지원 소프트웨어
데이터시트
DRV8844
- Quad 1/2-H-Bridge DC Motor Driver
- Can Drive Four Solenoids, Two DC Motors, One Stepper Motor, or Other Loads
- Full Individual Half Bridge Control
- Low MOSFET On-Resistance
- 2.5-A Maximum Drive Current at 24 V, 25°C
- Floating Input Buffers Allow Dual (Bipolar) Supplies (up to ±30 V)
- Built-In 3.3-V, 10-mA LDO Regulator
- Industry Standard IN/IN Digital Control Interface
- 8-V to 60-V Operating Supply Voltage Range
- Outputs Can Be Connected in Parallel
- Thermally Enhanced Surface Mount Package
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The DRV8844 provides four individually controllable 1/2-H-bridge drivers. It can be used to drive two DC motors, one stepper motor, four solenoids, or other loads. The output driver channel for each channel consists of N-channel power MOSFET’s configured in a 1/2-H-bridge configuration.
The DRV8844 can supply up to 2.5-A peak or 1.75-A RMS output current per channel (with proper PCB heatsinking at 24 V and 25°C) per H-bridge.
Separate inputs to independently control each 1/2-H-bridge are provided. To allow operation with split supplies, the logic inputs and nFAULT output are referenced to a separate floating ground pin.
Internal shutdown functions are provided for over current protection, short circuit protection, undervoltage lockout, and overtemperature.
The DRV8844 is available in a 28-pin HTSSOP package with PowerPAD (Eco-friendly: RoHS & no Sb/Br).
For all available packages, see the orderable addendum at the end of the data sheet.기술 문서
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모두 보기10 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8844 Quad ½-H-Bridge Driver IC datasheet (Rev. D) | PDF | HTML | 2016/05/04 |
| Application note | How to Drive Unipolar Stepper Motor with the DRV8xxx | PDF | HTML | 2021/12/03 | |
| 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 | |
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 2021/01/19 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018/07/06 | ||
| More literature | TM4C123x Stepper Motor Control Product Summary | 2015/07/06 | ||
| EVM User's guide | DRV8844EVM Users Guide | 2012/08/01 | ||
| Application note | Understanding Motor Driver Current Ratings | 2012/02/06 | ||
| 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
DRV8844EVM — DRV8844 평가 모듈
The DRV8844 evaluation module (EVM) demonstrates the capabilities and performance of the DRV8844 motor driver from Texas Instruments.
사용 설명서: PDF
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HTSSOP (PWP) | 28 | 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.