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CONSONANCE CN3304
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN3304
- Type
- CONSONANCE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN3304
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Battery Management
- Electronic Component
- 0.105g
- Electronic Component
- 1
- Features
- Programmable Current
- Electronic Component
- BM0257674188
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.7V~6.5V
- Battery Type
- Battery
- Battery
- 4
- ICType
- IC
- Static Current(Iq)
- 2uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CN3304 产品概述
一、产品简介
CN3304 是 CONSONANCE（上海如韵）推出的一款用于锂电池组的充电/DC-DC 电源控制芯片。器件采用外置元件驱动方案，封装为常见的 SOP-8，适合工业与消费类设备的高电流充电场景。芯片针对四节锂电池（4S）设计，能与外部开关器件、感性元件和检测元件配合工作，实现对电池的稳健充电与电源管理。
二、主要技术参数
- 芯片类型：充电芯片 / DC-DC 控制器（外置器件）
- 工作电压：2.7V ~ 6.5V（芯片供电/输入范围）
- 最大充电电流：10.5A（通过外部功率器件实现）
- 充电饱和电压：16.8V（适配 4 节锂电池）
- 电池类型：锂电池，电池节数：4 节（4S）
- 工作温度：-40℃ ~ +85℃
- 静态电流（Iq）：2μA（低静耗设计）
- 封装：SOP-8（外置布线、器件便利）
三、性能亮点
- 高效大电流：支持最高 10.5A 的充电电流，适合对充电速度有较高要求的应用。
- 低静态功耗：2μA 的静态电流使得系统待机损耗极低，有助于延长系统整机待机时间。
- 宽温工作：-40℃ 至 +85℃ 的工业级温度范围，适应复杂环境。
- 模块化设计：SOP-8 外置方案便于用户根据负载和散热需求选择 MOSFET、电感和电阻，灵活性高。
四、典型应用场景
- 便携式动力工具、无人机等需要快充的大电流充电系统；
- 电动自行车/E-bike 的车载充电模块（配合外部电源拓扑）；
- 工业电源与备用电池充电管理；
- 需要低待机损耗且支持 4S 锂电池的各类智能设备。
五、设计与布局建议
- 功率路径尽量缩短、加宽走线，关键元件（MOSFET、电感、电容、取样电阻）靠近芯片布局；
- 外部 MOSFET 选择低 RDS(on) 器件以降低发热，确保在 10A 级别下有充足的散热余量；
- 取样电阻需按目标充电电流精确选型并注意功率余量；建议并用并联电阻或选择高功率封装；
- 输出与输入滤波电容采用低 ESR 类型，保证稳压与纹波控制；SOP-8 的散热需通过铜箔与过孔改善；
- 系统应配合外部过流、过压、反接与温度监测保护电路，提升可靠性。
六、注意事项与可靠性建议
- 虽然芯片本身静态电流低，但在高充电电流下系统发热主要来自外部功率器件，请做充分热设计；
- 输入电压低于 2.7V 或高于 6.5V 可能导致器件无法正常工作或损坏，需在系统层面加以限制；
- 在极端温度工况下关注器件参数漂移，必要时加入温度补偿与功率降额策略；
- 推荐在开发阶段进行 EMC 与热循环测试，确保长期可靠性。
如需参考典型应用电路、器件选型建议或 PCB 布局示意，可提供系统工作条件与功率目标，我可以进一步给出详细设计建议。
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