SNVSCT9 October 2024 LM251772

PRODUCTION DATA

Package Options

Mechanical Data (Package|Pins)

RHA|40
- MPQF135D

Thermal pad, mechanical data (Package|Pins)

RHA|40
- QFND660

Orderable Information

9 LM251772 Registers

Table 9-1 lists the memory-mapped registers for the LM251772 registers. All register offset addresses not listed in LM251772 Registers should be considered as reserved locations and the register contents should not be modified.

Table 9-1 LM251772 Registers

Offset	Acronym	Register Name	Section
3h	CLEAR_FAULTS	CLEAR_FAULTS	Section 9.1
Ah	ILIM_THRESHOLD	ILIM_THRESHOLD	Section 9.2
Ch	VOUT_TARGET1_LSB	VOUT_TARGET1_LSB	Section 9.3
Dh	VOUT_TARGET1_MSB	VOUT_TARGET1_MSB	Section 9.4
21h	USB_PD_STATUS_0	USB_PD_STATUS_0	Section 9.5
78h	STATUS_BYTE	STATUS_BYTE	Section 9.6
81h	USB_PD_CONTROL_0	USB_PD_CONTROL_0	Section 9.7
D0h	MFR_SPECIFIC_D0	MFR_SPECIFIC_D0	Section 9.8
D1h	MFR_SPECIFIC_D1	MFR_SPECIFIC_D1	Section 9.9
D2h	MFR_SPECIFIC_D2	MFR_SPECIFIC_D2	Section 9.10
D5h	MFR_SPECIFIC_D5	MFR_SPECIFIC_D5	Section 9.11
D6h	MFR_SPECIFIC_D6	MFR_SPECIFIC_D6	Section 9.12
D7h	MFR_SPECIFIC_D7	MFR_SPECIFIC_D7	Section 9.13
D8h	MFR_SPECIFIC_D8	MFR_SPECIFIC_D8	Section 9.14
DAh	IVP_VOLTAGE	IVP_VOLTAGE	Section 9.15

Complex bit access types are encoded to fit into small table cells. Table 9-2 shows the codes that are used for access types in this section.

Table 9-2 LM251772 Access Type Codes

Access Type	Code	Description
Read Type
R	R	Read
Write Type
W	W	Write
Reset or Default Value
-n		Value after reset or the default value

9.1 CLEAR_FAULTS Register (Offset = 3h) [Reset = 00h]

CLEAR_FAULTS is shown in Table 9-3.

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clear all latched status flags

Table 9-3 CLEAR_FAULTS Register Field Descriptions

Bit	Field	Type	Reset	Description
7-0	CLEAR_FAULTS	R	0h	accessing the address is enough to clear fault

9.2 ILIM_THRESHOLD Register (Offset = Ah) [Reset = 12h]

ILIM_THRESHOLD is shown in Table 9-4.

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Table 9-4 ILIM_THRESHOLD Register Field Descriptions

