Description
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.
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 Power MOSFET n Built in LED Open Protection n Built in Soft-Start Function n Built in Frequency Compensation n Built in Thermal Shutdown Function n Built in Current Limit Function n Available in SOP8 p.
HM6281 Datasheet
