	ENDDET_SLCT	LED_ON	CSW_ON	TEMPMON_ENA	TI reserved
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 23. FuncEna (REG71) Field Descriptions

Bit	Field	Type	Description
7	SPM_LSMODE	rw-0	0 : Spindle Normal rotation mode 1 : Light Scribe mode (slow rotation mode)
6	ENDDET_ENA	rw-0	1 : use sled/step End detection enable ( with STP_ENA=1 or SLD_ENA=1)
5	ENDDET_SLCT	rw-0	0 : Sled End detection monitor 1 : Step End detection monitor
4	LED_ON	rw-0	1 : LEDO enable ( with XSLEEP=1)
3	CSW_ON	rw-0	1 : CSWO enable ( with XSLEEP=1)
2	TEMPMON_ENA	rw-0	1: enable chip temperature monitoring ( with XSLEEP=1)
1-0	TI reserved	rw-0	Reserved

8.6.4.17 REG72 8-Bit Control Register for ACTCfg

Figure 43. ACTCfg (REG72)

7	6	5	4	3	2	1	0
LOAD_O5CH_HIGH	LOADPROT_OFF	ACTPROT_OFF	ACTTEMPTH
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 24. ACTCfg (REG72) Field Descriptions

Bit	Field	Type	Description
7	LOAD_05CH_HIGH	rw-0	LOAD output polarity at 0.5CH ( REG74h[6]=1 ) 0: LOADP=Low 1: LOADP=High
6	LOADPROT_OFF	rw-0	1: Load Over Current Protection OFF
5	ACTPROT_OFF	rw-0	0 : Actuator protection ON 1 : Actuator Fault monitor disable (No protection for ACT channel)
4-0	ACTTEMPTH	rw-0	Actuator thermal protection (=ACT Timer) threshold level ACT Timer Protection enable except ACTTEMPTH[4:0] = 0x00 ACTTEMPTH = 0x00 equal to ACTPROT_OFF = 1 By writing value 0x00, ACTTIMER_PROT flag is cleared.

8.6.4.18 REG73 8-Bit Control Register for Parm0

Figure 44. Parm0 (REG73)

7	6	5	4	3	2	1	0
SIF_TIMEOUT_TH		SLEDEND_HZTIME	SLDENDTH		STPEND_HZTIME	STPENDTH
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 25. Parm0 (REG73) Field Descriptions

Bit	Field	Type	Description
7-6	SIF_TIMEOUT_TH	rw-0	Watch dog timer for Serial communication 0: disable 1: 1 ms 2: 100 µs 3: 10 µs Set SIF_TIMEOUTERR (REG7F) if communication is suspended for this time period. XRESET processing will be performed if a SIF_TIMEOUTERR occurs.
5	SLEDEND_HZTIME	rw-0	Time window for sled end detection. 0: 400 µs 1: 200 µs Caution) Need to recycle ENDDET_ENA = 0 → 1 after writing this bit.
4-3	SLDENDTH	rw-0	Sled end detection sensibility setting. Detection threshold for motor BEMF 00: 46 mV 01: 86 mV 10: 0 mV 11: 22 mV
2	STPEND_HZTIME	rw-0	Step High-Z detection period in End detection 0: 400 µs 1: 200 µs Caution) Need to recycle ENDDET_ENA = 0 → 1 after writing this bit.
1-0	STPENDTH	rw-0	Step end detection sensibility setting 00: 39 mV 01: 60 mV 10: 0 mV 11: 19 mV

8.6.4.19 REG74 8-Bit Control Register for SIFCfg

Figure 45. SIFCfg (REG74)

7	6	5	4	3	2	1	0
DIFF_TLT	LOAD_05CH	RDSTAT_ON_VFCS	VSLD2_POL	VSTP2_POL	ADVANCE_RD	SOMI_HIZ	VDAC_MAPSW
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 26. SIFCfg (REG74) Field Descriptions

Bit	Field	Type	Description
7	DIFF_TLT	rw-0	1 : Differential Tilt mode enable (with TLT_ENA=FCS_ENA=1) Differential Tilt mode (DIFF_TLT=1), DAC value setting as follows FCS_OUT=(VFCS+VTLT) × 6/2048 TLT_OUT=(VFCS-VTLT) × 6/2048 In DIFF_TLT mode (DIFF_TLT=1), TLT_OUT should be changed after writing VFCS.
6	LOAD_05CH	rw-0	The setting of Load motor driving type. Load output changes as follow 0: 1ch mode (LOAD output is controlled by DAC code, VLOAD) Use for Slot-in model or 1ch tray model. 1: 0.5Ch mode (LOAD is only controlled by LOAD_05CH_HIGH) Use for Tray model
5	RDSTAT_ON_VFCS	rw-0	Set Read status data (REG7F) at VFCS write command (REG02) 1: enable Write and Read mode (Write 12bits Focus DAC data + Read 8bits status data)
4	VSLD2_POL	rw-0	change direction of SLED rotation
3	VSTP2_POL	rw-0	change direction of STEP rotation
2	ADVANCE_RD	rw-0	Advanced serial read timing 1: Read back timing changes half clock advance.
1	SOMI_HIZ	rw-0	0: SOMI line High-Z at bus idling time. 1: SOMI line Pull Down at bus idling time.
0	VDAC_MAPSW	rw-0	1: change channel assignments of DAC register (REG01~09)