Bit	Field	Type	Reset	Description
7-0	ILIM_THRESHOLD	R/W	12h	ISNS current limit threshold voltage. Value in bracket considers a 10mOhms sens resistor 0h = 5mV (0.5 A) 1h = 5mV (0.5 A) 2h = 5mV (0.5 A) 3h = 5mV (0.5 A) 4h = 5mV (0.5 A) 5h = 5mV (0.5 A) 6h = 5mV (0.5 A) 7h = 5mV (0.5 A) 8h = 5mV (0.5 A) 9h = 5mV (0.5 A) Ah = 5mV (0.5 A) Bh = 5.5mV (0.55 A) Ch = 6mV (0.6 A) Dh = 6.5mV (0.65 A) Eh = 7mV (0.7 A) Fh = 7.5mV (0.75 A) 10h = 8mV (0.8 A) 11h = 8.5mV (0.85 A) 12h = 9mV (0.9 A) 13h = 9.5mV (0.95 A) 14h = 10mV (1 A) 15h = 10.5mV (1.05 A) 16h = 11mV (1.1 A) 17h = 11.5mV (1.15 A) 18h = 12mV (1.2 A) 19h = 12.5mV (1.25 A) 1Ah = 13mV (1.3 A) 1Bh = 13.5mV (1.35 A) 1Ch = 14mV (1.4 A) 1Dh = 14.5mV (1.45 A) 1Eh = 15mV (1.5 A) 1Fh = 15.5mV (1.55 A) 20h = 16mV (1.6 A) 21h = 16.5mV (1.65 A) 22h = 17mV (1.7 A) 23h = 17.5mV (1.75 A) 24h = 18mV (1.8 A) 25h = 18.5mV (1.85 A) 26h = 19mV (1.9 A) 27h = 19.5mV (1.95 A) 28h = 20mV (2 A) 29h = 20.5mV (2.05 A) 2Ah = 21mV (2.1 A) 2Bh = 21.5mV (2.15 A) 2Ch = 22mV (2.2 A) 2Dh = 22.5mV (2.25 A) 2Eh = 23mV (2.3 A) 2Fh = 23.5mV (2.35 A) 30h = 24mV (2.4 A) 31h = 24.5mV (2.45 A) 32h = 25mV (2.5 A) 33h = 25.5mV (2.55 A) 34h = 26mV (2.6 A) 35h = 26.5mV (2.65 A) 36h = 27mV (2.7 A) 37h = 27.5mV (2.75 A) 38h = 28mV (2.8 A) 39h = 28.5mV (2.85 A) 3Ah = 29mV (2.9 A) 3Bh = 29.5mV (2.95 A) 3Ch = 30mV (3 A) 3Dh = 30.5mV (3.05 A) 3Eh = 31mV (3.1 A) 3Fh = 31.5mV (3.15 A) 40h = 32mV (3.2 A) 41h = 32.5mV (3.25 A) 42h = 33mV (3.3 A) 43h = 33.5mV (3.35 A) 44h = 34mV (3.4 A) 45h = 34.5mV (3.45 A) 46h = 35mV (3.5 A) 47h = 35.5mV (3.55 A) 48h = 36mV (3.6 A) 49h = 36.5mV (3.65 A) 4Ah = 37mV (3.7 A) 4Bh = 37.5mV (3.75 A) 4Ch = 38mV (3.8 A) 4Dh = 38.5mV (3.85 A) 4Eh = 39mV (3.9 A) 4Fh = 39.5mV (3.95 A) 50h = 40mV (4 A) 51h = 40.5mV (4.05 A) 52h = 41mV (4.1 A) 53h = 41.5mV (4.15 A) 54h = 42mV (4.2 A) 55h = 42.5mV (4.25 A) 56h = 43mV (4.3 A) 57h = 43.5mV (4.35 A) 58h = 44mV (4.4 A) 59h = 44.5mV (4.45 A) 5Ah = 45mV (4.5 A) 5Bh = 45.5mV (4.55 A) 5Ch = 46mV (4.6 A) 5Dh = 46.5mV (4.65 A) 5Eh = 47mV (4.7 A) 5Fh = 47.5mV (4.75 A) 60h = 48mV (4.8 A) 61h = 48.5mV (4.85 A) 62h = 49mV (4.9 A) 63h = 49.5mV (4.95 A) 64h = 50mV (5 A) 65h = 50.5mV (5.05 A) 66h = 51mV (5.1 A) 67h = 51.5mV (5.15 A) 68h = 52mV (5.2 A) 69h = 52.5mV (5.25 A) 6Ah = 53mV (5.3 A) 6Bh = 53.5mV (5.35 A) 6Ch = 54mV (5.4 A) 6Dh = 54.5mV (5.45 A) 6Eh = 55mV (5.5 A) 6Fh = 55.5mV (5.55 A) 70h = 56mV (5.6 A) 71h = 56.5mV (5.65 A) 72h = 57mV (5.7 A) 73h = 57.5mV (5.75 