코드 예제 또는 데모
데이터시트
BQ24250
- High-Efficiency Switched-Mode Charger With
Separate Power Path - Startup System From Deeply Discharged or
Missing Battery - USB Charging Compliant
- Selectable Input Current Limit of 100 mA,
500 mA, 900 mA, 1.5 A, and 2 A
- Selectable Input Current Limit of 100 mA,
- BC1.2 Compatible D+, D– Detection
- In Host Mode (After I2C Communication Starts
and Before Watchdog Timer Times Out)- Programmable Battery Charge Voltage,
VBATREG - Programmable Charge Current (ICHG)
- Programmable Input Current Limit (ILIM)
- Programmable Input Voltage-Based Dynamic
Power Management Threshold, (VIN_DPM) - Programmable Input Overvoltage Protection
Threshold (VOVP) - Programmable Safety Timer
- Programmable Battery Charge Voltage,
- Resistor Programmable Defaults for:
- ICHG up to 2 A With Current Monitoring Output
(ISET) - ILIM up to 2 A With Current Monitoring Output
(ILIM) - VIN_DPM (VDPM)
- ICHG up to 2 A With Current Monitoring Output
- Watchdog Timer Disable Bit
- Integrated 4.9 V, 50 mA LDO
- Complete System-Level Protection
- Input UVLO, Input Overvoltage Protection
(OVP), Battery OVP, Sleep Mode, VIN_DPM - Input Current Limit
- Charge Current Limit
- Thermal Regulation
- Thermal Shutdown
- Voltage-Based, JEITA Compatible NTC
Monitoring Input - Safety Timer
- Input UVLO, Input Overvoltage Protection
- 22 V Absolute Maximum Input Voltage Rating
- 10.5 V Maximum Operating Input Voltage
- Low RDS(on) Integrated Power FETs for a Charging
Rate of up to 2 A - Open-Drain Status Outputs
- Synchronous Fixed-Frequency PWM Controller
Operating at 3 MHz for Small Inductor Support - AnyBoot Robust Battery Detection Algorithm
- Charge Time Optimizer for Improved Charge
Times at Any Given Charge Current - 2.40-mm × 2.00-mm 30-Ball DSBGA and 4-mm ×
4-mm 24-Pin QFN Packages
The bq24250, bq24251, and bq24253 are highly integrated single-cell Li-Ion battery chargers and system power-path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has a single input that operates from either a USB port or an AC wall adapter for a versatile solution.
The power-path management feature allows the bq24250, bq24251, and bq24253 to power the system from a high-efficiency DC-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 reduced charge current allows for proper charge termination and enables the system to run with a defective or absent battery pack. Additionally, this reduced charge current enables instant system turnon even with a totally discharged battery or no battery. The architecture of the power-path management also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents. This supplementation of current requirements enables the use of a smaller adapter.
The battery is charged in four phases: trickle charge, precharge, 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, a voltage-based, JEITA compatible battery pack thermistor monitoring input (TS) that monitors battery temperature for safe charging is included.
관심 가지실만한 유사 제품
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
기술 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기10 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | bq2425x 2A Single-Input I2C, Stand-Alone Switched-Mode Li-Ion Battery Charger With Power-Path Management datasheet (Rev. H) | PDF | HTML | 2015/08/20 |
| Technical article | TI DLP® NIRscan™ Nano Evaluation Module has answers to your handheld near-infrared | PDF | HTML | 2015/10/02 | |
| Product overview | Battery Management Solutions for Point of Sale Systems | 2014/08/18 | ||
| Analog Design Journal | Battery-charging considerations for high-power portable devices | 2014/04/11 | ||
| Analog Design Journal | Extract maximum power from the supply when charging a battery | 2014/04/11 | ||
| Application note | Building your own Battery Simulator | 2013/10/14 | ||
| Application note | Using bq2425x’s DPM Feature for Solar Panel Applications | 2013/07/31 | ||
| Application note | Selecting the Best bq2425x Single Cell I2C, Standalone Switch-Mode Battery Charg | 2013/06/17 | ||
| User guide | bq24257EVM-150, Single-Cell Li-Ion Switch-Mode Charger (Rev. A) | 2013/04/03 | ||
| Product overview | Power Bank Charger ICs | 2013/02/25 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
BOOSTXL-BATPAKMKII — 연료 탱크 MKII 배터리 부스터팩 플러그인 모듈
The Fuel Tank MKII BoosterPack™ plug-in module is the next generation design of the original Fuel Tank BoosterPack module. It includes next-generation TI battery monitoring ICs and other new features to make it easier to use. It allows TI LaunchPad™ development kits to be powered from (...)
사용 설명서: PDF
평가 보드
BQ24250EVM-150 — BQ24250EVM-150 단일 입력 I2C/독립형 스위치 모드 리튬 이온 배터리 충전기 평가 모듈
This EVM enables test and evaluation of the Texas Instruments' bq24250/51/57 devices. The bq2425x series are highly integrated single cell Li-Ion battery chargers targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that (...)
사용 설명서: PDF
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.
드라이버 또는 라이브러리
BQ24257SW-LINUX — BQ2425x용 Linux 드라이버
The Linux driver supports the BQ2425x switch-mode Li-ion battery charger. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.
Linux mainline status
Available in Linux mainline: Yes
Available through git.ti.com: N/A
Linux source files
The files (...)
지원 소프트웨어
SLUC435 — bq24250EVM Software
지원되는 제품 및 하드웨어
제품
배터리 충전기 IC
하드웨어 개발
평가 보드
계산 툴
SLUC436 — Thermal TS bq2425x Calculator Tool
지원되는 제품 및 하드웨어
제품
배터리 충전기 IC
하드웨어 개발
평가 보드
레퍼런스 디자인
TIDA-00554 — Bluetooth 연결을 이용한 휴대용 화학 물질 분석용 DLP 울트라 모바일 NIR 분광계
The ultra-mobile near-infrared (NIR) spectrometer reference design utilizes Texas Instruments' DLP technology in conjunction with a single-element InGaAs detector to deliver high performance measurements in a portable form factor that is more affordable than architectures using an expensive InGaAs (...)
레퍼런스 디자인
TIDA-00587 — 충전기 부스터팩 레퍼런스 디자인
The TIDA-00587 reference design is a charger that has been designed as a booster pack to fit on the TI Launchpad development boards. The use of this this board for development will reduce the time spent in design and test of the bq24250 charger IC. You can charger your battery and using the on (...)
레퍼런스 디자인
TIDA-00048 — 2A 단일 입력 I2C/독립형 스위치 모드 리튬 이온 배터리 충전기 레퍼런스 디자인
This reference design contains highly integrated single cell Li-Ion battery chargers targeted for space-limited, portable applications with high capacity batteries. The solution includes a single cell charger with a single input that operates from either a USB port or AC wall adapter for a (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| DSBGA (YFF) | 30 | 옵션 보기 |
| VQFN (RGE) | 24 | 옵션 보기 |
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.