SLUSET4 Data sheet

Table 6-4 lists the memory-mapped registers for the BQ25758 registers. All register offset addresses not listed in Table 6-4 should be considered as reserved locations and the register contents should not be modified.

Table 6-4 BQ25758 Registers

Address	Acronym	Register Name	Section
0x2	REG0x02_Output_Current_Limit	Output Current Limit	Go
0x4	REG0x04_Output_Voltage_Limit	Output Voltage Limit	Go
0x6	REG0x06_Input_Current_DPM_Limit	Input Current DPM Limit	Go
0x8	REG0x08_Input_Voltage_DPM_Limit	Input Voltage DPM Limit	Go
0xA	REG0x0A_Reverse_Mode_Input_Current_Limit	Reverse Mode Input Current Limit	Go
0xC	REG0x0C_Reverse_Mode_Input_Voltage_Limit	Reverse Mode Input Voltage Limit	Go
0x15	REG0x15_Timer_Control	Timer Control	Go
0x17	REG0x17_Converter_Control	Converter Control	Go
0x18	REG0x18_Pin_Control	Pin Control	Go
0x19	REG0x19_Power_Path_and_Reverse_Mode_Control	Power Path and Reverse Mode Control	Go
0x1B	REG0x1B_TS_Threshold_Control	TS Threshold Control	Go
0x1C	REG0x1C_TS_Region_Behavior_Control	TS Region Behavior Control	Go
0x1D	REG0x1D_TS_Reverse_Mode_Threshold_Control	TS Reverse Mode Threshold Control	Go
0x1E	REG0x1E_Bypass_and_Overload_Control	Bypass and Overload Control	Go
0x21	REG0x21_Status_1	Status 1	Go
0x22	REG0x22_Status_2	Status 2	Go
0x23	REG0x23_Status_3	Status 3	Go
0x24	REG0x24_Fault_Status	Fault Status	Go
0x25	REG0x25_Flag_1	Flag 1	Go
0x26	REG0x26_Flag_2	Flag 2	Go
0x27	REG0x27_Fault_Flag	Fault Flag	Go
0x28	REG0x28_Mask_1	Mask 1	Go
0x29	REG0x29_Mask_2	Mask 2	Go
0x2A	REG0x2A_Fault_Mask	Fault Mask	Go
0x2B	REG0x2B_ADC_Control	ADC Control	Go
0x2C	REG0x2C_ADC_Channel_Control	ADC Channel Control	Go
0x2D	REG0x2D_IAC_ADC	IAC ADC	Go
0x2F	REG0x2F_IOUT_ADC	IOUT ADC	Go
0x31	REG0x31_VAC_ADC	VAC ADC	Go
0x33	REG0x33_VOUT_ADC	VOUT ADC	Go
0x37	REG0x37_TS_ADC	TS ADC	Go
0x3B	REG0x3B_Gate_Driver_Strength_Control	Gate Driver Strength Control	Go
0x3C	REG0x3C_Gate_Driver_Dead_Time_Control	Gate Driver Dead Time Control	Go
0x3D	REG0x3D_Part_Information	Part Information	Go
0x62	REG0x62_Reverse_Mode_Current	Reverse Mode Current	Go

Complex bit access types are encoded to fit into small table cells. Table 6-5 shows the codes that are used for access types in this section.

Table 6-5 BQ25758 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

6.5.1 REG0x02_Output_Current_Limit Register (Address = 0x2) [Reset = 0x0640]

REG0x02_Output_Current_Limit is shown in Table 6-6.

Return to the Summary Table.

I2C REG0x03=[15:8], I2C REG0x02=[7:0]

Table 6-6 REG0x02_Output_Current_Limit Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:11	RESERVED	R	0x0		Reserved
10:2	IOUT_REG	R/W	0x190	Reset by: REG_RESET WATCHDOG	Output Current Regulation Limit with 5mΩ ROUT_SNS: Actual current is the lower of IOUT_REG and IOUT pin POR: 20000mA (190h) Range: 400mA-20000mA (8h-190h) Clamped Low Clamped High Bit Step: 50mA
1:0	RESERVED	R	0x0		Reserved

6.5.2 REG0x04_Output_Voltage_Limit Register (Address = 0x4) [Reset = 0x03E8]

REG0x04_Output_Voltage_Limit is shown in Table 6-7.

Return to the Summary Table.

I2C REG0x05=[15:8], I2C REG0x04=[7:0]

Table 6-7 REG0x04_Output_Voltage_Limit Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:14	RESERVED	R	0x0		Reserved
13:2	VOUT_REG	R/W	0xFA	Reset by: REG_RESET	Output Voltage Regulation Limit: POR: 5000mV (FAh) Range: 3300mV-60000mV (A5h-BB8h) Clamped Low Clamped High Bit Step: 20mV
1:0	RESERVED	R	0x0		Reserved

6.5.3 REG0x06_Input_Current_DPM_Limit Register (Address = 0x6) [Reset = 0x0640]

REG0x06_Input_Current_DPM_Limit is shown in Table 6-8.

Return to the Summary Table.

