JAJSHW6A september 2019 – august 2023 BQ21061
PRODUCTION DATA
Table 7-3 below details the BQ21061 behavior when a fault condition occurs.
FAULT / FLAG | DESCRIPTION | INTERRUPT TRIGGER BASED ON STATUS BIT CHANGE | CHARGER BEHAVIOR | CHARGER SAFETY TIMER | PMID BEHAVIOR |
---|---|---|---|---|---|
CHRG_CV_FLAG | Set when charger enters Constant Voltage operation | Rising Edge | Enabled | No effect | IN powered if VIN is valid |
CHARGE_DONE_FLAG | Set when charger reaches termination | Rising Edge | Paused- Charging resumes with VIN or CE toggle or when VRCH is reached | Reset | IN powered if VIN is valid |
IINLIM_ACTIVE_FLAG | Set when Input Current Limit loop is active | Rising Edge | Enabled. Reduced charge current. | Doubled if option is enabled | IN powered VIN powered unless supplement mode condition is met. |
VDPPM_ACTIVE_FLAG | Set when DPPM loop is active | Rising Edge | Enabled. Reduced charge current. | Doubled if option is enabled | VIN powered unless supplement mode condition is met. |
VINDPM_ACTIVE_FLAG | Set when VINDPM loop is active | Rising Edge | Enabled. Reduced charge current. | Doubled if option is enabled | VIN powered unless supplement mode condition is met. |
THERMREG_ACTIVE | Set when Thermal Charge Current Foldback (Thermal Regulation) loop is active | Rising Edge | Enabled. Reduced charge current. | Doubled if option is enabled | VIN powered unless supplement mode condition is met. |
VIN_PGOOD_FLAG | Set when VIN changes PGOOD status | Rising and Falling Edge | If VIN_PGOOD_STAT is low, charging is disabled. | Reset | VIN powered (if VIN_PGOOD_STAT=1) unless PMID_MODE is not 00. |
VIN_OVP_FAULT_FLAG | Set when VIN > VOVP | Rising Edge | Charging is paused until condition disappears | Reset | BAT powered |
BAT_OCP_FAULT_FLAG | Set when IBAT > IBATOCP | Rising Edge | Disabled (BAT only condition) | N/A | Disconnect BAT |
BAT_UVLO_FAULT_FLAG | Set when VBAT < VBATUVLO | Rising Edge | Enabled | No effect | IN powered of VIN is valid |
TS_COLD_FLAG | Set when VTS > VTS_COLD | Rising Edge | Charging paused until condition is cleared | Paused | IN powered of VIN is valid |
TS_COOL_FLAG | Set when VTS_COLD > VTS > VTS_COOL | Rising Edge | Enabled. Reduced charge current. | Doubled if option is enabled | IN powered of VIN is valid |
TS_WARM_FLAG | Set when VTS_HOT < VTS < VTS_WARM | Rising Edge | Enabled. Reduce battery regulation voltage. | No effect | IN powered of VIN is valid |
TS_HOT_FLAG | Set when VTS < VHOT | Rising Edge | Charging paused until condition is cleared | Paused | IN powered of VIN is valid |
TS_OPEN_FLAG | Set when VTS > VTS_OPEN | Rising Edge | Charging is paused until condition disappears | Paused | N/A |
WD_FAULT_FLAG | Set when I2C watchdog timer expires | Rising Edge | Enabled | N/A | N/A |
SAFETY_TMR_FAULT_FLAG | Set when safety Timer expires. Cleared after VIN or CE toggle | Rising Edge | Disabled until VIN or CE toggle | Reset after flag is cleared | IN powered of VIN is valid |
LS_LDO_OCP_FAULT_FLAG | Set when LDO output current exceeds OCP condition | Rising Edge | N/A | N/A | N/A |
MRWAKE1_TIMEOUT_FLAG | Set when MR is low for at least tWAKE1 | Rising Edge | N/A | N/A | N/A |
MRWAKE2_TIMEOUT_FLAG | Set when MR is low for at least tWAKE2 | Rising Edge | N/A | N/A | N/A |
MRRESET_WARN_FLAG | Set when MR is low for at least tRESETWARN | Rising Edge | N/A | N/A | N/A |
TSHUT | No flag. Die temperature exceeds thermal shutdown threshold is reached | N/A | Disabled | Disabled | Disabled |