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TEA1751LT - HV start-up DCM/QR flyback controller

General Description

The TEA1751LT is the third generation of green Switched Mode Power Supply (SMPS) controller ICs.

The TEA1751LT combines a controller for Power Factor Correction (PFC) and a flyback controller.

Key Features

  • 2.1 Distinctive features.
  • Integrated PFC and flyback controller.
  • Universal mains supply operation (70 V (AC) to 276 V (AC)).
  • Dual-boost PFC with accurate maximum output voltage (NXP patented).
  • High level of integration, resulting in a very low external component count and a cost-effective design 2.2 Green features.
  • On-chip start-up current source 2.3 PFC green features.
  • Valley/Zero Voltage Switching (ZVS) for minimum switching losses (NXP patented).
  • Frequency l.

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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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TEA1751LT HV start-up DCM/QR flyback controller with integrated DCM/QR PFC controller Rev. 3 — 9 January 2013 Product data sheet 1. General description The TEA1751LT is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The TEA1751LT combines a controller for Power Factor Correction (PFC) and a flyback controller. Its high level of integration allows the design of a cost-effective power supply with a very low number of external components. The special built-in green functions provide high efficiency at all power levels. This efficiency applies to quasi-resonant operation at high-power levels, quasi-resonant operation with valley skipping, as well as reduced frequency operation at lower power levels.