8 channel constant current led driver

Overview. The PCA is an 8-channel constant current LED driver designed for LED signage and display applications. The output current is adjustable from 15 . The TLC is an I 2 C bus controlled channel LED driver that is optimized for red/green/blue/amber (RGBA) color mixing and backlight application. Each LED output has its own 8-bit resolution ( steps) fixed-frequency individual PWM controller that operates at 97 kHz, with a duty cycle that is adjustable from 0% to %.  · Design of LED Module based on WS LED driver IC (Only Red-channel is shown). To the right of the schematic you will find a simple, cheap and robust constant current LED driver. The current for the connected LED(s) can be easily adjusted with R4 (in this case about mA). On the left is the 3-channel pixel LED driver WS

onsemi CAT 8-Channel Constant Current LED Driver is a constant current driver with LED channel currents that are programmed together via an external RSET resistor. Skip to Main Content () Overview. The PCA is an 8-channel constant current LED driver designed for LED signage and display applications. The output current is adjustable from 15 mA to 60 mA controlled by an external series resistor. The PCA is an 8-channel constant current LED driver designed for LED signage and display applications. The output current is adjustable from 15 mA to 60 mA controlled by an external series resistor. The outputs are controlled via a serial interface with a maximum clock frequency of 25MHz to allow for the system requirement of high volume.

Constant current output ideal for Driving LED strings. □ Four Channel LED Driver provides matched LED current. □ Current adjusted via an external resistor. This. CMOS device includes an input shift register, accompanying data latches, and 16 MOS constant current sink drivers. The CMOS shift registers and latches. The LT drives 8 strings of LEDs by using a constant switching frequency, current mode boost controller to generate a single output voltage. VOUT for the top.