ZHCSQI2A November 2022 – January 2024 TPS92620-Q1
PRODUCTION DATA
| FAULT BUS STATUS | FAULT TYPE | DETECTION MECHANISM | CONTROL INPUT | DEGLITCH TIME | FAULT BUS | FAULT HANDLING ROUTINE | FAULT RECOVERY |
|---|---|---|---|---|---|---|---|
| FAULT = H | Open circuit or short-to-supply | V(IN) – V(OUT) < V(OPEN_th_rising) | EN = H and PWMx = H | t(OPEN_deg) | Constant-current pulldown | Device turns failed output off and retries with constant current I(retry), ignoring the PWM input. | Auto recovery |
| Short-to-ground | V(OUT) < V(SG_th_falling) OR V(RES) < V(SG_th_falling) | EN = H and PWMx = H | t(SG_deg) | Constant-current pulldown | Device turns failed output off and retries with constant current I(retry), ignoring the PWM input. | Auto recovery | |
| Overtemperature | TJ > T(TSD) | EN = H | t(TSD_deg) | Constant-current pulldown | Device turns all output channels off. | Auto recovery | |
| FAULT = L | Fault is detected | Device turns all remained channels off and keeps retry on the failed channels. After the Fault pin is released, all channels are turned on after t(FAULT_recovery) time. | |||||
| No fault is detected | Device turns all output channels off. | ||||||
| FAULT BUS STATUS | FAULT TYPE | DETECTION MECHANISM | CURRENT OUTPUT | DEGLITCH TIME | FAULT BUS | FAULT HANDLING ROUTINE | FAULT RECOVERY |
|---|---|---|---|---|---|---|---|
| FAULT = H | Open circuit or short-to-supply | Ignored | |||||
| Short-to-ground | V(OUT) < V(SG_th_falling) OR V(OUT) < V(SG_th_falling) | EN = H and PWMx = H | t(SG_deg) | Constant-current pulldown | Device turns output off and retries with constant current I(retry), ignoring the PWM input. | Auto recovery | |
| Overtemperature | TJ > T(TSD) | EN = H | t(TSD_deg) | Constant-current pulldown | Device turns all output channels off. | Auto recovery | |
| FAULT = L | Fault is detected | Device turns all remained channels off and keeps retry on the failed channels. After the Fault pin is released, all channels are turned on after t(FAULT_recovery) time. | |||||
| No fault is detected | Device turns all output channels off. | ||||||