目录
产品概述 返回TOPJek嘉泰姆
CXCH7645是一种高性能离线式</span>PWM控制器，主要用于中小功率 AC/DC充电器和适配器中。它工作于原边采样和调节，可省除极间光耦和 TL431，其恒压和恒流控制特性说明如下图。</span>在恒流控制时，其电流和输出功率的设定可由 CS 脚上的传感电阻</span> Rs 来调节；在恒压控制时，利用混合工作</span>模式可以获得高效率和高性能。另外，利用内部的导线压降补偿功能可以得到良好的负载调整特性。在恒流模式重负载工作条件下，器件工作在 PFM 模式；中负载和轻负载，器件可工作在</span> PWM模式和降频模式。</span>Jek嘉泰姆
CXCH7645具有电源软启动控制和多种带自动恢复的有效保护，它包含逐周期电流限制，VDD 过压保护，</span>VDD钳位和欠压保护等。另外，CXCH7645还有优良的</span> EMI 性能和频率抖动控制特性，使用 CXCH7645 可获得高精确的</span>恒压/恒流特性。</span>Jek嘉泰姆
产品特点 返回TOPJek嘉泰姆
Jek嘉泰姆
在通常 AC 输入条件下，恒压调节 5%，恒流</span>调节 5%Jek嘉泰姆
原边采样和调节无需光耦和 TL431Jek嘉泰姆
可程控</span> CV/CC 调节Jek嘉泰姆
可设定恒流和输出功率Jek嘉泰姆
内建次级恒流控制和原边反馈</span>Jek嘉泰姆
内建合适的峰值电流调节</span>Jek嘉泰姆
内建原边电感补偿Jek嘉泰姆
可调节线压降补偿Jek嘉泰姆
开机软启动Jek嘉泰姆
外置 MOS 管</span>Jek嘉泰姆
内置前沿消隐电路（</span>LEB）</span>Jek嘉泰姆
可逐周期电流限制</span>Jek嘉泰姆
带有迟滞的欠压锁定（UVLO）</span>Jek嘉泰姆
VDD 过压保护（</span>OVP）</span>Jek嘉泰姆
VDD 钳位功能Jek嘉泰姆
封装形式：</span>SOP-8Jek嘉泰姆
应用范围 返回TOPJek嘉泰姆
Jek嘉泰姆
中小功率 AC/DC 离线式开关电源</span>Jek嘉泰姆
手机充电器</span>Jek嘉泰姆
数码相机充电器</span>Jek嘉泰姆
小功率适配器</span>Jek嘉泰姆
PC、</span>TV 等电器的辅助电源Jek嘉泰姆
USB 充电排插Jek嘉泰姆
恒流 LED 照明Jek嘉泰姆
技术规格书（产品PDF) 返回TOP Jek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</span>！</span>
Jek嘉泰姆
Jek嘉泰姆
产品封装图 返回TOPJek嘉泰姆
Jek嘉泰姆
电路原理图 返回TOPJek嘉泰姆
Jek嘉泰姆
Jek嘉泰姆
Jek嘉泰姆
电源管理类>线充充电器系列（内置）</span>Jek嘉泰姆 |
型号Jek嘉泰姆 | 输入电压Jek嘉泰姆 | 输出电压Jek嘉泰姆 | 输出电流Jek嘉泰姆 | 效率Jek嘉泰姆 | 适用范围Jek嘉泰姆 | 封装Jek嘉泰姆 |
CXCH7634ATSHJek嘉泰姆 | 180V~264VJek嘉泰姆 | 5V~5.5VJek嘉泰姆 | 500mAJek嘉泰姆 | 68Jek嘉泰姆 | 手机等数码产品 充电器、适配器、标准和辅助供电模块Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7634BTS/BTDJek嘉泰姆 | 180V~264VJek嘉泰姆 | 5V~5.5VJek嘉泰姆 | 500mA~1AJek嘉泰姆 | 78Jek嘉泰姆 | 手机等数码产品 充电器、适配器、标准和辅助供电模块Jek嘉泰姆 | SOP-8/DIP-8Jek嘉泰姆 |
CXCH7634BTSHJek嘉泰姆 | 180V~264VJek嘉泰姆 | 5V~5.5VJek嘉泰姆 | 500mA~1AJek嘉泰姆 | 72Jek嘉泰姆 | 手机等数码产品 充电器、适配器、标准和辅助供电模块Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7635BTJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 500mA/1AJek嘉泰姆 | 78Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | DIP-8/SOP-8Jek嘉泰姆 |
CXCH7636ATSJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 500mAJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7636BTSJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 1AJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7637BTJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 500mA/1AJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | DIP-8/SOP-8Jek嘉泰姆 |
CXCH7637CTSJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 500mA/1AJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7638MTDJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 2AJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7639BTSJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 1AJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7640BTSJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 1.8AJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7640CTDJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 2AJek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品充电器、适配器、线性电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7641Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | /Jek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | SOP-7Jek嘉泰姆 |
CXCH7642Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | /Jek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | SOP-7Jek嘉泰姆 |
