SLVSD02E March 2015 – August 2021 TPS65982
The TPS65982 has an integrated, bi-directional high-voltage switch that is rated for up to 3 Amps of current. The TPS65982 is capable of sourcing or sinking high-voltage power through an internal switch path designed to support USB-PD power up to 20 V at 3 A of current. VBUS and PP_HV are both rated for up to 22 V as determined by Recommended Operating Conditions, and operate down to 0 V as determined by Absolute Maximum Ratings. In addition, VBUS is tolerant to voltages up to 22 V even when PP_HV is at 0 V. Similarly, PP_HV is tolerant up to 22 V while VBUS is at 0 V. The switch structure is designed to tolerate a constant operating voltage differential at either of these conditions. Figure 9-11 shows a simplified circuit for the switch from PP_HV to VBUS.