1 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines

Always follow TI's setup and application instructions, including use of all interface components within the recommended electrical rated voltage and power limits. Always use electrical safety precautions to help maintain your personal safety and those working around you. Contact TI's Product Information Center http://ticsc.service-now.com for further information.

Save all warnings and instructions for future reference.

The term TI HV EVM refers to an electronic device typically provided as an open-framed unenclosed printed circuit board assembly. The TI HV EVM is intended strictly for use in development laboratory environments, solely for qualified professional users who have training, expertise, and knowledge of electrical safety risks in development and application of high voltage electrical circuits. Any other use or application are strictly prohibited by Texas Instruments. If the user is not qualified, then immediately halt further use of the HV EVM.

1. 1. Work Area Safety a. Keep work area clean and orderly.
   1. Qualified observers must be present anytime circuits are energized.
   2. Effective barriers and signage must be present in the area where the TI HV EVM and the interface electronics are energized. For the purpose of protecting inadvertent access, these signs must indicate operation of accessible high voltages can be present.
   3. All interface circuits, power supplies, evaluation modules, instruments, meters, scopes and other related apparatus used in a development environment exceeding 50 Vrms / 75 VDC must be electrically located within a protected Emergency Power Off EPO protected power strip.
   4. Use stable and non-conductive work surface.
   5. Use adequately insulated clamps and wires to attach measurement probes and instruments. No free-hand testing whenever possible.
2. Electrical Safety: As a precautionary measure, a good engineering practice is to assume that the entire EVM has fully accessible and active high voltages.
   1. De-energize the TI HV EVM and all the inputs, outputs, and electrical loads before performing any electrical or other diagnostic measurements. Confirm that the TI HV EVM power has been safely de-energized.
   2. With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring, measurement equipment connection, and other application needs, while still assuming the EVM circuit and measuring instruments are electrically live.
   3. After EVM readiness is complete, energize the EVM as intended.
      WARNING:

      WARNING ELECTRICAL SHOCK HAZARD.

      WHILE THE EVM IS ENERGIZED, NEVER TOUCH THE EVM OR THE ELECTRICAL CIRCUITS BECAUSE THERE CAN BE HIGH VOLTAGES CAPABLE OF CAUSING ELECTRICAL SHOCK HAZARD.

3. Personal Safety: Wear personal protective equipment (for example, voltage rated gloves or safety glasses with side shields) or protect the EVM in an adequate protective closure with interlocks to protect from accidental touch.
4. Limitation for safe use: EVMs are not to be used as all or part of a production unit.