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首页 > Products > Battery Charging Chip > Charger Adapter Chip > Power Adapter Chip >Cxch7694 is a high precision isolated flyback AC-DC controller, suitable for small power chargers and adapters. It works in the original edge feedback mode without optocoupler and TL431
Cxch7694 is a high precision isolated flyback AC-DC controller, suitable for small power chargers and adapters. It works in the original edge feedback mode without optocoupler and TL431

Cxch7694 is a high precision isolated flyback AC-DC controller, suitable for small power chargers and adapters. It works in the original edge feedback mode without optocoupler and TL431. It can work in constant current or constant voltage mode through different application circuits. In the constant current mode, the output current can be adjusted by setting the resistance of CS pin to the ground; in the constant voltage mode, the output voltage can be set by setting the output partial voltage resistance of the auxiliary winding of the transformer; in addition, the output voltage line loss compensation circuit is set inside the chip, and the appropriate line loss compensation can be obtained by adjusting the resistance value of the partial voltage resistance. Cxch7694 provides soft start and various protection mechanisms, including power tube current limiting mode, power voltage over-voltage protection, power voltage under voltage protection, and power clamp circuit

Cxch7694 is a high precision isolated flyback AC-DC controller, suitable for small power chargers and adapters. It works in the original edge feedback mode without optocoupler and TL431
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   产品概述 返回TOPzLX嘉泰姆


CXCH7694是一款高精度隔离型反激式 AC-DC 控制器,适用于小功率的充电器和 适配器等。其工作在原边反馈模式,无需 光耦和 TL431。通过不同的应用电路可使 其工作在恒流或者恒压模式。 在恒流模式下,输出电流可通过设置 CS 引脚对地的电阻来调节;在恒压模式 下,可通过设置变压器辅助绕组输出分压 电阻来设定输出电压;另外芯片内部设置 了输出电压线损补偿电路,可通过调节分 压电阻的阻值来得到合适的线损补偿。 CXCH7694 提供了软启动和各种保护机 制,包括功率管限流模式,电源电压过压 保护,电源电压欠压保护,以及电源钳位 电路等。 通过设置合适的参数,系统可以得到 高精度的输出恒压以及恒流控制。zLX嘉泰姆

   产品特点 返回TOPzLX嘉泰姆


 集成高压供电电源 zLX嘉泰姆

 电流控制预热,预热时间和预热电流可 调 zLX嘉泰姆

 灯功率基本不受电源电压变化影响 zLX嘉泰姆

 点火期间电感电流饱和保护 zLX嘉泰姆

 过热保护 zLX嘉泰姆

 电容模式保护 zLX嘉泰姆

 过功率控制 zLX嘉泰姆

 灯管寿命终止时,系统自动关闭 zLX嘉泰姆

 可调工作频率,方便与各种灯管匹配 zLX嘉泰姆

 内部集成欠压保护zLX嘉泰姆

   应用范围 返回TOPzLX嘉泰姆


 隔离小功率适配器模块 zLX嘉泰姆

 隔离小功率充电器模块 zLX嘉泰姆

 隔离 LED 恒流驱动模块zLX嘉泰姆

   技术规格书(产品PDF) 返回TOP zLX嘉泰姆


     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zLX嘉泰姆

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产品封装图 返回TOPzLX嘉泰姆


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电路原理图 返回TOPzLX嘉泰姆


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适配器
产品型号 输入电压 输出电压 输出电流 工作效率 产品封装 备注
CXCH7691 85-265V 低于输入 5V2A 12V1A 80% DIP-8 PWM控制+三极管13003
CXCH7692 85-265V 低于输入 5V 2A 12V 1A 82% SOT23-6 PWM外驱MOSFET
CXCH7693 85-265V 低于输入 1A 80% TO-94 PWM驱动MOSFET+PSR无431,无光耦
CXCH7694 85-265V 低于输入 2.5A 80% SOT23-6 PWM驱动MOSFET+PSR 无431,无光耦