홈 배터리 관리 IC 배터리 충전기 IC
홈
배터리 관리 IC
배터리 충전기 IC

BQ24076

활성

독립형 1셀 1.5A 선형 충전기, 전원 경로 및 4.4V VBAT

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
신규 BQ25185 활성 전원 경로 및 태양광 입력을 지원하는 1셀, 1A 독립형 선형 배터리 충전기 BQ25185 comes with wider Vin, higher battery discharge and solar input support.
비교 대상 장치와 유사한 기능
BQ25180 활성 조정 전원 경로를 지원하는 1A 리튬 이온 및 LiFePO4 I²C 프로그래머블 선형 충전기, WCSP 패키지 This product is 1-A Li-ion and LiFePO4 I²C programmable linear charger with regulated power path in a WCSP package

BQ24076

활성
데이터시트 지금 주문

제품 상세 정보

Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 6.4 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.4 Battery charge voltage (max) (V) 4.4 Absolute max Vin (max) (V) 28 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1.5 Vin (max) (V) 6.4 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.4 Battery charge voltage (max) (V) 4.4 Absolute max Vin (max) (V) 28 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.35 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGT) 16 9 mm² 3 x 3
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-Based Dynamic Power Management (VIN-DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating with Overvoltage Protection
  • Integrated Dynamic Power Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 1.5-A Charge Current with Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 1.5 A for Wall Adapters
  • System Output Tracks Battery Voltage
  • Battery Disconnect Function with SYSOFF Input
  • Programmable Pre-Charge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-up Sequence Limits Inrush Current
  • Battery Charge Voltage, VBAT:
    • bq24076 - 4.4 V (typ)
    • bq24078 - 4.35 V (typ)
  • Status Indication – Charging/Done, Power Good
  • Fully Compliant USB Charger
    • Selectable 100-mA and 500-mA Maximum Input Current
    • 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard
    • Input-Based Dynamic Power Management (VIN-DPM) for Protection Against Poor USB Sources
  • 28-V Input Rating with Overvoltage Protection
  • Integrated Dynamic Power Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
  • Supports up to 1.5-A Charge Current with Current Monitoring Output (ISET)
  • Programmable Input Current Limit up to 1.5 A for Wall Adapters
  • System Output Tracks Battery Voltage
  • Battery Disconnect Function with SYSOFF Input
  • Programmable Pre-Charge and Fast-Charge Safety Timers
  • Reverse Current, Short-Circuit, and Thermal Protection
  • NTC Thermistor Input
  • Proprietary Start-up Sequence Limits Inrush Current
  • Battery Charge Voltage, VBAT:
    • bq24076 - 4.4 V (typ)
    • bq24078 - 4.35 V (typ)
  • Status Indication – Charging/Done, Power Good

The bq2407x is a family of integrated Li-Ion battery linear chargers with system power path management functionality targeted at space-constrained portable applications. The devices operate from either a USB port or an AC adapter and support charge currents up to 1.5 A. The input voltage range with input overvoltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the bq2407x to meet USB-IF inrush current specifications. Additionally, the input dynamic power management (VIN-DPM) prevents system crashes because of incorrectly configured USB sources and maximizes the power available from the adapter.

The bq2407x features dynamic power path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold; thus, supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination and enables the system to run with a defective or absent battery pack.

Additionally, the regulated system input enables instant system turn-on when plugged in even with a totally discharged battery. The power-path management architecture also lets the battery supplement the system current requirements when the adapter cannot deliver the peak system currents, thus enabling 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. The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The input current limit and charge current are programmable using external resistors.

The bq2407x is a family of integrated Li-Ion battery linear chargers with system power path management functionality targeted at space-constrained portable applications. The devices operate from either a USB port or an AC adapter and support charge currents up to 1.5 A. The input voltage range with input overvoltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the bq2407x to meet USB-IF inrush current specifications. Additionally, the input dynamic power management (VIN-DPM) prevents system crashes because of incorrectly configured USB sources and maximizes the power available from the adapter.

The bq2407x features dynamic power path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold; thus, supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination and enables the system to run with a defective or absent battery pack.

Additionally, the regulated system input enables instant system turn-on when plugged in even with a totally discharged battery. The power-path management architecture also lets the battery supplement the system current requirements when the adapter cannot deliver the peak system currents, thus enabling 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. The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The input current limit and charge current are programmable using external resistors.
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기술 문서

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모두 보기5
유형 직함 날짜
* Data sheet bq2407x 1.5-A High Battery Voltage Li-Ion Battery Chargers with Power-Path Management IC datasheet (Rev. A) PDF | HTML 2017/12/14
User guide Achieving Ship Mode With the BQ24075, BQ24076, BQ24078, and BQ24079 PDF | HTML 2021/11/05
Application note Configuring Standalone Linear Power Path Chargers (Rev. A) PDF | HTML 2020/04/06
Application note Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 2018/05/01
EVM User's guide bq24076, bq24078 1.5-A Single-Chip Li-Ion and Li-Polymer CM IC EVM 2017/10/09

설계 및 개발

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

평가 보드

BQ24076EVM-015 — bq24076 1.5A 단일 칩 리튬 이온 및 리튬 폴리머 충전기 관리 IC 평가 모듈

The bq24076 evaluation module (EVM) provides a convenient method for evaluating the performance of a charge management and system power solution for portable applications using the bq24076 product. The charger is designed to deliver up to 1.5 A of continuous current to the system or charger for (...)
사용 설명서: PDF
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거버(Gerber) 파일

Linear Charger NTC Calculator

SLUC670.ZIP (350 KB)
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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

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