ZHCS384H November 2011 – July 2022 BQ24160 , BQ24160A , BQ24161 , BQ24161B , BQ24163 , BQ24168
PRODUCTION DATA
The STAT output is used to indicate operation conditions for BQ2416xx. STAT is pulled low during charging when EN_STAT bit in the control register (0x02h) is set to “1”. When charge is complete or disabled, STAT is high impedance. When a fault occurs, a 128-µs pulse (interrupt) is sent out to notify the host. The status of STAT during different operation conditions is summarized in Table 8-1. STAT drives an LED for visual indication or can be connected to the logic rail for host communication. The EN_STAT bit in the control register (00H) is used to enable/disable the charge status for STAT. The interrupt pulses are unaffected by EN_STAT and will always be shown. The INT output is identical to STAT and is used to interface with a low voltage host processor.
| CHARGE STATE | STAT AND INT BEHAVIOR |
|---|---|
| Charge in progress and EN_STAT=1 | Low |
| Other normal conditions | High-Impedance |
| Status Changes: Supply Status Change (plug in or removal), safety timer fault, watchdog expiration, sleep mode, battery temperature fault (TS), battery fault (OVP or absent), thermal shutdown | 128-µs pulse, then High Impedance |