BQ2000
- Safe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery Packs
- High-Frequency Switching Controller for Efficient and Simple Charger Design
- Pre-Charge Qualification for Detecting Shorted, Damaged, or Overheated Cells
- Fast-Charge Termination by Peak Voltage (PVD) for Nickel chemistries, Minimum Current for Li-Ion chemistries, Maximum Temperature, and Maximum Charge Time
- Selectable Top-Off Mode for Achieving Maximum Capacity in NiMH Batteries
- Programmable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge Maintenance
- Built-in Battery Removal and Insertion Detection
- Sleep Mode for Low Power Consumption
- APPLICATIONS
- Multi-Chemistry Charger
- Nickel Charger
- High-Power, Multi-Cell Charger
The bq2000 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000 chooses the proper battery chemistry (either nickel or lithium) and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable, undercharged, or overcharged conditions, and allows accurate and safe termination of fast charge
Depending on the chemistry, the bq2000 provides a number of charge termination criteria:
- Peak voltage, PVD (for NiCd and NiMH)
- Minimum charge current (for Li-Ion)
- Maximum temperature
- Maximum charge time
For safety, the bq2000 inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000 uses trickle-charge to condition the battery. For NiMH batteries, the bq2000 provides an optional top-off charge to maximize the battery capacity.
The integrated high-speed comparator allows the bq2000 to be the basis for a complete, high-efficiency battery charger circuit for both nickel-based and lithium-based chemistries.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | Programmable MultiChemistry Fast-Charge Management IC 数据表 (Rev. D) | 2009年 12月 7日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
产品概述 | Battery Management Solutions for Point of Sale Systems | 2014年 8月 18日 | ||||
EVM 用户指南 | BQ2000EVM | 2007年 2月 13日 | ||||
应用手册 | U-504 Using the bq2000/T to Control Fast Charge (Rev. B) | 2004年 12月 2日 | ||||
用户指南 | DV2000S1 Multi-Chemistry Switching Charger Development System User's Guide (Rev. A) | 2000年 5月 31日 | ||||
应用手册 | High Efficiency Dual Chemistry Charger Using the bq2000 | 1999年 9月 5日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
BQ2000EVM — 用于电池充电管理 IC 的评估模块
The BQ2000EVM provides a convenient method for evaluating the performance of a charge management solution for portable applications using either the bq2000 or bq2000T. A complete and tested charger is presented. The charger is designed to deliver up to 1.0 A of continuous output current. The (...)
TIDA-00026 — 可编程多化合物快速充电管理参考设计
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
PDIP (P) | 8 | Ultra Librarian |
SOIC (D) | 8 | Ultra Librarian |
TSSOP (PW) | 8 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
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