WMSIC Electronic Components

CONSONANCE CN3704

ModelCN3704
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 Date code within 2 years

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Technical data

Product details

19 specifications

Core information

Product name
CONSONANCE CN3704
Type
CONSONANCE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CONSONANCE
Electronic Component
CN3704
Electronic Component
1
Package
TSSOP-16
Electronic Component
Battery Management
Electronic Component
0.198g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0264491152
Operating Temperature
40℃~+85℃
Operating Voltage
7.5V~28V
Battery Type
Battery
Battery
4
ICType
IC
Static Current(Iq)
14uA

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

CONSONANCE CN3704 4节锂电池充电管理芯片产品概述

CONSONANCE(上海如韵)推出的CN3704是一款专为4节串联锂电池组设计的高效充电管理芯片,集成度高、性能稳定,兼顾宽温适应性与低功耗待机需求,适用于中大功率锂电池充电场景。

一、产品核心定位与设计目标

CN3704针对4节锂电池(标称14.8V、满充16.8V) 的充电管理需求开发,核心设计目标是:在宽输入电压范围内实现稳定快充,同时通过温度检测与低静态功耗提升设备安全性与待机时长,适配工业级、户外及便携式应用场景。

二、关键性能参数与特性解析

1. 电压与电流能力

  • 输入电压范围:7.5V~28V宽输入,可兼容12V/24V市电适配器、低压太阳能光伏板等多种电源,无需额外电源转换电路;
  • 充电输出:饱和电压精确控制在16.8V,匹配4节锂电池满充电压需求,避免过充损伤电池;
  • 最大充电电流:支持5A快充,满足2Ah~10Ah容量锂电池组的快速充电需求,缩短充电时间(如5Ah电池组约1小时充满)。

2. 功耗与温度适应性

  • 静态电流(Iq):仅14μA极低待机功耗,远低于普通充电芯片(多数产品≥50μA),可显著延长设备闲置时的电池续航;
  • 工作温度范围:-40℃+85℃工业级温宽,覆盖北方冬季户外、高温车间等极端场景,可靠性优于商业级(0℃70℃)芯片。

3. 安全与检测功能

  • 电池温度检测:内置温度检测接口,支持外接NTC热敏电阻实时监测电池温度,当电池过温(如充电时过热)时自动降低充电电流或停止充电,防止电池鼓包、起火等安全隐患;
  • 基础保护:集成过压、过流、短路保护功能,进一步提升充电过程的安全性。

三、封装与集成优势

CN3704采用TSSOP-16封装,体积小巧(约5mm×4.4mm),适合便携式设备(如手持工具、迷你储能电源)的紧凑布局;芯片集成充电控制、温度检测、保护电路等核心功能,仅需少量外围元件(如电阻、电容、NTC)即可实现完整充电方案,简化电路设计与PCB布线。

四、典型应用场景

  1. 便携式储能电源:宽输入适配市电+太阳能双充电模式,5A快充满足大容量电池组需求,低静态电流延长待机,宽温适应户外露营、应急供电;
  2. 电动工具:4节锂电池供电(如电钻、割草机),5A快充缩短充电间隔,-40℃~+85℃温宽适配车间/户外作业,温度检测保障电池安全;
  3. 工业手持设备:TSSOP-16封装小型化,适合巡检终端、手持检测仪,低静态电流提升待机时长;
  4. 户外应急电源:极端温度下稳定工作,电池温度检测防止低温充电损伤电池,满足救援、探险等场景需求。

五、产品竞争优势总结

对比同类4节锂电池充电芯片,CN3704的核心优势包括:

  • 宽输入电压覆盖广,适配多种电源类型;
  • 14μA超低静态电流,待机功耗行业领先;
  • 工业级温宽,极端环境可靠性高;
  • 集成温度检测,简化设计同时提升安全;
  • 5A快充能力,满足中大功率充电需求。

CN3704凭借以上特性,成为4节锂电池充电管理的高性价比选择,适用于对功耗、温度、快充有综合需求的设备设计。

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