JAJSHA8A February 2018 – April 2019 TPS2HB50-Q1
ADVANCE INFORMATION for pre-production products; subject to change without notice.
The following faults will be communicated through the SNS output:
Open-load / 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 corresponding to an enabled channel, then it must be either due to an over-current or over-temperature event.
The SNS pin will only indicate the fault if the SELx pins are selecting the relevant channel. When the device is set to measure temperature, the pin will be measuring the temperature of whichever channel is at a higher temperature.
INPUTS | OUTPUTS | |||
---|---|---|---|---|
DIA_EN | SEL1 | SEL2 | FAULT DETECT(1) | SNS |
0 | X | X | X | High-Z |
1 | 0 | 0 | 0 | CH1 current |
1 | 0 | 1 | 0 | CH2 current |
1 | 1 | 0 | 0 | Device temperature |
1 | 1 | 1 | 0 | N/A |
1 | 0 | 0 | 1 | ISNSFH |
1 | 0 | 1 | 1 | ISNSFH |
1 | 1 | 0 | 1 | Device temperature |
1 | 1 | 1 | 1 | N/A |