제품 상세 정보

Number of series cells 1 Charge current (max) (A) 2.5 Vin (max) (V) 10 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), Input OVP, Power Path Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 2.5 Vin (max) (V) 10 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.44 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), Input OVP, Power Path Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 49 9 mm² 3 x 3 VQFN (RGE) 24 16 mm² 4 x 4
  • High-Efficiency Switch Mode Charger with Separate Power Path Control
    • Instantly Startup System from a Deeply Discharged Battery or No Battery
  • 20V input rating, with 10.5V Over-Voltage Protection (OVP)
  • Integrated FETs for Up to 2.5A Charge Rate
  • Highly Integrated Battery N-Channel MOSFET Controller for Power Path Management
  • Safe and Accurate Battery Management Functions
    • 0.5% Battery Regulation Accuracy
    • 10% Charge Current Accuracy
  • Voltage-based, NTC Monitoring Input (TS)
    • JEITA Compatible
  • Thermal Regulation Protection for Output Current Control
  • BAT Short-Circuit Protection
  • Soft-Start Feature to Reduce Inrush Current
  • Thermal Shutdown and Protection
  • Available in Small 49-ball WCSP or QFN-24 Packages
  • High-Efficiency Switch Mode Charger with Separate Power Path Control
    • Instantly Startup System from a Deeply Discharged Battery or No Battery
  • 20V input rating, with 10.5V Over-Voltage Protection (OVP)
  • Integrated FETs for Up to 2.5A Charge Rate
  • Highly Integrated Battery N-Channel MOSFET Controller for Power Path Management
  • Safe and Accurate Battery Management Functions
    • 0.5% Battery Regulation Accuracy
    • 10% Charge Current Accuracy
  • Voltage-based, NTC Monitoring Input (TS)
    • JEITA Compatible
  • Thermal Regulation Protection for Output Current Control
  • BAT Short-Circuit Protection
  • Soft-Start Feature to Reduce Inrush Current
  • Thermal Shutdown and Protection
  • Available in Small 49-ball WCSP or QFN-24 Packages

The bq24272 is a highly integrated single cell Li-Ion battery charger and system power path management device targeted for space-limited, portable applications with high capacity batteries. The single cell charger operates from a dedicated power source such as a wall adapter or wireless power supply for a versatile solution.

The power path management feature allows the bq24272 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This allows for proper charge termination and timer operation. The system voltage is regulated to the battery voltage but will not drop below 3.5V. This minimum system voltage support enables the system to run with a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or no battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This enables the use of a smaller adapter.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, the bq24272 offers a voltage-based battery pack thermistor monitoring input (TS) that monitors battery temperature for safe charging.

The bq24272 is a highly integrated single cell Li-Ion battery charger and system power path management device targeted for space-limited, portable applications with high capacity batteries. The single cell charger operates from a dedicated power source such as a wall adapter or wireless power supply for a versatile solution.

The power path management feature allows the bq24272 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit. This allows for proper charge termination and timer operation. The system voltage is regulated to the battery voltage but will not drop below 3.5V. This minimum system voltage support enables the system to run with a defective or absent battery pack and enables instant system turn-on even with a totally discharged battery or no battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This enables the use of a smaller adapter.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded. Additionally, the bq24272 offers a voltage-based battery pack thermistor monitoring input (TS) that monitors battery temperature for safe charging.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
2개 모두 보기
유형 직함 날짜
* Data sheet 2.5A, Single Input, Single Cell Switchmode Li-Ion Battery Charger with PowerPath datasheet 2012/03/29
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024/04/30

설계 및 개발

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

지원 소프트웨어

SLUC345 bq2427xEVM_SW_V0001.zip

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
배터리 충전기 IC
BQ24270 전원 경로 관리 및 D+/D- 감지를 지원하는 1셀, 1.5A, I2C 제어 벅 배터리 충전기 BQ24271 전원 경로 관리를 지원하는 1셀, 1.5A, I2C 제어 벅 배터리 충전기 BQ24272 전원 경로 관리를 지원하는 2.5A, 싱글 입력, 싱글 셀 스위치 모드 리튬 이온 배터리 충전기
패키지 CAD 기호, 풋프린트 및 3D 모델
DSBGA (YFF) 49 Ultra Librarian
VQFN (RGE) 24 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

지원 및 교육

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