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HV9919B High Brightness LED Driver

HV9919B Description

HV9919B Hysteretic, Buck, High Brightness LED Driver with High-Side Current Sensing .
HV9919B is a Pulse-Width Modulation (PWM) controller IC designed to drive high-brightness LEDs using a buck topology.

HV9919B Features

* Hysteretic control with high-side current sensing
* Wide input-voltage range: 4.5 to 40V
* >90% Efficiency
* Typical ±5% LED current accuracy
* Up to 2.0MHz switching frequency
* Adjustable constant LED current
* Analog or PWM control signal

HV9919B Applications

* Low-voltage industrial and architectural lighting
* General purpose constant current source
* Signage and decorative LED lighting

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High Brightness LED Driver Microchip
Microchip HV9919B-like datasheet