BL9581 Datasheet (BELLING) - High Brightness LED Driver

BL9581, High Brightness LED Driver

The BL9581 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage.

The device operates from an input supply between 6V and 36V and provides an externally output current up to 1.2A

BL9581 Features

* z Simple low parts count z Internal 36V NDMOS switch z Up to 1.2A output current z Single pin on/off and brightness control using DC voltage or PWM z Soft Start z High efficiency (up to 97%) z Wide input voltage range: 6V to 36V z Output shutdown z Up to 1MHz switching frequency z Inherent open-circ