BQ25708 datasheet(41/94 Pages) TI2

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Table 9-8. ChargeOption1 Register (I2C address = 30h) Field Descriptions

I2C

30h

FIELD

TYPE

RESET

DESCRIPTION

CMP_REF

R/W

Independent Comparator Internal Reference.

0b: 2.3 V <default at POR>

1b: 1.2 V

CMP_POL

R/W

Independent Comparator Output Polarity

0b: When CMPIN is above internal threshold, CMPOUT is LOW (internal

hysteresis) <default at POR>

1b: When CMPIN is below internal threshold, CMPOUT is LOW (external

hysteresis)

5-4

CMP_DEG

R/W

01b

Independent Comparator Deglitch Time, only applied to the falling edge of

CMPOUT (HIGH → LOW).

00b: Independent comparator is disabled

01b: Independent comparator is enabled with output deglitch time 1 µs <default

at POR>

10b: Independent comparator is enabled with output deglitch time of 2 ms

11b: Independent comparator is enabled with output deglitch time of 5 sec

FORCE_LATCHOFF

R/W

Force Power Path Off

When independent comparator triggers, charger turns off Q1 and Q4 (same as

disable converter) so that the system is disconnected from the input source. At

the same time, CHRG_OK signal goes to LOW to notify the system.

0b: Disable this function <default at POR>

1b: Enable this function

EN_PTM

R/W

PTM enable register bit

0b: disable PTM. <default at POR>

1b: enable PTM.

EN_SHIP_DCHG

R/W

Discharge SRN for Shipping Mode

When this bit is 1, discharge SRN pin down below 3.8 V in 140 ms. When 140 ms

is over, this bit is reset to 0.

0b: Disable shipping mode <default at POR>

1b: Enable shipping mode

AUTO_WAKEUP_EN

R/W

Auto Wakeup Enable

When this bit is HIGH, if the battery is below minimum system voltage

(REG0x0D/0C()), the device will automatically enable 128 mA charging current

for 30 mins. When the battery is charged up above minimum system voltage,

charge will terminate and the bit is reset to LOW.

0b: Disable

1b: Enable <default at POR>

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BQ25713, BQ25713B

SLUSD83C – JUNE 2018 – REVISED MAY 2023

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