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HL DW01A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HL DW01A
- Type
- HL
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HL
- Electronic Component
- DW01A
- Electronic Component
- 1
- Package
- SOT23-6
- Electronic Component
- Battery Management
- Electronic Component
- 0.04g
- Electronic Component
- 1
- Electronic Component
- BM0265670317
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 1.5V~10V
- Battery Type
- Battery
- Battery
- 1
- ICType
- IC
- 0VBattery
- Electronic Component
- Static Current(Iq)
- 700nA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
DW01A 单节锂电池保护芯片产品概述
一、产品定位与核心价值
DW01A是富海微（HL）推出的单节锂离子/锂聚合物电池专用保护芯片，核心作用是为电池提供过充、过放、过流等全场景安全防护，同时兼顾低功耗与宽温适应性，适配便携、低待机功耗及极端环境下的电池应用需求，解决电池异常状态下的损坏风险与设备待机短等问题。
二、关键性能参数解析
该芯片的参数覆盖电池保护的核心维度，具体如下：
- 工作电压范围：1.5V~10V，覆盖单节锂电池正常放电（3.7V典型值）、充电（4.2V典型值）及过充/过放边缘电压区间；
- 充电保护参数：充电饱和电压（过充保护触发点）为4.3V，可有效阻断过充；支持0V电池充电（深度放电至0V仍可激活充电），避免电池过放报废；
- 放电保护参数：放电截止电压（过放保护触发点）为2.5V，防止电池过放至不可逆损坏；
- 静态电流：仅700nA，极低功耗可大幅减少电池自放电，延长设备待机时长；
- 工作温度：-40℃~+85℃，满足工业级宽温环境需求；
- 封装：SOT23-6，体积小巧，适配小型化产品设计。
三、核心功能特性
DW01A通过内置逻辑电路实现电池全生命周期保护，核心功能包括：
1. 过充保护
当电池充电电压达到4.3V时，芯片快速切断充电MOS管，停止充电；充电电压回落至阈值以下后，自动恢复充电，避免电池过充鼓包或起火。
2. 过放保护
电池放电至2.5V时，芯片切断放电MOS管，停止对外供电；后续充电使电压回升后，自动解除保护，防止电池过放导致容量衰减。
3. 过流/短路保护
放电过程中若负载电流过大（如短路），芯片毫秒级切断放电回路，避免电池大电流放电引发热失控；故障排除后自动恢复，无需手动重置。
4. 0V电池兼容充电
针对电池深度放电至0V的情况，芯片支持外部充电电路（如专用充电芯片）进行预充电激活，无需更换电池即可恢复使用，提升产品维修便利性。
5. 低静态功耗
700nA的静态电流远低于常规保护芯片，可将电池待机自放电损耗降至最低，尤其适合蓝牙耳机、智能手环等长待机产品。
四、封装与典型应用场景
DW01A采用SOT23-6封装（尺寸约2.9×1.6×1.1mm），体积紧凑易集成，典型应用场景包括：
- 消费电子：蓝牙耳机、智能手环、智能手表、MP3/MP4；
- 移动电源：单节便携充电宝的电池保护；
- 物联网终端：低功耗传感器节点、智能门锁备用电池；
- 工业设备：户外手持仪器、车载辅助设备（宽温需求场景）。
五、环境适应性优势
-40℃~+85℃的宽工作温度范围，使DW01A可在极端环境下稳定工作：低温场景（如北方户外冬季）下仍能正常检测电池电压并触发保护；高温场景（如车内暴晒、工业高温车间）下无参数漂移，确保电池安全。
DW01A凭借可靠的保护功能、低功耗及宽温适应性，成为单节锂电池应用的高性价比保护方案，广泛适配各类便携与工业级产品。
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