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About MT7865

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Product ID :
Product number :
MT7865
Agency brand :
RT (Rich Rich)
Product price :
¥0.00

Product Category

  • Introduction of production line
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Introduction of production line

MT7865是一款高功率因数降压型LED驱动芯片。工作在准谐振模式(QRM),大大降低了电流和电压的应力,同时使效率和抗电磁干扰的性能都得到提升。利用美芯晟特有的准全周期检测专利技术对LED输出电流进行检测,确保了LED输出电流的精度。

MT7865通过解码PWM信号实现调节LED电流,从而实现智能调光。通过内部微调解码器实现LED电流的高精度和一致性。尤其在调光等级较低时,PWM控制方法从准谐振模式无缝地转入脉冲频率调制模式(PFM),从而保证了较小的输出电流和低开关损耗。

另外,MT7865同时实现了各种保护功能,包括LED开路保护(OVP)、逐周期过流保护(OCP)、LED短路保护(SCP)和过温补偿等,以确保系统可靠地工作。

主要特点

内置600V高压MOSFET

单级有源功率因数校正 (PF> 0.90)

高精度LED电流 (±3%)

优异的线性和负载调整度(±2%)

准谐振工作模式 (QRM)

多重保护机制

PWM 调光(100:1)

DIP8封装

需要详细资料,请致电0755-36564378 18565735175

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