HM6281 Datasheet - H&M Semiconductor

HM6281 400KHz 32V 2A Switching Current Boost LED Constant Current Driver

The HM6281 regulator is fixed frequency PWM Boost (step-up) LED constant current driver, capable of driving Series 1W LED units with excellent line and load regulation. The regulator is simple to use because it includes internal frequency compensation and a fixed-frequency oscillator so that it requ.

HM6281 Features

* n Wide 3.6V to 24V Input Voltage Rang n 0.22V Constant Current Sense Voltage n Directly drive 3~8 Series 1W LED n Fixed 400KHz Switching Frequency n Max. 2A Switching Current Capability n Up to 92% efficiency n Excellent line and load regulation n EN PIN TTL shutdown capability n Internal Optimize P

HM6281-HMSemiconductor.pdf