Available in a 40-lead QFN package, the three-channel HV9986 switch-mode LED driver IC offers three dimmer switch FET drivers that enable high PWM dimming ratios and independent fault management in case of any output open- or short-circuit conditions. The part features a 40-V linear regulator that provides a 5-V power supply to the IC.
The switching frequencies of each channel can be controlled either with an external clock signal or by using the IC’s internal oscillator. The IC features peak current mode control with the channels synchronously switched 120 degrees apart to reduce input current ripple and help minimize EMI. ($2.15 ea/1,000 — samples from stock; prod qty, 4 to 6 weeks ARO.)
Supertex , Sunnyvale , CA
Kenneth Vickers 408-222-4810
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