MCHPHV9803BLG-G
Overview
The HV9803BLG-G is an LED driver IC designed for average-mode constant current control, providing high accuracy without the need for complex loop compensation. It operates over a supply voltage range of 7V to 16V and utilizes a fixed off-time switching scheme to maintain a stable LED current.
Why Choose This Part
The IC features fast average current control and internal correction for propagation delays and offset voltages, ensuring superior accuracy over temperature. It simplifies design by offering both analog linear dimming and PWM dimming inputs while providing robust protection via programmable skip mode for short-circuits.
Applications
Key Specifications
Getting Started
To evaluate this driver, design a PCB with a buck converter topology using an external MOSFET, as this IC does not include an internal switch. Refer to the Microchip application notes for calculating the fixed off-time and current sense resistor values to match your specific LED load requirements.
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