ZHCSR16 September 2022 TPS544C26
ADVANCE INFORMATION
| CMD Address | 36h |
| Write Transaction: | Write Byte |
| Read Transaction: | Read Byte |
| Format: | Unsigned Binary (1 byte) |
| NVM Backup: | EEPROM |
| Updates: | On-the-fly |
The VIN_OFF command sets the value of the PVIN input voltage, in Volts, at which the unit must stop power conversion. If the power conversion enable conditions as defined by (02h) ON_OFF_CONFIG are met and PVIN is less than the selected VIN_OFF threshold, the power conversion turns off and the PVIN_UVF bit in (7Ch) STATUS_INPUT is set.
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 | PVIN_OFF | ||||||
| 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 | PVIN_OFF | R/W | NVM |
000b: OFF threshold is PVIN = 4.2 V 001b: OFF threshold is PVIN = 9.5 V 010b: OFF threshold is PVIN = 8.5 V 011b: OFF threshold is PVIN = 7.5 V 100b: OFF threshold is PVIN = 6.5 V 101b: OFF threshold is PVIN = 5.5 V 110b: OFF threshold is PVIN = 4.2 V 111b: OFF threshold is determined by both PVIN and VDRV conditions. When this option is selected, either PVIN ≤ 2.3 V or VDRV ≤ 3.4 V disables the power conversion. |
While it is possible to set (36h) VIN_OFF threshold greater than (35h) VIN_ON threshold, it is not advisable and can produce rapid enabling and disabling of conversion and undesirable operation. Please set (35h) VIN_ON threshold always greater than (36h) VIN_OFF threshold.