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UC3844 - CURRENTMODE PWM CONTROLLER

Download the UC3844 datasheet PDF (UC3843 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for currentmode pwm controller.

Description

TheUC3842/3/4/5family of controlICs provides the necessary

Features

  • to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count. Internallyimplementedcircuits include undervoltagelockout featuring start-up current less than 1 mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparatorwhich also providescurrentlimit control,and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel M.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC3843_STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by STMicroelectronics
  • UC3844D - CURRENTMODE PWM CONTROLLER
  • UC3844T - (UC3842T - UC3845T) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
  • UC3840 - PWM CONTROLLER
  • UC3842T - (UC3842T - UC3845T) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
  • UC3843 - CURRENTMODE PWM CONTROLLER
  • UC3843T - (UC3842T - UC3845T) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
  • UC3845T - (UC3842T - UC3845T) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Full PDF Text Transcription

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www.DataSheet4U.com ® UC2842/3/4/5 UC3842/3/4/5 CURRENT MODE PWM CONTROLLER . . . . . . . . . . . OPTIMIZED FOR OFF-LINE AND DC TO DC CONVERTERS LOW START-UP CURRENT (< 1 mA) AUTOMATIC FEED FORWARD COMPENSATION PULSE-BY-PULSE CURRENT LIMITING ENHANCED LOAD RESPONSE CHARACTERISTICS UNDER-VOLTAGE LOCKOUT WITH HYSTERESIS DOUBLE PULSE SUPPRESSION HIGH CURRENT TOTEM POLE OUTPUT INTERNALLY TRIMMED BANDGAP REFERENCE 500 KHz OPERATION LOW RO ERROR AMP Minidip SO14 DESCRIPTION TheUC3842/3/4/5family of controlICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal externalparts count.
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