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HV9922 - 3-Pin Switch-Mode LED Lamp Driver ICs

Download the HV9922 datasheet PDF. This datasheet also covers the HV9921 variant, as both devices belong to the same 3-pin switch-mode led lamp driver ics family and are provided as variant models within a single manufacturer datasheet.

General 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.

Key Features

  • Constant output current: - HV9921.
  • 20mA - HV9922.
  • 50mA - HV9923.
  • 30mA.
  • Universal 85 - 264VAC operation.
  • Fixed off-time buck converter.
  • Internal 475V power MOSFET.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HV9921-Microchip.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
HV9922 (HV9921 - HV9923) 3-Pin Switch-Mode LED Lamp Driver ICs Supertex
HV9921 3-Pin Switch-Mode LED Lamp Driver Supertex
HV9923 (HV9921 - HV9923) 3-Pin Switch-Mode LED Lamp Driver ICs Supertex
HV9925 Programmable-Current LED Lamp Driver IC Supertex
HV9901 Universal Relay Driver Supertex Inc

Other Datasheets by Microchip Technology

Part Number Description
HV9921 3-Pin Switch-Mode LED Lamp Driver
HV9923 3-Pin Switch-Mode LED Lamp Driver ICs
HV9910B Universal High-Brightness LED Driver
HV9910C Universal High-Brightness LED Driver
HV9911 Switch-Mode LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
HV9921/HV9922/HV9923 3-Pin Switch-Mode LED Lamp Driver ICs 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, thus providing constant light output and enhanced reliability.