Mikroe Mikroe-2807 LED Driver 2 Click
MikroElektronika Mikroe-2807 LED Driver 2 Click에는 LED 정전류 레귤레이터인 MCP1643이 장착됩니다. 이 LED 드라이버는 3W 고전력 LED가 있고 LED 디밍 옵션을 제공합니다. Mikroe-2807 Click은 비교적 높은 정전류 구동 기능과 출력 전압에 대한 과전압 보호 기능이 특징입니다. 이 LED 드라이버는 무게가 25g이고 출력 전압을 5V로 제한하는 과열 보호 기능을 제공합니다. Mikroe-2807 Click은 휴대용 LED 조명 제품, LED 플래시라이트, 헤드램프, 충전식 플래시라이트 및 범용 LED 정전류 애플리케이션과 같은 애플리케이션에 매우 적합합니다.
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.
특징
- 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)
애플리케이션
- Portable LED lighting products
- LED flashlights and headlamps
- Rechargeable flashlights
- General LED constant current applications
자료
비디오
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.
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Board Layout