8.6.4.20 REG76 8-Bit Control Register for WriteEna

Figure 46. WriteEna (REG76)

7	6	5	4	3	2	1	0
WRITE_ENABLE	TI reserved						REG6X_WR
rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0	rw-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 27. WriteEna (REG76) Field Descriptions

Bit	Field	Type	Default	Description
7	WRITE_ENABLE	rw-0	0	0: Register Write disable except REG76 1: Write enable for registers REG01~0B, REG70~7F
6-1	TI reserved	rw-0
0	REG6X_WR	rw-0	0	0: Register REG63 write disable 1: Register REG63 write enable

8.6.4.21 REG77 8-Bit Control Register for ClrReg

Figure 47. ClrReg (REG77)

7	6	5	4	3	2	1	0
RST_INDAC	RST_REGS	RST_ERR_FLAG	RST_REGS_WO3	TI reserved
w-0	w-0	w-0	w-0	w-0	w-0	w-0	w-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 28. ClrReg (REG77) Field Descriptions

Bit	Field	Type	Default	Description
7	RST_INDAC	w-0	0	1 : Reset all 12bit input DAC register (REG01~0B) *Self clear bit
6	RST_REGS	w-0	0	1 : Reset all 8bit R/W Registers (REG70h~77h, 60h-6Fh) *Self clear bit
5	RST_ERR_FLAG	w-0	0	1 : Reset Fault Flag Latch (REG7F[5:1], REG79~REG7B) *Self clear bit
4	RST_REGS_WO3	w-0	0	1 : Reset all 8bit R/W Registers w/o XSLEEP, CSW_ON, LED_ON (REG70h~76h, REG60h~66h) *Self clear bit
3-0	TI reserved	w-0

8.6.4.22 REG78 8-Bit Control Register for ActTemp

Figure 48. ActTemp (REG78)

7	6	5	4	3	2	1	0
TI reserved		ACT_TIMER_PROT	ACTTEMP
r-0	r-0	r-0	r-0	r-0	r-0	r-0	r-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 29. ActTemp (REG78) Field Descriptions

Bit	Field	Type	Default	Description
7-6	TI reserved	r-0
5	ACT_TIMER_PROT	r-0	0	ACT timer protection flag 1: ACT Timer Protection has detected and latched. (ACTTEMP > ACTTEMPTH) This bit holds data after temperature change to low since this is a latch bit. Also driver output keep Hi-Z until setting RST_ERR_FLAG or ACTTEMPTH = 0.
4-0	ACTTEMP	r-0	0	An integrated value of ACT_TIMER counters at present.

8.6.4.23 REG79 8-Bit Control Register for UVLOMon

Figure 49. UVLOMon (REG79)

7	6	5	4	3	2	1	0
TI reserved			UVLO_A5V	UVLO_INT3P3	UVLO_SWR3P3	UVLO_SWR1PX	OVP_P5V
r-0	r-0	r-0	r-0	r-0	r-0	r-0	r-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 30. UVLOMon (REG79) Field Descriptions

Bit	Field	Type	Default	Description
7-5	TI reserved	r-0
4	UVLO_A5V	r-0	0	UVLO flag for detection Low A5V supply⁽¹⁾
3	UVLO_INT3P3	r-0	0	UVLO flag for detection Low internal 3.3V regulator⁽¹⁾
2	UVLO_SWR3P3	r-0	0	UVLO flag for detection Low DC-DC 3.3V ⁽¹⁾
1	UVLO_SWR1PX	r-0	0	UVLO flag for detection Low DC-DC 1.xV ⁽¹⁾
0	OVP_P5V	r-0	0	Over voltage protection flag for P5Vsply ⁽¹⁾

(1) Latched first reset event only. Cleared by “RST_ERR_FLG” (REG77)

8.6.4.24 REG7A 8-Bit Control Register for ThPMon

Figure 50. ThPMon (REG7A)

7	6	5	4	3	2	1	0
TSD_FAULT_SWR	TSD_FAULT_SPM	TSD_FAULT_ACT	TSD_FAULT_LEDCSW	TSD_SWR	TSD_SPM	TSD_ACT	TSD_ LEDCSW
r-0	r-0	r-0	r-0	r-0	r-0	r-0	r-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 31. ThPMon (REG7A) Field Descriptions

