ZHCSJT6B may 2019 – february 2023 TPS1HB16-Q1
PRODUCTION DATA
The following faults will be communicated through the SNS output:
Open-load and Short-to-battery are not indicated while the switch is enabled, although these conditions can still be detected through the sense current. Hence, if there is a fault indication while the channel is enabled, then it must be either due to an overcurrent or overtemperature event.
The SNS pin will only indicate the fault if the SEL1 pins is low. When the SEL1 pin is high and the device is set to measure temperature, the pin will be measuring the channel FET temperature.
| INPUTS | OUTPUTS | ||
|---|---|---|---|
| DIA_EN | SEL1 | FAULT DETECT(1) | SNS |
| 0 | X | X | High-z |
| 1 | 0 | 0 | Output current |
| 1 | 1 | 0 | Device temperature |
| 1 | 0 | 1 | ISNSFH |
| 1 | 1 | 1 | Device temperature |
For device version F, the SEL1 pin has no functionality so the device cannot output a temperature sense current. In this case, SEL1 must be connected to ground through an RPROT resistor and the SNS behavior will follow the table below.
| INPUTS | OUTPUTS | |||
|---|---|---|---|---|
| DIA_EN | SEL1 | FAULT DETECT(1) | SNS | FLT(2) |
| 0 | X | X | High-z | High-z |
| 1 | X | 0 | Output current | High-z |
| 1 | X | 1 | ISNSFH | Open-drain |