Microchip Technology MCP1633 PWM Controllers with Dimming

Microchip Technology MCP1633 PWM (Pulse Width Modulation) Controller with Dimming is a fixed frequency current mode controller and can be used as a standalone LED driver. This controller employs the current mode for the non-V and the voltage mode for the V version. The MCP1633 controller has an integrated overvoltage comparator, low-side MOSFET driver, and battery current and battery voltage amplifiers. This controller offers internal over-temperature protection and under-voltage lockout protection.

Features

  • Current mode for non-V and voltage mode for V version
  • Fixed frequency peak current mode PWM controller
  • Acts as a standalone LED driver
  • Integrated over-voltage comparator
  • Integrated low side MOSFET driver
  • Integrated battery current and battery voltage amplifiers
  • Integrated over temperature protection
  • Under-Voltage Lock-Out (UVLO)

Specifications

  • ±3% tolerance (typical)
  • 0.99% duty cycle (max)
  • 200kHz to 2.2MHz oscillator frequency range
  • 0.1MHz to 2.5MHz external synchronous frequency range
  • 3V UVLO threshold with 100mV hysteresis (max)
  • 1.23V OVP default threshold
  • 3mm x 3mm 16-pin QFN package
Publicado: 2019-01-22 | Actualizado: 2023-06-19