Supertex CL3 series of LED drives

Wang Cheng (Avanlane) is currently equipped with Supertex's CL325SG-G, CL320SG-G, CL330SG-G series LED driver. The CL3 series LED driver is widely used in LCD backlight, indicator and other products. Supertex company is a supplier of semiconductor technology based production of high voltage analog and mixed signal, and its products are mainly used in the interface between computer and low voltage signal in the analog world of reality on the application of high voltage.

The CL3 series LED driver is a three channel linear LED driver, with its independent enable side allowing each channel to PWM dimming, a three step linear dimming, or an individual LED string disconnect. The over temperature protection circuit when the rated temperature of 135 degrees, close all the three channels, when the normal operation, the temperature dropped by 30 degrees C. The CL series LED driver is available in a 8 lead SOIC package and requires a single ceramic bypass capacitor that can be shared for several drives.

Where CL325 is a constant current power supply for 25mA drive 3 color LED driver, CL320 is a constant current power supply for the 20mA drive when the driver of the 3 color LED, while the CL330 is a constant current power supply for the 30mA driver to drive a 3 color. Other drivers can work when the constant current range is 20-30mA. The drive current of each drive is fixed, the error is + 6%, the output voltage is 4.0-15V.

Source: International Electronic Business