A) 74h = 58mV (5.8 A) 75h = 58.5mV (5.85 A) 76h = 59mV (5.9 A) 77h = 59.5mV (5.95 A) 78h = 60mV (6 A) 79h = 60.5mV (6.05 A) 7Ah = 61mV (6.1 A) 7Bh = 61.5mV (6.15 A) 7Ch = 62mV (6.2 A) 7Dh = 62.5mV (6.25 A) 7Eh = 63mV (6.3 A) 7Fh = 63.5mV (6.35 A) 80h = 64mV (6.4 A) 81h = 64.5mV (6.45 A) 82h = 65mV (6.5 A) 83h = 65.5mV (6.55 A) 84h = 66mV (6.6 A) 85h = 66.5mV (6.65 A) 86h = 67mV (6.7 A) 87h = 67.5mV (6.75 A) 88h = 68mV (6.8 A) 89h = 68.5mV (6.85 A) 8Ah = 69mV (6.9 A) 8Bh = 69.5mV (6.95 A) 8Ch = 70mV (7 A) 8Dh = 70mV (7 A) 8Eh = 70mV (7 A) 8Fh = 70mV (7 A) 90h = 70mV (7 A) 91h = 70mV (7 A) 92h = 70mV (7 A) 93h = 70mV (7 A) 94h = 70mV (7 A) 95h = 70mV (7 A) 96h = 70mV (7 A) 97h = 70mV (7 A) 98h = 70mV (7 A) 99h = 70mV (7 A) 9Ah = 70mV (7 A) 9Bh = 70mV (7 A) 9Ch = 70mV (7 A) 9Dh = 70mV (7 A) 9Eh = 70mV (7 A) 9Fh = 70mV (7 A) A0h = 70mV (7 A) A1h = 70mV (7 A) A2h = 70mV (7 A) A3h = 70mV (7 A) A4h = 70mV (7 A) A5h = 70mV (7 A) A6h = 70mV (7 A) A7h = 70mV (7 A) A8h = 70mV (7 A) A9h = 70mV (7 A) AAh = 70mV (7 A) ABh = 70mV (7 A) ACh = 70mV (7 A) ADh = 70mV (7 A) AEh = 70mV (7 A) AFh = 70mV (7 A) B0h = 70mV (7 A) B1h = 70mV (7 A) B2h = 70mV (7 A) B3h = 70mV (7 A) B4h = 70mV (7 A) B5h = 70mV (7 A) B6h = 70mV (7 A) B7h = 70mV (7 A) B8h = 70mV (7 A) B9h = 70mV (7 A) BAh = 70mV (7 A) BBh = 70mV (7 A) BCh = 70mV (7 A) BDh = 70mV (7 A) BEh = 70mV (7 A) BFh = 70mV (7 A) C0h = 70mV (7 A) C1h = 70mV (7 A) C2h = 70mV (7 A) C3h = 70mV (7 A) C4h = 70mV (7 A) C5h = 70mV (7 A) C6h = 70mV (7 A) C7h = 70mV (7 A) C8h = 70mV (7 A) C9h = 70mV (7 A) CAh = 70mV (7 A) CBh = 70mV (7 A) CCh = 70mV (7 A) CDh = 70mV (7 A) CEh = 70mV (7 A) CFh = 70mV (7 A) D0h = 70mV (7 A) D1h = 70mV (7 A) D2h = 70mV (7 A) D3h = 70mV (7 A) D4h = 70mV (7 A) D5h = 70mV (7 A) D6h = 70mV (7 A) D7h = 70mV (7 A) D8h = 70mV (7 A) D9h = 70mV (7 A) DAh = 70mV (7 A) DBh = 70mV (7 A) DCh = 70mV (7 A) DDh = 70mV (7 A) DEh = 70mV (7 A) DFh = 70mV (7 A) E0h = 70mV (7 A) E1h = 70mV (7 A) E2h = 70mV (7 A) E3h = 70mV (7 A) E4h = 70mV (7 A) E5h = 70mV (7 A) E6h = 70mV (7 A) E7h = 70mV (7 A) E8h = 70mV (7 A) E9h = 70mV (7 A) EAh = 70mV (7 A) EBh = 70mV (7 A) ECh = 70mV (7 A) EDh = 70mV (7 A) EEh = 70mV (7 A) EFh = 70mV (7 A) F0h = 70mV (7 A) F1h = 70mV (7 A) F2h = 70mV (7 A) F3h = 70mV (7 A) F4h = 70mV (7 A) F5h = 70mV (7 A) F6h = 70mV (7 A) F7h = 70mV (7 A) F8h = 70mV (7 A) F9h = 70mV (7 A) FAh = 70mV (7 A) FBh = 70mV (7 A) FCh = 70mV (7 A) FDh = 70mV (7 A) FEh = 70mV (7 A) FFh = 70mV (7 A)

