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MC7731N6 - Current Mode PWM Controller

General Description

MC7731N6 is highly integrated current mode PWM control IC optimized for high performance low standby power offline fly back converter applications.

Key Features

  • including cycle-by-cycle current limiting, over-load protection (OLP) and under voltage lockout(UVLO). Excellent EMI performance is achieved with frequency jitter technique together with soft switching control at the totem pole gate driver. Features.
  • Frequency jitter function to improve EMI performance of power supply.
  • No-audible-noise green mode Control.
  • External Programmable PWM Switching Frequency.
  • Internal Slope Compensation.
  • Low VDD Startup Current and Low Operating.

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Datasheet Details

Part number MC7731N6
Manufacturer Cystech Electonics
File Size 363.97 KB
Description Current Mode PWM Controller
Datasheet download datasheet MC7731N6 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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CYStech Electronics Corp. Spec. No. : C494N6 Issued Date : 2012.04.02 Revised Date : Page No. : 1/10 Current Mode PWM Controller MC7731N6 Description MC7731N6 is highly integrated current mode PWM control IC optimized for high performance low standby power offline fly back converter applications. To meet the international power conservation requirements, optimized green mode is integrated to improve the efficiency at light or no load conditions with no audible noise. Slope compensation is integrated to ensure the stability at high load. Lead edge blanking is integrated to prevent the false trigger at the transition of the switch. Soft switching control at the gate drive can improve the EMI performance of the power supply. The Gate-drive output is clamped at 18V to protect the power MOS.