ZHCSIO9A August 2018 – June 2021 TPSM831D31
PRODUCTION DATA
The IOUT_OC_FAULT_RESPONSE instructs the device on what action to take in response to an output over-current fault. The IOUT_OC_FAULT_RESPONSE command must be accessed through Read Byte/Write Byte transactions. The IOUT_OC_FAULT_RESPONSE command is shared between Channel A and Channel B. All transactions to this command affects both channels regardless of the PAGE command.
IOUT_OC_WARN_LIMIT maximum default value is 180A for VOUTA and 60A for VOUTB. If an application maximum load current is less than 180A, IOUT_OC_WARN_LIMIT needs to change as the default maximum load current value is restored each time after power-on or RESTORE_DEFAULT_ALL operation.
Upon triggering the over-current fault, the device is latched off, and:
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| IO_OC_RESP | |||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 7:0 | IO_OC_RESP | RW | NVM | C0h: Latch-off and do not restart. To clear a shutdown event due to a fault event, the user must toggle the AVR_EN/BEN pin and/or the ON bit in OPERATION, per the settings in ON_OFF_CONFIG, or power cycle the bias power to the V3P3 pin of the controller device. FAh: Shutdown and restart. The controller will shutdown the channel on which the fault occurred, and attempt to restart 20ms later. This will occur continuously until the condition causing the fault has disappeared, or the controller has been disabled. |