CXAC8508 CXAC8508B脉宽调制控制器和650V的高压功率MOSFET极低的启动电流电流传感前沿消隐内部斜坡补偿逐周峰值限流和软启动

CXAC8508 CXAC8508B集成了一个脉宽调制控制器和650V的高压功率MOSFET，CXAC8508 CXAC8508B具有极低的启动电流和电流模式的脉宽调制控制，在轻载时具有绿色模式功能。CXAC8508 CXAC8508B的集成功能还包括电流传感前沿消隐、内部斜坡补偿、逐周峰值限流和软启动。OCP、OVP和OLP提供故障条件下的保护性能。这些功能使电源很容易满足最严格的电源要求。CXAC8508 CXAC8508B提高了性能并降低了电源的成本
●电流模式脉宽调制
●启动电流很低
●欠压闭锁（UVLO）
●非可听噪声绿色模式控制
固定65KHz开关频率
●逐周期峰值电流限制
●内部前缘下料
●内部坡度补偿
●节电小于0.1W
●VCC引脚上的过电压保护（OVP）
过载保护（OLP）

目录

• 1.产品概述       2.产品特点     

• 3.应用范围       4.技术规格书下载（PDF文档）

• 5.产品封装       6.电路原理图  

• 7.相关产品

   产品概述 返回TOP

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CXAC8508 CXAC8508B integrates a PWM controller and high voltage power MOSFET of 650V. CXAC8508 CXAC8508B has the features of very low startup current and current mode PWM control with green-mode function at light load. The integrated functions of CXAC8508 CXAC8508B also include the leading-edge blanking of the current sensing, internal slope compensation, cycle-by--cycle peak current limiting and soft start. OCP, OVP and OLP provide protection performance for fault conditions. These functions enable the power supply to easily meet even the strictest power requirements. CXAC8508 CXAC8508Bimproves the performance and reduces the cost of power supplies.

   产品特点 返回TOP

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●Current Mode PWM 

●Very low startup current 

●Under-Voltage Lockout (UVLO) 

●Non-Audible-Noise Green-Mode control 

●Fixed 65KHz Switching Frequency 

●Cycle-by-Cycle peak current limiting 

●Internal leading-edge blanking 

●Internal slope compensation 

●Less than 0.1W of power saving 

●Over-voltage protection (OVP) on VCC pin 

●Over-load protection (OLP) 

● Available in DIP8 package

   应用范围 返回TOP

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●Switching AC/DC Power battery charge 

●Digital cameras 

●PDA power supply 

●Open-frame SMPS

   技术规格书（产品PDF) 返回TOP 

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     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

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电路原理图 返回TOP

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Small& Medium Power Controller (中小功率控制芯片)
Part Number	Power	Power	Standby	MODE	Freq	Accu	OTP/	Package
	(80-265V)	(175-265V)	(mW)	(Flyback)	(KHz)		OVP
CXAC8501	10W	12W	≤300	PFM	65	±1%	-/ Y	TO92
CXAC8502	15W	18W	≤200	PWM	45-80 ADJ	±1%	Y/ Y	DIP8
CXAC8503	15W	18W	≤150	PWM	45-80 ADJ	±1%	-/ Y	DIP8
CXAC8504	12W	18W	≤150	PWM	45-80/ADJ	±1%	Y/ Y	DIP8
CXAC8505	5W	7W	≤150	PWM	45-80/ADJ	±5%	Y/ Y	SOP8/ESOP8
CXAC8506A	15W	18W	≤100	PWM	65	±1%	-/ Y	DIP8
CXAC8506B	15W	18W	≤100	PWM	65	±1%	-/ Y	DIP8
CXAC8506C	15W	18W	≤100	PWM	65	±1%	-/ Y	DIP8
CXAC8507A/B	15W	18W	≤100	PWM	65	±1%	Y/ Y	DIP8
CXAC8508	15W	18W	≤100	PWM	65	±1%	Y/ Y	DIP8
CXAC8508B	15W	18W	≤100	PWM	65	±1%	Y/ Y	DIP8
CXAC8509	18W	24W	≤100	PWM	65	±1%	Y/ Y	DIP8
CXAC8510	12W	18W	≤100	PWM	60	±1%	Y/ Y	DIP8
CXAC8511	12W	18W	≤100	PWM	60	±1%	Y/ Y	DIP8
CXAC8512	18W	24W	≤100	PWM	65	±1%	Y/ Y	DIP8
CXAC8556	15W	18W	≤100	QR	90	±1%	Y/ Y	DIP7
CXAC8557	12W	18W	≤100	PWM	60	±1%	Y/ Y	DIP8