CXCH7643CSJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | /Jek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-7Jek嘉泰姆 |
CXCH7644Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | /Jek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-7Jek嘉泰姆 |
CXCH7645Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | /Jek嘉泰姆 | 80Jek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | SOP-7Jek嘉泰姆 |
CXCH7646CJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | /Jek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7647Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 1.5AJek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7648CJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 1.0AJek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7648SJek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 1.5AJek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7649Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 4AJek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | SOP-8Jek嘉泰姆 |
CXCH7650Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 5VJek嘉泰姆 | 4AJek嘉泰姆 | 80Jek嘉泰姆 | CC/CV电池充电器、数码产品充电器、PDA充电器</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
型号Jek嘉泰姆 | 输入电压Jek嘉泰姆 | VDD输入电压Jek嘉泰姆 | 工作电流Jek嘉泰姆 | 开关频率</span>Jek嘉泰姆 | 适用范围Jek嘉泰姆 | 封装Jek嘉泰姆 |
CXCH7651Jek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~30VJek嘉泰姆 | 3mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 手机等数码产品 充电器、适配器、线性电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7652Jek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~30VJek嘉泰姆 | 2mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 适配器、开放式电源Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7652CMJek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~30VJek嘉泰姆 | 2mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 机顶盒电源、数码相机、摄像机适配器、电脑、液晶电视待机电...Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7653Jek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~30VJek嘉泰姆 | 2mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 机顶盒电源、数码相机、摄像机适配器、电脑待机电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7654Jek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~30VJek嘉泰姆 | 2mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 机顶盒电源、数码相机、摄像机适配器、电脑、液晶电视待机电...Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7655BJek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~32VJek嘉泰姆 | 1.6mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 机顶盒电源、数码相机、摄像机适配器、电脑待机电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7656Jek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~32VJek嘉泰姆 | 1.6mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 机顶盒电源、数码相机、摄像机适配器、电脑待机电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7657Jek嘉泰姆 | 90V~264VJek嘉泰姆 | -0.3~30VJek嘉泰姆 | 2mAJek嘉泰姆 | 50KHzJek嘉泰姆 | DVD/DVB/机顶盒电源、家电电源、线性电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7658Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 30VJek嘉泰姆 | 2mAJek嘉泰姆 | 50KHzJek嘉泰姆 | DVD/DVB/机顶盒电源、家电电源、线性电源</span>Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
CXCH7659Jek嘉泰姆 | 90V~264VJek嘉泰姆 | 30VJek嘉泰姆 | 2mAJek嘉泰姆 | 50KHzJek嘉泰姆 | 机顶盒电源、数码相机、摄像机适配器、电脑、液晶电视待机电...Jek嘉泰姆 | DIP-8Jek嘉泰姆 |
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