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HV9910 Universal High Brightness LED Driver General Description The HV9910 is a PWM highef ciency LED driver control IC It allows ef cient operation of High Brightness HB LEDs from voltage sources ranging from 8VDC up to 450VDC The HV9910 controls an external MOSFET at xed switching frequency up to 300kHz The frequency can be programmed using a single resistor The LED string is driven at constant current rather than constant voltage thus providing constant light output and enhanced relia......
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