The TPSI2072Q1EVM helps designers evaluate the operation and performance of the TPSI2072-Q1. This user's guide provides the connectors, test point descriptions, operational modes, schematic, bill of materials, and board layout of the EVM. The TPSI2072-Q1 is a 3.75-kVrms /5.3-kVDC dual channel isolated switch. The inputs and output connections to the board are terminal blocks, which allow for easily wired connections. The TPSI2072Q1EVM contains multiple test points for monitoring the TPSI2072-Q1 functionality.
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Always follow TI's set-up and application instructions, including use of all interface components within their recommended electrical rated voltage and power limits. Always use electrical safety precautions to help ensure your personal safety and those working around you. Contact TI's Product Information Center http://ti.com/customer support for further information.
Save all warnings and instructions for future reference.
Failure to follow warnings and instructions may result in personal injury, property damage or death due to electrical shock and burn hazards.
The term TI HV EVM refers to an electronic device typically provided as an open framed, unenclosed printed circuit board assembly. It is intended strictly for use in development laboratory environments, solely for qualified professional users having training, expertise and knowledge of electrical safety risks in development and application of high voltage electrical circuits. Any other use and/or application are strictly prohibited by Texas Instruments. If you are not suitably qualified, you should immediately stop from further use of the HV EVM.
As a precautionary measure, it is always good engineering practice to assume that the entire EVM may have fully accessible and active high voltages.
While the EVM is energized, never touch the EVM or its electrical circuits, as they could be at high voltages capable of causing electrical shock hazard.
Limitation for safe use:
EVMs are not to be used as all or part of a production unit.
The TPSI2072-Q1 is a dual channel 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 TPSI2072-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, EN1, and EN2 pins from two microcontroller GPIO pins 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 +/– 600 V from S1 to SM and S2 to SM. The TPSI2072-Q1 MOSFETs' avalanche robustness and thermally conscious package design allow it to survive system level dielectric withstand testing (HiPot) and DC fast charger surge currents of up to 2 mA without requiring any external components.