開發模組 (EVM) 的 GUI
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.
技術文件
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檢視所有 5 | 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | Programmable MultiChemistry Fast-Charge Management IC datasheet (Rev. D) | 2009年 12月 7日 | |
| Product overview | Battery Management Solutions for Point of Sale Systems | 2014年 8月 18日 | ||
| Application note | U-504 Using the bq2000/T to Control Fast Charge (Rev. B) | 2004年 12月 2日 | ||
| User guide | DV2000S1 Multi-Chemistry Switching Charger Development System User's Guide (Rev. A) | 2000年 5月 31日 | ||
| Application note | High Efficiency Dual Chemistry Charger Using the bq2000 | 1999年 9月 5日 |
設計與開發
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開發板
BQ2000EVM — 用於電池充電管理 IC 的評估模組
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 (...)
使用指南: PDF
參考設計
TIDA-00026 — 可編程、多化學物電池快速充電管理參考設計
This reference design is a programmable, monolithic IC solution for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. It chooses the proper battery chemistry (either nickel or lithium) and (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| PDIP (P) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| TSSOP (PW) | 8 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。