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| Highly efficient LED lamp driver from Supertex  Supertex introduced the HV9925, an eight pin LED Driver IC with adjustable output current and PWM, pulse width modulated, dimming. The IC is ideal for driving multi-LED strings in off-line applications such as decorative lighting and low power lighting fixtures. An enable input facilitates PWM dimming of the entire LED load. The output current of the IC can be programmed between 20 and 50mA by a single resistor. The HV9925 also includes an internal 500V switching MOSFET and built in thermal shutdown to prevent excessive power dissipation. The IC accepts inputs of 85-264V AC and 20-400V DC.The HV9925 is available in an eight pin SOIC package. write your comments about the article :: © 2006 Construction News :: home page |