目录
一,产品概述(General Description) ![]() The JTM2804 is a high-efficiency buck constant-current LED driver, designed for driving single or multiple series connected LED efficiently. The device operates from an input supply between 0V and 5.5V and provides an externally adjustable output current of up to 700mA. Depending upon the supply voltage and external components, the JTM2804 can drive 3 watts of LED. The JTM2804 includes the power switch which operating frequency up to 1.4MHz. TheJTM2804 package.is available in SOT-23-5L 二.产品特点(Features) ![]() Input voltage range: 0V to 5.5V Programmable LED Drive Current : up to 700mA Operating Frequency: 1.4MHz Quiescent Current: 320uA High efficiency (up to 93%) Low Profile SOT-23-5L Package (lead-free packaging is now available) 三,应用范围 (Applications) ![]() Automotive lighting Low voltage industrial lighting LED back-up lighting Constant Current Source RGB High Brightness LED lighting 四.技术规格书下载(产品PDF) ![]()
五,产品封装图 (Package) ![]() ![]()
六.电路原理图 ![]() ![]() 七,功能概述 ![]() Supply Voltage………………………………………………………………..........….….−0.3V to 6.5V SW Pin Voltage……………………...………………………..…….…….......................−0.3V to 6.5V Other I/O Pin Voltages……………………….………...…………………...…−0.3V to (VDD + 0.3V) SW Pin Current ……………………….………….………..…....…………………………………..1.3A Operating Junction Temperature……….……………………………......……………………. 125°C Storage Temperature Range……………………………………..….……………… −65°C ~ +150°C Lead Temperature (Soldering 10 sec) ….…………………………......………………………. 300°C 八,相关芯片选择指南 ![]()
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