Instructions for Use:

General Guidelines:

1. Power Supply Connection: Ensure the input voltage is within the specified range (70 - 400V). Connect the input voltage to the appropriate pins.
2. Output Configuration: Set up the output circuit according to the desired output power and voltage. Use external components like resistors and capacitors as specified in the datasheet.
3. Thermal Management: Ensure adequate heat dissipation, especially for high-power applications. Use a heatsink if necessary.
4. Protection Circuits: The VIPER12A and VIPER12ADIP-E include built-in protection features. Do not bypass these unless you have a specific reason and understand the implications.

Specific Instructions:

• VIPER12A (SO-8 Package):

  • Pin Configuration:
    • Pin 1: Vcc
    • Pin 2: GND
    • Pin 3: Feedback
    • Pin 4: NC (No Connect)
    • Pin 5: Drain
    • Pin 6: Source
    • Pin 7: NC (No Connect)
    • Pin 8: NC (No Connect)
  • Mounting: Solder the SO-8 package onto the PCB with proper alignment and soldering techniques. Ensure all pins are securely connected.

• VIPER12ADIP-E (DIP-8 Package):

  • Pin Configuration:
    • Pin 1: Vcc
    • Pin 2: GND
    • Pin 3: Feedback
    • Pin 4: NC (No Connect)
    • Pin 5: Drain
    • Pin 6: Source
    • Pin 7: NC (No Connect)
    • Pin 8: NC (No Connect)
  • Mounting: Insert the DIP-8 package into the socket or solder it directly onto the PCB. Ensure all pins are aligned correctly before soldering.

Troubleshooting:

• No Output: Check input voltage, connections, and external components.
• Overheating: Verify thermal management and ensure the device is not overloaded.
• Oscillation: Check feedback loop and ensure proper decoupling capacitors are used.

For detailed application circuits and further information, refer to the official datasheets provided by STMicroelectronics.