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.