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The MCP1633-E/MG PWM (Pulse Width Modulation) controllers with dimming are fixed frequency current mode controllers that can be used as standalone LED drivers. The controllers feature current mode for non-V and voltage mode for V. The MCP1633-E/MG controllers are equipped with an integrated overvoltage comparator, low-side MOSFET driver, and battery current and voltage amplifiers. The controllers feature internal thermal and undervoltage lockout protection.

Features

Current mode for non-V-shape and voltage mode for V-shape

Fixed frequency peak current mode PWM controller

Used as a stand-alone LED driver

Integrated overvoltage comparator

Integrated low-side MOSFET driver

Integrated Battery Current and Battery Voltage Amplifiers

Integrated thermal protection

Undervoltage lockout (UVLO)

Specification

±3% tolerance (typical)

0.99% duty cycle (max)

200kHz to 2.2MHz oscillator frequency range

0.1MHz to 2.5MHz external synchronisation frequency range

3V UVLO threshold with 100mV hysteresis (max)

1.23V OVP default threshold

3mm x 3mm 16-pin QFN package

Applications

LED drivers

Switch-mode power supplies

Brick DC-DC Converters

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