I2C REG0x07=[15:8], I2C REG0x06=[7:0]

Table 6-8 REG0x06_Input_Current_DPM_Limit Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:11	RESERVED	R	0x0		Reserved
10:2	IAC_DPM	R/W	0x190	Reset by: REG_RESET	Input Current DPM Regulation Limit with 5mΩ RAC_SNS: Actual input current limit is the lower of IAC_DPM and IIN pin POR: 20000mA (190h) Range: 400mA-20000mA (8h-190h) Clamped Low Clamped High Bit Step: 50mA
1:0	RESERVED	R	0x0		Reserved

6.5.4 REG0x08_Input_Voltage_DPM_Limit Register (Address = 0x8) [Reset = 0x0348]

REG0x08_Input_Voltage_DPM_Limit is shown in Table 6-9.

Return to the Summary Table.

I2C REG0x09=[15:8], I2C REG0x08=[7:0]

Table 6-9 REG0x08_Input_Voltage_DPM_Limit Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:14	RESERVED	R	0x0		Reserved
13:2	VAC_DPM	R/W	0xD2	Reset by: REG_RESET	Input Voltage Regulation Limit: POR: 4200mV (D2h) Range: 4200mV-60000mV (D2h-BB8h) Clamped Low Clamped High Bit Step: 20mV
1:0	RESERVED	R	0x0		Reserved

6.5.5 REG0x0A_Reverse_Mode_Input_Current_Limit Register (Address = 0xA) [Reset = 0x0640]

REG0x0A_Reverse_Mode_Input_Current_Limit is shown in Table 6-10.

Return to the Summary Table.

I2C REG0x0B=[15:8], I2C REG0x0A=[7:0]

Table 6-10 REG0x0A_Reverse_Mode_Input_Current_Limit Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:11	RESERVED	R	0x0		Reserved
10:2	IAC_REV	R/W	0x190	Reset by: REG_RESET	Input Current Regulation in Reverse Mode with 5mΩ RAC_SNS: POR: 20000mA (190h) Range: 400mA-20000mA (8h-190h) Clamped Low Clamped High Bit Step: 50mA
1:0	RESERVED	R	0x0		Reserved

6.5.6 REG0x0C_Reverse_Mode_Input_Voltage_Limit Register (Address = 0xC) [Reset = 0x03E8]

REG0x0C_Reverse_Mode_Input_Voltage_Limit is shown in Table 6-11.

Return to the Summary Table.

I2C REG0x0D=[15:8], I2C REG0x0C=[7:0]

Table 6-11 REG0x0C_Reverse_Mode_Input_Voltage_Limit Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:14	RESERVED	R	0x0		Reserved
13:2	VAC_REV	R/W	0xFA	Reset by: REG_RESET	VAC Voltage Regulation in Reverse Mode: POR: 5000mV (FAh) Range: 3300mV-60000mV (A5h-BB8h) Clamped Low Clamped High Bit Step: 20mV
1:0	RESERVED	R	0x0		Reserved

6.5.7 REG0x15_Timer_Control Register (Address = 0x15) [Reset = 0x10]

REG0x15_Timer_Control is shown in Table 6-12.

Return to the Summary Table.

Table 6-12 REG0x15_Timer_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7:6	RESERVED	R	0x0		Reserved
5:4	WATCHDOG	R/W	0x1	Reset by: REG_RESET	Watchdog timer control: 00b = Disable 01b = 40s 10b = 80s 11b = 160s
3	RESERVED	R	0x0		Reserved
2:1	RESERVED	R	0x0		Reserved
0	RESERVED	R	0x0		Reserved

6.5.8 REG0x17_Converter_Control Register (Address = 0x17) [Reset = 0x09]

REG0x17_Converter_Control is shown in Table 6-13.

Return to the Summary Table.

Table 6-13 REG0x17_Converter_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7:6	RESERVED	R	0x0		Reserved
5	WD_RST	R/W	0x0	Reset by: REG_RESET	I2C Watchdog timer reset control: 0b = Normal 1b = Reset (bit goes back to 0 after timer reset)
4	DIS_CE_PIN	R/W	0x0	Reset by: REG_RESET	/CE pin function disable: 0b = /CE pin enabled 1b = /CE pin disabled
3	EN_CHG_BIT_RESET_BEHAVIOR	R/W	0x1	Reset by: REG_RESET	Controls the EN_CHG bit behavior when WATCHDOG expires: 0b = EN_CHG bit resets to 0 1b = EN_CHG bit resets to 1
2	EN_HIZ	R/W	0x0	Reset by: REG_RESET WATCHDOG Adapter Plug In	HIZ mode enable: 0b = Disable 1b = Enable
1	EN_IBAT_LOAD	R/W	0x0	Sinks current from SRN to GND. Recommend to disable IBAT ADC (IBAT_ADC_DIS = 1) while this bit is active. Reset by: REG_RESET WATCHDOG	Battery Load (IBAT_LOAD) Enable: 0b = Disabled 1b = Enabled
0	EN_CHG	R/W	0x1	Reset by: REG_RESET WATCHDOG	Enable control: 0b = Disable 1b = Enable

6.5.9 REG0x18_Pin_Control Register (Address = 0x18) [Reset = 0xC0]

REG0x18_Pin_Control is shown in Table 6-14.

Return to the Summary Table.

