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MIC38C42 - BiCMOS Current-Mode PWM Controllers

General Description

The MIC38C4x are fixed-frequency, high performance, current-mode PWM controllers.

Microchip’s BiCMOS devices are pin compatible with 384x bipolar devices, but feature several improvements.

Key Features

  • Fast 40 ns Output Rise and 30 ns Output Fall Times.
  • 40°C to +85°C Ambient Temperature Range Meets UC284x Specifications.
  • High-Performance, Low-Power BiCMOS Process.
  • Ultra-Low Start-Up Current (50 μA Typical).
  • Low Quiescent Operating Current (4 mA Typical).
  • CMOS Outputs with Rail-to-Rail Swing.
  • Up to 500 kHz Current-Mode Operation.
  • Trimmed 5V Bandgap Reference.
  • Pin-for-Pin Compatible with UC3842/3843/3844/3.

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📁 Similar 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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MIC38C42/43/44/45 BiCMOS Current-Mode PWM Controllers Features • Fast 40 ns Output Rise and 30 ns Output Fall Times • –40°C to +85°C Ambient Temperature Range Meets UC284x Specifications • High-Performance, Low-Power BiCMOS Process • Ultra-Low Start-Up Current (50 μA Typical) • Low Quiescent Operating Current (4 mA Typical) • CMOS Outputs with Rail-to-Rail Swing • Up to 500 kHz Current-Mode Operation • Trimmed 5V Bandgap Reference • Pin-for-Pin Compatible with UC3842/3843/3844/3845(A) • Trimmed Oscillator Discharge Current • UVLO with Hysteresis • Low Cross-Conduction Currents Applications • Current-Mode, Offline, Switched-Mode Power Supplies • Current-Mode, DC-to-DC Converters • Step-Down Buck Regulators • Step-Up Boost Regulators • Flyback, Isolated Regulators • Forward Converters • Syn