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/Title (NCL30082 - Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Fold-back)
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stream
BroadVision, Inc.
2020-08-26T14:33:28+02:00
2015-01-05T12:14:24-07:00
2020-08-26T14:33:28+02:00
application/pdf
NCL30082 - Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Fold-back
ON Semiconductor
The NCL30082 is a PWM current mode controller targeting isolated
flyback and non−isolated constant current topologies. The controller
operates in a quasi−resonant mode to provide high efficiency. Thanks
to a novel control method, the device is able to precisely regulate a
constant LED current from the primary side. This removes the need
for secondary side feedback circuitry, biasing and an optocoupler.
The device is highly integrated with a minimum number of external
components. A robust suite of safety protection is built in to simplify
the design. This device supports analog/digital dimming as well as
thermal current fold−back. While the NCL30082 has integrated fixed
overvoltage protection, the designer has the flexibility to program a
lower OVP level.
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