APE1601

Advanced Power Electronics Corp. APE1601/A White LED Driver (120mA Charge Pump with Current Source) ™ GENERAL DESCRIPTION The APE1601 is a high efficiency charge pump white LED driver. It supports up to 4 white LEDs with regulated constant current for uniform intensity. The APE1601 maintains the highest efficiency by utilizing a x1/x1.5/x2 fractional charge pump and low dropout current regulators. User can easily configure each LED current up 30mA by an external resistor. Two digital inputs can be programmable to control white LED On/Off. LED dimming can be achieved by applying a PWM signal to the digital control signals. The operating voltage range is 2.5V to 5.5V. Internal soft-start circuitry effectively reduces the in-rush current both while start-up and mode change. APE1601 also provides comprehensive protections such short circuit protection and over-temperature protection. The load is disconnected from VIN while shutdown and the shutdown current is less than 1uA. APE1601 is ...