BL9582

BL9582 32V, 1.4A Step-down High Brightness LED Driver with Internal Switch FEATURES DESCRIPTION  Simple low parts count The BL9582 is a continuous mode inductive  Internal 32V NDMOS switch  Up to 1.4A output current step-down converter, designed for driving Step-DowsninCgleonorvemrutlteiprle series connected LEDs  Single pin on/off and brightness control using DC voltage or PWM efficiently from a voltage source higher than, the LED voltage. The device operates from  Soft Start an input supply between 6V and 32V and  High efficiency (up to 97%) provides an externally output current up to  Wide input voltage range: 6V to 32V 1.4A. Depending upon supply voltage and  Output shutdown external components, this can provides up to  Up to 1MHz switching frequency 24 watts of output power.  Inherent open-circuit LED protection The BL9582 includes the output switch and a  Typical 4% output current accuracy high-side output current sensing circuit, which  High-side current sense uses an external resistor to set the nominal  Hysteretic control: no compensation average output current.  Adjustable constant LED current Output current can be adjusted by applying  Over temperature protection an external control signal to the 'ADJ' pin.  Pb-free SOT89-5 packages The ADJ pin will accept either a DC voltage or a PWM waveform. During DC dimming, APPLICATIONS this will provide a continuous output current that is proportional to the external applie...