AC-DC Products

GP8238 released on Janurary 2009 , it is a 1.2MHz step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four LEDs in series from a Li-ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The GP8238 switches at 1.2 MHz, allowing the use of tiny external components. The output capacitor can be as small as 0.22μF, saving space and cost versus alternative solutions. A special designed 95mV low feedback voltage minimizes power loss in the current sensing resistor and achieves higher power efficiency.
The GP8238 was packaged with a small SOT23-6 package. Unit price of USD$0.21 in 1,000ea quantity.

Back



	GP8238 was released on Janurary 2009 to serve LCD backlit and lighting application.
	GP8238 released on Janurary 2009 , it is a 1.2MHz step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four LEDs in series from a Li-ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The GP8238 switches at 1.2 MHz, allowing the use of tiny external components. The output capacitor can be as small as 0.22μF, saving space and cost versus alternative solutions. A special designed 95mV low feedback voltage minimizes power loss in the current sensing resistor and achieves higher power efficiency. The GP8238 was packaged with a small SOT23-6 package. Unit price of USD$0.21 in 1,000ea quantity. Back