HV9931 driver equivalent, unity power factor led lamp driver.
* Constant Output Current LED Driver
* Large Step-Down Ratio
* Unity Power Factor
* Low-Input Current Harmonic Distortion
* Fixed-Frequency or Fixed O.
* Offline LED Lamps and Fixtures
* Street Lamps
* Traffic Signals
* Decorative Lighting
General Descrip.
The HV9931 is a fixed-frequency PWM controller IC designed to control an LED lamp driver using a single-stage PFC buck-boost-buck topology. It can achieve a unity power factor and a very high step-down ratio that enables driving a single high-brightn.
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