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

BQ24072

활성

독립형 1셀 1.5A 선형 배터리 충전기, 전원 경로, 4.2V VBAT 및 VOUT=VBAT + 225mV

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
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

BQ24072

활성
데이터 시트 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) 4.2 Battery charge voltage (max) (V) 4.2 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) 4.2 Battery charge voltage (max) (V) 4.2 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
  • Functional Safety-Capable (BQ24074)
  • 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 (BQ24072)
  • Programmable termination current (BQ24074)
  • Battery disconnect function with SYSOFF input (BQ24075, BQ24079)
  • 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
  • Status indication – charging/done, power good
  • Safety-Related Certification:
    • IEC 62368-1 Certification (BQ24072)
  • 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
  • Functional Safety-Capable (BQ24074)
  • 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 (BQ24072)
  • Programmable termination current (BQ24074)
  • Battery disconnect function with SYSOFF input (BQ24075, BQ24079)
  • 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
  • Status indication – charging/done, power good
  • Safety-Related Certification:
    • IEC 62368-1 Certification (BQ24072)

The BQ2407x series of devices are integrated Li-Ion linear chargers and system power path management devices targeted at space-limited 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 the charger from crashing incorrectly configured USB sources.

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 series of devices are integrated Li-Ion linear chargers and system power path management devices targeted at space-limited 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 the charger from crashing incorrectly configured USB sources.

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 자료

star =TI에서 선정한 이 제품의 인기 문서
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13개 모두 보기
유형 직함 날짜
* Data sheet BQ2407x Standalone 1-Cell 1.5-A Linear Battery Charger with PowerPath datasheet (Rev. N) 2021/10/27
Design guide High-Efficiency 24-VAC to 5-V, 3.3-V Ref Design With Battery Backup and Charging PDF | HTML 2023/06/30
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
Technical article How to choose the right linear charger for your application PDF | HTML 2017/11/17
User guide bq24072/3/4/5/9(T) and bq24230/2 1.5-A Single-Chip Li-Ion (Rev. E) 2017/01/03
Analog Design Journal Battery-charging considerations for low-power applications 2016/04/26
Product overview Battery Management Solutions for Point of Sale Systems 2014/08/18
Product overview Power Bank Charger ICs 2013/02/25
Application note Selecting the Best bq2407x/23x Single Cell Battery Charger for your Application 2012/11/08
Analog Design Journal Designing a linear Li-Ion battery charger with power-path control 2009/05/01
Analog Design Journal Q2 2009 Issue Analog Applications Journal 2009/05/01
User guide Power-Path Li-Ion Charger Selection 2008/10/17

설계 및 개발

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

평가 보드

BQ24072EVM — BQ24072 USB 리튬 이온 배터리 충전기 및 전원 경로 관리 평가 모듈 | 선형

This user’s guide describes the bq24072/3/4/5/9(T) and bq24230/2 (bqTiny-III™) evaluation module (EVM). The EVM provides a convenient method for evaluating the performance of a charge management and system power solution for portable applications using the bq24072/3/4/5/9(T) and (...)

사용 설명서: PDF
TI.com에서 구매 불가
거버(Gerber) 파일

HPA282B Gerber Files

SLUC342.ZIP (207 KB)
다운로드
거버(Gerber) 파일

Linear Charger NTC Calculator

SLUC670.ZIP (350 KB)
다운로드
레퍼런스 디자인

TIDA-01395 — 스마트 온도 조절기용 넓은 Vin 컨버터 및 배터리 게이지를 지원하는 24V AC 전력계 레퍼런스 디자인

This reference design provides a low BOM count, high-efficiency power stage for smart thermostats and other gateway building automation designs. This power stage takes a 24-V AC input and produces a 5-V and 3.3-V output rail, which can power additional point-of-load converters if added. The (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-010932 — 배터리 백업을 지원하는 24VAC 전력계 레퍼런스 설계

이 레퍼런스 설계는 24VAC 전원을 사용하는 스마트 온도 조절기 및 기타 게이트웨이 건물 자동화 완제품을 위한 고효율 전력계 솔루션을 제공합니다. 이 전력계는 24VAC 입력을 받고 5V 및 3.3V 출력 레일을 생성하며, 추가될 경우 추가 부하 지점 컨버터에 전원을 공급할 수 있습니다. 이 설계는 LiPo 배터리 충전과 전원 공급이 가능한 상태에서 배터리 전원으로 원활하게 전환할 수 있습니다. 부스터팩 폼팩터를 사용하면 설계자가 다른 런치패드를 사용하여 이 전원 아키텍처를 평가할 수 있으며 LED 드라이버 및 전류 감지 기능이 (...)
Design guide: PDF
레퍼런스 디자인

TIDA-01358 — 스마트 온도 조절기용 24V AC 광범위 입력 전압 컨버터 및 배터리 백업 레퍼런스 설계

The TIDA-01358 reference design provides a low BOM cost, high efficiency power stage solution for smart thermostats and other gateway building automation end equipment. This power stage takes a 24Vac input and produces a 5V and 3.3V output rail which can power additional point-of-load converters (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-00044 — USB 리튬 이온 배터리 충전기 및 전력 경로 관리 레퍼런스 디자인

This reference design delivers up to 1000 mA of continuous current to the battery output when programmed with a resistor on the ISET pin and is programmed at the factory for ~540mA. The USB current limit modes are selected by the ISET2 pin and limits current to a maximum of 500 mA (logic high) or (...)
Test report: PDF
회로도: PDF
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VQFN (RGT) 16 Ultra Librarian
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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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