BL9582 Datasheet | BELLING

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-Dowsnin Cgleonorvemrutlteiprle 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 ponents, 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 pensation 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 applied DC - Low voltage halogen replacement LEDs voltage. During the PWM dimming, this will - Automotive lighting provide a gated output current and the - Low voltage industrial lighting average current is proportional to the...