The HV823LG is a high-voltage LED driver IC manufactured by Supertex, Inc. It is designed for single-stage, power-factor-corrected (PFC) LED lighting applications. This IC integrates the control and drive functions necessary for efficient and cost-effective LED lighting solutions. The HV823LG utilizes a quasi-resonant flyback topology to achieve high power factor and low total harmonic distortion (THD).

Applications:

• LED Bulb Replacement
• LED Tube Lighting
• LED Downlights
• General LED Lighting
• Commercial LED Lighting

Features:

• Single-stage PFC control
• Quasi-resonant flyback topology
• High power factor correction
• Low total harmonic distortion (THD)
• Integrated high-voltage start-up
• Overvoltage protection (OVP)
• Overcurrent protection (OCP)
• Overtemperature protection (OTP)
• Open-load protection
• Short-circuit protection
• Programmable switching frequency
• Compact package

Benefits:

• High efficiency: The quasi-resonant flyback topology minimizes switching losses, resulting in high efficiency.
• Improved power quality: The active PFC circuitry ensures a high power factor and low THD, meeting regulatory requirements and improving overall power quality.
• Enhanced reliability: Comprehensive protection features safeguard the LED driver and the connected LED load from various fault conditions.
• Simplified design: The integrated functions reduce the external component count, simplifying the design process and lowering BOM costs.
• Cost-effective solution: The HV823LG provides a cost-effective solution for LED lighting applications by integrating multiple functions into a single IC.
• Extended LED lifespan: By providing stable and regulated current to the LEDs, the HV823LG helps extend their lifespan.

Additional Details:

The HV823LG operates from a wide input voltage range and is suitable for worldwide use. It is available in a compact package, making it ideal for space-constrained applications. The IC includes a high-voltage start-up circuit, eliminating the need for an external start-up resistor. The programmable switching frequency allows designers to optimize the performance for specific applications. The comprehensive protection features, including overvoltage, overcurrent, overtemperature, open-load, and short-circuit protection, ensure robust and reliable operation. The HV823LG is designed to meet the stringent requirements of modern LED lighting applications, providing a highly efficient and reliable solution.