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首页 > Products > Led Driver > AC/DC Conversion High Voltage LED Driver  > PWM Control Power >Cxac85206 is a high performance current mode PWM controller. Designed for cost-effective AC / DC converters. In the wide voltage range of 85v-265v, it can provide more than 18W continuous output power
Cxac85206 is a high performance current mode PWM controller. Designed for cost-effective AC / DC converters. In the wide voltage range of 85v-265v, it can provide more than 18W continuous output power

Cxac85206 is a high performance current mode PWM controller. Designed for cost-effective AC / DC converters. In the wide voltage range of 85v-265v, it can provide more than 18W continuous output power. Only one e13003 or other low-cost bipolar transistor with similar parameters packaged in to126 is used as the power switch device, which can save the overall cost of the product to the greatest extent. The power supply controller can work in a typical flyback circuit topology and form a simple AC / DC converter. The starting circuit inside the IC is designed as a unique current suction mode, which can use the amplification function of the power triode itself to complete the start-up, which significantly reduces the power consumption of the starting resistor; while when the output power is small, the IC will automatically reduce the working frequency, thus realizing a very low standby power consumption

Cxac85206 is a high performance current mode PWM controller. Designed for cost-effective AC / DC converters. In the wide voltage range of 85v-265v, it can provide more than 18W continuous output power
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1.产品概述       2.产品特点     Dd3嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)Dd3嘉泰姆

5.产品封装       6.电路原理图  Dd3嘉泰姆

7.相关产品Dd3嘉泰姆

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    CXAC85206是一款高性能电流模式PWM控制器。专为高性价比AC/DC转换器设计。在85V~265V的宽电压范围内提供高于18W的连续输出功率,仅需使用一颗TO126封装的E13003或类似参数的廉价双极性晶体管作为功率开关器件,最大程度上节约了产品的整体成本。该电源控制器可工作于典型的反激电路拓扑中,构成简洁的AC/DC转换器。IC内部的启动电路被设计成一种独特的电流吸入方式,可利用功率三极管本身的放大作用完成启动,这显著地降低了启动电阻的功率消耗;而在输出功率较小时IC将自动降低工作频率,从而实现了极低的待机功耗。在功率管截止时,内部电路将功率管基极反向偏置,直接利用了双极性晶体管的CB高耐压特性,大幅提高功率管的耐电压能力直到700V的高压,这保证了功率管的安全。IC内部还提供了完善的防过载防饱和功能,可实时防范过载、变压器饱和、输出短路等异常状况,提高了电源的可靠性。IC内部还集成了一个2.5V的电压基准,为时钟电路提供精确的供电电压,而时钟频率则可由外部定时电容进行设定。

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防过载防饱和设计,能及时防范过载、开关变压器饱和、输出短路等故障Dd3嘉泰姆

采用经济型三极管为开关管;同时利用其放大作用完成启动,并将启动电阻的功耗减少10倍以上Dd3嘉泰姆

内置斜坡补偿电路、热保护电路、斜坡电流驱动电路Dd3嘉泰姆

无输出功耗可小于0.3W,220Vac输入时可小于0.2WDd3嘉泰姆

封装形式: SOP8和DIP8Dd3嘉泰姆

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