Proprietary and Confidential 上海亚纵电子有限公司 科圆锂电保护方案介绍 FAE:Floyd Yan 2006-09-18 CARETTA Proprietary and Confidential SEP 2006 INTEGRATED CIRCUITS

Proprietary and Confidential ＣＲ６００Ｘ与传统方案的应用电路比较 CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential CR600X对比传统方案的优势 只需一个外部元件,占用空间小 研发工作强度和周期大大下降,更容易通过客户验证 采购环节和资材管理更加简化 IPQC与QA工作量大大下降 故障率低 生产返修率低 生产所需工时减少,产能增加一倍以上 具有ＥＳＤ防护能力 能满足电芯总内阻低于１３０mΩ的要求 ＢＯＭ成本比传统方案还低 CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential BOM Cost Benefits (2) CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential Performance Analysis CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential ＣＲ６００Ｘ特性介绍 无需外接ＭＯＳＦＥＴ 应用简单，只需一个外部电容 等效２４＼２９ mΩ Rds(ON)片上ＭＯＳＦＥＴ 过充电流保护 三重过放电流保护（过放１，过放2和负载短路保护） 充电器检测功能 过充电流检测 延迟时间由内部产生,无需外接电容 低工作电流损耗: 工作模式:典型值2.0uA;最大值4.0uA 休眠模式：最大0.1uA 高精度电压检测： 　　　 过充检测电压：３．９～４．４Ｖ；步长１２．５mＶ；精度：±２５mV 过充回滞电压：０．０～０．４Ｖ；精度：±２５mV 过放检测电压：２．０～３．０Ｖ；步长１２．５mＶ；精度：±２５mV 　　　 过放回滞电压：０．０～０．７Ｖ；精度：±２５mV CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential 电气特性（１） CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential 电气特性（２） CARETTA Proprietary and Confidential SEP 2006 INTEGRATED CIRCUITS

Proprietary and Confidential 产品系列 CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential 产品品质保障 完善的保护电路 过流\过充\过放\短路\过热保护 所有产品都有内含的ESD保护电路 轻易通过8~12KV ESD测试 欧洲无铅标准制程,不含有毒物质 提供SGS和不含有毒物质测试报告 产品不良率小于100PPM 产品一致性好 CR6000是电流控制型,传统模式为电压控制型, 所以精度更高,一直性更好 CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential 功能模式 正常工作模式 过充电压情况 过充电流情况 过放电压情况 过放电流情况 负载短路情况 充电器检测 延时电路 CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential 演示板电路 CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

充电终止电压与精度对于锂电池是至关重要的参数 Proprietary and Confidential 锂电池的特性 1%的终止电压变化，将使容量改变8% 充电终止电压对电芯寿命的影响 1%的电压误差将会导致寿命变化1/3 充电终止电压与精度对于锂电池是至关重要的参数 CARETTA Proprietary and Confidential INTEGRATED CIRCUITS SEP 2006

Proprietary and Confidential 锂电池的使用和保护 ----基本原则 电流: 瞬时值<5C 平均值<1.2C 电压: 锂电池的电压过高或者过低都会造成严重问题 锂电池电压划分的几个区域. ===================== 高压危险区 ----------------保护线路过充保护电压(4.275~4.35V) 高压警戒区 ----------------锂离子电池充电限制电压4.20V 正常使用区 ----------------锂离子电池放电终止电压(2.75~3.00V) 低压警戒区 ----------------保护线路过放保护电压(2.3~2.5V) 低压危险区 否则 充电终止后不能接受涓流充电 CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential 锂电保护板测试仪 ---- 超思思 LBCY-03 MOSFET S-8261 P+/B+ P- B- Test S-8261 Note: P+ / B+ Common Pin 8 7 6 5 4 3 2 1 B+ P+ B-/P- c1 CR600x Test CR600X Note: Test result Cancel it, Iope≈2.0uA Add it, I’ope≈8.0uA So Iope ≈I’ope – 6uA Note: P- / B- Common Pin CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential 锂电保护板测试仪 ---- 泰斯 PTS-2007C MOSFET S-8261 P+/B+ P- B- Test S-8261 Note: P+ / B+ Common Pin 8 7 6 5 4 3 2 1 B+ P+ B-/P- c1 CR600x Test CR600X Note: P- / B- Common Pin P-(P+) SOCKET-25Pin 4.275V 2.50V 3.6V-P 3.6V-N SETED: N/P-MOSFET CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS

Proprietary and Confidential ＥＮＤ 谢谢！！ 刘世伟/ David Liu 手机:13143410366(深圳) 上海亚纵电子有限公司 Asiaspeed (SH) Electronics Co.,Ltd 深圳市福田区莲花路万科金色家园A栋1103室 Rm,1103,Building A,Vanke Golden Housetown,Lianhua Road, Shenzhen City Guangdong Province,China E-mail:　Davidliu@asia-speed.com 电话:0755-83147405, 83147204 传真:0755-83193685 MSN:　shiwei_liu@126.com   CARETTA SEP 2006 Proprietary and Confidential INTEGRATED CIRCUITS