WMSIC Electronic Components

TECH PUBLIC LTH7

ModelLTH7
PackageSOT-23-5L
BrandTECH PUBLIC
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TECH PUBLIC LTH7
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
LTH7
Electronic Component
1
Package
SOT-23-5L
Electronic Component
Battery Management
Electronic Component
0.04g
Electronic Component
1
Features
Programmable Current
Electronic Component
BM0226538737
Operating Temperature
20℃~+85℃
Operating Voltage
4.2V~7.5V
Battery Type
Battery
ICType
IC
0VBattery
Electronic Component
Static Current(Iq)
40uA

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

LTH7 产品概述

一、产品简介

LTH7 是 TECH PUBLIC(台舟电子)推出的一款用于单节锂电池的充电管理芯片,封装为 SOT-23-5L。器件面向体积受限的便携设备,提供恒流-恒压(CC/CV)类的充电管理功能(充电饱和电压 4.2V)。工作电压范围为 4.2V ~ 7.5V,适配常见 USB 或小型电源输入环境,静态电流低至 40µA,便于延长系统待机时间。

二、主要特点

  • 适用于单节锂电池,充电终止电压 4.2V,保证电池充满后的电压控制。
  • 输入工作电压范围 4.2V ~ 7.5V,兼容多种电源方案(典型为 5V USB)。
  • 极低静态电流:Iq = 40µA,降低系统待机功耗。
  • 工作温度范围宽:-20℃ ~ +85℃,适合多数消费类与工业环境。
  • 不支持电池温度检测与 0V 低电压唤醒充电,设计时需额外考虑相应保护与前级电路。

三、关键参数(摘要)

  • 芯片类型:充电芯片(电池管理)
  • 适配电池:锂电池(单节)
  • 工作电压:4.2V ~ 7.5V
  • 充电饱和电压:4.2V
  • 静态电流(Iq):40µA
  • 0V电池充电:不支持
  • 电池温度检测:不支持
  • 工作温度:-20℃ ~ +85℃
  • 封装:SOT-23-5L
  • 品牌:TECH PUBLIC(台舟电子)

四、典型应用场景

  • 智能穿戴、蓝牙耳机等超低功耗便携设备;
  • 便携式传感器与数据记录器;
  • 小型充电器模块以及需要小体积电源管理的消费电子产品;
  • 对成本与封装尺寸有严格要求的嵌入式系统。

五、设计建议与注意事项

  • 输入电压需高于电池充电电压以保证充电动作(典型选用 5V 电源);由于器件不支持 0V 唤醒,请保证电池电压不为完全放空状态,若需支持深放电恢复,须在系统中增加前置唤醒电路或保护电路。
  • 器件不具备电池温度检测功能,若产品需温度相关保护(如热敏断充),应外接温度检测与控制逻辑。
  • 充电电流应由外部限流电阻或外部恒流源配合设置,设计时需考虑热耗散与 PCB 散热路径。
  • 推荐加入输入旁路电容和必要的浪涌/反向保护,以提高系统稳定性与可靠性。
  • 在高温或高负载时,注意芯片及电池的热管理,避免在极限温度下长期工作以延长寿命。

六、封装与质量保证

LTH7 采用 SOT-23-5L 小封装,便于在密集 PCB 上布局与自动贴装。选用该器件时,请关注原厂或授权渠道的元器件可追溯性与批次质保,结合实际应用做 EMC、温升与可靠性测试。

上述信息为 LTH7 的产品概览与设计要点汇总。若需原理图参考、典型外接电路或详细电气特性(如充电电流设定方式、管脚功能、保护特性与时序),建议索取 TECH PUBLIC 的官方数据手册以获取完整规范与应用参考设计。

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