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TDA4605 - Control IC for Switched-Mode Power Supplies using MOS-Transistors

General Description

Application Circuit Application circuit shows a flyback converter for video recorders with a power rating of 50 W.

The circuit is designed as a wide-range power supply tor AC-line voltages ot 90 to 270 V.

The AC-input voltage is rectified by bridge rectifier GR1 and smoothed by C1 .

Key Features

  • q Fold-back characteristic provides overload protection for q q q q q q q external components Burst operation under short-circuit conditions Loop error protection Switch-off if line voltage is too low (undervoltage switch-off) Line voltage compensation of overload point Soft-start for quiet start-up Chip-over temperature protection (thermal shutdown) On-chip parasitic transformer oscillation suppression circuitry P-DIP-8-1 Type TDA 4605 Ordering Code Q67000-A8078 Package P-DIP-8-1 The IC T.

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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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Control IC for Switched-Mode Power Supplies using MOS-Transistors TDA 4605 Bipolar IC Features q Fold-back characteristic provides overload protection for q q q q q q q external components Burst operation under short-circuit conditions Loop error protection Switch-off if line voltage is too low (undervoltage switch-off) Line voltage compensation of overload point Soft-start for quiet start-up Chip-over temperature protection (thermal shutdown) On-chip parasitic transformer oscillation suppression circuitry P-DIP-8-1 Type TDA 4605 Ordering Code Q67000-A8078 Package P-DIP-8-1 The IC TDA 4605-1 controls the MOS-power transistor and performs all necessary regulation and monitoring functions in free running flyback converters.