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.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | Programmable MultiChemistry Fast-Charge Management IC datasheet (Rev. D) | 2009/12/07 | |
Product overview | Battery Management Solutions for Point of Sale Systems | 2014/08/18 | ||
EVM User's guide | BQ2000EVM | 2007/02/13 | ||
Application note | U-504 Using the bq2000/T to Control Fast Charge (Rev. B) | 2004/12/02 | ||
User guide | DV2000S1 Multi-Chemistry Switching Charger Development System User's Guide (Rev. A) | 2000/05/31 | ||
Application note | High Efficiency Dual Chemistry Charger Using the bq2000 | 1999/09/05 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ2000EVM — 배터리 충전 관리 IC용 평가 모듈
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 — 프로그래머블 멀티 케미스트리 고속 충전 관리 레퍼런스 디자인
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
PDIP (P) | 8 | Ultra Librarian |
SOIC (D) | 8 | Ultra Librarian |
TSSOP (PW) | 8 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.