85737 Ismaning, de
+49 (7131) 9234-0
Quad LED Driver Drives up to 32 1A LEDs & Offers 1000:1 True Color PWMTM Dimming
The LT3476 senses output current at the high side of the LED, enabling buck, buck-boost or boost configurations. With an external sense resistor, the user programs the output current range of each channel. Each of the 4 independent driver channels utilizes an internal 1.5A, 36V NPN switch. Other features include open LED protection and thermal limiting.
The LT3476EUHF is available from stock in a thermally enhanced 38-lead 5mm x 7mm DFN package. 1,000-piece pricing starts at $4.64 each and the device is available from stock.
Photo Caption: 100 Watt LED Driver
Summary of Features: LT3476EUHF
• True Color PWMTM Dimming Delivers Up to 1000:1 Dimming Ratio
• LED Current Regulation with High-Side Sense
• VADJ Pin Accurately Sets LED Current Sense Threshold Over Range 10mV to 120mV
• Four Independent Driver Channels with 1.5A, 36V Internal NPN Switches
• Frequency Adjust Pin: 200kHz to 2MHz
• High Efficiency Conversion - Up to 96%
• Open LED Protection
• Low Quiescent Current
22mA in Active Mode
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