HV9921 |
Part Number | HV9921 |
Manufacturer | Microchip (https://www.microchip.com/) |
Description | HV9921/HV9922/HV9923 are pulse-width modulated (PWM), high-efficiency, LED driver control ICs. They allow efficient operation of LED strings from voltage sources ranging up to 400VDC. HV9921/22/23 inc... |
Features |
• Constant output current: - HV9921 – 20mA - HV9922 – 50mA - HV9923 – 30mA • Universal 85 - 264VAC operation • Fixed off-time buck converter • Internal 475V power MOSFET Applications • Decorative lighting • Low power lighting fixtures Description HV9921/HV9922/HV9923 are pulse-width modulated (PWM), high-efficiency, LED driver control ICs. They allow efficient operation of LED strings from voltage sources ranging up to 400VDC. HV9921/22/23 include an internal high voltage switching MOSFET controlled with fixed off-time (TOFF) of approximately 10μs. The LED string is driven at constant current... |
Document |
HV9921 Data Sheet
PDF 334.24KB |
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