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UC3843A Datasheet Current Mode Pwm Control Circuits

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD UC3842A/3843A LINEAR INTEGRATED CIRCUIT CURRENT MODE PWM CONTROL CIRCUITS.

This datasheet includes multiple variants, all published together in a single manufacturer document.

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.

UC3843A Distributor