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MT7933 - AC-DC LED Driver

General Description

MT7933 is a single-stage，primary side control AC-DC LED driver with active power factor correction.

MT7933 integrates on-chip PFC circuit operates in critical conduction mode (CRM) to achieve high power factor and reduce the power MOSFET switching loss.

Key Features

  • Single-stage Active PFC for high power factor and low THD.
  • Primary side control eliminates opto-coupler.
  • High precision LED current (+/-3%).
  • Critical Conduction Mode operation.
  • Up to 20W driving capability.
  • Cycle-by-cycle current limit.

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Datasheet Details

Part number MT7933
Manufacturer Maxic Technology
File Size 429.50 KB
Description AC-DC LED Driver
Datasheet download datasheet MT7933 Datasheet

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Other Datasheets by Maxic Technology

Part Number Description
MT79332 AC-DC LED Driver
MT79335 Single Stage High Power Factor AC-DC LED Driver
MT79338 AC-DC LED Driver
MT7930 AC-DC LED Driver
MT7932 AC-DC 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.

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Maximizing IC Performance MT7933 Single Stage, High PFC, AC-DC LED Driver DESCRIPTION MT7933 is a single-stage，primary side control AC-DC LED driver with active power factor correction. MT7933 integrates on-chip PFC circuit operates in critical conduction mode (CRM) to achieve high power factor and reduce the power MOSFET switching loss. With MAXIC Proprietary control technique, precision LED current is achieved without secondary side sense and feedback circuit including opto-coupler. MT7933 provides various protections, such as over current protection (OCP), over voltage protection (OVP), short circuit protection (SCP) and over temperature protection (OTP), etc, to improve system reliability.