The TPSI3050 and TPSI3050S have an integrated gate driver that provides a nominal 10-V gate voltage with 1.5/3.0-A peak source and sink current sufficient for driving many power transistors or Silicon-Controlled Rectifiers (SCR). When driving external power transistors, TI recommends bypass capacitors (C_DIV = C_DIV1 = C_DIV2) from VDDH to VDDM and VDDM to VSSS of 20 times the equivalent gate capacitance.

The gate driver also includes an active clamp keep off circuit. This feature helps to keep the driver output, VDRV, low should power be lost on the secondary supply rails e.g. power loss on the VDDP supply prevents power transfer. Should power be lost, the active clamp keep off circuit will attempt to clamp the voltage of VDRV to under 2 V relative to VSSS.