APFC非隔离AC-DC

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。\n\nMT7865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( • 内置600V高压MOSFET\n• 单级有源功率因数校正 (PFC > 0.90)\n• LED 电流精度高 (±3%)\n• 优异的线性调整度和负载调整度(±2%)\n• 准谐振工作模式 (QRM)\n• 多重保护机制\n• PWM 调光 (100:1)\n• 封装: DIP8;

Maxic

美芯晟

PWM Dimmable APFC BUCK LED Driver

文件：185.15 Kbytes 页数：1 Pages

MAXIC

美芯晟

Area Array Charge-Coupled Device(CCD) Image Sensors

文件：841.98 Kbytes 页数：7 Pages

ETCList of Unclassifed Manufacturers

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Four-Channel, Simultaneous Sampling, Fast, 14-Bit ADC

GENERAL DESCRIPTION The AD7865 is a fast, low power, four-channel simultaneous sampling 14-bit A/D converter that operates from a single 5 V supply. The part contains a 2.4 µs successive approximation ADC, four track/hold amplifiers, 2.5 V reference, on-chip clock oscillator, signal conditioning

文件：195.34 Kbytes 页数：19 Pages

AD

亚德诺

Four-Channel, Simultaneous Sampling, Fast, 14-Bit ADC

GENERAL DESCRIPTION The AD7865 is a fast, low power, four-channel simultaneous sampling 14-bit A/D converter that operates from a single 5 V supply. The part contains a 2.4 µs successive approximation ADC, four track/hold amplifiers, 2.5 V reference, on-chip clock oscillator, signal conditioning

文件：197.75 Kbytes 页数：19 Pages

AD

亚德诺

Four-Channel, Simultaneous Sampling, Fast, 14-Bit ADC

GENERAL DESCRIPTION The AD7865 is a fast, low power, four-channel simultaneous sampling 14-bit A/D converter that operates from a single 5 V supply. The part contains a 2.4 µs successive approximation ADC, four track/hold amplifiers, 2.5 V reference, on-chip clock oscillator, signal conditioning

文件：197.75 Kbytes 页数：19 Pages

AD

亚德诺