Table 6-14 REG0x18_Pin_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	EN_IOUT_PIN	R/W	0x1	Reset by: REG_RESET WATCHDOG	IOUT pin function enable: 0b = IOUT pin disabled 1b = IOUT pin enabled
6	EN_IIN_PIN	R/W	0x1	Reset by: REG_RESET WATCHDOG	IIN pin function enable: 0b = IIN pin disabled 1b = IIN pin enabled
5	DIS_PG_PIN	R/W	0x0	Reset by: REG_RESET	PG pin function disable: 0b = PG pin enabled 1b = PG pin disabled
4	DIS_STAT_PIN	R/W	0x0	Reset by: REG_RESET	STAT pin function disable: 0b = STAT pin enabled 1b = STAT pin disabled
3	FORCE_STAT4_ON	R/W	0x0	Reset by: REG_RESET	CE_STAT4 pin override: Can only be forced on if DIS_CE_PIN = 1 0b = CE_STAT4 open-drain off 1b = CE_STAT4 pulls LOW
2	FORCE_STAT3_ON	R/W	0x0	Reset by: REG_RESET	PG_STAT3 pin override: Can only be forced on if DIS_PG_PIN = 1 0b = PG_STAT3 open-drain off 1b = PG_STAT3 pulls LOW
1	RESERVED	R	0x0		Reserved
0	FORCE_STAT_ON	R/W	0x0	Reset by: REG_RESET	STAT pin override: Can only be forced on if DIS_STAT_PIN = 1 0b = STAT open-drain off 1b = STAT pulls LOW

6.5.10 REG0x19_Power_Path_and_Reverse_Mode_Control Register (Address = 0x19) [Reset = 0x00]

REG0x19_Power_Path_and_Reverse_Mode_Control is shown in Table 6-15.

Return to the Summary Table.

Table 6-15 REG0x19_Power_Path_and_Reverse_Mode_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	REG_RST	R/W	0x0	Reset by: REG_RESET	Register reset to default values: 0b = Not reset 1b = Reset (bit goes back to 0 after register reset)
6	EN_IAC_LOAD	R/W	0x0	Reset by: REG_RESET WATCHDOG	VAC Load (IAC_LOAD) Enable: 0b = Disabled 1b = Enabled
5	EN_PFM	R/W	0x0	This bit is reset upon a valid SYNC signal detection on FSW_SYNC pin. Host can set this bit back to 1 to force PFM operation even with a valid SYNC input Reset by: REG_RESET	Enable PFM mode to improve light-load efficiency: 0b = Disable (Fixed-frequency DCM operation) 1b = Enable (PFM operation)
4	RESERVED	R	0x0		Reserved
3	PWRPATH_REDUCE_VDRV	R/W	0x0	Reset by: REG_RESET WATCHDOG	Bypass Mode Gate-Drive Voltage Select: 0b = 10V 1b = 7V
2	RESERVED	R	0x0		Reserved
1	RESERVED	R	0x0
0	EN_REV	R/W	0x0	Reset by: REG_RESET WATCHDOG Adapter Plug In	Reverse Mode control: 0b = Disable 1b = Enable

6.5.11 REG0x1B_TS_Threshold_Control Register (Address = 0x1B) [Reset = 0x82]

REG0x1B_TS_Threshold_Control is shown in Table 6-16.

Return to the Summary Table.

Table 6-16 REG0x1B_TS_Threshold_Control Register Field Descriptions

Bit	Field	Type	Reset	Description
7:6	TS_T5	R/W	0x2	Reserved
5:4	RESERVED	R	0x0	Reserved
3:2	RESERVED	R	0x0	Reserved
1:0	RESERVED	R/W	0x2	Reserved

6.5.12 REG0x1C_TS_Region_Behavior_Control Register (Address = 0x1C) [Reset = 0x00]

REG0x1C_TS_Region_Behavior_Control is shown in Table 6-17.

Return to the Summary Table.

Table 6-17 REG0x1C_TS_Region_Behavior_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	RESERVED	R	0x0		Reserved
6:5	RESERVED	R	0x0		Reserved
4	RESERVED	R	0x0		Reserved
3:2	RESERVED	R	0x0		Reserved
1	RESERVED	R	0x0	EN_VREG_TEMP_COMP and EN_JEITA cannot be set to 1 at the same time.	Reserved
0	RESERVED	R/W	0x0	Reset by: REG_RESET	Reserved

6.5.13 REG0x1D_TS_Reverse_Mode_Threshold_Control Register (Address = 0x1D) [Reset = 0x40]

REG0x1D_TS_Reverse_Mode_Threshold_Control is shown in Table 6-18.

Return to the Summary Table.

Table 6-18 REG0x1D_TS_Reverse_Mode_Threshold_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7:6	BHOT	R/W	0x1	Reset by: REG_RESET	Reverse Mode TS HOT temperature threshold control: 00b = 37.7% (55C) 01b = 34.2% (60C) 10b = 31.25%(65C) 11b = Disable
5	BCOLD	R/W	0x0	Reset by: REG_RESET	Reverse Mode TS COLD temperature threshold control: 0b = 77.15% (-10C) 1b = 80% (-20C)
4:0	RESERVED	R	0x0		Reserved

6.5.14 REG0x1E_Bypass_and_Overload_Control Register (Address = 0x1E) [Reset = 0x20]

REG0x1E_Bypass_and_Overload_Control is shown in Table 6-19.

