SLVUC79A april 2022 – june 2023 TPSI2140-Q1
The TPSI2140-Q1 is an isolated solid state relay designed for high voltage automotive and industrial applications such as battery management systems, EV/HEV onboard chargers, mechanical relay replacement, DC link pre-charging, and more. The TPSI2140-Q1 seamlessly replaces relays without need for a secondary side supply while leveraging unique isolation technology integrated in a compact SOIC package. The entire primary side of the device requires only 9 mA of input current, enabling the user to drive the VDD and EN pins from a single microcontroller GPIO and eliminating the need for an external low side switch used in Photomos solutions. The secondary side consists of back-to-back MOSFETs with a standoff voltage of +/– 1.2 kV from S1 to S2. The TPSI2140-Q1 MOSFETs' avalanche robustness and thermally conscious package design allow it to survive system level High Potential (HiPot) screening and DC fast charger surge currents of up to 2 mA without requiring any external components.