Bit	Field	Type	Description
7	TSD_FAULT_SWR	r-0	Pre alert of thermal protection for DC-DC converter block*.
6	TSD_FAULT_SPM	r-0	Pre alert of thermal protection of Spindle block*
5	TSD_FAULT_ACT	r-0	Pre alert of thermal protection of Focus /Track /Tilt Sled1 /Sled2 /Step1 /Step2 /Load *
4	TSD_FAULT_LEDCSW	r-0	Pre alert of thermal protection of CSW/LED *
3	TSD_SWR	r-0	Thermal protection flag for DC-DC converter block * DC-DC converter output Hi-Z until temperature falls on release level 1: detect (latch)
2	TSD_SPM	r-0	Thermal protection flag for Spindle * SPM output Hi-Z until temperature falls on release level 1: detect (latch)
1	TSD_ACT	r-0	Thermal protection flag for Focus /Track /Tilt Sled1 /Sled2 /Step1 /Step2 /Load * Actuator output Hi-Z until temperature falls on release level 1: detect (latch)
0	TSD_ LEDCSW	r-0	Thermal protection flag for CSW/LED * LED/CSW output Hi-Z until temperature falls on release level 1: detect (latch)

8.6.4.25 REG7B 8-Bit Control Register for OCPMon

Figure 51. OCPMon (REG7B)

7	6	5	4	3	2	1	0
TI reserved			OCP_SWR	OCP_STP	OCP_LOAD	OCP_LED	OCP_CSW
r-0	r-0	r-0	r-0	r-0	r-0	r-0	r-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 32. OCPMon (REG7B) Field Descriptions

Bit	Field	Type	Default	Description
7-5	TI reserved	r-0
4	OCP_SWR	r-0	0	Over current protection flag bit for DC-DC converter block. ⁽¹⁾
3	OCP_STP	r-0	0	Over current protection flag bit for step block. ⁽¹⁾
2	OCP_LOAD	r-0	0	Over current protection flag bit for Load block. ⁽¹⁾
1	OCP_LED	r-0	0	Over current protection flag bit for LED block. ⁽¹⁾
0	OCP_CSW	r-0	0	Over current protection flag bit for CSW block. ⁽¹⁾

(1) Cleared by “RST_ERR_FLAG” bit (REG77)

8.6.4.26 REG7C 8-Bit Control Register for TempMon

Figure 52. TempMon (REG7C)

7	6	5	4	3	2	1	0
TI reserved	CHIPTEMP_STATUS	CHIPTEMP
r-0	r-0	r-0	r-0	r-0	r-0	r-0	r-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 33. TempMon (REG7C) Field Descriptions

Bit	Field	Type	Default	Description
7	TI reserved	r-0
6	CHIPTEMP_STATUS	r-0	0	1: New data CHIPTEMP[5:0] is updated It will be cleared after reading.
5-0	CHIPTEMP	r-0	0	Chip temperature monitor (2.5deg/LSB) 15(0) to 172.5(63) degrees. For monitoring, TEMPMON_ENA=1 and XSLEEP=1 is required

8.6.4.27 REG7E 8-Bit Control Register for Version (REG7E)

Figure 53. Version (REG7E)

7	6	5	4	3	2	1	0
Version
r-0	r-0	r-0	r-0	r-0	r-0	r-0	r-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 34. Version (REG7E) Field Descriptions

Bit	Field	Type	Default	Description
7-0	Version	r-0		Version[7:4] = revision number of TPIC2010 Version[3:0]=option

8.6.4.28 REG7F 8-Bit Control Register for Status (REG7F)

Figure 54. Status (REG7F)

7	6	5	4	3	2	1	0
ACTTIMER_FAULT	ENDDET	SIF_TIMEOUTERR	PWRERR	TSDERR	OCPERR	TSDFAULT	FG
r-0	r-0	r-0	r-0	r-0	r-0	r-0	r-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 35. Status (REG7F) Field Descriptions

Bit	Field	Type	Description
7	ACTTIMER_FAULT	r-0	Status flag of ACTTIMER protection 1: Pre alert of ACTTIMER protection. It is close to the threshold level. You can get current ACTTIMER value in REG78. Both of this bit and ACT_TIMER_PROT (REG78) will be set when over the threshold.
6	ENDDET	r-0	status flag of END detection 1: end position detected (not latch bit)
5	SIF_TIMEOUTERR	r-0	error flag of serial I/F watch dog timer 1: SIF communication was interrupted, expired watch dog timer
4	PWRERR	r-0	error flag of Power 1 : Voltage problem occurred, details in REG79
3	TSDERR	r-0	error flag of any over thermal protections 1: Dispatched thermal protection, details in REG7A
2	OCPERR	r-0	error flag of any over current protection 1: Dispatched OCP, details in REG7Bh
1	TSDFAULT	r-0	warning of TSD of any thermal protection 1 : Detect pre thermal protection details in REG7A
0	FG	r-0	FG signal. Spindle rotation pulse for speed monitor

