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IW1812 - Off-Line Digital Green-Mode PWM Controller

General Description

The iW1812 is a high performance AC/DC power supply control device which uses digital control technology to build peak current mode PWM flyback power supplies.

Key Features

  • while minimizing the external component count, simplifying EMI design, and lowering the total bill of material cost. The iW1812 removes the need for secondary feedback circuitry while achieving excellent line and load regulation. It also eliminates the need for loop compensation components while maintaining stability in all operating conditions. The pulse-by-pulse waveform analysis allows for a loop response that is much faster than traditional solutions, resulting in improved dynamic load respo.

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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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iW1812 Off-Line Digital Green-Mode PWM Controller Integrated with Power BJT and OTP 1 Description The iW1812 is a high performance AC/DC power supply control device which uses digital control technology to build peak current mode PWM flyback power supplies. This device includes an internal power BJT and operates in quasiresonant mode to provide high efficiency along with a number of key built-in protection features while minimizing the external component count, simplifying EMI design, and lowering the total bill of material cost. The iW1812 removes the need for secondary feedback circuitry while achieving excellent line and load regulation. It also eliminates the need for loop compensation components while maintaining stability in all operating conditions.