BQ25708 datasheet(28/94 Pages) TI2

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is asserted if the system power is too high. Once CPU receives PROCHOT pulse from charger, it slows down to

reduce system power. The events monitored by the processor hot function includes:

• ICRIT: adapter peak current, as 110% of ILIM2

• INOM: adapter average current (110% of input current limit)

• IDCHG: battery discharge current

• VSYS: system voltage on VSYS

• Adapter Removal: upon adapter removal (CHRG_OK pin HIGH to LOW)

• Battery Removal: upon battery removal (CELL_BATPRESZ pin goes LOW)

• CMPOUT: Independent comparator output (CMPOUT pin HIGH to LOW)

• VDPM: VBUS lower than 80%/90%/100% of VINDPM threshold.

• EXIT_VAP: Every time when the charger exits VAP mode.

The threshold of ICRIT, IDCHG, VSYS or VDPM, and the deglitch time of ICRIT, INOM, IDCHG or CMPOUT are

programmable through I2C. Except the PROCHOT_EXIT_VAP is always enabled, the other triggering events

can be individually enabled in REG0x38[7:0]. When any enabled event in PROCHOT profile is triggered,

PROCHOT is asserted low for a single pulse with minimal width programmable in REG0x23[5:4]. At the end of

the single pulse, if the PROCHOT event is still active, the pulse gets extended until the event is removed.

If the PROCHOT pulse extension mode is enabled by setting REG0x23[6] = 1, the PROCHOT pin will be kept as

low until host writes REG0x23[3]21[11] = 0, even if the triggering event has been removed.

If the PROCHOT_VDPM or PROCHOT_EXIT_VAP is triggered, PROCHOT pin will always stay low until the

host clears it, no matter the PROCHOT is in one pulse mod or in extended mode.

BQ25713, BQ25713B

SLUSD83C – JUNE 2018 – REVISED MAY 2023

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BQ25708 Folha de dados(PDF) 28 Page - Texas Instruments