BQ2002D 具有 dT/dt 终端的镍镉电池/镍氢电池闸控充电管理 IC

BQ2002D 描述

The bq2002D/T Fast-Charge IC are low-cost CMOS battery-charge controllers able to provide reliable charge termination for both NiCd and NiMH battery applications. Controlling a current-limited or constant-current supply allows the bq2002D/T to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002D/T integrates fast charge with optional top-off and pulsed-trickle control in a single IC for charging one or more NiCd or NiMH battery cells.

Fast charge is initiated on application of the charging supply or battery replacement. For safety, fast charge is inhibited if the battery temperature and voltage are outside configured limits.

Fast charge is terminated by any of the following:

• Rate of temperature rise
• Maximum voltage
• Maximum temperature
• Maximum time

After fast charge, the bq2002T optionally tops-off and pulse-trickles the battery per the pre-configured limits

	BQ2002D
# Series Cells	Multiple
Charge Current(Max)(A)	>2
Charge Status Outputs	1
Control Topology	Current Limited
Primary Charge Termination Method	dT/dt
Pin/Package	8SOIC
Vin(Max)(V)	7

BQ2002D 特性

• Fast charge of nickel cadmium or nickel-metal hydride batteries
• Direct LED output displays charge status
• Fast-charge termination by rate of rise of temperature, maximum voltage, maximum temperature, and maximum time
• Internal band-gap voltage reference
• Optional top-off charge (bq2002T only)
• Selectable pulse-trickle charge rates (bq2002T only)
• Low-power mode
• 8-pin 300-mil DIP or 150-mil SOIC

BQ2002D 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
BQ2002DSN	ACTIVE	0 to 70	1.00 | 1ku	SOIC (D) | 8	75 | TUBE
BQ2002DSNG4	ACTIVE	0 to 70	1.00 | 1ku	SOIC (D) | 8	75 | TUBE
BQ2002DSNTR	ACTIVE	0 to 70	0.85 | 1ku	SOIC (D) | 8	2500 | LARGE T&R
BQ2002DSNTRG4	ACTIVE	0 to 70	0.85 | 1ku	SOIC (D) | 8	2500 | LARGE T&R

BQ2002D 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
BQ2002DSN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2002DSN	BQ2002DSN
BQ2002DSNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2002DSNG4	BQ2002DSNG4
BQ2002DSNTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2002DSNTR	BQ2002DSNTR
BQ2002DSNTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2002DSNTRG4	BQ2002DSNTRG4

BQ2002D 应用技术支持与电子电路设计开发资源下载

1. BQ2002D 数据资料 dataSheet 下载.PDF
2. TI 德州仪器电池管理产品选型与价格 . xls
3. 照明和显示屏电源选择指南 (PDF 1427 KB)
4. QFN Layout Guidelines (PDF 1279 KB)
5. 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
6. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
7. PowerPADTM Made Easy (PDF 57 KB)
8. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
9. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
10. 所选封装材料的热学和电学性质 (PDF 645 KB)
11. 高速数据转换 (PDF 1967 KB)

BQ2002D 相关工具

名称	型号	工具/软件类型
电池充电器的快速搜索选择工具	BATTERY_CHARGERS_SELECTION_TOOL	免费评估工具
温度传感设计软件	TEMPSENSE-SW	分析软件