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

BQ24072T

활성

TD를 지원하는 독립형 1셀 1.5A 선형 배터리 충전기, 전원 경로, 4.2V VBAT, 전압 기반 TS

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
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

BQ24072T

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) 4.2 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
  • 28 V Input lting with over-voltage protection
  • Integrated dynamic power path management (DPPM) function simultaneously and independently powers the system and charges the battery
  • System output tracks battery voltage (BQ24072T)
  • 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
  • Battery disconnect function with SYSOFF input
  • Reverse current, short-circuit and thermal protection
  • Flexible voltage based NTC thermistor input
  • Proprietary start up sequence limits inrush current
  • Status indication – charging/done, power good
  • Small 3 mm × 3 mm 16 Lead VQFN Package
  • 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 lting with over-voltage protection
  • Integrated dynamic power path management (DPPM) function simultaneously and independently powers the system and charges the battery
  • System output tracks battery voltage (BQ24072T)
  • 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
  • Battery disconnect function with SYSOFF input
  • Reverse current, short-circuit and thermal protection
  • Flexible voltage based NTC thermistor input
  • Proprietary start up sequence limits inrush current
  • Status indication – charging/done, power good
  • Small 3 mm × 3 mm 16 Lead VQFN Package

The BQ2407xT 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 AC adapter and support charge currents up to 1.5A. The input voltage range with input over-voltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the BQ2407xT to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN - DPM) prevents the charger from crashing incorrectly configure USB sources.

The BQ2407xT 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 permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, 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 BQ2407xT 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 AC adapter and support charge currents up to 1.5A. The input voltage range with input over-voltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the BQ2407xT to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN - DPM) prevents the charger from crashing incorrectly configure USB sources.

The BQ2407xT 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 permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, 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 BQ2407xT Standalone 1-Cell 1.5-A Linear Battery Charger with Power Path and Voltage-Based TS datasheet (Rev. C) PDF | HTML 2019/08/14
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
User guide bq24072/3/4/5/9(T) and bq24230/2 1.5-A Single-Chip Li-Ion (Rev. E) 2017/01/03
Application note Selecting the Best bq2407x/23x Single Cell Battery Charger for your Application 2012/11/08

설계 및 개발

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

평가 보드

BQ24072TEVM — BQ24072T 평가 모듈

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
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거버(Gerber) 파일

Linear Charger NTC Calculator

SLUC670.ZIP (350 KB)
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패키지 핀 다운로드
VQFN (RGT) 16 옵션 보기
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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

지원 및 교육

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