HV9921 driver equivalent, 3-pin switch-mode led lamp driver.
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* Constant output current: 20mA
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* Universal 85 - 265VAC operation
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* Fixed off-time buck converter
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* Internal 475V power MOSFET
Applica.
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* Decorative lighting
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* Low power lighting fixtures
General Description
The HV9921 is a pulse width m.
The HV9921 is a pulse width modulated (PWM) high-efficiency LED driver control IC. It allows efficient operation of LED strings from voltage sources ranging up to 400VDC. The HV9921 includes an internal high voltage switching MOSFET controlled with f.
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