Компания Maxim Integrated Products представила MAX16816 – высоковольтный, программируемый драйвер светодиодов (LED) высокой яркости для применения в автоэлектронике и других областях. MAX16816 отвечает современным требованиям, предъявляемым к последним разработкам в области систем головного освещения автомобилей, например, адаптивный головной свет, системы дневного света и противотуманные фары [англ.]
The device is also well-suited for high-power flood lighting, down lighting, and projection systems that require high-current LED drive capabilities. The MAX16816’s ability to program LED current eliminates the need for binning LEDs according to their brightness variations. By allowing LED current adjustment, the MAX16816 compensates for brightness variations during manufacturing.
The MAX16816 operates from a 5.4V to 76V input voltage range, ensuring cold-start and load-dump (up to 80V) compliance. High-voltage capability improves the reliability of the LED lamp/driver combo. The MAX16816 provides many user-programmable features through on-chip nonvolatile EEPROM registers. Using a microcontroller and a single-wire interface, the programming is done either at the factory or by the designer in the field.
The MAX16816 integrates all the building blocks necessary to implement fixed-frequency HB LED drivers with wide-range dimming control. It is configurable to operate as a step-down (buck), step-up (boost) or step-up/down (buck-boost) current regulator. The device also includes an integrated, differential current-sense amplifier and a floating dimming driver capable of driving an n-channel MOSFET.
The MAX16816ATJ+ is rated for the -40°C to +125°C automotive temperature range. It is available in a lead-free, 32-pin TQFN package with exposed pad.
Pricing: Starts at $2.33 (1000-up, FOB USA).
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