QuickView - MAX16800 고전압, 350mA, 가변 선형 고휘도 LED (HB LED) 드라이버


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MAX16800 고전압, 350mA, 가변 선형 고휘도 LED (HB LED) 드라이버

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The MAX16800 current regulator operates from a 6.5V to 40V input voltage range and delivers up to a total of 350mA to one or more strings of high-brightness LEDs. The output current of the MAX16800 is adjusted by using an external current-sense resistor in series with the LEDs. An enable input allows wide-range "pulsed" dimming. Wave-shaping circuitry reduces EMI. The differential current-sense input increases noise immunity. The MAX16800 is well suited for applications requiring high-voltage input and is able to withstand automotive load-dump events up to 40V. An on-board pass element minimizes external components while providing ±3.5% output current accuracy. Additional features include a 5V regulated output and short-circuit and thermal protection.

The MAX16800 is available in a thermally enhanced, 5mm x 5mm, 16-pin TQFN package and is specified over the automotive -40°C to +125°C temperature range.

The MAX16835 is a newer and more cost effective product that provides the same performance and is pin-to-pin compatible with the MAX16800.

주요기능 애플리케이션/용도

+6.5V to +40V Operating Range
Adjustable Level (35mA to 350mA)
±3.5% Output Current Accuracy
Integrated Pass Element with Low-Dropout Voltage (0.5V typ)
Output Short-Circuit Protection
+5V Regulated Output with 4mA Source Capability
Thermal Shutdown
Differential LED Current Sense
High-Voltage Enable Pin for Dimming Interface
Low Shutdown Supply Current (12&µA typ)
Low 204mV Current-Sense Reference Reduces Power Losses
Wave-Shaped Soft Edges Reduce Radiated EMI During PWM Dimming
Available in Small, Thermally Enhanced, 5mm x 5mm, 16-Pin TQFN Package
-40°C to +125°C Operating Temperature Range

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