Programmable-Current LED Lamp Driver IC With PWM Dimming

The HV9925 is a pulse width modulated (PWM) high-ef,ciency LED driver control IC with PWM dimming capabilities. It allows ef,cient operation of high brightness LED strings from voltage sources ranging up to 400VDC. The HV9925 includes an internal High-Voltage switching MOSFET controlled with a ,xed off-time (T ) of approximately 10.5s. The LED string OFF is driven at constant current, thus providing constant light output and enhanced reliability. Selecting a value of a current sense resistor CAN externally program the output LED current of the HV9925. The peak current control scheme provides good regulation of the output current throughout the universal AC line voltage range of 85 to 264VAC or DC input voltage of 20 to 400V. The HV9925 is designed with a built in thermal shutdown to prevent excessive power dissipation in the IC. By Supertex, Inc.
Part Manufacturer Description Datasheet Samples
HV9925SG-G Microchip Technology Inc LED DISPLAY DRIVER, PDSO8
HV9925 's PackagesHV9925 's pdf datasheet

HV9925 Pinout, Pinouts
HV9925 pinout,Pin out
This is one package pinout of HV9925,If you need more pinouts please download HV9925's pdf datasheet.

HV9925 Application circuits
HV9925 circuits
This is one application circuit of HV9925,If you need more circuits,please download HV9925's pdf datasheet.

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