The STMicroelectronics VIPER22ADIP-E is an integrated offline switching power supply IC that combines a current-mode PWM controller and a high-voltage power MOSFET on a single chip. This integration helps simplify power supply designs and reduce the number of external components.
The device operates at a fixed switching frequency of 60kHz and incorporates a high-voltage startup current source. Its VDD supply voltage range is 9V to 38V, making it suitable for various auxiliary supply circuits and offline switching power supply applications. Automatic burst-mode operation at light loads helps reduce power consumption under low-load conditions.
The VIPER22ADIP-E integrates auxiliary undervoltage lockout, overcurrent protection, overtemperature protection, and overvoltage protection. Its automatic restart functionality helps improve power system reliability. Typical applications include battery charger adapters, standby power supplies for televisions and monitors, auxiliary supplies for motor control, and other low-power switching power supplies.
This device comes in an 8-pin DIP package designed for through-hole mounting in compatible power supply circuits.
Key Features:
- Brand: STMicroelectronics (ST)
- Manufacturer Part Number: VIPER22ADIP-E
- Component Type: Offline Switching Power Supply Controller
- Control Method: Current-Mode PWM
- Switching Frequency: Fixed 60kHz
- Integrated Power Device: High-Voltage Power MOSFET
- MOSFET Breakdown Voltage: 730V minimum
- VDD Supply Voltage Range: 9V–38V
- Operating Mode: Automatic Burst Mode at Light Loads
- Protection Features: Undervoltage Lockout, Overcurrent, Overtemperature, and Overvoltage Protection
- Fault Recovery: Automatic Restart
- Package: DIP-8
- Mounting Type: Through-Hole
- Applications: Power Adapters, Standby Power Supplies, TV and Monitor Power Supplies, and Auxiliary Motor Control Supplies
Before purchasing or integrating this device, consult the official ST datasheet to verify input voltage, output power, transformer design, thermal requirements, and external component specifications. Offline power supply designs involve hazardous voltages and must comply with applicable electrical safety requirements.
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