제품 상세 정보

Number of series cells 1, 2, 3, 4 Charge current (max) (A) 8 Vin (max) (V) 24 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 1.024 Battery charge voltage (max) (V) 19.2 Absolute max Vin (max) (V) 30 Control topology Switch-Mode Buck Control interface I2C Features IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1, 2, 3, 4 Charge current (max) (A) 8 Vin (max) (V) 24 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 1.024 Battery charge voltage (max) (V) 19.2 Absolute max Vin (max) (V) 30 Control topology Switch-Mode Buck Control interface I2C Features IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (RUY) 28 16 mm² 4 x 4
  • Host-controlled NVDC-1 1S-4S Battery Charge Controller with 4.5-24 V Input Range
    • Support SMBus (bq24770) and I2C (bq24773)
    • System Instant-on Operation with no Battery or Deeply Discharged Battery
    • Supplement Mode with Synchronous BATFET Control when Adaptor is fully loaded
  • Ultra Fast Input Current DPM at 100 µs
  • Ultra Low Quiescent Current of 600 µA and High PFM Light Load Efficiency >80% at 20 mA Load to Meet Energy Star and ErP Lot6.
  • High Accuracy Power / Current Monitor for CPU Throttling
    • Comprehensive PROCHOT Profile
    • Input and Battery Current Monitor (IADP/IBAT)
    • System Power Monitor (PMON)
  • Programmable Input Current Limit, Charge Voltage, Charge Current and Minimum System Voltage Regulation
    • ±0.5% Charge Voltage (16 mV/step)
    • ±2% Input/charge Current (64 mA/step)
    • ±2% 40x Input / 16x Discharge / 20x Charge Current Monitor
  • Support Battery LEARN Function
  • High Integration
    • NMOS ACFET and RBFET Driver
    • PMOS battery FET Gate Driver
    • Internal Loop Compensation
    • Independent Comparator
    • Automatic Trickle Charge to Wake up Gas Gauge
  • 600kHz to 1.2MHz Programmable Switching Frequency
  • Host-controlled NVDC-1 1S-4S Battery Charge Controller with 4.5-24 V Input Range
    • Support SMBus (bq24770) and I2C (bq24773)
    • System Instant-on Operation with no Battery or Deeply Discharged Battery
    • Supplement Mode with Synchronous BATFET Control when Adaptor is fully loaded
  • Ultra Fast Input Current DPM at 100 µs
  • Ultra Low Quiescent Current of 600 µA and High PFM Light Load Efficiency >80% at 20 mA Load to Meet Energy Star and ErP Lot6.
  • High Accuracy Power / Current Monitor for CPU Throttling
    • Comprehensive PROCHOT Profile
    • Input and Battery Current Monitor (IADP/IBAT)
    • System Power Monitor (PMON)
  • Programmable Input Current Limit, Charge Voltage, Charge Current and Minimum System Voltage Regulation
    • ±0.5% Charge Voltage (16 mV/step)
    • ±2% Input/charge Current (64 mA/step)
    • ±2% 40x Input / 16x Discharge / 20x Charge Current Monitor
  • Support Battery LEARN Function
  • High Integration
    • NMOS ACFET and RBFET Driver
    • PMOS battery FET Gate Driver
    • Internal Loop Compensation
    • Independent Comparator
    • Automatic Trickle Charge to Wake up Gas Gauge
  • 600kHz to 1.2MHz Programmable Switching Frequency

The bq2477x is high-efficiency, synchronous, NVDC-1 battery charge controllers, offering low component count for space-constraint, multi-chemistry battery charging applications.

The power path management allows the system to be regulated at battery voltage but does not drop below system minimum voltage (programmable). With this feature, the system keeps operating even when the battery is completely discharged or removed. The power path management allows the battery to provide supplement current to the system to keep the input supply from being overloaded.

The bq2477x provides drivers and power path management for N-channel ACFET and reverse blocking FET. The devices provides driver to control NVDC operation of external P-channel battery FET. It also drives high-side and low-side MOSFETs of the switching regulator.

The bq2477x monitors adapter current (IADP), battery charge/discharge current (IBAT) and system power (PMON). The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.

The bq2477x is high-efficiency, synchronous, NVDC-1 battery charge controllers, offering low component count for space-constraint, multi-chemistry battery charging applications.

The power path management allows the system to be regulated at battery voltage but does not drop below system minimum voltage (programmable). With this feature, the system keeps operating even when the battery is completely discharged or removed. The power path management allows the battery to provide supplement current to the system to keep the input supply from being overloaded.

The bq2477x provides drivers and power path management for N-channel ACFET and reverse blocking FET. The devices provides driver to control NVDC operation of external P-channel battery FET. It also drives high-side and low-side MOSFETs of the switching regulator.

The bq2477x monitors adapter current (IADP), battery charge/discharge current (IBAT) and system power (PMON). The flexibly programmed PROCHOT output goes directly to CPU for throttle back when needed.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
BQ25672 활성 듀얼 입력 셀렉터와 통합 ADC를 지원하는 I²C 제어, 1~4 셀 3A 벅 배터리 충전기 This product is 3-A, 1-S to 4-S I2C buck switching charger with autonomous charging and integrated FETs

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
3개 모두 보기
유형 직함 날짜
* Data sheet bq2477x NVDC Battery Charge Controller With System Power Monitor and Processor Hot Indicator datasheet (Rev. C) PDF | HTML 2016/12/19
Technical article Using battery charger ICs to shrink your design for vacuum robots PDF | HTML 2018/03/21
EVM User's guide bq2477x EVM User’s Guide (Rev. C) 2016/11/08

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

BQ24773EVM-540 — SMBus를 지원하는 NVDC 배터리 충전 컨트롤러 평가 모듈

The bq2477x evaluation module (EVM) is an SMBus controlled NVDC-1 charge controller with N-CH MOSFET Selector and Current Monitoring. The input voltage range, for the buck converter, is between 6 and 24 V, with a programmable output of 1–4 cells (bq2477x) and a charge output current range of (...)

사용 설명서: PDF
TI.com에서 구매 불가
애플리케이션 소프트웨어 및 프레임워크

BQSTUDIO — bqStudio(Battery Management Studio) 소프트웨어

bqStudio(Battery Management Studio)는 TI 배터리 관리 제품의 평가, 설계, 구성, 테스트 또는 기타 활용 프로세스를 지원하는 견고한 종합 툴을 제공합니다. 여기에는 실시간 감시, 그래프 및 로깅 지원, 명령 전송을 위한 간편한 인터페이스, 직접 저수준 통신 및 I/O, 구성, 보정, 학습 주기 수행, 장치를 생산 단계로 가져가기 위한 유용한 파일 생성 등 레지스터 및 데이터 메모리에 대한 전체 액세스를 제공하는 기능은 물론, 자동화된 가이드 지원도 포함됩니다.

bq20xxx 및 bq30xxx와 같은 (...)
패키지 CAD 기호, 풋프린트 및 3D 모델
WQFN (RUY) 28 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

지원 및 교육

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