BQ25713 datasheet(49/111 Pages) TI2

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8.6.2 ChargeCurrent Register (I2C address = 03/02h) [reset = 0000h]

To set the charge current, write 16-bit ChargeCurrent() command (REG0x03/02h()) using the data format listed

Figure 8-17.

With 5-mΩ sense resistor, the charger provides charge current range of 0 A to 16.256 A, with a 128-mA step

resolution. With 10-mΩ sense resistor, the charger provides charge current range of 0 A to 8.128 A, with a

64-mA step resolution.

Upon POR, ChargeCurrent() is 0 A. Below scenarios will also reset Charge current to zero:

• CELL_BATPRESZ going LOW (battery removal).

• STAT_AC is not valid(Adapter removal).

• RESET_REG is asserted and reset all registers.

• Charge voltage is written to be 0 V.

• Watch dog event is triggered.

Charge current is not reset in force converter latch off fault (REG0x20[2]), and ACOC/TSHUT/SYSOVP/ACOV/

VSYS_UVP/BATOVP/BATOC faults.

Figure 8-17. ChargeCurrent Register (I2C address = 03/02h) [reset = 0000h]

Reserved

Charge Current,

bit 6

Charge Current,

bit 5

Charge Current,

bit 4

Charge Current,

bit 3

Charge Current,

bit 2

R/W

Charge Current,

bit 1

Charge Current,

bit 0

Reserved

R/W

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

Table 8-10. Charge Current Register with 5-mΩ Sense Resistor (I2C address = 03h) Field Descriptions

BIT

FIELD

TYPE

RESET

DESCRIPTION

7-5

Reserved

R/W

000b

Not used. 1 = invalid write.

Charge Current, bit 6

R/W

0 = Adds 0 mA of charger current.

1 = Adds 8192 mA of charger current.

Charge Current, bit 5

R/W

0 = Adds 0 mA of charger current.

1 = Adds 4096 mA of charger current.

Charge Current, bit 4

R/W

0 = Adds 0 mA of charger current.

1 = Adds 2048 mA of charger current.

Charge Current, bit 3

R/W

0 = Adds 0 mA of charger current.

1 = Adds 1024 mA of charger current.

Charge Current, bit 2

R/W

0 = Adds 0 mA of charger current.

1 = Adds 512 mA of charger current.

Table 8-11. Charge Current Register with 5-mΩ Sense Resistor (I2C address = 02h) Field Descriptions

BIT

FIELD

TYPE

RESET

DESCRIPTION

Charge Current, bit 1

R/W

0 = Adds 0 mA of charger current.

1 = Adds 256 mA of charger current.

Charge Current, bit 0

R/W

0 = Adds 0 mA of charger current.

1 = Adds 128 mA of charger current.

5-0

Reserved

R/W

000000b

Not used. Value Ignored.

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BQ25730

SLUSE65A – FEBRUARY 2021 – REVISED JANUARY 2024

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