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CONSONANCE CN3768
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CONSONANCE CN3768
- Type
- CONSONANCE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CONSONANCE
- Electronic Component
- CN3768
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Battery Management
- Electronic Component
- 0.127g
- Electronic Component
- 1
- Features
- Programmable Current
- Electronic Component
- BM0226176194
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 6.6V~30V
- Battery Type
- Battery
- Battery
- 1
- ICType
- IC
- Static Current(Iq)
- 52uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CN3768 产品概述
CN3768 是 CONSONANCE（上海如韵）推出的一款用于单节铅酸电池的充电管理芯片，SOP-8 封装，适合需要恒流-恒压充电控制的中小功率充电应用。该器件工作电压范围宽（6.6V～30V），最大充电电流可达 4A，静态电流低至 52μA，能在-40℃～+85℃环境下稳定运行，适应性强且功耗低。
一、主要性能特点
- 适用电池：单节铅酸电池（推荐用于 12V 系统，充电饱和电压 14.8V）
- 最大充电电流：4A（需配合外部限流元件与散热措施）
- 工作电压范围：6.6V ～ 30V，便于与多种电源适配
- 静态电流（Iq）：52μA，节省空载能耗
- 工作温度：-40℃ ～ +85℃，工业级温度范围
- 封装：SOP-8，便于通过孔与贴片 PCB 布局
二、功能与应用场景
CN3768 提供基本的恒流-恒压充电控制，适用于：
- 车辆辅助电源、应急照明与后备电源的铅酸电池充电
- 小型 UPS、通讯电源与工业控制系统中的充电模块
- 与太阳能板或开关电源结合的独立充电方案
三、设计注意事项
- 恒流设置：器件最大支持 4A 输出，实际设计中应通过外部电流检测/限流元件（如大功率电阻或电流放大器+MOSFET）精确设定充电电流，并选择相应的功率等级以保证可靠性。
- 恒压控制：充电饱和电压为 14.8V，适配 12V 铅酸充电曲线；实际方案中应考虑电池温度对压差的补偿。
- 散热与布局：在高电流工作条件下，芯片与外部功率器件会产生较大热量，建议采取加大铜箔、散热垫或金属散热片等措施，并做好热过载保护。
- 输入要求：输入电源需高于目标充电终止电压并留有裕量，尽量采用低纹波、稳定的直流源以提高充电效率与电池寿命。
四、典型外部元件与保护
推荐在设计中加入：
- 适当功率的电流检测/限流电阻与 MOSFET 开关
- 反接保护二极管与输入过压/欠压保护电路
- 温度检测元件（NTC）用于电池温度补偿与高温停充
- 电容滤波与 EMI 抑制元件，保证系统稳定
总结：CN3768 以其宽工作电压、低静态电流和 4A 的充电能力，适合工业级、车载级和备电系统的单节铅酸电池充电管理。合理的外部器件搭配与散热设计是发挥其可靠性和长期稳定性的关键。
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