제품 상세 정보

Number of series cells 1, 2, 3, 4 Charge current (max) (A) 3 Vin (max) (V) 24 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3 Battery charge voltage (max) (V) 18.8 Absolute max Vin (max) (V) 30 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, Solar input/MPPT, USB D+/D-/BC1.2 integrated, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 6 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1, 2, 3, 4 Charge current (max) (A) 3 Vin (max) (V) 24 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3 Battery charge voltage (max) (V) 18.8 Absolute max Vin (max) (V) 30 Control topology Switch-Mode Buck Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, Solar input/MPPT, USB D+/D-/BC1.2 integrated, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 6 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN-HR (RQM) 29 16 mm² 4 x 4
  • High power density, high integration buck charger for 1-4 cell batteries
    • Integrates switching MOSFETs, BATFET
    • Integrates input and charging current sensing
  • Highly efficient
    • 750-kHz or 1.5-MHz switching frequencies
    • 3-A charging current with 10-mA resolution
      • 96.5% efficient: 16-V battery at 3A from 20V
  • Supports a wide range of input sources
    • Autonomously sampled open circuit voltage (V OC) maximum power point tracking (MPPT) for charging from a photovoltaic panel
    • 3.6-V to 24-V wide input operating voltage range with 30-V absolute maximum rating
    • Maximum power tracking with input voltage dynamic power management (VINDPM) up to 22 V and input current dynamic power management (IINDPM) up to 3.3 A
    • Detects USB BC1.2, HVDCP and non-standard adapters
  • Dual-input power mux controller (optional) for source selection
  • Narrow voltage DC (NVDC) power path
  • Powers USB port from battery (USB OTG)
    • 5-V to 12-V OTG buck-boost output voltage with 10-mV resolution
    • OTG output current regulation up to 2 A with 40-mA resolution
  • Flexible autonomous and I 2C mode for optimal system performance
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • Low battery quiescent current
    • 17 µA for battery only operation
    • 500 nA in Charger Shutdown Mode
  • High accuracy
    • -0.25% to +0.65% charge voltage regulation for 2S batteries
    • ±5% charge current regulation
    • ±5% input current regulation
  • Safety
    • Thermal regulation and thermal shutdown
    • Input/battery OVP and OCP
    • Converter MOSFETs OCP
    • Charging safety timer
  • Package
    • 29-Pin 4 mm × 4 mm QFN
  • High power density, high integration buck charger for 1-4 cell batteries
    • Integrates switching MOSFETs, BATFET
    • Integrates input and charging current sensing
  • Highly efficient
    • 750-kHz or 1.5-MHz switching frequencies
    • 3-A charging current with 10-mA resolution
      • 96.5% efficient: 16-V battery at 3A from 20V
  • Supports a wide range of input sources
    • Autonomously sampled open circuit voltage (V OC) maximum power point tracking (MPPT) for charging from a photovoltaic panel
    • 3.6-V to 24-V wide input operating voltage range with 30-V absolute maximum rating
    • Maximum power tracking with input voltage dynamic power management (VINDPM) up to 22 V and input current dynamic power management (IINDPM) up to 3.3 A
    • Detects USB BC1.2, HVDCP and non-standard adapters
  • Dual-input power mux controller (optional) for source selection
  • Narrow voltage DC (NVDC) power path
  • Powers USB port from battery (USB OTG)
    • 5-V to 12-V OTG buck-boost output voltage with 10-mV resolution
    • OTG output current regulation up to 2 A with 40-mA resolution
  • Flexible autonomous and I 2C mode for optimal system performance
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • Low battery quiescent current
    • 17 µA for battery only operation
    • 500 nA in Charger Shutdown Mode
  • High accuracy
    • -0.25% to +0.65% charge voltage regulation for 2S batteries
    • ±5% charge current regulation
    • ±5% input current regulation
  • Safety
    • Thermal regulation and thermal shutdown
    • Input/battery OVP and OCP
    • Converter MOSFETs OCP
    • Charging safety timer
  • Package
    • 29-Pin 4 mm × 4 mm QFN

