BQ25980
- 98.6% peak efficiency switched cap parallel charger supporting 2-cell battery and 8-A fast charge
- Patent pending dual phase switched cap architecture optimized for highest efficiency
- Input voltage is 2x battery voltage (7.0V to 9.54V)
- Output current is 2x of input current (up to 4.75A)
- Reduces power loss across input cable
- Integrated 7-A bypass mode fast charge
- 13mΩ charging path resistance for high current operation
- Dual-input power mux controller for source selection
-
Support wide range of input voltage
-
Up to 22-V operational input voltage
-
Maximum 40-V input voltage with optional external ACFET and 28-V without external ACFET
-
-
Parallel charging with synchronized dual BQ25980 operations for up-to 12-A charging current
- Integrated programmable protection features for safe operation
- Input over-voltage protection (BUSOVP) and battery over-voltage protection (BATOVP)
- Input over-current protection (BUSOCP) and battery over-current protection (BATOCP)
- Output over-voltage protection (VOUTOVP)
- Input under-current protection (BUSUCP) and input reverse-current protection (BUSRCP) to detect adapter unplug and prevent boost-back
- Input short-circuit protection (BUSSCP)
- Battery and connector temperature monitoring (TSBAT_FLT and TSBUS_FLT)
- Junction over-temperature protection (TDIE_FLT)
- Optional input over-voltage protection with external ACFET up to 40V
- Programmable settings for system optimization
- Interrupts and interrupt masks
- ADC readings and configuration
- Integrated 16-bit ADC for voltage, current and temperature monitoring
The BQ25980 is a 98.6% peak efficiency, 8-A battery charging solution using dual-phase switched cap architecture for 2-cell Li-ion battery. The switched cap architecture allows the cable current to be half the charging current, reducing the cable power loss and limiting temperature rise. The dual-phase architecture increases charging efficiency and reduces the input and output cap requirements. When used with a main charger such as BQ25790, the system enables the fast charging at the very low power loss from pre-charge through constant current (CC), constant voltage (CV), and termination.
The BQ25980 also supports 7-A bypass mode charge (previously called battery switch charge) through internal MOSFETs. The Rdson in bypass mode charging path is less than 13mΩ for high current operation. The integrated bypass mode allows backward compatibility of 10-V fast charging adapter to charge 2-cell battery.
The device supports dual input configuration through integrated mux control and driver for external N-FETs. It also allows single input with no external N-FET or single N-FET.
The device integrates all the necessary protection features to support safe charging, including input over-voltage and over-current protection, output over-voltage and over-current protection, input under-current and reverse-current protection, input short circuit protection, temperature sensing for the battery and cable, and junction over-temperature protection in both switched cap and bypass mode.
The device includes a 16-bit analog-to-digital converter (ADC) to provide VAC voltage, bus voltage, bus current, output voltage, battery voltage, battery current, input connector temperature, battery temperature, junction temperature, and other calculated measurements needed to manage the charging of the battery from the adapter, or wireless input, or power bank.

추가 정보
전체 데이터 시트 및 기타 정보를 사용할 수 있습니다. 지금 요청하기
기술 자료
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ25980EVM — 보호 평가 모듈이 통합된 2셀, 8A 스위치 커패시터 병렬 배터리 충전기
BQ25980SW-LINUX — BQ25980용 리눅스 드라이버
Linux 메인라인 상태
Linux 메인라인에서 사용 가능: 예
git.ti.com에서 구입 가능: 아니요
Linux 소스 파일
이 장치와 연계된 파일:
- drivers/power/supply/bq25980_charger.c
- drivers/power/supply/bq25980_charger.c
소스 파일
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
DSBGA (YFF) | 80 | 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.