400KHz 32V 2A Switching Current Boost LED Constant Current Driver
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 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 package
Applications
n LED Lighting n Boost constant current driver n Monitor LED Backlighting n 7’ to 15’ LCD Panels...