WMSIC Electronic Components

SGMICRO SGM40561-4.35YTDE8G/TR SGM40561

ModelSGM40561-4.35YTDE8G/TR
PackageTDFN-8L(2x2)
BrandSGMICRO
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SGMICRO SGM40561-4.35YTDE8G / TR
Type
SGMICRO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM40561-4.35YTDE8G/TR
Electronic Component
1
Package
TDFN-8L(2x2)
Electronic Component
Battery Management
Electronic Component
0.047g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0228147276
Operating Temperature
40℃~+85℃
Battery Type
Battery
Battery
1
ICType
IC
0VBattery
Electronic Component
Static Current(Iq)
200uA

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

SGM40561-4.35YTDE8G/TR 产品概述

一、产品简介

SGM40561-4.35YTDE8G/TR 为 SGMICRO(圣邦微)推出的一款单节锂电池充电管理芯片,输出恒压终止电压为 4.35V。芯片采用 TDFN-8L (2x2) 小封装,工作温度范围宽 (-40℃ ~ +85℃),适合空间受限的便携电源设计。该器件集成恒流充电、涓流充电、可编程充电电流及过压保护等基本充电功能,是小电流锂电池充电应用的理想选择。

二、主要特性

  • 单节锂电池充电(终止电压 4.35V)
  • 最大可设定充电电流 560mA,支持外部电阻编程
  • 支持恒流(CC)和涓流(Trickle)充电模式
  • 内置过压保护
  • 静态电流(Iq)约 200μA,待机功耗低
  • 不支持电池温度检测(无 NTC 接口)
  • 不支持 0V 唤醒充电(对低至 0V 的深度放电电池需外部处理)
  • 封装:TDFN-8L (2x2)

三、应用场景

适用于蓝牙耳机、可穿戴设备、便携式传感器、小型手持设备、低功耗 IoT 节点等对体积与功耗要求较高的单节锂电池充电场合。因最大充电电流为 560mA,适合中小容量电池的常规充电需求。

四、设计建议与注意事项

  • 充电电流通过外部编程电阻设置,设计时应参照电池厂商建议的充电倍率(C-rate)选择合适电流,避免超过电池最大充电规格。
  • 由于器件不支持 0V 唤醒,若需对过放电电池恢复充电,应在系统设计中加入前级唤醒电路或外部保护电路。
  • 器件无电池温度检测功能,需通过系统级温度监测或采用电池带温度报警的方案以保证充电安全。
  • 输入电源应具备足够的电流能力并加装合适的滤波电容以保证供电稳定,布板时注意热量散逸和布局,TDFN 小封装对散热敏感,建议增大铜箔散热区。
  • 注意满足数据手册中关于启动条件、输入电压范围及外部元件选择的具体要求(如电容类型与数值、程序电阻位置等)。

五、总结

SGM40561-4.35YTDE8G/TR 为小体积、低功耗的单节锂电池充电管理方案,提供可编程充电电流和基础充电保护功能,适合对封装尺寸和静态电流敏感的便携类产品。但在安全与完整性方面需考虑其不支持电池温度检测与 0V 唤醒的限制,通过外围设计补足相应功能可获得稳健的充电解决方案。若需更详细的电气参数、典型应用电路与 PCB 布局建议,请参阅官方技术手册。

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