非隔离降压型 LED 恒流驱动芯片

TM0822A是一款高精度的单通道LED恒流驱动控制芯片，集成了高压整流管和JFET高压供电功能。可以通过外部电阻精确的设定LED电流。本芯片还具有过温调节功能，当输入电压过高，或者LED电流过大时，此功能将降低输出电流。由于不需要磁性元件，LED驱动器可以实现小体积、长寿命、并符合EMI规定。应用系统结构简单，外围元件极少，方案成本低。主要用于驱动由市电供电的高电压、低电流LED灯串，例如LED球泡灯、LED吸顶灯、射灯、LED蜡烛灯等LED照明产品。本产品性能优良，质量可靠。 • 外围电路非常简单，驱动器体积小\n• 无需磁性元件\n• 500V高压MOS管，无需压敏电阻\n• 超快LED启动\n• ±5%LED输出电流精度\n• LED电流可由外部电阻设定\n• 过温调节功能\n• 封装形式：TO252-3、SOT89-3封装\n;

TM

天微

8-Bit ADCs with Serial Interface and Differential or Dual Inputs

Description WM0831 and WM0832 are 8-bit analogue to digital converters (ADC) with serial I/O interfaces, providing a choice of input configurations in 8-pin SO or DIP packages. WM0831 has a differential input, also configurable as a single ended input. A-D conversion results are serially output o

文件：535.5 Kbytes 页数：14 Pages

WOLFSONWolfson Microelectronics plc

欧胜欧胜微电子股份有限公司

8-Bit ADCs with Serial Interface and Differential or Dual Inputs

Description WM0831 and WM0832 are 8-bit analogue to digital converters (ADC) with serial I/O interfaces, providing a choice of input configurations in 8-pin SO or DIP packages. WM0831 has a differential input, also configurable as a single ended input. A-D conversion results are serially output o

文件：535.5 Kbytes 页数：14 Pages

WOLFSONWolfson Microelectronics plc

欧胜欧胜微电子股份有限公司

8-Bit ADCs with Serial Interface and Differential or Dual Inputs

Description WM0831 and WM0832 are 8-bit analogue to digital converters (ADC) with serial I/O interfaces, providing a choice of input configurations in 8-pin SO or DIP packages. WM0831 has a differential input, also configurable as a single ended input. A-D conversion results are serially output o

文件：535.5 Kbytes 页数：14 Pages

WOLFSONWolfson Microelectronics plc

欧胜欧胜微电子股份有限公司