电流模式和固定频率升压转换器CXSU63170输入电压从2.7伏到6伏集成N-FET来驱动白色LED低导通电阻和低反馈电压降低了功率损耗 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP The CXSU63170 is a current-mode and fixed frequency boost converter with an integrated N-FET to drive white LEDs. The series connection allows the LED current to be identical for uniform brightness. Its low on-resistance of NFET and low feedback voltage reduce power loss and achieve high efficiency. Fast switching frequency(1.5MHz typical) allows using small-size inductor and both of input and output capacitors. An over voltage protection function,which monitors the output voltage via OVP pin, stops switching of the IC if the OVP voltage exceeds the over voltage threshold. An internal soft-start circuit eliminates the inrush current during start-up. The CXSU63170 also integrates under-voltage lockout, overtemperature protection, and current limit circuits to protect the IC in abnormal conditions. The CXSU63170 is available in a SOT-23-6A产品特点 返回TOP Wide Input Voltage from 2.7V to 6V Fixed 1.5MHz Switching Frequency Reference Voltage : 0.2V PWM Brightness Control with Wide Frequency Range of 100Hz to 100kHz Build-In Power MOSFET : 0.2Ω Open-LED Protection Under-Voltage Lockout Protection Over-Temperature Protection <1mA Quiescent Current during Shutdown SOT-23-6A Halogen and Lead Free Available RoHS Compliant 应用范围 返回TOP White LED Display Backlighting Cell Phone and Smart Phone PDA, PMP, MP3 Digital Camera 技术规格书(产品PDF) 返回TOP 需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持!
产品封装图 返回TOP 电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
|