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LT3517,pdf,datasheet (Full-Fea

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  • 上传时间:2021-10-12
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  • 标      签: driver LED

资 源 简 介

The LT3517 is a current mode DC/DC converter with aninternal 1.5A, 45V switch specifi cally designed to driveLEDs. The LT3517 operates as a LED driver in boost, buckmode and buck-boost mode. It combines a tradiTIonalvoltage loop and a unique current loop to operate asa constant-current source or constant-voltage source.Programmable switching frequency allows opTImizaTIon ofthe external components for effi ciency or component size.The switching frequency of LT3517 can be synchronizedto an external clock signal. The LED current is externallyprogrammable with a 100mV sense resistor. The externalPWM input provides up to 5000:1 LED dimming. The CTRLpin provides further 10:1 dimming raTIo.
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