Integrated 3-Channel LED Array Driver IC

The HV9980 is a fully integrated, 3-channel, peak-current PWM Controller for driving buck converters in constant output current mode. It is optimized for use with a large array of LED strings, where multiple HV9980 ICs share a common Clock and the Voltage Reference is external to the HV9980 for improved output current accuracy and uniform illumination. The HV9980 has three built-in 160V, 25 ohm switching MOSFETs that save board space and overall system cost. The three output currents CAN be individually dimmed using either linear or PWM dimming. In addition, the fast transient response of the IC's current mode control supports local dimming and scanning mode capability, ideal for backlighting large screen LCD TVs Each CS input is also equipped with a reset Switch that CAN be used for an optional external slope compensation circuit to achieve a duty cycle greater than 50%. The output signal polarity select pin (POL) is included for inverse polarity of the output signal. By Supertex, Inc.
Part Manufacturer Description Datasheet Samples
HV9980WG-G Microchip Technology Inc LED DISPLAY DRIVER, PDSO24
HV9980 's PackagesHV9980 's pdf datasheet

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HV9980 Application circuits
HV9980 circuits
This is one application circuit of HV9980,If you need more circuits,please download HV9980's pdf datasheet.

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