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Mikroe Mikroe-2807 LED Driver 2 click

Mikroe Mikroe-2807 LED Driver 2 click is based on the Microchip Technology MCP1643 1MHz Synchronous Boost LED Regulator. The MCP1643 is a compact, high-efficiency, fixed frequency, synchronous step-up converter, optimized to drive one LED with a constant current. It can be powered by a two-cell alkaline, NiMH, or NiCd battery (2.4V), or via the mikroBUS™ power supply pins. The LED Driver 2 click also features 3W high-power LED by QT-Brightek. This LED can be dimmed by applying the variable duty cycle PWM signal to the EN pin of the MCP1643 Regulator through the PWM pin of the mikroBUS.

The onboard VIN SEL SMD jumper offers the selection of the input voltage source: it can be set to use a two-cell NiMH battery connected to VIN terminal (2.4V), or the power supply pin from the mikroBUS™. The voltage from the mikroBUS™ can be set with the VCCIO SMD jumper to either 5V or 3.3V. Since the forward voltage on the high power LED is 3.2V, the click board comes equipped with the MCP1826, an LDO regulator by Microchip, which is used to drop the selected mikroBUS™ voltage down to around 2.4V so that the MPC1643 input voltage requirements are met. 

Features

  • MCP1643 Synchronous Boost LED Regulator
  • 1.6A typical peak input current limit
  • Up to 550mA LED load current
  • Dimming control by variable duty cycle
  • Overvoltage protection
  • Overtemperature protection
  • Selectable input voltage of 3.3V or 5V
  • Click board size L (57.15mm x 25.4mm)

Applications

  • Portable LED lighting products
  • LED flashlights and headlamps
  • Rechargeable flashlights
  • General LED constant current applications

Resources

Videos

On The Board

Microchip Technology MCP16431MHz Synchronous Boost LED Regulator

Optimized for driving one LED with constant current or two red/green/yellow series connection LEDs.

Learn Moretungkol sa Microchip Technology MCP16431MHz Synchronous Boost LED Regulator View Productskaugnay ng Microchip Technology MCP16431MHz Synchronous Boost LED Regulator

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Board Layout

Mikroe Mikroe-2807 LED Driver 2 click
Inilathala: 2017-12-20 | Na-update: 2022-07-11