Return to the Summary Table.

Table 6-19 REG0x1E_Bypass_and_Overload_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	RESERVED	R	0x0		Reserved
6	TOVLD_SET	R/W	0x0	Reset by: REG_RESET	TOVLD timer control: 0b = 25ms 1b = 50ms
5	SYSREV_UV	R/W	0x1	Reset by: REG_RESET	Reverse Mode System UVP: 0b = 80% of VSYS_REV target 1b = Fixed at 3.3V
4	EN_BYPASS	R/W	0x0	Bypass mode only supported in forward mode, not operational in reverse mode. Reset by: REG_RESET WATCHDOG	Bypass mode control: Note the device automatically clears this bit and sets EN_HIZ bit when the output current exceeds IOUT_REG register value in bypass mode. 0b = Disable 1b = Enable
3	EN_OVLD_TMAX	R/W	0x0	Reset by: REG_RESET	TMAX counter control: 0b = Disable TMAX: allows new overload event after tOVLD and current falling below ILIM1 1b = Enable TMAX: allow new overload event after tMAX, even if current does not fall below ILIM1
2	EN_OVLD_3L	R/W	0x0	Reset by: REG_RESET	Three-level overload mode control: 0b = Disable 1b = Enable
1	OVLD_ILIM2	R/W	0x0	Reset by: REG_RESET	Overload higher current limit (percentage above IIN or IOUT): 0b = 1.5 1b = 2
0	EN_OVLD	R/W	0x0	Reset by: REG_RESET	Overload Mode control: 0b = Disable 1b = Enable

6.5.15 REG0x21_Status_1 Register (Address = 0x21) [Reset = 0x00]

REG0x21_Status_1 is shown in Table 6-20.

Return to the Summary Table.

Table 6-20 REG0x21_Status_1 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	ADC_DONE_STAT	R	0x0	ADC conversion status (in one-shot mode only): 0b = Conversion not complete 1b = Conversion complete
6	IAC_DPM_STAT	R	0x0	Input Current regulation status: 0b = Normal 1b = In Input Current regulation (ILIM pin or IAC_DPM)
5	VAC_DPM_STAT	R	0x0	Input Voltage regulation status: 0b = Normal 1b = In Input Voltage regulation (VAC_DPM or VSYS_REV)
4	RESERVED	R	0x0	Reserved
3	WD_STAT	R	0x0	I2C Watchdog timer status: 0b = Normal 1b = WD timer expired
2:0	CHARGE_STAT	R	0x0	Converter status: 000b = Not switching 001b = Reserved 010b = Reserved 011b = CC Mode 100b = CV Mode 101b = CV Mode 110b = CV Mode 111b = Reserved

6.5.16 REG0x22_Status_2 Register (Address = 0x22) [Reset = 0x00]

REG0x22_Status_2 is shown in Table 6-21.

Return to the Summary Table.

Table 6-21 REG0x22_Status_2 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	PG_STAT	R	0x0	Input Power Good status: 0b = Not Power Good 1b = Power Good
6:4	TS_STAT	R	0x0	TS status: 000b = Normal 001b = TS Warm 010b = TS Cool 011b = TS Cold 100b = TS Hot
3:2	RESERVED	R	0x0	Reserved
1:0	RESERVED	R	0x0	Reserved

6.5.17 REG0x23_Status_3 Register (Address = 0x23) [Reset = 0x00]

REG0x23_Status_3 is shown in Table 6-22.

Return to the Summary Table.

Table 6-22 REG0x23_Status_3 Register Field Descriptions

Bit	Field	Type	Reset	Description
7:6	RESERVED	R	0x0	Reserved
5:4	FSW_SYNC_STAT	R	0x0	FSW_SYNC pin status: 00b = Normal, no external clock detected 01b = Valid ext. clock detected 10b = Pin fault (frequency out-of-range) 11b = Reserved
3	RESERVED	R	0x0	Reserved
2	REVERSE_STAT	R	0x0	Converter Reverse Mode status: 0b = Reverse Mode off 1b = Reverse Mode On
1	RESERVED	R	0x0	Reserved
0	RESERVED	R	0x0	Reserved

6.5.18 REG0x24_Fault_Status Register (Address = 0x24) [Reset = 0x00]

REG0x24_Fault_Status is shown in Table 6-23.

Return to the Summary Table.

Table 6-23 REG0x24_Fault_Status Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	VAC_UV_STAT	R	0x0		Input under-voltage status: 0b = Input Normal 1b = Device in Input under-voltage protection
6	VAC_OV_STAT	R	0x0		Input over-voltage status: 0b = Input Normal 1b = Device in Input over-voltage protection
5	IBAT_OCP_STAT	R	0x0		Battery over-current status: 0b = Battery current normal 1b = Battery over-current detected
4	VBAT_OV_STAT	R	0x0		Battery over-voltage status: 0b = Normal 1b = Device in Battery over-voltage protection
3	TSHUT_STAT	R	0x0		Thermal shutdown status: 0b = Normal 1b = Device in thermal shutdown protection
2	RESERVED	R	0x0		Reserved
1	DRV_OKZ_STAT	R	0x0	In battery-only mode with ADC disabled, this bit always reads '1'	DRV_SUP pin voltage status: 0b = Normal 1b = DRV_SUP pin voltage is out of valid range
0	RESERVED	R	0x0		Reserved

6.5.19 REG0x25_Flag_1 Register (Address = 0x25) [Reset = 0x00]

REG0x25_Flag_1 is shown in Table 6-24.

