CP2141 Datasheet (CHIP) - 3-Channel Low-Dropout Constant-Current Parallel LED Driver

CP2141, 3-Channel Low-Dropout Constant-Current Parallel LED Driver

The CP2141, a 3-channel low-dropout constant-current parallel LED driver, can be used to drive white LED, red LED, blue LED or any color LED whose forward operating voltage is lower than the battery voltage.

The unique Auto-MirrorTM technology is introduced in CP2141, which can guarantee a constant

CP2141 Features

* y y y y y y y y y y y No External Component Required 20mA Full Scale Current per Channel Only 100mV Dropout Voltage Needed at 20mA per Channel 1-Wire Pulse Counting Dimming: 16 Steps Logarithmic Scale LED Current Matching: ±2% (typical) Over 90% Efficiency can be Reached No EMI and Switch Noise Ther