지원 소프트웨어
DRV8425
- PWM microstepping stepper motor driver
- Simple STEP/DIR interface
- Up to 1/256 microstepping indexer
- Integrated current sense functionality
- No sense resistors required
- ±5% full-scale current accuracy
- Smart tune decay technology, fixed slow, and mixed decay options
- 4.5 to 33-V operating supply voltage range
- Low RDS(ON):
- DRV8424: 330 mΩ HS + LS at 24 V, 25°C
- DRV8425: 550 mΩ HS + LS at 24 V, 25°C
- High current capacity per bridge
- DRV8424: 4 A peak, 2.5 A full-scale, 1.8 A rms
- DRV8425: 3.2 A peak, 2 A full-scale, 1.4 A rms
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Pin to pin compatible with -
- Configurable off-time PWM chopping
- 7-µs, 16-µs, 24-µs, or 32-µs.
- Supports 1.8-V, 3.3-V, 5.0-V Logic Inputs
- Low-Ccrrent sleep mode (2 µA)
- Spread spectrum clocking for low electromagnetic interference (EMI)
- Small package and footprint
- Protection features
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Thermal shutdown (OTSD)
- Fault condition output (nFAULT)
The DRV8424/25 are stepper motor drivers for industrial and consumer applications. The device is fully integrated with two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing. The DRV8424 is capable of driving up to 2.5-A full-scale output current; and the DRV8425 is capable of driving up to 2-A full-scale output current (dependent on PCB design).
The DRV8424/25 use an internal current sense architecture to eliminate the need for two external power sense resistors, saving PCB area and system cost. The devices use an internal PWM current regulation scheme selectable between smart tune, slow and mixed decay options. Smart tune automatically adjusts for optimal current regulation, compensates for motor variation and aging effects and reduces audible noise from the motor.
A simple STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor. The device can be configured in full-step to 1/256 microstepping. A low-power sleep mode is provided using a dedicated nSLEEP pin. Protection features are provided for supply undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by the nFAULT pin.
관심 가지실만한 유사 제품
비교 대상 장치와 유사한 기능
기술 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기7 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8424/25 Stepper Drivers With Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and smart tune Technology datasheet (Rev. C) | PDF | HTML | 2022/04/21 |
| Application brief | Advantages of Integrated Current Sensing (Rev. B) | PDF | HTML | 2022/06/20 | |
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 2021/01/19 | |
| White paper | How smart tune regulates current in stepper motors (Rev. A) | 2019/03/19 | ||
| Application brief | Smart Tuning for Efficient Stepper Driving | 2018/11/20 | ||
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018/07/06 | ||
| 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.
평가 보드
DRV8424EVM — DRV8424 STEP/DIR 제어 인터페이스 스테퍼 모터 드라이버 보드
The DRV8424 evaluation module (EVM) allows easy evaluation of the DRV8424 device.
The DRV8424 devices are integrated motor-driver solutions for bipolar stepper motors. The device integrates two N-channel power MOSFET H-bridges, integrated current sense and regulation circuitry, and a microstepping (...)
사용 설명서: PDF
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 28 | 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.