VIPER22A Offline Switching Power Supply IC (DIP 8, PWM Controller)

The VIPER22A is an offline switching power supply integrated circuit from STMicroelectronics. It combines a current mode pulse width modulation controller and a high voltage power MOSFET in a single device. It is designed for compact switch mode power supplies used in adapters, standby power supplies, and auxiliary power circuits. <Link url="https://www.st.com/en/power-management/viper22a-e.html" title="Manufacturer product page"/>

Key Features -

• Integrated PWM controller and high voltage power MOSFET

• Fixed switching frequency of 60 kHz

• Current mode control for power regulation

• High voltage startup current source

• Automatic burst mode under light load conditions

• Overcurrent, overtemperature, and overvoltage protection

• Automatic restart protection

Specifications -

• Part Number: VIPER22A

• Manufacturer: STMicroelectronics

• Component Type: Offline Switching Power Supply IC

• Switching Frequency: 60 kHz

• VDD Supply Voltage: 9V to 38V operating range

• Integrated MOSFET Drain Voltage Rating: Up to 730V under specified conditions

• Package: DIP 8 or SO 8, depending on the exact variant

• Power Capability: Depends on input voltage, output requirements, transformer design, and thermal conditions

Applications -

• AC to DC switching power supplies

• Battery charger adapters

• Television and monitor standby power supplies

• Auxiliary power supplies for motor control

• Consumer electronics power circuits

• Compact offline power converters