原标题：10串锂电保护方案

应用领域:电源电池

方案类型:模块板卡

主要芯片:CW1053

方案概述

功能特性

 过充电保护

• 阈值范围 4.175V~4.350V,25mV步进,±25mV精度过放电保护

• 阈值范围 2.300V~3.000V,100mV 步进,±80mV 精度 过电流保护

• 过流检测 1阈值范围 0.030V~0.100V,10mV 步进,±5mV精度

• 过流检测 2阈值范围 0.060V~0.200 V,20mV 步进,±5mV精度

• 短路保护 阈值范围 0.090V~0.600V,30mV步进,±10mV精度充放电过温保护过流保护后自动回复低功耗设计

• 工作状态 15A (25°C)

• 休眠状态 5A (25°C)

 封装形式:SSOP16/SOP16

应用领域

 电动工具

 电动自行车

 后备电源

 锂离子及锂聚合物电池包

基本描述

CW1053 系列产品是一款高度集成的 5 串锂离子电池或锂聚合物电池保护芯片。CW1053 为电池包提供过充、过放、过流和过温保护。

【CW1053 3-5节电池保护芯片】

The CW1053 series products are highly integrated protection ICs for 3 to 5 lithium‐ion and lithium polymer battery packs connected in series. CW1053 provides complete protection for battery pack by measure the voltage, current and temperature. Balance improves the discharging ability and the recycle loop life.

Features

• 3 to 5 cells adaptable by external pin setting

• Bleeding balance function

- Threshold from 3.900V to 4.250V, 50mV steps, Max 2mV difference between each cell

- Balance current set by the external resistors

• Overcharge protection

- Threshold from 4.175V to 4.350V, 25mV steps, ±20mV accuracy

• Over discharge protection

- Threshold from 2.300V to 3.000V, 100mV steps, ±80mV accuracy

• Excess current protection

Excess current 1:

- Threshold from 0.050V to 0.200V, 50mV steps, ±10mV accuracy

Excess current 2:

- Threshold from 0.200V to 0.500V, 100mV steps, ±25mV accuracy

Short circuits protection:

- threshold 0.500V or 0.800V, ±50mV accuracy

• Over temperature protection

• Pre-charge function

• Excess current protection auto-recover. Recover current adjustable

• Abnormal battery detect

• LED driver for battery capacity indication

• Low power dissipation

- Normal working 20μA (25℃)

- Sleep mode 0.5μA (25℃)

• Package type: TSSOP30

Application Field

• Power tools

• E‐bike

• Backup power supply

• Or other lithium‐ion or lithium polymer battery packs

Typical Application

Contact sales@cellwise-semi.com for information of CW1243/1233.