The HV9922N3 from Supertex is a high-efficiency LED driver IC designed for driving LEDs in a variety of lighting applications. It is a versatile solution that can be used in both buck and boost configurations.

Applications

• General LED lighting
• Architectural lighting
• Automotive lighting
• Backlighting for LCD displays
• LED street lighting

Features

• Wide input voltage range
• High efficiency
• Constant current output
• PWM dimming control
• Over-voltage protection
• Under-voltage lockout
• Open-load protection
• Short-circuit protection

Benefits

• Energy saving due to high efficiency
• Stable and consistent LED brightness
• Flexible dimming control
• Protection against various fault conditions
• Longer LED lifespan

Additional Details

The HV9922N3 operates over a wide input voltage range, typically from 8V to 450V, making it suitable for a variety of power sources. It provides constant current output to the LEDs, ensuring consistent brightness and preventing damage to the LEDs due to over-current. The IC includes comprehensive protection features, such as over-voltage protection, under-voltage lockout, open-load protection, and short-circuit protection, which enhance the reliability of the LED lighting system. It also supports PWM dimming, allowing for precise control of the LED brightness.

The HV9922N3 is designed for ease of use and requires a minimal number of external components. It is available in a compact package, making it suitable for space-constrained applications. Its high efficiency and robust protection features make it an ideal choice for a wide range of LED lighting applications where reliability and performance are critical.