ZHCSR16 September 2022 TPS544C26
ADVANCE INFORMATION
| CMD Address | 45h |
| Write Transaction: | Write Byte |
| Read Transaction: | Read Byte |
| Format: | Unsigned Binary (1 byte) |
| NVM Backup: | EEPROM |
| Updates: | On-the-fly |
The VOUT_UV_FAULT_RESPONSE command instructs the device on what action to take in response to an output undervoltage fault. Upon triggering the tracking undervoltage fault (a.k.a VOUT Tracking UVF), the TPS544C26 device responds according to the RESTART bit in this register, and the following actions are taken:
Return to Supported I2C and Default Values.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R | R | R | R | R/W | R | R/W | R/W |
| Reserved | RESTART | Reserved | RESPONSE_DELAY | ||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 7:4 | Reserved | R | 0000b | Not used and always set to 0. |
| 3 | RESTART | R/W | NVM | VOUT Tracking UVF response selection 0b: Latch-off after the fault. A VCC power cycle or EN toggle can restart the power conversion. 1b: Automatically restart after a delay of 56 ms, without limitation on the number of restart attempts. |
| 2 | Reserved | R | 0b | Not used and always set to 0. |
| 1:0 | RESPONSE_DELAY | R/W | NVM | VOUT Tracking UVF Response Delay selection 00b: UVF Response Delay = 2 μs 00b: UVF Response Delay = 16 μs 00b: UVF Response Delay = 64 μs 00b: UVF Response Delay = 256 μs |