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UC3843A-Q - PWM CONTROLLER

Description

The UTC UC3843A-Q provide the necessary functions to implement off-line or DC to DC fixed frequency current mode, controlled switching circuits with minimal external components.

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.

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Full PDF Text Transcription

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UNISONIC TECHNOLOGIES CO., LTD UC3843A-Q Preliminary LINEAR INTEGRATED CIRCUIT CURRENT MODE PWM CONTROL CIRCUITS  DESCRIPTION The UTC UC3843A-Q 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 0.12mA ) *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  ORDERING INFORMATION Ordering Number Lead Free Halogen Free UC3843AL-S08-R UC3843AP-S08-R Package SOP-8 SOP-8 Packing Tape Reel  MARKING www.unisonic.com.
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