HPF隔离

MT7937是一个单级、高功率因数，原边控制交流转直流LED驱动芯片。MT7937集成片上功率因数校正（PFC）功能，在临界导通模式下运行，能实现高功率因数并减少功率MOS管开关损耗。利用创新的控制技术，无需光耦及副边感应器件就可以精确地调制LED电流。\n\nMT7937同时实现了各种保护功能，包括输入过压/欠压保护、过流保护（OCP）输出过压保护 （OVP）、输出短路保护（SCP）和过温调节（OTR）等，以确保系统可靠的工作。同时，MT7937的过温调节设置引脚TADJ，可以通过连接外部电阻来灵活设置温度调节的阈值点。 • 单级有源PFC实现了高功率因数• 内置积分器（无外置COMP电容）\n• 内置THD补偿电路\n• 内置线电压补偿\n• 原边感应机制，无需光耦\n• 高精度LED电流：±5%\n• 临界导通模式运行\n• 每周期峰值电流控制\n• 具有各种保护功能以及自动恢复功能：输入过压/欠压保护、过流保护、输出过压/开路保护、输出短路保护\n• 具有过温调节引脚，温度调节阈值可调\n• 具有软启动功能\n• SOP8封装;

LC2MOS 84 Loading Dual 12-Bit DAC

GENERAL DESCRIPTION The AD7937 contains two 12-bit current output DACs on one monolithic chip. A separate reference input is provided for each DAC. The dual DAC saves valuable board space, and the monolithic construction ensures excellent thermal tracking. Both DACs are guaranteed 12-bit monotoni

LC2MOS 84 Loading Dual 12-Bit DAC

GENERAL DESCRIPTION The AD7937 contains two 12-bit current output DACs on one monolithic chip. A separate reference input is provided for each DAC. The dual DAC saves valuable board space, and the monolithic construction ensures excellent thermal tracking. Both DACs are guaranteed 12-bit monotoni

Single Supply 2.5Gb/s Voltage Driver

General Description The VSC7937 is a single -5.2V supply, 2.5Gb/s voltage driver with direct access to the output modulation and bias FETs. The output stage can drive 60mA into 50Ω with adequate output voltage compliance. Output bias and modulation currents are set by external components allowing

Single Supply 2.5Gb/s Voltage Driver

General Description The VSC7937 is a single -5.2V supply, 2.5Gb/s voltage driver with direct access to the output modulation and bias FETs. The output stage can drive 60mA into 50Ω with adequate output voltage compliance. Output bias and modulation currents are set by external components allowing

Single Supply 2.5Gb/s Voltage Driver

General Description The VSC7937 is a single -5.2V supply, 2.5Gb/s voltage driver with direct access to the output modulation and bias FETs. The output stage can drive 60mA into 50Ω with adequate output voltage compliance. Output bias and modulation currents are set by external components allowing