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AT3263 - Current Mode PWM Controller

General Description

AT3263 is highly integrated current mode PWM control IC optimized for high performance low standby power offline fly back converter applications.

Key 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 Current.
  • Leading Edge Blanking.
  • UVLO.
  • Gate Max Output Voltage Clamp at 18V.
  • Overload Protection (OLP).
  • Line Compensation Over Current Protection (OCP) current limiting, over load protection (OLP) and under voltage lockout (U.

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Datasheet Details

Part number AT3263
Manufacturer ATC
File Size 82.88 KB
Description Current Mode PWM Controller
Datasheet download datasheet AT3263 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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T E C H N O L O G Y AT3263 Current Mode PWM Controller Description AT3263 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.