WMSIC Electronic Components

Slkor DW03C

ModelDW03C
PackageSOT-23-5
BrandSLKOR
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
Slkor DW03C
Type
SLKOR
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SLKOR
Electronic Component
DW03C
Electronic Component
1
Package
SOT-23-5
Electronic Component
Battery Management
Electronic Component
0.049g
Electronic Component
1
Electronic Component
BM0264567866
Operating Temperature
40℃~+85℃
Battery Type
Battery
Battery
1
ICType
IC
0VBattery
Electronic Component
Static Current(Iq)
300nA
Voltage
2.4V

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

DW03C 产品概述

一、产品简介

DW03C 是一款面向单节可充电锂电池的保护芯片,由 Slkor(萨科微)品牌推出。器件集成了功率 MOSFET,能够实时监测电池电压与电流,并在异常情况下通过断开充电器或负载来保护电池,避免因过充、过放、过流或短路而造成电池损坏。芯片外围电路简单,适合体积受限且对成本敏感的便携式设备设计。

二、主要功能与保护项

  • 过充保护:当电池电压超过设定值时断开充电路径,防止电池过压损坏。
  • 过放保护:当电池电压下降到设定截止电压附近时切断放电路径,避免电池过放导致容量衰减或不可逆损伤(放电截止电压:2.4V)。
  • 过流/短路保护:检测过充电流与过放电流并在超限时动作,以应对外部短路或异常负载。
  • 0V 电池充电支持:能够对已放电至 0V 的电池执行安全的预充电,利于极低电压电池的恢复。
  • 低静态电流:静态电流典型值为 300 nA,有利于长待机和低自放电要求的应用。
  • 电池温度检测:芯片不支持电池温度检测,若系统对温度安全有要求需外加温度监测方案。

三、关键参数(摘要)

  • 芯片类型:保护芯片(单节锂电池)
  • 最大充电电流:5.8 A(典型或最大值,设计时应参照完整资料和系统热预算)
  • 放电截止电压:2.4 V
  • 电池类型 / 节数:锂电池,单节(1S)
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 电池温度检测:不支持
  • 0V 电池充电:支持
  • 静态电流(Iq):300 nA
  • 集成 MOSFET 等效电阻:典型 48 mΩ
  • 封装:SOT-23-5
  • 品牌:Slkor(萨科微)

四、设计建议与注意事项

  • 热管理:内置 MOSFET 的导通电阻约为 48 mΩ,较高工作电流下会产生热量。建议在 PCB 设计时增加铜箔面积(尤其是 MOSFET 引脚与电池/外部电流路径处)以增强散热。
  • 供电与滤波:在电池与充电器接口处布置适配的去耦电容,抑制瞬态冲击并保证保护芯片稳定检测电压。
  • 充电电流与器件限额:虽然器件标称支持高达 5.8 A 的充电电流,但实际应用需综合考虑封装散热能力、电池规格与安全裕度,选择合适的充电电流。
  • 温度监控补充:芯片本身不带电池温度检测,若产品规格或安全标准要求温度保护,应外置热敏元件(NTC)并在系统层进行管理。
  • 系统可靠性:推荐在保护芯片外增加合适的熔断器或电流保险元件以应对极端短路故障,必要时添加软启动或限流电路以降低充电初期冲击。
  • 接口与布局:遵循厂商资料书的推荐布局与走线规则,避免引脚周围噪声耦合影响误触发。

五、典型应用场景

  • 便携电子:蓝牙耳机、手持设备、便携式仪表等单节电池供电产品。
  • 移动电源与充电宝(小容量或单节场景)
  • 智能穿戴与低功耗传感终端(利用低静态电流优势)
  • 小型家电、玩具、电动剃须刀等需电池保护的消费类电子

六、总结

DW03C 为单节锂电池提供完整的充放电保护功能,集成 MOSFET、外围电路简单、静态电流低,适合体积与成本受限的便携式应用。在设计时应重视散热与充电电流的匹配,并针对温度保护缺失部分补充外部方案,以确保系统长期可靠与电池安全。欲获取更详细的阈值、时序与引脚定义,请参考 Slkor 官方数据手册并按手册进行 PCB 布局与验证。

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