9.3 VOUT_TARGET1_LSB Register (Offset = Ch) [Reset = FFh]

VOUT_TARGET1_LSB is shown in Table 9-5.

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Table 9-5 VOUT_TARGET1_LSB Register Field Descriptions

Bit	Field	Type	Reset	Description
7-0	VOUT_A	R/W	FFh	Output target Voltage Logical Register Vout Setting Lower Limit: 3.3V or 1V depending on SEL__FB_DIV20 Upper Limit: 48V or 24 V depending on SEL__FB_DIV20 Step size: 20mV or 10mV depending on SEL__FB_DIV20 Value Calculation for 20mV Value Calculation for 10mV

9.4 VOUT_TARGET1_MSB Register (Offset = Dh) [Reset = 00h]

VOUT_TARGET1_MSB is shown in Table 9-6.

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Table 9-6 VOUT_TARGET1_MSB Register Field Descriptions

Bit	Field	Type	Reset	Description
7-4	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.
3-0	VOUT_A	R/W	0h	Output target Voltage Logical Register Vout Setting Lower Limit: 3.3V or 1V depending on SEL__FB_DIV20 Upper Limit: 48V or 24 V depending on SEL__FB_DIV20 Step size: 20mV or 10mV depending on SEL__FB_DIV20 Value Calculation for 20mV. Value Calculation for 10mV.

9.5 USB_PD_STATUS_0 Register (Offset = 21h) [Reset = 00h]

USB_PD_STATUS_0 is shown in Table 9-7.

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USB-PD STATUS REGISTER

Table 9-7 USB_PD_STATUS_0 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.
6	CC_OPERATION	R	0h	Instantanous status for constant current (CC) ILIM operation
5.0	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.

9.6 STATUS_BYTE Register (Offset = 78h) [Reset = 00h]

STATUS_BYTE is shown in Table 9-8.

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FAULT STATUS LOW BYTE

Table 9-8 STATUS_BYTE Register Field Descriptions

Bit	Field	Type	Reset	Description
7	BUSY	R	0h	unit is busy 0h = unit not busy 1h = unit busy
6	OFF	R	0h	device not providing VOUT and/or unit is off 0h = unit on 1h = unit off
5	VOUT	R	0h	VOUT_OV fault 0h = no fault 1h = fault
4	IOUT	R	0h	IOUT_OC fault 0h = no fault 1h = fault
3	INPUT	R	0h	VIN_UV fault 0h = no fault 1h = fault
2	TEMPERATURE	R	0h	Temperature fault or warning 0h = no fault 1h = fault
1	CML	R	0h	Comm, Logic, Memory event 0h = no fault 1h = fault
0	OTHER	R	0h	other fault or warning 0h = no fault 1h = fault

9.7 USB_PD_CONTROL_0 Register (Offset = 81h) [Reset = 00h]

USB_PD_CONTROL_0 is shown in Table 9-9.

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USB-PD CONTROL REGISTER

Table 9-9 USB_PD_CONTROL_0 Register Field Descriptions

Bit	Field	Type	Reset	Description
7-2	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.
1	FORCE_DISCH	R/W	0h	Activates Vo discharge 0h = DISABLE 1h = ENABLE
0	CONV_EN2	R/W	0h	Enables the power stage 0h = DISABLE 1h = ENABLE

9.8 MFR_SPECIFIC_D0 Register (Offset = D0h) [Reset = 32h]

MFR_SPECIFIC_D0 is shown in Table 9-10.