The BQ25672 is a fully integrated switch-mode buck charger for 1-4 cell Li-ion batteries and Li-polymer batteries. The BQ25672 is also capable of producing a buck-boost, 5 V to 12 V, output voltage on VBUS when operating in OTG Mode. The integration includes the switching MOSFETs, input and charging current sensing circuits, the battery FET and all the loop compensation of the converter. It uses NVDC power path management, regulating the system not dropping below a configurable minimum system voltage. When system power exceeds the input source rating, battery supplement mode supports the system without overloading the input source. also maximizes power from photovoltaic panels using its built-in V OC scaling MPPT algorithm.

The BQ25672 is a fully integrated switch-mode buck charger for 1-4 cell Li-ion batteries and Li-polymer batteries. The BQ25672 is also capable of producing a buck-boost, 5 V to 12 V, output voltage on VBUS when operating in OTG Mode. The integration includes the switching MOSFETs, input and charging current sensing circuits, the battery FET and all the loop compensation of the converter. It uses NVDC power path management, regulating the system not dropping below a configurable minimum system voltage. When system power exceeds the input source rating, battery supplement mode supports the system without overloading the input source. also maximizes power from photovoltaic panels using its built-in V OC scaling MPPT algorithm.

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관심 가지실만한 유사 제품

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비교 대상 장치와 유사한 기능
BQ25792 활성 듀얼 입력 셀렉터와 USB PD 3.0 OTG 출력을 지원하는 I2C 제어, 5A, 1-4 셀 벅 부스트 충전기 This product is 5-A, 1-S to 4-S I2C buck-boost switching charger with autonomous charging and integrated FETs

기술 자료

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5개 모두 보기
유형 직함 날짜
* Data sheet BQ25672 I2C Controlled, 1- to 4-Cell, 3-A Buck Battery Charger with Dual-Input Selector, MPPT for Solar Panels and Integrated ADC datasheet (Rev. B) PDF | HTML 2023/07/26
Application note Increasing NVCD Battery Chargers' Discharge Current PDF | HTML 2024/01/10
Application note State of Charge Estimation Using Smart Battery Charger PDF | HTML 2021/10/11
User guide BQ25672 Evaluation Module (Rev. A) PDF | HTML 2021/10/01
Certificate BQ25672EVM EU RoHS Declaration of Conformity (DoC) 2020/12/28

설계 및 개발

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

평가 보드

BQ25672EVM — 듀얼 입력 및 MPPT를 지원하는 I²C 제어, 1~4셀, 3A 벅 충전기용 BQ25672 평가 모듈

BQ25672EVM 평가 모듈(EVM)은 BQ25672 장치를 평가하는 데 사용됩니다. BQ25672는 HOTROD(QFN) 패키지의 통합 스위치 모드 벅 배터리 충전 관리 장치로, 6V~24V 입력 범위의 1~4 시리즈 셀 리튬 이온 및 리튬 폴리머 배터리용으로 제작되었으며 750KHz 및 1500KHz의 프로그래밍 가능 스위칭 주파수를 지원합니다. 충전 및 시스템 설정이 포함된 I2C 직렬 인터페이스는 장치를 진정으로 유연한 솔루션으로 만듭니다. 
사용 설명서: PDF | HTML
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애플리케이션 소프트웨어 및 프레임워크

TI-CHARGER-GUI — USB2ANY 및 배터리 충전 평가 모듈과 함께 사용하기 위한 GUI 소프트웨어

TI-CHARGER-GUI는 배터리 충전기 제품의 평가, 설계, 구성 또는 테스트 프로세스를 지원하는 웹 기반 또는 독립형 그래픽 사용자 인터페이스를 제공합니다. 이 소프트웨어는 레지스터에 대한 완전한 액세스 기능과 명령 전송을 위한 간편한 인터페이스를 제공합니다.
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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.

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