Return to the Summary Table.

Table 6-24 REG0x25_Flag_1 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	ADC_DONE_FLAG	R	0x0	ADC conversion INT flag (in one-shot mode only): Note: always reads 0 in continuous mode Access: R (ClearOnRead) 0b = Conversion not complete 1b = Conversion complete
6	IAC_DPM_FLAG	R	0x0	Input Current regulation INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Device entered Input Current regulation
5	VAC_DPM_FLAG	R	0x0	Input Voltage regulation INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Device entered Input Voltage regulation
4	RESERVED	R	0x0	Reserved
3	WD_FLAG	R	0x0	I2C Watchdog timer INT flag: Access: R (ClearOnRead) 0b = Normal 1b = WD_STAT rising edge detected
2	RESERVED	R	0x0	Reserved
1	RESERVED	R	0x0	Reserved
0	RESERVED	R	0x0	Reserved

6.5.20 REG0x26_Flag_2 Register (Address = 0x26) [Reset = 0x00]

REG0x26_Flag_2 is shown in Table 6-25.

Return to the Summary Table.

Table 6-25 REG0x26_Flag_2 Register Field Descriptions

Bit	Field	Type	Reset	Description
7	PG_FLAG	R	0x0	Input Power Good INT flag: Access: R (ClearOnRead) 0b = Normal 1b = PG signal toggle detected
6	RESERVED	R	0x0	Reserved
5	RESERVED	R	0x0	Reserved
4	TS_FLAG	R	0x0	TS INT flag: Access: R (ClearOnRead) 0b = Normal 1b = TS_STAT[2:0] bits changed (transitioned to any state)
3	REVERSE_FLAG	R	0x0	Reverse Mode INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Reverse Mode toggle detected
2	RESERVED	R	0x0	Reserved
1	FSW_SYNC_FLAG	R	0x0	FSW_SYNC pin signal INT flag: Access: R (ClearOnRead) 0b = Normal 1b = FSW_SYNC status changed
0	RESERVED	R	0x0	Reserved

6.5.21 REG0x27_Fault_Flag Register (Address = 0x27) [Reset = 0x00]

REG0x27_Fault_Flag is shown in Table 6-26.

Return to the Summary Table.

Table 6-26 REG0x27_Fault_Flag Register Field Descriptions

Bit	Field	Type	Reset	Description
7	VAC_UV_FLAG	R	0x0	Input under-voltage INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Entered input under-voltage fault
6	VAC_OV_FLAG	R	0x0	Input over-voltage INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Entered Input over-voltage fault
5	IBAT_OCP_FLAG	R	0x0	Battery over-current INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Entered Battery over-current fault
4	VBAT_OV_FLAG	R	0x0	Battery over-voltage INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Entered battery over-voltage fault
3	TSHUT_FLAG	R	0x0	Thermal shutdown INT flag: Access: R (ClearOnRead) 0b = Normal 1b = Entered TSHUT fault
2	RESERVED	R	0x0	Reserved
1	DRV_OKZ_FLAG	R	0x0	DRV_SUP pin voltage INT flag: Access: R (ClearOnRead) 0b = Normal 1b = DRV_SUP pin fault detected
0	RESERVED	R	0x0	Reserved

6.5.22 REG0x28_Mask_1 Register (Address = 0x28) [Reset = 0x00]

REG0x28_Mask_1 is shown in Table 6-27.

Return to the Summary Table.

Table 6-27 REG0x28_Mask_1 Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	ADC_DONE_MASK	R/W	0x0	Reset by: REG_RESET	ADC conversion INT mask (in one-shot mode only): 0b = ADC_DONE produces INT pulse 1b = ADC_DONE does not produce INT pulse
6	IAC_DPM_MASK	R/W	0x0	Reset by: REG_RESET	Input Current regulation INT mask: 0b = IAC_DPM_FLAG produces INT pulse 1b = IAC_DPM_FLAG does not produce INT pulse
5	VAC_DPM_MASK	R/W	0x0	Reset by: REG_RESET	Input Voltage regulation INT mask: 0b = VAC_DPM_FLAG produces INT pulse 1b = VAC_DPM_FLAG does not produce INT pulse
4	RESERVED	R	0x0		Reserved
3	WD_MASK	R/W	0x0	Reset by: REG_RESET	I2C Watchdog timer INT mask: 0b = WD expiration produces INT pulse 1b = WD expiration does not produce INT pulse
2	RESERVED	R	0x0		Reserved
1	RESERVED	R	0x0		Reserved
0	RESERVED	R/W	0x0	Reset by: REG_RESET	Reserved

6.5.23 REG0x29_Mask_2 Register (Address = 0x29) [Reset = 0x00]

REG0x29_Mask_2 is shown in Table 6-28.