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CONFIG_0 Device Configuration Register 0

Table 9-10 MFR_SPECIFIC_D0 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.
6	EN_NEG_CL_LIMIT	R/W	0h	Enables ILIM for negative current limit, If disabled ILIM clamps pos I_L 0h = DISABLE 1h = ENABLE
5	EN_VCC1	R/W	1h	Enables the VCC1 auxiliary LDO 0h = DISABLE 1h = ENABLE
4	IMON_LIMITER_EN	R/W	1h	Enables the Imon in limiter configuration 0h = DISABLE 1h = ENABLE
3	HICCUP_EN	R/W	0h	Enables Hiccup short circuit 0h = DISABLE 1h = ENABLE
2	DRSS_EN	R/W	0h	Enables Dual Spread Spectrum 0h = DISABLE 1h = ENABLE
1	USLEEP_EN	R/W	1h	Enables micro sleep mode 0h = DISABLE 1h = ENABLE
0	CONV_EN	R/W	0h	Enables the power stage 0h = DISABLE 1h = ENABLE

9.9 MFR_SPECIFIC_D1 Register (Offset = D1h) [Reset = 19h]

MFR_SPECIFIC_D1 is shown in Table 9-11.

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CONFIG_1 Device Configuration Register 1

Table 9-11 MFR_SPECIFIC_D1 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	EN_THER_WARN	R/W	0h	Enables Thermal Warning 0h = DISABLE 1h = ENABLE
6-5	THW_THRESHOLD	R/W	0h	Selects the Thermal Warning Threshold 0h = 140degC 1h = 125degC 2h = 110degC 3h = 95degC
4	EN_NINT	R/W	1h	Conigures the nFLT pin handler to act as interupt pin or nFLT pin 0h = DISABLE 1h = ENABLE
3	EN_DTRK_STARTOVER	R/W	1h	Enables a direct start-up if DTRK is enabled without waiting for the DTRK PWM signal 0h = DISABLE 1h = ENABLE
2	FORCE_BIASPIN	R/W	0h	Enables the priroty to supply VCC2 from BIAS by lowering the threshold. 0h = DISABLE 1h = ENABLE
1	EN_BB_2P_FPWM	R/W	0h	Enables 2phase BB swiching in fPWM mode 0h = DISABLE 1h = ENABLE
0	EN_BB_2P_PSM	R/W	1h	Enables 2phase BB swiching in PSM mode 0h = DISABLE 1h = ENABLE

9.10 MFR_SPECIFIC_D2 Register (Offset = D2h) [Reset = 7Ah]

MFR_SPECIFIC_D2 is shown in Table 9-12.

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Table 9-12 MFR_SPECIFIC_D2 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.
6	EN_ACTIVE_DVS	R/W	1h	Enables the active down ramp for DVS using the discharge 0h = DISABLE 1h = ENABLE
5-4	DVS_SLEW_RAMP	R/W	3h	Sets the positive and negative Vo slew rate for DVS 0h = 40mV/us 1h = 20mV/us 2h = 1mV/us 3h = 0.5mV/us
3-2	DISCHARGE_STRENGTH	R/W	2h	Sets the discharge current for the Vo discharge 0h = SLOW (25mA) 1h = MEDIUM (50mA) 2h = FAST (75mA) 3h = FAST (75mA)
1	DISCHARGE_CONFIG0	R/W	1h	Selects the discharge together with CONV_EN 0h = DISABLE 1h = ENABLE
0	DISCHARGE_CONFIG1	R/W	0h	Selects the discharge until the VTH DISCH 0h = DISABLE 1h = ENABLE

9.11 MFR_SPECIFIC_D5 Register (Offset = D5h) [Reset = 3Fh]

MFR_SPECIFIC_D5 is shown in Table 9-13.

