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FAN5607 - LED Driver

General Description

The FAN5607 generates regulated output current from a battery with input voltage varying between 2.7V to 5.5V.

Switch reconfiguration and fractional switching techniques are utilized to achieve high efficiency over the entire input voltage range.

Key Features

  • Parallel LED Driver Supports all Forward Voltages Adaptive VOUT Adjustment to the Highest Diode Voltage Internally Matched LED Current Sources Built-in Charge Pump has Three Modes of Operation:.
  • 1X, 1.5X, and 2X Mode Up to 93% Efficiency Low EMI, Low Ripple Up to 120mA Output Current ( 4 × 30 mA ) External Resistor to Se.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.fairchildsemi.com FAN5607 LED Driver with Adaptive Charge Pump DC/DC Converter Features • • • • • • • • • • • • • • • • • Parallel LED Driver Supports all Forward Voltages Adaptive VOUT Adjustment to the Highest Diode Voltage Internally Matched LED Current Sources Built-in Charge Pump has Three Modes of Operation: – 1X, 1.5X, and 2X Mode Up to 93% Efficiency Low EMI, Low Ripple Up to 120mA Output Current ( 4 × 30 mA ) External Resistor to Set Maximum (100%) LED Current Enable Input Can be Duty-Cycle-Modulated to Control LED Current Level Between 0 and 100% 2.4V to 5.