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R7731 - Burst Triple-Mode PWM Flyback Controller

General Description

The R7731 is a high performance, low cost, low start-up current, current mode PWM controller with burst triple mode to support green mode power saving operation.

Key Features

  • fruitful protections like OLP (Over Load Protection) ,OVP (Over Voltage Protection) to eliminate the external protection circuits and provide reliable operation. R7731 is available in SOT-23-6 and DIP-8 packages.

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Datasheet Details

Part number R7731
Manufacturer Richtek Technology
File Size 531.88 KB
Description Burst Triple-Mode PWM Flyback Controller
Datasheet download datasheet R7731 Datasheet

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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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R7731 Burst Triple Mode PWM Flyback Controller General Description The R7731 is a high performance, low cost, low start-up current, current mode PWM controller with burst triple mode to support green mode power saving operation. The R7731 integrates functions of Soft-Start, Under Voltage Lockout (UVLO), Leading Edge Blanking (LEB), Over Temperature Protection (OTP), internal slope compensation. It provides the users a superior AC/DC power application of higher efficiency, low external component counts and lower cost solution. To protect the external power MOSFET from being damaged by supply over voltage, the R7731 output driver is clamped at 12V.