Details

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BUY VIPER50A. https://www.utsource.net/itm/p/12608668.html

Parameter	Description	Value
Part Number	VIPER50A
Manufacturer	STMicroelectronics
Type	Offline Switcher IC
Package	DIP-8, SOP-8
Input Voltage	Operating range	120V to 265V AC
Output Power	Maximum continuous output power	50W
Switching Frequency	Internal oscillator frequency	65kHz
Standby Current	Quiescent current in shutdown mode	< 100渭A
Protection Features	Overvoltage protection, overcurrent protection, thermal shutdown	Yes
Operating Temperature	Ambient temperature range	-40掳C to 125掳C
Storage Temperature	Storage temperature range	-65掳C to 150掳C
Humidity	Relative humidity	0% to 95% (non-condensing)
Lead Finish	Matte Sn

Instructions for Use:

1. Circuit Design:

   • Ensure the input voltage is within the specified range (120V to 265V AC).
   • Design the transformer and other components to match the output power requirements.
   • Use appropriate capacitors and diodes to filter and rectify the input voltage.

2. Thermal Management:

   • Mount the VIPER50A on a heatsink if operating at high power levels to ensure proper heat dissipation.
   • Ensure adequate airflow around the component to prevent overheating.

3. Protection Circuits:

   • Utilize the built-in overvoltage, overcurrent, and thermal protection features by connecting the necessary external components as per the datasheet.
   • Implement additional external protection circuits if required for specific applications.

4. Power-On Sequence:

   • Apply the input voltage gradually to avoid inrush currents.
   • Monitor the output voltage and current during startup to ensure stable operation.

5. Testing:

   • Test the circuit under various load conditions to verify performance and stability.
   • Check for any signs of overheating or unusual behavior during prolonged operation.

6. Handling and Storage:

   • Handle the VIPER50A with care to avoid damage to the pins and package.
   • Store in a dry, cool environment to prevent moisture-related issues.

7. Compliance:

   • Ensure the design complies with relevant safety and regulatory standards for power supplies.

For detailed specifications and application notes, refer to the official datasheet from STMicroelectronics.

(For reference only)