SLUSAQ4G October 2011 – September 2022 TPS40422
PRODUCTION DATA
STATUS_BYTE is a paged register. The STATUS_BYTE command returns one byte of information with a summary of the most critical device faults. Three fault bits are flagged in this particular command: output overvoltage, output overcurrent, and over-temperature. The STATUS_BYTE reports communication faults in the CML bit. Other communication faults set the NONE OF THE ABOVE bit.
| COMMAND | STATUS_BYTE | |||||||
|---|---|---|---|---|---|---|---|---|
| Format | Unsigned binary | |||||||
| Bit Position | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Access | r | r | r | r | r | r | r | r |
| Function | X | OFF | VOUT_OV | IOUT_OC | VIN_UV | TEMPERATURE | CML | NONE OF THE ABOVE |
| Default Value | 0 | x | 0 | 0 | 0 | 0 | 0 | 0 |
A "1" in any of these bit positions indicates that:
| OFF: | ||
| The device is not providing power to the output, regardless of the reason. In TPS4022 device , this flag means that the converter is not enabled. | ||
| VOUT_OV: | ||
| An output overvoltage fault has occurred. | ||
| IOUT_OC: | ||
| An output over current fault has occurred. | ||
| VIN_UV: | ||
| An input undervoltage fault has occurred. | ||
| TEMPERATURE: | ||
| A temperature fault or warning has occurred. | ||
| CML: | ||
| A Communications, Memory or Logic fault has occurred. | ||
| NONE OF THE ABOVE: | ||
| A fault or warning not listed in bit1 through bits 1-7 has occurred, for example an undervoltage condition or an over current warning condition | ||