ZHCSR16 September 2022 TPS544C26
ADVANCE INFORMATION
| CMD Address | 51h |
| Write Transaction: | Write Byte |
| Read Transaction: | Read Byte |
| Format: | Unsigned Binary (1 byte) |
| NVM Backup: | EEPROM |
| Updates: | On-the-fly |
The OT_WARN_LIMIT command sets the temperature of the unit, at which, it indicates an overtemperature warning alarm. The unit of this command is degrees Celsius. This feature utilizes a digital comparator that compares the output of the IC TEMPERATURE telemetry to the warning threshold selected in this register.
Upon triggering the overtemperature fault, the device sets the OTW_PROG bit in the (7Dh) STATUS_TEMPERATURE register. Due to the lack of an I2C alert pin, the TPS544C26 device does not have a way to notify the host.
Return to Supported I2C and Default Values.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R | R | R | R | R | R/W | R/W | R/W |
| Reserved | SEL_OTW | ||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 7:3 | Reserved | R | 00000b | Not used and always set to 0. |
| 2:0 | SEL_OTW | R/W | NVM | These bits select the OT warning threshold which is compared with
the output of the IC TEMP telemetry. 000b: OTW threshold = 85 °C 001b: OTW threshold = 95 °C 010b: OTW threshold = 100 °C 011b: OTW threshold = 105 °C 100b: OTW threshold = 110 °C 101b: OTW threshold = 115 °C 110b: OTW threshold = 125 °C 111b: OTW threshold = 135 °C |