JAJSEU4D December 2015 – December 2019 TPS4H160-Q1
PRODUCTION DATA.
When a channel is off, if a load is connected, the output is pulled down to GND. But if an open load occurs, the output voltage is close to the supply voltage (VVS – VOUTx < V(ol,off)), and the fault is reported out.
There is always a leakage current I(ol,off) present on the output due to internal logic control path or external humidity, corrosion, and so forth. Thus, TI recommends an external pullup resistor to offset the leakage current when an open load is detected. The recommended pullup resistance is 20 kΩ.