CP2139 Description
The CP2139, 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 CP2139, which can guarantee a constant LED current in various operating conditions. With the PWM signal on the EN pin, the brightness of LED can be adjusted...