WMSIC Electronic Components

CONSONANCE CN3702

ModelCN3702
PackageTSSOP-16
BrandCONSONANCE
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CONSONANCE CN3702
Type
TSSOP-16
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CONSONANCE
Electronic Component
CN3702
Electronic Component
1
Package
TSSOP-16
Electronic Component
Battery Management
Electronic Component
0.198g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0227258414
Operating Temperature
40℃~+85℃
Operating Voltage
7.5V~28V
Battery Type
Battery
Battery
2
ICType
IC
Static Current(Iq)
15uA

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

CN3702 产品概述

一、简介

CN3702 是 CONSONANCE(上海如韵)推出的一款专为 2 节锂电池组设计的充电管理芯片,采用 TSSOP-16 封装。芯片工作电压范围为 7.5V 至 28V,支持电池温度检测,最大充电电流 5A,充电饱和电压 8.4V,静态工作电流仅 15μA,工作温度范围 -40℃ 至 +85℃,适用于需要高效率与高可靠性的中小功率锂电池充电场景。

二、主要性能参数

  • 电池类型:锂电池(2 节串联)
  • 最大充电电流:5A(可通过外部元件设定)
  • 充电饱和电压:8.4V(2S 标准 4.2V/节)
  • 工作电压范围:7.5V ~ 28V
  • 静态电流 Iq:15μA(低静态电流,节省待机功耗)
  • 电池温度检测:支持(外接 NTC 热敏电阻)
  • 工作温度:-40℃ ~ +85℃
  • 封装:TSSOP-16

三、功能亮点

  • 支持常见的 CC/CV(恒流/恒压)充电策略,适配标准锂电池化学特性;
  • 低待机电流,有利于长时间待机设备节能;
  • 宽输入电压范围,兼容多种电源环境(车辆、适配器、太阳能等);
  • 支持电池温度检测,可实现充电流程的温度保护与限制;
  • TSSOP-16 封装便于中小批量生产与散热设计。

四、典型应用场景

  • 便携式电源、移动储能、UPS 与不间断电源模块;
  • 工业仪表、通信设备、巡检或备电系统;
  • 需要中等充电功率(≤5A)的消费类或工业类锂电池系统。

五、设计与使用建议

  • 采用外置电流采样电阻(或电流检测元件)来准确设定充电电流;Rprog 与外部 MOSFET 配合完成大电流开关控制;
  • 在输入端与电池端均应放置低 ESR 电容,靠近芯片布局以保证稳定性并抑制瞬态;
  • 温度检测建议使用标准 10k NTC,配合合理阈值判断充电允许/禁止区间,提升安全性;
  • 注意 PCB 散热设计,给功耗较大的 MOSFET 与采样电阻预留足够铜箔面积;
  • 系统应配合过压、欠压、过流与定时保护机制,满足电池与整机安全要求。

六、可靠性与测试要点

  • 通过实际温度循环、过流与短路试验验证热限流与保护动作;
  • 在目标工作电压范围与不同负载条件下,核验静态电流与充电精度;
  • 在量产前确认 PCB 布局、热流路径与外部元件的可靠性,以保证长期稳定运行。

总结:CN3702 面向 2S 锂电池的中等功率充电场合,兼顾效率、保护与成本,是对外部元件可控性较高的充电管理方案。具体电路设计与保护参数应按实际应用场景与安全规范调整。

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