SLVAEX0 October 2020 TPS1H000-Q1 , TPS1H100-Q1 , TPS1H200A-Q1 , TPS1HA08-Q1 , TPS1HB16-Q1 , TPS1HB50-Q1 , TPS2HB16-Q1 , TPS2HB50-Q1 , TPS4H000-Q1 , TPS4H160-Q1
For devices that have multiple SEL pins such as the TPS1HA08, the device is able to be configured in three ways: device temperature, load current, or supply voltage. As with the single SEL pin devices, device temperature allows for measuring the internal junction temperature and the load current measurement allows for a proportionate voltage signal that reflects the load current. An additional setting allows for monitoring the supply voltage that is supplying power to the output, which is helpful in applications where a battery is involved such as in the automotive industry. For devices with multiple channels, additional SEL pins are used to select which channel to monitor.
Table 2-4 shows the different diagnostics that are used in the SELx pins on the TPS1HA08-Q1 and how to configure them. Table 2-5 shows the configurations that available on the SELx pins on the TPS2HB16 and the settings associated with them.
SEL1 State | SEL2 State | SNS Pin Output |
---|---|---|
Low | Low | Load Current |
Low | High | No Diagnostics |
High | Low | Device Temperature |
High | High | Supply Voltage |
SEL1 State | SEL2 State | SNS Pin Output |
---|---|---|
Low | Low | Channel 1 Load Current |
Low | High | Channel 2 Load Current |
High | Low | Device Temperature |
High | High | N/A |