ZHCSGE0B June 2017 – January 2019 TPS53681
PRODUCTION DATA.
The STATUS_VOUT command returns one byte of information relating to the status of the converter's output voltage related faults.
The STATUS_VOUT command must be accessed through Read Byte/Write Byte transactions. STATUS_VOUT is a paged register. In order to access STATUS_VOUT command for channel A, PAGE must be set to 00h. In order to access STATUS_VOUT register for channel B, PAGE must be set to 01h. If PAGE is set FFh, the device return value will reflect the status of Channel A.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RW | 0 | 0 | RW | RW | 0 | 0 | 0 |
VOUT_OVF | VOUT_OVW | VOUT_UVW | VOUT_UVF | VOUT_MIN_MAX | TON_MAX | TOFF_MAX | VOUT_TRACK |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7 | VOUT_OVF | RW | Current
Status |
Output Over-Voltage Fault
0: Latched flag indicating no VOUT OV fault has occurred. 1: Latched flag indicating a VOUT OV fault has occurred. |
6 | VOUT_OVW | R | 0 | Not supported and always set to 0. |
5 | VOUT_UVW | R | 0 | Not supported and always set to 0. |
4 | VOUT_UVF | RW | Current
Status |
Output Under-Voltage Fault
0: Latched flag indicating no VOUT UV fault has occurred. 1: Latched flag indicating a VOUT UV fault has occurred. |
3 | VOUT_MIN_MAX | RW | Current
Status |
Output Voltage Max/Min Exceeded Warning
0: Latched flag indicating no VOUT_MAX/VOUT_MIN warning has occurred. 1: Latched flag indicating that an attempt has been made to set the output voltage to a value higher than allowed by the VOUT_MAX/VOUT_MIN command. |
2 | TON_MAX | R | 0 | Not supported and always set to 0. |
1 | TOFF_MAX | R | 0 | Not supported and always set to 0. |
0 | VOUT_TRACK | R | 0 | Not supported and always set to 0. |
Per the description in the PMBus 1.3 specification, part II, TPS53681 does support clearing of status bits by writing to STATUS registers. Writing a 1 to any supported bit in this register will attempt to clear it as a fault condition.