Low Voltage Boost Driver PR4404 for 0.5W / 1W Power LEDs
The PR4404 is a step-up converter for white LEDs, operating with single battery cell
supply (1.2/1.5V) at up to 150mA LED current or dual cell supply (2.4/3.0V) at up to
300mA LED current.
A minimum part count allows compact and cost-efficient solutions.
The converter can be switched on and off with a logic signal, which is useful e.g. for PWM
control, timer circuits etc.
PR4404主要特性:
minimum startup voltage 1.0V
supply by one or two battery cells
low number of external components
battery deep discharge protection
应用:
LED torches
LCD panel backlighting
home lighting
toys