供应LCD电源上用的8脚IC/LAF0001MX
交流-直流(AC-DC)控制器和稳压器> 离线控制器 > NCP1271 产品说明 The NCP1271 represents a new, pin to pin compatible, generation of the successful 7 pin current mode NCP12XX product series. The controller allows for excellent stand by power consumption by use of its adjustable Soft Skip mode and integrated high voltage startup FET. This proprietary Soft Skip also dramatically reduces the risk of acoustic noise. This allows the use of inexpensive transformers and capacitors in the clamping network. Internal frequency jittering, ramp compensation, timer based fault detection and a latch input make this controller an excellent candidate for converters where ruggedness and component cost are the key constraints. 特性 优势 Short Circuit Protection Independent of the Auxiliary Winding Efficient protective circuitry Adjustable Soft Skip Mode Provides improved efficiency at light loads and reduces the acoustic noise ...
ZHX1010介绍 ZHX1010是一个符号IrDA SIR(Serial Infrared,串行红外协议)的收发模块,该模块在1米范围内的速度可达115.2kbps。而且它的供电范围较宽(2.4~5.5V),可方便地与各种电压的CPU进行接口。 ZHX1010在3V供电时,其典型电流只有90μA,非常适用于电池供电产品。此外,ZHX1010体积小,仅有9.9mm×3.7mm,且其外围元件少(只需一个电阻和一个电容)。 ZHX1010有6个引脚,依次是LEDA、TXD、RXD、SD、Vcc和GND。LEDA内部与IRED红外发光二极管相连,外部接一限流电阻到Vcc,以给红外管提供工作电流。但应注意提供的电流不能超过500mA(20%的占空比)。TXD是数据发送引脚,该脚内部带有下拉电阻,可以直接接到MCU的数据发送端,当器件进入省电模式时,该下拉电阻开路。RXD是接收到红外数据后的输出脚,它是一个三态输出引脚,摆率控制的CMOS输出驱动器可驱动标准CMOS或LSTTL负载。该引脚无需外接电阻。SD是省电模式控制脚,该引脚输入高电平时,ZHX1010进入省电模式,此时的电流只有1μA。