DRV8871
- H-Bridge Motor Driver
- Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
- Wide 6.5-V to 45-V Operating Voltage
- 565-mΩ Typical RDS(on) (HS + LS)
- 3.6-A Peak Current Drive
- PWM Control Interface
- Current Regulation Without a Sense Resistor
- Low-Power Sleep Mode
- Small Package and Footprint
- 8-Pin HSOP With PowerPAD™
- 4.9 × 6 mm
- Integrated Protection Features
- VM Undervoltage Lockout (UVLO)
- Overcurrent Protection (OCP)
- Thermal Shutdown (TSD)
- Automatic Fault Recovery
The DRV8871 device is a brushed-DC motor driver for printers, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirectionally with up to 3.6-A peak current. The inputs can be pulse-width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.
The DRV8871 device has advanced current-regulation circuitry that does not use an analog voltage reference or external sense resistor. This novel solution uses a standard low-cost, low-power resistor to set the current threshold. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.
The device is fully protected from faults and short circuits, including undervoltage (UVLO), overcurrent (OCP), and overtemperature (TSD). When the fault condition is removed, the device automatically resumes normal operation.
관심 가지실만한 유사 제품
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
비교 대상 장치와 유사한 기능
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8871 3.6-A Brushed DC Motor Driver With Internal Current Sense (PWM Control) datasheet (Rev. B) | PDF | HTML | 2016/07/05 |
| Application note | Understanding Motor Driver Current Ratings (Rev. A) | PDF | HTML | 2024/07/05 | |
| Application brief | Advantages of Integrated Current Sensing (Rev. B) | PDF | HTML | 2022/06/20 | |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021/10/14 | |
| Application note | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 2021/07/22 | |
| Technical article | Overcoming design challenges for brushed-DC motors in smart sanitation systems | PDF | HTML | 2020/07/01 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018/07/06 | ||
| Technical article | Evolution of the brushed DC driver | PDF | HTML | 2015/10/26 | |
| EVM User's guide | DRV8871 Evaluation Module User's Guide | 2015/08/21 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004/05/12 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DRV8871EVM — DRV8871 H-브리지 PWM 모터 드라이버 평가 모듈
The DRV8871 evaluation module demonstrates the capabilities and performance of the DRV8871 integrated circuit from Texas Instruments. The EVM includes a 5V regulator and PWM generator. A single power source is required to evaluate the DRV8871.
TIDA-00786 — 초소형 브러시드 DC 모터 전류 조정 TI 레퍼런스 디자인
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HSOIC (DDA) | 8 | 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.