ZHCSQY3 march 2023 TPS546D24S
PRODUCTION DATA
| CMD Address | 58h |
| Write Transaction: | Write Word |
| Read Transaction: | Read Word |
| Format: | SLINEAR11 per CAPABILITY |
| Phased: | Yes |
| NVM Back-up: | EEPROM |
| Updates: | On-the-fly |
The (58h) VIN_UV_WARN_LIMIT command sets the value of the PVIN pin voltage, in volts, that causes the input voltage detector to indicate an input undervoltage warning.
The (58h) VIN_UV_WARN_LIMIT is a phase command, each phase within a stack will independently detect and report input undervoltage warnings.
In response to an input undervoltage warning condition, the TPS546D24S takes the following action:
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| VINUVW_EXP | VINUVW_MAN | ||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| VINUVW_MAN | |||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 15:11 | VINUVW_ EXP | RW | 11110b | Linear format two’s complement exponent |
| 10:0 | VINUVW_ MAN | RW | NVM | Linear format two’s complement mantissa Supported values 2.5 V to 15.5 V |
Attempts to write (58h) VIN_UV_WARN_LIMIT to any value outside those specified as valid will be considered invalid/unsupported data and cause the TPS546D24S to respond by flagging the appropriate status bits and notifying the host according to the PMBus 1.3.1 Part II specification section 10.9.3.