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Применения > > MCP1662 Evaluation Board

MCP1662 Evaluation Board (ADM00555)

The MCP1662 LED Driver Evaluation Board is used to evaluate and demonstrate Microchip Technology’s MCP1662 product. This board demonstrates the MCP1662 in a boost-converter application supplied by two AA batteries, or from an external voltage source, which drives a string of LEDs with three selectable currents: 30 mA, 60 mA and 90 mA. The output current can be changed with a dual switch that changes the external LED current sense equivalent resistance (RSET). An enable switch is used to enable and disable the converter. When enabled, the MCP1662 will regulate the output current; when disabled, the current consumed from the battery by the device is typically less than 20 nA.


    • It can be powered by two-cell Alkaline, NiCd, NiMH or Lithium AA cell batteries
    • Input Voltage range (V IN ): 2.4V to 5.5V, with V IN < V OUT
    • Undervoltage Lockout: 2.3V to Start; 1.85V to Stop
    • Adjustable Output Current: 30 mA, 60 mA or 90 mA, selected using a dual switch on-board
    • PWM Switching Frequency: 500 kHz
    • Enable converter using switch on board
    • 1.3A Peak Input Current Limit
    • Overtemperature Protection (if the die temperature exceeds +150°C, with 15°C hysteresis)
    • Open Load Protection in case of: LED fail or FB disconnected/fault


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MCP1662 Evaluation Board ADM00555

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