Click to expand full text
PS4508
40V, 120mA Single Channel Linear LED Driver
Features
Adjustable output current LED driver
Support digital and analog dimming control
Maximum 120mA output current regulator
Wide supply voltage ranges from 4.5V to 40V
±4% output current accuracy
Confidential Lowquiescentcurrent
Thermal protect: Current ramp down 3.3%/℃ RoHS Compliant and Halogen Free
General Description
PS4508 is a single channel LED driver with adjustable output current. The output current typically ranges from 10mA to 120mA through external current setting resistor (REXT pin). To achieve no flick feature with analog dimming control, the set output current is linearly controlled by dimming control (PDIM pin) ranging from 0.25V to 3V.