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UC3843A - CURRENT MODE PWM CONTROL CIRCUITS

Download the UC3843A datasheet PDF. This datasheet also covers the UC3842A variant, as both devices belong to the same current mode pwm control circuits family and are provided as variant models within a single manufacturer datasheet.

General Description

The UTC UC3842A/3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode, controlled switching circuits with minimal external components.

Key Features

  • S.
  • Low Start Up Current ( Typical 0.12mA ).
  • Automatic Feed Forward Compensation.
  • Pulse-by-Pulse Current Limiting.
  • Under-voltage Lockout with Hysteresis.
  • Double Pulse Suppression.
  • High Current Totem Pole Output to Drive MOSFET Directly.
  • Internally Trimmed Band Gap Reference.
  • 500kHz Operation.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UC3842A_UTC.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by Unisonic Technologies

Part Number Description
UC3843A CURRENT MODE PWM CONTROLLER
UC3843A-Q PWM CONTROLLER
UC3843B CONTROLLERS
UC3842A CURRENT MODE PWM CONTROLLER
UC3842A CURRENT MODE PWM CONTROL CIRCUITS

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.

View original datasheet text
UNISONIC TECHNOLOGIES CO., LTD UC3842A/3843A LINEAR INTEGRATED CIRCUIT CURRENT MODE PWM CONTROL CIRCUITS  DESCRIPTION The UTC UC3842A/3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode, controlled switching circuits with minimal external components.  FEATURES *Low Start Up Current ( Typical 0.