电流模式PWM控制器适用于正激和反激电源

是一款高性价比电流模式 PWM 控制器，适合于中、大等功率反激电源方案以及正激电源方案。内置抖频功能，具有优良的 EMI 特性。芯片采用打嗝模式控制轻负载和零负载。内置有完备的保护功能：VCC 欠压保护（UVLO）、VCC 过压保护（VOP）、逐周期电流限制、输入欠压保护、过载保护、过热保护、软启动等 • 优良的 EMI 特性\n• 外围器件少\n• 外置 NTC 温度保护功能\n• 输入欠压保护\n• 光耦开路保护\n• 最大占空比 50%\n• 电流模式控制\n• 外置电阻可设 PWM 频率\n• 打嗝模式控制\n• 逐周期电流限制\n• 内置前沿消隐\n• 低启动电流\n• 封装形式 SOP8;

Threshold detector and reset generator

GENERAL DESCRIPTION The PCF1252-Xs are low-power CMOS voltage threshold detectors designed especially for supervision of microcontroller/microprocessor systems for detection of power-on/off conditions and generation of a system reset pulse. The PCF1252-X also provides a POWF (power fail) output w

Threshold detector and reset generator

GENERAL DESCRIPTION The PCF1252-Xs are low-power CMOS voltage threshold detectors designed especially for supervision of microcontroller/microprocessor systems for detection of power-on/off conditions and generation of a system reset pulse. The PCF1252-X also provides a POWF (power fail) output w

Threshold detector and reset generator

GENERAL DESCRIPTION The PCF1252-Xs are low-power CMOS voltage threshold detectors designed especially for supervision of microcontroller/microprocessor systems for detection of power-on/off conditions and generation of a system reset pulse. The PCF1252-X also provides a POWF (power fail) output w

CCD LINEAR IMAGE SENSOR

The TCD1252AP is a high sensitive and low dark current 2700−elements linear image sensor. The sensor can be used for facsimile, imagescanner and OCR. The device contains a row of 2700 photodiodes, which provide a 8 lines / mm (200 DPI) across a A3 size paper and a 12 lines / mm (300DPI) across a A

CCD LINEAR IMAGE SENSOR

The TCD1252AP is a high sensitive and low dark current 2700−elements linear image sensor. The sensor can be used for facsimile, imagescanner and OCR. The device contains a row of 2700 photodiodes, which provide a 8 lines / mm (200 DPI) across a A3 size paper and a 12 lines / mm (300DPI) across a A