2010/12/08 Chiplus announces CS8801: a 18V/1A High Brightness Constant Current LED Driver

The chip is a constant current output floating buck switching converter designed to provide constant current to high power LEDs with high efficiency. The device is ideal for architectural, industrial and ambient lighting applications.

The chip delivers constant current within ±5% accuracy to a wide variety and number of series connected LEDs. Output current is adjusted with an external current sensing resistor to drive high power LEDs in excess of 1A. For improved accuracy and efficiency, the chip features dual-side hysteresis, and short propagation delay. Additional features a dimming input to enable LED brightness control by Pulse Width Modulation (PWM).

Additional features include a +5V regulated output with 10mA output current ability.