JAJSQT1 July 2024 TPS546E25
ADVANCE INFORMATION
| CMD Address | 2Ah |
| Write Transaction: | Write Word (if external feedback resistor is selected via MSEL1 pinstrap) |
| Read Transaction: | Read Word |
| Format: | LINEAR11 |
| Updates: | On-the-fly when writable |
| NVM Back-up: | EEPROM or VSEL resistor |
VOUT_SCALE_MONITOR indicates how VOUT scaling should be done if the external feedback resistor option is selected via MSEL1 pinstrap. VOUT_SCALE_MONITOR is set to VOUT_SCALE_LOOP when an internal feedback resistor is used and this command is then read only. If an external feedback resistor divider is selected, the user must select a value for VOUT_SCAL_MONITOR, which will then be used internall in place of the VOUT_SCALE_LOOP value.
Return to Supported PMBus Commands.
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| R | R | R | R | R | R | R | R |
| EXPONENT | VOUT_SCALE_MONITOR | ||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R | R | R | R | R/W | R/W | R/W | R/W |
| VOUT_SCALE_MONITOR | |||||||
| LEGEND: R/W = Read/Write; R = Read-only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 15:11 | EXPONENT | R | 1 1101b | Linear format two’s complement exponent. Fixed exponent of -3 resulting in 0.125 LSB. |
| 10:4 | VOUT_SCALE_MONITOR | R | 0 | Not used and always set to 0. |
| 3:0 |
VOUT_SCALE_MONITOR |
R/W | NVM or VSEL resistor | Linear format two’s complement mantissa. If the OVRD_VSEL bit in Section 7.70 is set to 0, this value is set by the resistance detected from the VSEL pin to ground. To program this to a different value through PMBus, the OVRD_VSEL bit must be set to 1 and stored to NVM, then |