WMSIC Electronic Components

LOWPOWER LP28303ASPF

ModelLP28303ASPF
PackageESOP-8
BrandLOWPOWER
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
LOWPOWER LP28303ASPF
Type
LOWPOWER
Minimum package
4000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LOWPOWER
Electronic Component
LP28303ASPF
Electronic Component
1
Package
ESOP-8
Electronic Component
Battery Management
Electronic Component
0.152g
Electronic Component
1
Features
Programmable Current; Battery
Electronic Component
BM0257675013
Operating Temperature
20℃~+85℃
Operating Voltage
4.5V~5.5V
Battery Type
Battery
Battery
1
ICType
IC
Static Current(Iq)
100uA

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

LP28303ASPF 产品概述

一、产品简介

LP28303ASPF 是 LOWPOWER(微源半导体)推出的一款单节锂电池充电管理芯片,适用于便携式设备和电源受限场景。芯片工作输入电压范围为 4.5V~5.5V,支持最大充电电流 2.5A,采用恒流/恒压(CC/CV)充电策略,充电终止电压为 4.2V。封装为 ESOP-8,工作温度范围 -20℃~+85℃,静态工作电流仅 100µA,适合对待机功耗有要求的系统。

二、主要特性

  • 单节锂电池专用充电管理,充电饱和电压 4.2V。
  • 最大充电电流 2.5A,满足中大电流快充需求。
  • 输入工作电压范围:4.5V~5.5V,兼容常见 USB 和适配器电源。
  • 低静态电流 Iq = 100µA,降低断电/待机能耗。
  • 支持电池温度检测(NTC),提升充电安全性。
  • 封装:ESOP-8,便于 PCB 布局与散热设计。
  • 工作温度范围:-20℃~+85℃,适应多种应用环境。

三、功能与保护

LP28303ASPF 集成常见充电保护与管理功能以保证电池与系统安全,包括但不限于:

  • 恒流/恒压充电控制与充电终止检测;
  • 充电电流限制与过流保护;
  • 热调节(Thermal Regulation),在芯片或环境温度升高时自动降低充电电流;
  • 电池温度检测接口(支持外接 NTC),可在电池过冷或过热时停止充电;
  • 输入欠压/过压保护与故障检测(具体实现与门限请参考数据手册)。

四、典型应用场景

  • 移动电源、便携式蓝牙设备、MP3/MP4、无线鼠标/键盘等消费电子;
  • 小型手持设备与智能可穿戴外设(需单节锂电池);
  • 需要 1~2.5A 充电能力且关注待机功耗的场合。

五、设计要点与建议

  • 输入电源需稳定在 4.5V~5.5V,建议在输入处加足够的去耦电容以抑制瞬态;
  • 2.5A 较大充电电流会产生热量,建议在 PCB 上使用较大铜箔面积并辅以散热盲孔或散热垫;
  • 电池温度检测建议配合 10k NTC,按厂商推荐的阈值连接到温度检测引脚;
  • 充电电流设定和外部元件选择请参照器件手册,关键参数(限流电阻、电容布局、滤波方案)直接影响性能与安全;
  • 做好软硬件状态指示和异常处理(如充电超时、温度异常、输入异常),提升系统可靠性。

六、封装与环境参数

  • 品牌:LOWPOWER(微源半导体);型号:LP28303ASPF;
  • 封装:ESOP-8,便于常规 SMT 工艺组装;
  • 环境与可靠性:工作温度 -20℃~+85℃,低静态电流 100µA,有利于延长整机待机时间。

如需进一步电气特性图、引脚定义与典型应用电路,请提供是否需要器件手册(Datasheet),可基于 Datasheet 给出更精确的设计与布局建议。

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