WMSIC Electronic Components

MICRONE ME4075AM5G

ModelME4075AM5G
PackageSOT-23-5
BrandMICRONE
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 Option 139128

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME4075AM5G
Type
MICRONE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME4075AM5G
Electronic Component
1
Package
SOT-23-5
Electronic Component
Battery Management
Electronic Component
0.039g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0227598292
Operating Temperature
40℃~+85℃
Operating Voltage
4V~6.5V
Battery Type
Battery
Battery
1
ICType
IC
0VBattery
Electronic Component

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

ME4075AM5G 产品概述

ME4075AM5G 是 MICRONE(南京微盟)推出的一款面向单节锂电池(LiFePO4)充电管理的充电芯片,采用 SOT-23-5 小封装,适合体积受限且对能耗敏感的便携与嵌入式应用。器件工作电压范围为 4V ~ 6.5V,最大充电电流 800mA,充电终止/饱和电压为 3.6V,器件静态电流仅 55µA,工作温度范围 -40℃ ~ +85℃。需要注意的是,该芯片不支持对电压降至 0V 的电池直接充电。

① 主要特点与定位

  • 单节电池专用充电管理器件,目标电池化学体系为额定充电电压约 3.6V 的体系(如 LiFePO4)。
  • 输入电压 4V ~ 6.5V,适配常见 USB(5V)或电池组供电场景。
  • 支持最大 800mA 的充电电流,适用于中低功率便携设备或 IoT 节点的快速充电需求。
  • 低静态电流(Iq = 55µA),待机损耗小,有利于延长系统待机时间。
  • 封装为 SOT-23-5,利于小型化 PCB 设计与批量制造成本控制。
  • 不支持 0V 唤醒充电,需外部手段或预充电电路处理深度放电电池。

② 关键规格(摘要)

  • 芯片类型:充电芯片(电池管理)
  • 工作电压(VCC):4.0V ~ 6.5V
  • 最大充电电流:800mA
  • 充电饱和 / 终止电压:3.6V
  • 适配电池节数:1 节
  • 支持 0V 电池充电:否
  • 静态电流(Iq):55µA
  • 工作温度范围:-40℃ ~ +85℃
  • 封装形式:SOT-23-5
  • 品牌:MICRONE(南京微盟),型号:ME4075AM5G

③ 典型应用场景

  • 便携式测量仪器、手持终端与小型消费电子设备。
  • IoT 设备、无线传感器节点、远程数据采集装置(需要小待机电流)。
  • 智能家居电池模块、便携式医疗设备、应急灯及小功率充电模块。
  • 需严格尺寸与成本控制、能够接受单节 LiFePO4 充电电压的系统。

④ PCB 设计与电路接入建议

  • 电源输入侧建议并联适当容量的去耦电容(如 4.7µF~10µF),以抑制输入瞬态与提高稳定性。
  • 充电电流在接近 800mA 时,器件及周边需要注意热耗散与铜箔面积,必要时在 PCB 中增加散热铜箔。
  • 由于不支持 0V 唤醒,如果需要对深度放电电池进行恢复,建议在系统中增加外部预充电电路或手工唤醒方案,避免直接使用芯片尝试对 0V 电池充电。
  • 推荐在电池端增加防反接二极管或 MOSFET 以防止电池反向放电对外部电路的影响,必要时加入保险丝与 TVS 抑制器以提升可靠性。
  • 布局上:应将电源走线尽量缩短,GND 面要完整,输入与电池走线分开,减少噪声耦合。

⑤ 使用与安全注意事项

  • 充电电流的选择应依据电池规格与温升能力设定,不建议长期以最大 800mA 恒定充电,需兼顾电池厂家推荐的充电电流与热管理。
  • 芯片工作电压下限 4V,若供电源可能低于该值(例如电源电压波动或弱 USB),需评估充电行为及安全性。
  • 因不支持 0V 电池直接充电,系统需检测电池电压并在低于安全唤醒电压时采取保护或外部唤醒措施。
  • 在高温环境或充电电流较大情形下,监控电池温度并采用必要的温度保护策略,避免过热导致电池损坏或安全问题。
  • 遵循电池制造商的充电规范(特别是 LiFePO4 电池对终止电压与充电曲线的要求),以保证电池寿命与安全。

⑥ 选型建议与总结

ME4075AM5G 适合寻求小体积、低静态功耗且面向单节 LiFePO4 电池充电管理的设计场景。若系统需要对 0V 深度放电电池进行唤醒,或需支持更高电流与多节电池,应选型其它支持这些功能的充电管理芯片或配合外部电路处理。总体而言,ME4075AM5G 在中小功率便携设备与 IoT 场景中具有良好的性价比与实用性。若需更详细的管脚定义、电流设定方法与典型应用电路,请参阅芯片完整数据手册或联系供应商获取参考设计。

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