Package Options

Mechanical Data (Package|Pins)

Thermal pad, mechanical data (Package|Pins)

Orderable Information

8 Detailed Description

8.1 Overview

8.2 Functional Block Diagram

8.3 Feature Description

8.3.1 Protection Functions

8.3.1.1 Undervoltage Lockout (UVLO)

Table 1. Power Fault Monitor

8.3.1.2 Overvoltage Protection (OVP)

8.3.1.3 Overcurrent Protection (OCP)

Table 2. OCP Threshold

8.3.1.4 Thermal Protection (TSD)

Table 3. Thermal Sensor Assignment

8.3.1.5 Actuator Temperature Protection (ACTTIMER)

8.4 Device Functional Modes

8.4.1 Power-On Reset (POR)

8.4.1.1 Power-Up Sequences

Table 4. DC-DC Start-Up Sequence and Output

8.4.1.2 XRESET

8.5 Programming

8.5.1 Function and Operation

8.5.1.1 Serial Port Functional Description

8.5.1.2 Write Operation

8.5.1.3 Read Operation

8.5.1.4 Write and Read Operation

8.6 Register Maps

8.6.1 Register State Transition

8.6.2 DAC Register (12-Bit Write Only)

Table 5. DAC Register (VDAC_MAPSW = 0)

Table 6. DAC Register (VDAC_MAPSW = 1)

8.6.3 Control Register (8-Bit Read/Write)

Table 7. Control Register(1)

8.6.4 Detailed Description of Register

8.6.4.1 REG01 12-Bit DAC for Tilt

Table 8. Tilt (REG01) Field Descriptions

8.6.4.2 REG02 12-Bit DAC for Focus

Table 9. Focus (REG02) Field Descriptions

8.6.4.3 REG03 12-Bit DAC for Tracking

Table 10. Tracking (REG03) Field Descriptions

8.6.4.4 REG04 12-Bit DAC for Sled1

Table 11. Sled1 (REG04) Field Descriptions

8.6.4.5 REG05 12-Bit DAC for Sled2

Table 12. Sled2 (REG05) Field Descriptions

8.6.4.6 REG06 12-Bit DAC for Stepping1

Table 13. Stepping1 (REG06) Field Descriptions

8.6.4.7 REG07 12-Bit DAC for Stepping2

Table 14. Stepping2 (REG07) Field Descriptions

8.6.4.8 REG08 12-Bit DAC for Spindle

Table 15. Spindle (REG08) Field Descriptions

8.6.4.9 REG09 12-Bit DAC for Load

Table 16. Load (REG09) Field Descriptions

8.6.4.10 REG63 8-Bit Control Register for SpinAdj

Table 17. SpinAdj (REG63) Field Descriptions

8.6.4.11 REG6C 8-Bit Control Register for EDetCfg

Table 18. EDetCfg (REG6C) Field Descriptions

8.6.4.12 REG6D 8-Bit Control Register for DCCfg

Table 19. DCCfg (REG6D) Field Descriptions

8.6.4.13 REG6E 8-Bit Control Register for UtilCfg

Table 20. UtilCfg (REG6E) Field Descriptions

8.6.4.14 REG6F 8-Bit Control Register for MonitorSet

Table 21. MonitorSet (REG6F) Field Descriptions

8.6.4.15 REG70 8bit Control Register for DriverEna

Table 22. DriverEna (REG70) Field Descriptions

8.6.4.16 REG71 8-Bit Control Register for FuncEna

Table 23. FuncEna (REG71) Field Descriptions

8.6.4.17 REG72 8-Bit Control Register for ACTCfg

Table 24. ACTCfg (REG72) Field Descriptions

8.6.4.18 REG73 8-Bit Control Register for Parm0

Table 25. Parm0 (REG73) Field Descriptions

8.6.4.19 REG74 8-Bit Control Register for SIFCfg

Table 26. SIFCfg (REG74) Field Descriptions

8.6.4.20 REG76 8-Bit Control Register for WriteEna

Table 27. WriteEna (REG76) Field Descriptions

8.6.4.21 REG77 8-Bit Control Register for ClrReg

Table 28. ClrReg (REG77) Field Descriptions

8.6.4.22 REG78 8-Bit Control Register for ActTemp

Table 29. ActTemp (REG78) Field Descriptions

Table 7. Control Register⁽¹⁾