SLVSH95 July 2024 TPS546C25
ADVANCE INFORMATION
| CMD Address | 39h |
| Write Transaction: | Write Byte |
| Read Transaction: | Read Byte |
| Format: | LINEAR11 |
| NVM Backup: | EEPROM |
| Updates: | On-the-fly |
The IOUT_CAL_OFFSET is used to add or subtract (if negative) an offset current before reporting in READ_IOUT, for user calibration purposes. The minimum READ_IOUT is clamped to 0 even if negative offset is selected in IOUT_CAL_OFFSET and results in a negative number.
Return to Supported PMBus Commands.
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| R | R | R | R | R | R | R | R |
| EXPONENT | IOUT_CAL_OFFSET_SIG_EXT | ||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R | R | R | R | R/W | R/W | R/W | R/W |
| IOUT_CAL_OFFSET_SIG_EXT | IOUT_CAL_OFFSET_MAN | ||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Access | Reset | Description |
|---|---|---|---|---|
| 15:11 | EXPONENT | R | 1 1110 | Linear format two’s complement exponent. Fixed exponent of -2 resulting in 0.25A LSB. |
| 10:4 | IOUT_CAL_OFFSET_SIG_EXT | R | 000 0000b if bit 3 is 0 or 111 1111b if bit 3 is 1 | These bits are used to extend the sign of bit 3 in IOUT_CAL_OFFSET_MAN through the rest of the mantissa. |
| 3:0 | IOUT_CAL_OFFSET_MAN | RW | NVM |
The manitssa of IOUT_CAL_OFFSET_MAN Maximum +7d (0111b) is + 1.75A offset Minimum -8d (1000b) is -2A offset |