The VIN_ON command sets the value of the input voltage, in Volts, at which the unit should start power conversion. This command has two data bytes encoded in linear data format, and must be accessed through Read Word/Write Word transactions. The VIN_ON command is shared between Channel A and Channel B. All transactions to this command will affect both channels regardless of the PAGE command. The supported range for VIN_ON is from 4.0 V volts to 11.25 Volts.
VIN_ON| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| R | R | R | R | R | RW | RW | RW |
| VINON_EXP | VINON_MAN |
|
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| VINON_MAN |
| LEGEND: R/W = Read/Write; R = Read only |
Table 7-39 VIN_ON Register Field Descriptions| Bit | Field | Type | Reset | Description |
|---|
| 15:11 | VINON_EXP | R | 11110b | Linear two's complement exponent, –2. LSB = 0.25
V |
| 10:0 | VINON_MAN | RW | NVM | Linear two's complement mantissa. See the table of
acceptable values below. |
Table 7-40 Acceptable Values of VIN_ON| VIN_ON (hex) | Turn-On Voltage (V) |
|---|
| F01Dh | 7.25 |
| F021h | 8.25 |
| F025h | 9.25 |
| F029h | 10.25 |
| F02Dh | 11.25 |
Table 7-41 VIN Undervoltage Fault Limits| VIN_UV_FAULT_LIMIT (hex) | Fault Threshold (V) |
|---|
| F80Fh | 7.5 |
| F811h | 8.5 |
| F813h | 9.5 |
| F815h | 10.5 |
| F817h | 11.5 |