Return to the Summary Table.

Table 6-28 REG0x29_Mask_2 Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	PG_MASK	R/W	0x0	Reset by: REG_RESET	Input Power Good INT mask: 0b = PG toggle produces INT pulse 1b = PG toggle does not produce INT pulse
6	RESERVED	R	0x0		Reserved
5	RESERVED	R	0x0		Reserved
4	TS_MASK	R/W	0x0	Reset by: REG_RESET	TS INT mask: 0b = TS_STAT change produces INT pulse 1b = TS_STAT change does not produce INT pulse
3	REVERSE_MASK	R/W	0x0	Reset by: REG_RESET	Reverse Mode INT mask: 0b = REVERSE_STAT toggle produces INT pulse 1b = REVERSE_STAT toggle does no produce INT pulse
2	RESERVED	R	0x0		Reserved
1	FSW_SYNC_MASK	R/W	0x0	Reset by: REG_RESET	FSW_SYNC pin signal INT mask: 0b = FSW_SYNC status change produces INT pulse 1b = FSW_SYNC status change does not produce INT pulse
0	RESERVED	R	0x0		Reserved

6.5.24 REG0x2A_Fault_Mask Register (Address = 0x2A) [Reset = 0x00]

REG0x2A_Fault_Mask is shown in Table 6-29.

Return to the Summary Table.

Table 6-29 REG0x2A_Fault_Mask Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	VAC_UV_MASK	R/W	0x0	Reset by: REG_RESET	Input under-voltage INT mask: 0b = Input under-voltage event produces INT pulse 1b = Input under-voltage event does not produce INT pulse
6	VAC_OV_MASK	R/W	0x0	Reset by: REG_RESET	Input over-voltage INT mask: 0b = Input over-voltage event produces INT pulse 1b = Input over-voltage event does not produce INT pulse
5	IBAT_OCP_MASK	R/W	0x0	Reset by: REG_RESET	Battery over-current INT mask: 0b = Battery over-current event produces INT pulse 1b = Battery over-current event does not produce INT pulse
4	VBAT_OV_MASK	R/W	0x0	Reset by: REG_RESET	Battery over-voltage INT mask: 0b = Battery over-voltage event produces INT pulse 1b = Battery over-voltage event does not produce INT pulse
3	TSHUT_MASK	R/W	0x0	Reset by: REG_RESET	Thermal shutdown INT mask: 0b = TSHUT event produces INT pulse 1b = TSHUT event does not produce INT pulse
2	RESERVED	R	0x0		Reserved
1	DRV_OKZ_MASK	R/W	0x0	Reset by: REG_RESET	DRV_SUP pin voltage INT mask: 0b = DRV_SUP pin fault produces INT pulse 1b = DRV_SUP pin fault does not produce INT pulse
0	RESERVED	R	0x0		Reserved

6.5.25 REG0x2B_ADC_Control Register (Address = 0x2B) [Reset = 0x60]

REG0x2B_ADC_Control is shown in Table 6-30.

Return to the Summary Table.

Table 6-30 REG0x2B_ADC_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	ADC_EN	R/W	0x0	When EN_VREG_TEMP_COMP = 1, the ADC will be automatically enabled, regardless of the status of ADC_EN Reset by: REG_RESET WATCHDOG	ADC control: 0b = Disable ADC 1b = Enable ADC
6	ADC_RATE	R/W	0x1	Reset by: REG_RESET	ADC conversion rate control: 0b = Continuous conversion 1b = One-shot conversion
5:4	ADC_SAMPLE	R/W	0x2	Reset by: REG_RESET	ADC sample speed: 00b = 15 bit effective resolution 01b = 14 bit effective resolution 10b = 13 bit effective resolution 11b = Reserved
3	ADC_AVG	R/W	0x0	Reset by: REG_RESET	ADC average control: 0b = Single value 1b = Running average
2	ADC_AVG_INIT	R/W	0x0	Reset by: REG_RESET	ADC average initial value control: 0b = Start average using existing register value 1b = Start average using new ADC conversion
1:0	RESERVED	R	0x0		Reserved

6.5.26 REG0x2C_ADC_Channel_Control Register (Address = 0x2C) [Reset = 0x0A]

REG0x2C_ADC_Channel_Control is shown in Table 6-31.

Return to the Summary Table.

Table 6-31 REG0x2C_ADC_Channel_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7	IAC_ADC_DIS	R/W	0x0	Reset by: REG_RESET	IAC ADC control 0b = Enable 1b = Disable
6	IOUT_ADC_DIS	R/W	0x0	Recommend to disable IOUT ADC channel when EN_IBAT_LOAD bit is 1 Reset by: REG_RESET	IOUT ADC control 0b = Enable 1b = Disable
5	VAC_ADC_DIS	R/W	0x0	Reset by: REG_RESET	VAC ADC control 0b = Enable 1b = Disable
4	VOUT_ADC_DIS	R/W	0x0	Reset by: REG_RESET	VOUT ADC control 0b = Enable 1b = Disable
3	RESERVED	R	0x0		Reserved
2	TS_ADC_DIS	R/W	0x0	Reset by: REG_RESET	TS ADC control 0b = Enable 1b = Disable
1	RESERVED	R	0x0		Reserved
0	RESERVED	R	0x0		Reserved

6.5.27 REG0x2D_IAC_ADC Register (Address = 0x2D) [Reset = 0x0000]

REG0x2D_IAC_ADC is shown in Table 6-32.

