The TPSI2240-Q1 is an isolated solid-state relay, designed for high-voltage automotive and industrial applications. The TPSI2240-Q1 seamlessly replaces mechanical and photo relays by integrating TI's capacitive isolation technology. The capacitive isolation technology does not suffer from common failure modes such as mechanical wear out or photo degradation. The entire primary side of the device requires only 5mA of input current, incorporating a fail-safe EN pin preventing any possibility of back powering the VDD supply. The secondary side consists of back-to-back MOSFETs with a standoff voltage of 1200V from S1 to S2. The avalanche robust MOSFETs and the thermal benefits of the widened pins on the 11 DWQ package enable the TPSI2240-Q1 to withstand High Potential (HiPot) screening and DC fast charger surge currents, assuming appropriate component selection for the application. The TPSI2240Q1EVM helps users evaluate the operation and performance of the TPSI2240-Q1 isolated switch with reinforced isolation rating up to 5kVrms. The inputs and output connections to the board are terminal blocks, which allow for easily wired connections. This EVM user's guide provides the connectors, test point descriptions, operational modes, schematic, bill of materials, and board layout of the EVM.