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TEA1750 - GreenChip III SMPS controller

General Description

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

The TEA1750 combines a controller for Power Factor Correction (PFC) and a flyback controller.

Key Features

  • 2.1 Distinctive features I Integrated PFC and flyback controller I Universal mains supply operation (70 V AC to 276 V AC) I High level of integration, resulting in a very low external component count and a cost-effective design 2.2 Green features I On-chip start-up current source 2.3 PFC green features I Valley/zero voltage switching for minimum switching losses (patented) I Frequency limitation to reduce switching losses I Burst mode operation if a low load is detected at the flyback output (pa.

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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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TEA1750 GreenChip III SMPS control IC Rev. 02 — 15 December 2008 www.datasheet4u.com Product data sheet 1. General description The GreenChip III is the third generation of green Switched Mode Power Supply (SMPS) controller ICs. The TEA1750 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 applies to quasi-resonant operation at high power levels, quasi-resonant operation with valley skipping, as well as to reduced frequency operation at lower power levels. At low power levels, the PFC switches over to burst mode control to maintain high efficiency.