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CONSONANCE CN3717
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN3717
- Type
- CONSONANCE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN3717
- Electronic Component
- 1
- Package
- TSSOP-16
- Electronic Component
- Battery Management
- Electronic Component
- 0.198g
- Electronic Component
- 1
- Features
- Programmable Current
- Electronic Component
- BM0226176293
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 7.5V~28V
- Battery Type
- Battery
- Battery
- 1
- ICType
- IC
- Static Current(Iq)
- 10uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CN3717 产品概述
一、产品简介
CN3717 是 CONSONANCE（上海如韵）推出的一款高性能充电管理芯片，封装为 TSSOP-16。该芯片针对铅酸电池充电场景优化，支持电池温度检测与多段充电管理，适用于需要恒流/恒压充电、最大充电电流可达 5A 的中小功率充电系统。工作电压范围宽（7.5V ~ 28V），在-40℃ ~ +85℃的环境下可靠工作，静态电流低至 10μA，适合对效率与待机功耗有较高要求的应用。
二、主要参数
- 最大充电电流：5A
- 工作电压：7.5V ~ 28V
- 电池类型：铅酸电池（1 节配置场景）
- 电池温度检测：支持（外接温度传感器/NTC）
- 静态电流（Iq）：10μA
- 工作温度范围：-40℃ ~ +85℃
- 封装：TSSOP-16
- 芯片类型：充电管理芯片
三、功能特点
- 恒流/恒压充电控制：适配铅酸电池常用的补偿充电曲线，支持分阶段充电策略（整流/吸收/浮充）；
- 温度补偿：通过外部温度传感器实现充电电压和充电策略的实时调整，保护电池寿命；
- 低静态功耗：静态电流仅 10μA，利于系统待机与长期连接场景；
- 宽输入电压范围：便于在多种电源环境（适配器、逆变、车载电源等）中使用；
- 多重保护：建议与外部电流检测、电流限制、热关断和过压/短路保护电路配合使用，提升系统可靠性。
四、典型应用
- 不间断电源（UPS）与备用电源充电模块
- 小型蓄电池供电设备的充电管理（安防、报警、应急灯）
- 太阳能板配套的铅酸电池充电控制
- 车载及便携式电源管理系统（需满足输入电压范围）
五、设计与使用建议
- 电流设置：通过外接电流采样电阻和配套 MOSFET 实现恒流限制与功率分流，确保不超过 5A 上限并兼顾发热；
- 散热设计：高电流场景下，功率器件（MOSFET、采样电阻）应做好散热与 PCB 铜箔宽导，TSSOP-16 自身布局靠近散热路径；
- 温度检测：NTC应紧贴电池外壳或安放于电池近端位置，以保证温度补偿准确；
- 保护元件：建议外接熔断器、反向极性保护、输入滤波与浪涌抑制元件，提升系统安全性；
- 布局注意：高电流走线短且粗，采样电阻与测量地需单独回流，模拟地与功率地分区，降低干扰对控制回路的影响。
六、封装与品牌信息
- 封装：TSSOP-16，便于表面贴装和中高密度 PCB 布局；
- 品牌：CONSONANCE（上海如韵），提供元件一致性与工业级可靠性支持。
总结：CN3717 面向铅酸电池的恒流/恒压充电管理，支持温度检测、低静态功耗与较宽输入电压范围，适合 5A 以内的充电应用。在实际电路设计中需配合合适的外围功率器件与保护电路，以保证充电效率和系统安全。
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