Available in 40-lead QFN and 44-lead QSOP packages, the three-channel HV9985 LED driver IC is designed to provide high LED current accuracy through closed-loop control of the output current. The chip is suitable for driving multiple strings of backlight or edgelight LEDs in LCD televisions.
The driver contains three peak current mode controllers that provide feedback to the IC. Gate drivers within the chip are optimized for driving logic level FETs at 0.25-A sourcing or 0.5-A sinking. Each output current can be individually dimmed via linear or PWM dimming methods. (From $1.98 ea/1,000 — call company for availability.)
Supertex , Sunnyvale , CA
Kenneth Vickers 408-222-4810
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