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The white light LED driver circuit of high current

2014-11-06 20:02  
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The white light LED driver circuit of high current
The white light LED driver circuit of high current
The white light LED driver circuit of high current can be formed by LTC3215, and its output current of the drive white light LED is 700mA. It can switch automatically among the voltage-multiplying types of 1, 1.5 and 2 times, which can make LTC3215 get a high efficiency of 92% in the whole working voltage range of the lithium ion battery. The typical application circuit of LTC3215 is shown in figure 1 and its efficiency curve is shown in figure 2. Figure 1 The typical application circuit of LTC3215 Figure 2 the efficiency curve of LTC3215