VIPER22 switching power supply

The VIPer22 series is a range of integrated circuits designed for low-power offline switch-mode power supplies (SMPS). These ICs integrate a high-voltage power MOSFET with a current-mode PWM controller, allowing for high efficiency and compact power supply designs. The VIPer22 series is typically used in applications such as AC-DC adapters, battery chargers, and small power supplies where low power consumption and high reliability are required.

Key Features:

• Integrated high-voltage MOSFET with current-mode PWM controller.
• Wide input voltage range for different applications.
• Fixed frequency operation for stable performance.
• Built-in protection features including overcurrent, overvoltage, and thermal shutdown.
• Automatic burst mode operation for low-load conditions to improve efficiency.
• Low startup current and low power consumption in standby mode.

Technical Specifications:

• Input Voltage Range: Typically 9 V to 38 V (check specific variant for exact range).
• Switching Frequency: Fixed frequency (often 60 kHz or 100 kHz, depending on the variant).
• Drain-Source Voltage (VDS): Up to 730 V.
• Peak Current Limitation: Internally set for protection.
• Undervoltage Lockout (UVLO) Thresholds: Specific values vary by variant.
• Thermal Shutdown: Typically around 140°C to 170°C.

Applications:

• AC-DC power adapters for consumer electronics.
• Battery chargers for various battery types.
• Power supplies for small electronic devices.
• Auxiliary power supplies in consumer and industrial equipment.

Usage:

• Suitable for applications requiring a compact and efficient power supply.
• Ideal for designs needing integrated protection features to ensure reliability.
• Commonly used in applications where space and efficiency are critical.

Caution:

• Ensure proper heat dissipation to avoid overheating.
• Adhere to absolute maximum ratings to prevent damage to the IC.
• Implement adequate filtering and layout practices to ensure stable operation.

Datasheet:

For detailed specifications, pin configuration, and design recommendations, refer to the VIPer22 datasheet