Return to the Summary Table.

I2C REG0x2E=[15:8], I2C REG0x2D=[7:0]

Table 6-32 REG0x2D_IAC_ADC Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:0	IAC_ADC	R	0x0		IAC ADC reading with 5mΩ RAC_SNS: Reported as 2s complement POR: 0mA(0h) Format: 2s Complement Range: -20000mA - 20000mA (9E58h-61A8h) Clamped Low Clamped High Bit Step: 0.8mA

6.5.28 REG0x2F_IOUT_ADC Register (Address = 0x2F) [Reset = 0x0000]

REG0x2F_IOUT_ADC is shown in Table 6-33.

Return to the Summary Table.

I2C REG0x30=[15:8], I2C REG0x2F=[7:0]

Table 6-33 REG0x2F_IOUT_ADC Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:0	IOUT_ADC	R	0x0		IOUT ADC reading with 5mΩ RBAT_SNS: Reported as 2s complement POR: 0mA (0h) Format: 2s Complement Range: -20000mA-20000mA (D8F0h-2710h) Clamped Low Clamped High Bit Step: 2mA

6.5.29 REG0x31_VAC_ADC Register (Address = 0x31) [Reset = 0x0000]

REG0x31_VAC_ADC is shown in Table 6-34.

Return to the Summary Table.

I2C REG0x32=[15:8], I2C REG0x31=[7:0]

Table 6-34 REG0x31_VAC_ADC Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:0	VAC_ADC	R	0x0		VAC ADC reading: Reported as unsigned integer POR: 0mV (0h) Format: 2s Complement Range: 0mV-65534mV (0h-7FFFh) Clamped Low Bit Step: 2mV

6.5.30 REG0x33_VOUT_ADC Register (Address = 0x33) [Reset = 0x0000]

REG0x33_VOUT_ADC is shown in Table 6-35.

Return to the Summary Table.

I2C REG0x34=[15:8], I2C REG0x33=[7:0]

Table 6-35 REG0x33_VOUT_ADC Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:0	VOUT_ADC	R	0x0		VOUT ADC reading: Reported as unsigned integer POR: 0mV (0h) Format: 2s Complement Range: 0mV-65534mV (0h-7FFFh) Clamped Low Bit Step: 2mV

6.5.31 REG0x37_TS_ADC Register (Address = 0x37) [Reset = 0x0000]

REG0x37_TS_ADC is shown in Table 6-36.

Return to the Summary Table.

I2C REG0x38=[15:8], I2C REG0x37=[7:0]

Table 6-36 REG0x37_TS_ADC Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
15:0	TS_ADC	R	0x0		TS ADC reading as percentage of REGN: Reported as unsigned integer POR: 0%(0h) Range: 0% - 99.90234375% (0h-3FFh) Clamped High Bit Step: 0.09765625%

6.5.32 REG0x3B_Gate_Driver_Strength_Control Register (Address = 0x3B) [Reset = 0x00]

REG0x3B_Gate_Driver_Strength_Control is shown in Table 6-37.

Return to the Summary Table.

Table 6-37 REG0x3B_Gate_Driver_Strength_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7:6	BOOST_HS_DRV	R/W	0x0	Reset by: REG_RESET	Boost High Side FET Gate Driver Strength: 00b = Fastest 01b = Faster 10b = Slower 11b = Slowest
5:4	BUCK_HS_DRV	R/W	0x0	Reset by: REG_RESET	Buck High Side FET Gate Driver Strength: 00b = Fastest 01b = Faster 10b = Slower 11b = Slowest
3:2	BOOST_LS_DRV	R/W	0x0	Reset by: REG_RESET	Boost Low Side FET Gate Driver Strength: 00b = Fastest 01b = Faster 10b = Slower 11b = Slowest
1:0	BUCK_LS_DRV	R/W	0x0	Reset by: REG_RESET	Buck Low Side FET Gate Driver Strength: 00b = Fastest 01b = Faster 10b = Slower 11b = Slowest

6.5.33 REG0x3C_Gate_Driver_Dead_Time_Control Register (Address = 0x3C) [Reset = 0x00]

REG0x3C_Gate_Driver_Dead_Time_Control is shown in Table 6-38.

Return to the Summary Table.

Table 6-38 REG0x3C_Gate_Driver_Dead_Time_Control Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7:4	RESERVED	R	0x0		Reserved
3:2	BOOST_DEAD_TIME	R/W	0x0	Reset by: REG_RESET	Boost Side FETs Dead Time Control: 00b = 45ns 01b = 75ns 10b = 105ns 11b = 135ns
1:0	BUCK_DEAD_TIME	R/W	0x0	Reset by: REG_RESET	Buck Side FETs Dead Time Control: 00b = 45ns 01b = 75ns 10b = 105ns 11b = 135ns

6.5.34 REG0x3D_Part_Information Register (Address = 0x3D) [Reset = 0x22]

REG0x3D_Part_Information is shown in Table 6-39.

