ZHCSME3 November 2020 TPS27SA08
PRODUCTION DATA
The following faults will be communicated via the SNS and ST outputs:
Open-load / Short-to-supply are not indicated while the switch is enabled (though these conditions can be detected via the sense current). Hence, if there is a fault indication corresponding to an enabled channel, then it must be either switch shutdown or active current limiting.
The SNS pin will only indicate the fault if the SELx = 00. Switch shutdown fault indication will occur on the ST pin regardless of the SELx pins; however, OL/STB fault indication is only available when the SELx = 00.
| INPUTS | OUTPUTS | ||||
|---|---|---|---|---|---|
| DIA_EN | SEL1 | SEL2 | FAULT DETECT(1) | SNS | ST |
| 0 | X | X | 0 | High-z | High-z |
| 0 | X | X | 1 | High-z | Pull low |
| 1 | 0 | 0 | 0 | Load current | High-z |
| 1 | 0 | 1 | 0 | Not Used | Not Used |
| 1 | 1 | 0 | 0 | Device temperature | High-z |
| 1 | 1 | 1 | 0 | Supply voltage | High-z |
| 1 | 0 | 0 | 1 | ISNSFH | Pull low |
| 1 | 0 | 1 | 1 | Not Used | Not Used |
| 1 | 1 | 0 | 1 | Device temperature | Pull low |
| 1 | 1 | 1 | 1 | Supply voltage | Pull low |