DRV425-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- High-precision, integrated fluxgate sensor:
- Offset: ±8 µT (max)
- Offset drift: ±5 nT/°C (typ)
- Gain error: 0.04% (typ)
- Gain drift: ±7 ppm/°C (typ)
- Linearity: ±0.1%
- Noise: 1.5 nT/√Hz (typ)
- Sensor range: ±2 mT (max)
- Range and gain adjustable with external resistor
- Selectable bandwidth: 47 kHz or 32 kHz
- Precision reference:
- Accuracy: 2% (max), drift: 50 ppm/°C (max)
- Pin-selectable voltage: 2.5 V or 1.65 V
- Selectable ratiometric mode: VDD / 2
- Diagnostic features: Overrange and error flags
- Supply voltage range: 3.0 V to 5.5 V
The DRV425-Q1 automotive device is designed for single-axis magnetic field-sensing applications, and enables electrically-isolated, high-sensitivity, and precise dc- and ac-field measurements. The device provides the unique and proprietary, integrated fluxgate sensor (IFG) with an internal compensation coil to support a high-accuracy sensing range of ±2 mT, with a measurement bandwidth of up to 47 kHz. The low offset, offset drift, and noise of the sensor, combined with the precise gain, low gain drift, and very low nonlinearity provided by the internal compensation coil, result in unrivaled magnetic field measurement precision.This high level of sensitivity and accuracy enables more current measurements in high-current busbar applications, such as traction inverters or battery-management systems. Torque sensor or motor diagnostic systems can benefit from the ability to precisely measure the position or displacement of a magnetic field. The output of the DRV425-Q1 is an analog signal proportional to the sensed magnetic field.
The device offers a complete set of features, including an internal difference amplifier, on-chip precision reference, and diagnostic functions to minimize component count and system-level cost.
The device is available in a thermally-enhanced, nonmagnetic, thin WQFN package, with a thermal pad for optimized heat dissipation, and is specified for operation over the automotive temperature range of –40°C to +125°C.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | DRV425-Q1 Automotive, Integrated Fluxgate Magnetic-Field Sensor datasheet (Rev. A) | PDF | HTML | 2020/04/24 |
| E-book | An Engineer's Guide to Current Sensing (Rev. B) | 2022/04/12 | ||
| Functional safety information | DRV425-Q1 Functional Safety FIT Rate, Failure Mode Distribution and Pin FMA | 2020/03/23 | ||
| Application brief | Fluxgate for Motor Diagnostics | 2017/12/21 | ||
| White paper | Achieve greater precision, reliability with magnetic sensing technology | 2017/06/26 | ||
| Application brief | Design Considerations for Dual DRV425 Bus Bar Application | 2017/03/30 | ||
| Application note | Bus Bar Theory of Operation | 2016/11/08 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DRV425-BUSBAR-EVM — 개방 루프 플럭스 게이트 센서를 사용한 ±100A 버스 바 전류 센서 레퍼런스 디자인 평가 어셈블리
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RTJ) | 20 | 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.