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Holtek Releases New High-Power 150W LED Driver IC


New HT7L5820 LED Driver IC is Suitable for High-Power LED Lamps up to 150W


Holtek Releases New High-Power 150W LED Driver IC The HT7L5820 is a Power Factor Corrected Quasi-Resonant PWM controller for 30W~150W high output power LED lamps, such as LED lamps for outdoor street lighting and ceiling lamps for indoor illumination. The device can also be used in adapters, switching power supplies as well as constant voltage and constant current output battery charger applications.

The highly integrated power factor corrected quasi-resonant PWM controller has an integrated 650V high Voltage JFET used in its quick start-up function which greatly reduces the need for external components. Using an integrated transfer mode, it provides an adjustable low cost system with a high power factor output voltage, which can reduce the input current distortion to improve the Total Harmonic Distortion performance. The quasi-resonant PWM controller includes functions such as valley detection and green mode to provide better system efficiencies and lower electromagnetic interference.

The device also contains a full series of protection mechanisms such as internal over temperature protection with a self-recovery function, external adjustable over temperature protection and DET output over voltage protection. Additional protection features include a secondary side open circuit and over current protection, VCC input over voltage protection as well as AC input voltage brown-in/out protection, features which combine to ensure safe and reliable operation.

The device is supplied in a standard 16-pin NSOP package and is rated for industrial use.

The company's Web site address is http://www.holtek.com/.


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