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Table 9-13 MFR_SPECIFIC_D5 Register Field Descriptions

Bit	Field	Type	Reset	Description
7-6	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.
5-0	V_OVP2	R/W	3Fh	OVP2 threshold voltage 0h = 4.00V 1h = 4.500V 2h = 5.000V 3h = 5.500V 4h = 6.000V 5h = 6.500V 6h = 7.000V 7h = 7.500V 8h = 8.000V 9h = 8.500V Ah = 9.000V Bh = 9.500V Ch = 10.000V Dh = 10.500V Eh = 11.000V Fh = 11.500V 10h = 12.000V 11h = 12.500V 12h = 13.000V 13h = 13.500V 14h = 14.000V 15h = 14.500V 16h = 15.000V 17h = 15.500V 18h = 16.000V 19h = 17.000V 1Ah = 18.000V 1Bh = 19.000V 1Ch = 20.000V 1Dh = 21.000V 1Eh = 22.000V 1Fh = 23.000V 20h = 24.000V 21h = 25.000V 22h = 26.000V 23h = 27.000V 24h = 28.000V 25h = 29.000V 26h = 30.000V 27h = 31.000V 28h = 32.000V 29h = 33.000V 2Ah = 34.000V 2Bh = 35.000V 2Ch = 36.000V 2Dh = 37.000V 2Eh = 38.000V 2Fh = 39.000V 30h = 40.000V 31h = 41.000V 32h = 42.000V 33h = 43.000V 34h = 44.000V 35h = 45.000V 36h = 46.000V 37h = 47.000V 38h = 48.000V 39h = 49.000V 3Ah = 50.000V 3Bh = 51.000V 3Ch = 52.000V 3Dh = 53.000V 3Eh = 54.000V 3Fh = 55.000V

9.12 MFR_SPECIFIC_D6 Register (Offset = D6h) [Reset = 15h]

MFR_SPECIFIC_D6 is shown in Table 9-14.

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PS_Config0 Power stage Configuration

Table 9-14 MFR_SPECIFIC_D6 Register Field Descriptions

Bit	Field	Type	Reset	Description
7-6	CONFIG_SYNC_PIN	R/W	0h	Selects the SYNC function to mainain paralell operation 0h = Input sync on rising edge 1h = Input sync on falling edge 2h = Sync output from internal rising edge 3h = Sync output from internal falling edge (180deg phase)
5	EN_CONST_TDEAD	R/W	0h	Forces a constant deadtime for the setting of SEL_MIN_DEADTIME_GDRV. Disables frequnecy dependency of min Tdead 0h = DISABLE 1h = ENABLE
4	SEL_SCALE_DT	R/W	1h	Scales the gate driver dead time freq dependence and 2 MHz setpoint 0h = DISABLE 1h = ENABLE
3-2	SEL_MIN_DEADTIME_GDRV	R/W	1h	Defines the minimum dead time at fsw = 2Mhz for the gate driver 0h = 10 ns (No delay) 1h = 20 ns 2h = 40 ns 3h = 60 ns
1-0	BB_MIN_TIME_OFFSET	R/W	1h	Scales the BB min Ton or Toff time for the gate refresh 0h = 0.75 x 1h = 1 x 2h = 1.25 x 3h = 1.5 x

9.13 MFR_SPECIFIC_D7 Register (Offset = D7h) [Reset = 28h]

MFR_SPECIFIC_D7 is shown in Table 9-15.

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Table 9-15 MFR_SPECIFIC_D7 Register Field Descriptions

Bit	Field	Type	Reset	Description
7-6	NIL	R	0h	This bit is not implemented in hardware. During write operations data for this bit is ignored. During read operations 0 is returned.
5-4	SEL_INDUC_DERATE	R/W	2h	Select the inductor de-rating for PSM mode to slope 0h = DISABLE 1h = 20% 2h = 30% 3h = 40%
3-0	SEL_SLOPE_COMP	R/W	8h	Select slope comp current, as ratio of RT current 0h = 0.125 1h = 0.25 2h = 0.375 3h = 0.5 4h = 0.625 5h = 0.75 6h = 0.875 7h = 1 8h = 1.5 9h = 2 Ah = 2.5 Bh = 3 Ch = 3.5 Dh = 4 Eh = 4.5 Fh = 5

9.14 MFR_SPECIFIC_D8 Register (Offset = D8h) [Reset = 84h]

MFR_SPECIFIC_D8 is shown in Table 9-16.

