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MAX16812 - Integrated High-Voltage LED Driver

General Description

The MAX16812 is a peak-current-mode LED driver with an integrated 0.2Ω power MOSFET designed to control the current in a single string of high-brightness LEDs (HBLEDs).

The MAX16812 can be used in multiple converter topologies such as buck, boost, or buck-boost.

Key Features

  • ntegrated 76V, 0.2Ω (typ) Power MOSFET 5.5V to 76V Wide Input Range Adjustable LED Current with 5% Accuracy Floating Differential LED Current-Sense Amplifier Floating Dimming N-Channel MOSFET Driver PWM LED Dimming with: PWM Control Signal Analog Control Signal Chopped VIN Input Peak-Current-Mode Control 125kHz to 500kHz Adjustable Switching Frequency Adjustable UVLO and Soft-Start Output Overvoltage Protection 5µs LED Current Rise/Fall Times During Dimming Minimize EMI Overtemperature and Short.

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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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19-0880; Rev 0; 7/07 www.DataSheet4U.com Integrated High-Voltage LED Driver with Analog and PWM Dimming Control General Description The MAX16812 is a peak-current-mode LED driver with an integrated 0.2Ω power MOSFET designed to control the current in a single string of high-brightness LEDs (HBLEDs). The MAX16812 can be used in multiple converter topologies such as buck, boost, or buck-boost. The MAX16812 operates over a 5.5V to 76V wide supply voltage range. The MAX16812 features a low-frequency, wide-range brightness adjustment (100:1), analog and PWM dimming control input, as well as a resistor-programmable EMI suppression circuitry to control the rise and fall times of the internal switching MOSFET.