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MCP1633 - Low-Side PWM Controller

Description

The MCP1633 High Speed PWM Controller is a pulsewidth modulator developed for standalone power supply applications.

The MCP1633 design is based on the MCP1632 PWM Controller but includes specific blocks for PWM LED dimming.

Features

  • High Speed Current Mode Pulse-Width Modulator (PWM) Controller.
  • Easy to Interface with PIC® Microcontroller for Implementing High-Performance LED Drivers.
  • Integrated General Purpose Operational Amplifier that can be Used for Current Sensing.
  • Internal Oscillator with Adjustable Frequency via External Resistor.
  • External Synchronization Option for the Oscillator.
  • Internal Slope Compensation Circuit.
  • Current Sense to VEXT Response.

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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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MCP1633 Low-Side PWM Controller with LED Dimming Capability Features • High Speed Current Mode Pulse-Width Modulator (PWM) Controller • Easy to Interface with PIC® Microcontroller for Implementing High-Performance LED Drivers • Integrated General Purpose Operational Amplifier that can be Used for Current Sensing • Internal Oscillator with Adjustable Frequency via External Resistor • External Synchronization Option for the Oscillator • Internal Slope Compensation Circuit • Current Sense to VEXT Response <120 ns Typical • Internal Leading Edge Blanking Circuit for Current Sense Input • Programmable Current Sense Offset • Internal Reference Voltage Generator • Soft Start Capability • Internal Push-Pull MOSFET Driver with 1A Peak Current Capability • Internal MOSFET Driver for Dimming/Load Di
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