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Table 9-16 MFR_SPECIFIC_D8 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	SEL_FB_DIV20	R/W	1h	Select internal FB divider ratio of 20 0h = DIV10 1h = DIV20
6	EN_CDC	R/W	0h	Enables the cable drop compensation 0h = DISABLE 1h = ENABLE
5-4	CDC_GAIN	R/W	0h	Selectes the Gain for the CDC voltage (1V) with respect to Vout 0h = 0.250V 1h = 0.500V 2h = 1.000V 3h = 2.000V
3-2	SEL_DRV1_SEQ	R/W	1h	Select the sequencing for the DRV 1 operation 0h = Pull-Low/ CP running if converter operation is off 1h = Pull-Low/ CP running if converter operation is on 2h = FORCE ACTIVE 3h = FORCE OFF
1-0	SEL_DRV1_SUP	R/W	0h	Select the driver configuration for DRV1 pin 0h = Open Drain (active = pull low) 1h = Vout 2h = VBIAS 3h = VCC2 (Charge Pump driver)

9.15 IVP_VOLTAGE Register (Offset = DAh) [Reset = FFh]

IVP_VOLTAGE is shown in Table 9-17.

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Table 9-17 IVP_VOLTAGE Register Field Descriptions

Bit	Field	Type	Reset	Description
7-0	V_IVP	R/W	FFh	Input Overvoltage Protection and Regulatoin Threshold 0h = 4.75V 1h = 4.875V 2h = 5.000V 3h = 5.125V 4h = 5.250V 5h = 5.375V 6h = 5.500V 7h = 5.625V 8h = 5.750V 9h = 5.875V Ah = 6.000V Bh = 6.125V Ch = 6.250V Dh = 6.375V Eh = 6.500V Fh = 6.625V 10h = 6.750V 11h = 6.875V 12h = 7.000V 13h = 7.125V 14h = 7.250V 15h = 7.375V 16h = 7.500V 17h = 7.625V 18h = 7.750V 19h = 7.875V 1Ah = 8.000V 1Bh = 8.125V 1Ch = 8.250V 1Dh = 8.375V 1Eh = 8.500V 1Fh = 8.625V 20h = 8.750V 21h = 8.875V 22h = 9.000V 23h = 9.125V 24h = 9.250V 25h = 9.375V 26h = 9.500V 27h = 9.625V 28h = 9.750V 29h = 9.875V 2Ah = 10.000V 2Bh = 10.125V 2Ch = 10.250V 2Dh = 10.375V 2Eh = 10.500V 2Fh = 10.625V 30h = 10.750V 31h = 10.875V 32h = 11.000V 33h = 11.125V 34h = 11.250V 35h = 11.375V 36h = 11.500V 37h = 11.625V 38h = 11.750V 39h = 11.875V 3Ah = 12.000V 3Bh = 12.125V 3Ch = 12.250V 3Dh = 12.375V 3Eh = 12.500V 3Fh = 12.625V 40h = 12.750V 41h = 12.875V 42h = 13.000V 43h = 13.125V 44h = 13.250V 45h = 13.375V 46h = 13.500V 47h = 13.625V 48h = 13.750V 49h = 13.875V 4Ah = 14.000V 4Bh = 14.125V 4Ch = 14.250V 4Dh = 14.375V 4Eh = 14.500V 4Fh = 14.625V 50h = 14.750V 51h = 14.875V 52h = 15.000V 53h = 15.125V 54h = 15.250V 55h = 15.375V 56h = 15.500V 57h = 15.625V 58h = 15.750V 59h = 15.875V 5Ah = 16.000V 