Return to the Summary Table.

Table 6-39 REG0x3D_Part_Information Register Field Descriptions

Bit	Field	Type	Reset	Description
7	RESERVED	R	0x0	Reserved
6:3	PART_NUM	R	0x4	Part Number: 100 - BQ25758
2:0	DEV_REV	R	0x2	Device Revision:

6.5.35 REG0x62_Reverse_Mode_Current Register (Address = 0x62) [Reset = 0x02]

REG0x62_Reverse_Mode_Current is shown in Table 6-40.

Return to the Summary Table.

Table 6-40 REG0x62_Reverse_Mode_Current Register Field Descriptions

Bit	Field	Type	Reset	Notes	Description
7:6	IBAT_REV	R/W	0x0	Reset by: REG_RESET	Reverse mode current limit: 00b = 20A 01b = 15A 10b = 10A 11b = 5A
5:2	RESERVED	R	0x0		Reserved
1	EN_CONV_FAST_TRANSIENT	R/W	0x1	Reset by: REG_RESET	Enable converter fast transient response - 0b = Disable 1b = Enable
0	RESERVED	R	0x0		Reserved

Package Options

Mechanical Data (Package|Pins)

Thermal pad, mechanical data (Package|Pins)

Orderable Information

6.5 BQ25758 Registers

6.5.1 REG0x02_Output_Current_Limit Register (Address = 0x2) [Reset = 0x0640]

6.5.2 REG0x04_Output_Voltage_Limit Register (Address = 0x4) [Reset = 0x03E8]

6.5.3 REG0x06_Input_Current_DPM_Limit Register (Address = 0x6) [Reset = 0x0640]

6.5.4 REG0x08_Input_Voltage_DPM_Limit Register (Address = 0x8) [Reset = 0x0348]

6.5.5 REG0x0A_Reverse_Mode_Input_Current_Limit Register (Address = 0xA) [Reset = 0x0640]

6.5.6 REG0x0C_Reverse_Mode_Input_Voltage_Limit Register (Address = 0xC) [Reset = 0x03E8]

6.5.7 REG0x15_Timer_Control Register (Address = 0x15) [Reset = 0x10]

6.5.8 REG0x17_Converter_Control Register (Address = 0x17) [Reset = 0x09]

6.5.9 REG0x18_Pin_Control Register (Address = 0x18) [Reset = 0xC0]

6.5.10 REG0x19_Power_Path_and_Reverse_Mode_Control Register (Address = 0x19) [Reset = 0x00]

6.5.11 REG0x1B_TS_Threshold_Control Register (Address = 0x1B) [Reset = 0x82]

6.5.12 REG0x1C_TS_Region_Behavior_Control Register (Address = 0x1C) [Reset = 0x00]

6.5.13 REG0x1D_TS_Reverse_Mode_Threshold_Control Register (Address = 0x1D) [Reset = 0x40]

6.5.14 REG0x1E_Bypass_and_Overload_Control Register (Address = 0x1E) [Reset = 0x20]

6.5.15 REG0x21_Status_1 Register (Address = 0x21) [Reset = 0x00]

6.5.16 REG0x22_Status_2 Register (Address = 0x22) [Reset = 0x00]

6.5.17 REG0x23_Status_3 Register (Address = 0x23) [Reset = 0x00]

6.5.18 REG0x24_Fault_Status Register (Address = 0x24) [Reset = 0x00]

6.5.19 REG0x25_Flag_1 Register (Address = 0x25) [Reset = 0x00]

6.5.20 REG0x26_Flag_2 Register (Address = 0x26) [Reset = 0x00]

6.5.21 REG0x27_Fault_Flag Register (Address = 0x27) [Reset = 0x00]

6.5.22 REG0x28_Mask_1 Register (Address = 0x28) [Reset = 0x00]

6.5.23 REG0x29_Mask_2 Register (Address = 0x29) [Reset = 0x00]

6.5.24 REG0x2A_Fault_Mask Register (Address = 0x2A) [Reset = 0x00]

6.5.25 REG0x2B_ADC_Control Register (Address = 0x2B) [Reset = 0x60]

6.5.26 REG0x2C_ADC_Channel_Control Register (Address = 0x2C) [Reset = 0x0A]

6.5.27 REG0x2D_IAC_ADC Register (Address = 0x2D) [Reset = 0x0000]

6.5.28 REG0x2F_IOUT_ADC Register (Address = 0x2F) [Reset = 0x0000]

6.5.29 REG0x31_VAC_ADC Register (Address = 0x31) [Reset = 0x0000]

6.5.30 REG0x33_VOUT_ADC Register (Address = 0x33) [Reset = 0x0000]

6.5.31 REG0x37_TS_ADC Register (Address = 0x37) [Reset = 0x0000]

6.5.32 REG0x3B_Gate_Driver_Strength_Control Register (Address = 0x3B) [Reset = 0x00]

6.5.33 REG0x3C_Gate_Driver_Dead_Time_Control Register (Address = 0x3C) [Reset = 0x00]

6.5.34 REG0x3D_Part_Information Register (Address = 0x3D) [Reset = 0x22]

6.5.35 REG0x62_Reverse_Mode_Current Register (Address = 0x62) [Reset = 0x02]