BQ25730
- Power path control through battery MOSFET implementing independent system voltage instant-on with no battery or depleted battery
- 400kHz/800kHz programmable switching frequency for high efficiency/high power density
- Buck-boost narrow voltage DC (NVDC) charger for USB-C Power Delivery (PD) interface platform
- 3.5V to 26V input range to charge 1- to 5-cell battery
- Charge current up to 16.2A/8.1A with 128mA/64mA resolution based on 5mΩ/10mΩ sensing resistor
- Input current limit up to 10A/6.35A with 100mA/50mA resolution based on 5mΩ/10mΩ sensing resistor
- Support USB 2.0, USB 3.0, USB 3.1 and USB Power Delivery (PD)
- Input Current Optimizer (ICO) to extract max input power without overloading the adapter
- Seamless transition between buck, buck-boost, and boost operations
- Input current and voltage regulation (IINDPM and VINDPM) against source overload
- TI patented switching frequency dithering pattern for EMI noise reduction
- TI patented Pass Through Mode (PTM) for system power efficiency improvement and battery fast charging achieving 99% efficiency.
- Input and battery current monitor through dedicated pins
- Integrated 8-bit ADC to monitor voltage, current and power
- Battery MOSFET ideal diode operation in supplement mode to support system when adapter is fully loaded
- Power up USB port from battery (USB OTG)
- 3V to 24V OTG with 8mV resolution
- Output current limit up to 12.7A/6.35A with 100mA/50mA resolution based on 5mΩ/10mΩ sensing resistor
- I2C host control interface for flexible system configuration
- High accuracy for the regulation and monitor
- ±0.5% Charge voltage regulation
- ±3% Charge current regulation
- ±2.5% Input current regulation
- ±2% Input/charge current monitor
- Safety
- Thermal shutdown
- Input, system, battery overvoltage protection
- Input, MOSFET, inductor overcurrent protection
- Safety-Related Certifications
- IEC 62368-1 CB Certification
- Package: 32-Pin 4.0mm × 4.0mm WQFN
The BQ25730 is a synchronous NVDC buck-boost battery charge controller to charge a 1- to 5-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters. It offers a low component count, high efficiency solution for space constrained, 1- to 5-cell battery charging applications. The Narrow VDC buck-boost architecture avoid direct power path from input source to system voltage which implements wide input voltage range and narrow system voltage range at same time. Narrow system voltage range is valuable for faster battery supplement and lower MOSFET rating for next stage converter.
The NVDC configuration allows the system to be regulated based on battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.
During power up, the charger sets the converter to a buck, boost, or buck-boost configuration based on the input source and battery conditions. The charger seamlessly transitions between the buck, boost, and buck-boost operation modes without host control.
In the absence of an input source, the BQ25730 supports the USB On-the-Go (OTG) function from a 1- to 5-cell battery to generate an adjustable 3V to 24V output on VBUS with 8mV resolution. The OTG output voltage transition slew rate can be configured to comply with the USB-PD 3.0 PPS specification.
The latest version of the USB-C PD specification includes Fast Role Swap (FRS) to ensure power role swapping occurs in a timely fashion so that the device(s) connected to the dock can avoid experiencing momentary power loss or glitching. This device integrates FRS in compliance with the PD specification.
TI patented switching frequency dithering pattern can significantly reduce EMI noise over the whole conductive EMI frequency range (150kHz to 30MHz). Multiple dithering scale options are available to provide flexibility for different applications to simplify EMI noise filter design.
The charger can be operated in the TI patented Pass Through Mode (PTM) to improve efficiency over the full load range. In PTM, input power is directly passed through the charger to the system. Switching losses of the MOSFETs and inductor core loss can be saved for high efficiency operation.
The BQ25730 is available in a 32-pin 4mm × 4mm WQFN package.
관심 가지실만한 유사 제품
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | BQ25730 I2C 1- to 5-Cell Buck-Boost Narrow VDC Battery Charge Controller with Power Path Control and USB-C PD 3.0 OTG Output datasheet (Rev. A) | PDF | HTML | 2024/01/24 |
| Application note | Layout Guide for Buck-Boost Charger BQ257XX Series | PDF | HTML | 2024/01/30 | |
| Application note | LiFePO4 Design Considerations | PDF | HTML | 2023/07/26 | |
| Application note | Autonomous Smart Battery Guide | PDF | HTML | 2021/10/15 | |
| Certificate | BQ25730EVM EU RoHS Declaration of Conformity (DoC) | 2021/02/16 | ||
| EVM User's guide | BQ2573x Evaluation Module (Rev. A) | PDF | HTML | 2021/01/19 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
BQ25730EVM — I2C NVDC 1~5셀, 16A 벅-부스트 배터리 충전 컨트롤러 평가 모듈
TI-CHARGER-GUI — USB2ANY 및 배터리 충전 평가 모듈과 함께 사용하기 위한 GUI 소프트웨어
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RSN) | 32 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.