5Bh = 16.125V 5Ch = 16.250V 5Dh = 16.375V 5Eh = 16.500V 5Fh = 16.625V 60h = 16.750V 61h = 16.875V 62h = 17.000V 63h = 17.125V 64h = 17.250V 65h = 17.375V 66h = 17.500V 67h = 17.625V 68h = 17.750V 69h = 17.875V 6Ah = 18.000V 6Bh = 18.125V 6Ch = 18.250V 6Dh = 18.375V 6Eh = 18.500V 6Fh = 18.625V 70h = 18.750V 71h = 18.875V 72h = 19.000V 73h = 19.125V 74h = 19.250V 75h = 19.375V 76h = 19.500V 77h = 19.625V 78h = 19.750V 79h = 19.875V 7Ah = 20.000V 7Bh = 20.125V 7Ch = 20.250V 7Dh = 20.375V 7Eh = 20.500V 7Fh = 20.625V 80h = 20.750V 81h = 20.875V 82h = 21.000V 83h = 21.125V 84h = 21.250V 85h = 21.375V 86h = 21.500V 87h = 21.625V 88h = 21.750V 89h = 21.875V 8Ah = 22.000V 8Bh = 22.125V 8Ch = 22.250V 8Dh = 22.375V 8Eh = 22.500V 8Fh = 22.625V 90h = 22.750V 91h = 22.875V 92h = 23.000V 93h = 23.125V 94h = 23.250V 95h = 23.500V 96h = 23.750V 97h = 24.000V 98h = 24.250V 99h = 24.500V 9Ah = 24.750V 9Bh = 25.000V 9Ch = 25.250V 9Dh = 25.500V 9Eh = 25.750V 9Fh = 26.000V A0h = 26.250V A1h = 26.500V A2h = 26.750V A3h = 27.000V A4h = 27.250V A5h = 27.500V A6h = 27.750V A7h = 28.000V A8h = 28.250V A9h = 28.500V AAh = 28.750V ABh = 29.000V ACh = 29.250V ADh = 29.500V AEh = 29.750V AFh = 30.000V B0h = 30.250V B1h = 30.500V B2h = 30.750V B3h = 31.000V B4h = 31.250V B5h = 31.500V B6h = 31.750V B7h = 32.000V B8h = 32.250V B9h = 32.500V BAh = 32.750V BBh = 33.000V BCh = 33.250V BDh = 33.500V BEh = 33.750V BFh = 34.000V C0h = 34.250V C1h = 34.500V C2h = 34.750V C3h = 35.000V C4h = 35.250V C5h = 35.500V C6h = 35.750V C7h = 36.000V C8h = 36.250V C9h = 36.500V CAh = 36.750V CBh = 37.000V CCh = 37.250V CDh = 37.500V CEh = 37.750V CFh = 38.000V D0h = 38.250V D1h = 38.500V D2h = 38.750V D3h = 39.000V D4h = 39.250V D5h = 39.500V D6h = 39.750V D7h = 40.000V D8h = 40.250V D9h = 40.500V DAh = 40.750V DBh = 41.000V DCh = 41.250V DDh = 41.500V DEh = 41.750V DFh = 42.000V E0h = 42.250V E1h = 42.500V E2h = 42.750V E3h = 43.000V E4h = 43.250V E5h = 43.500V E6h = 43.750V E7h = 44.000V E8h = 44.250V E9h = 44.500V EAh = 44.750V EBh = 45.000V ECh = 45.250V EDh = 45.500V EEh = 45.750V EFh = 46.000V F0h = 46.250V F1h = 46.500V F2h = 46.750V F3h = 47.000V F4h = 47.250V F5h = 47.500V F6h = 47.750V F7h = 48.000V F8h = 48.250V F9h = 48.500V FAh = 48.750V FBh = 49.000V FCh = 49.250V FDh = 49.500V FEh = 49.750V FFh = 50.000V