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
- 2.5A Maximum Drive Current at 24V, 25°C
- Floating Input Buffers Allow Dual (Bipolar) Supplies (up to ±30V)
- Built-In 3.3V, 10mA LDO Regulator
- Industry Standard IN/IN Digital Control Interface
- 8V to 60V Operating Supply Voltage Range
- Outputs Can Be Connected in Parallel
- Thermally Enhanced Surface Mount Package
The DRV8844 provides four individually controllable 1/2-H-bridge drivers. The device 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 2.5A peak or 1.75A RMS output current per channel (with proper PCB heatsinking at 24V 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).
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | DRV8844 Quad Half-Bridge Driver IC datasheet (Rev. E) | PDF | HTML | 2025. 7. 29 | |
| 인증서 | DRV8844AEVM EU Declaration of Conformity (DoC) | 2025. 8. 7 | |||
| 애플리케이션 노트 | Understanding Motor Driver Current Ratings (Rev. A) | PDF | HTML | 2024. 7. 5 | ||
| 애플리케이션 노트 | How to Drive Unipolar Stepper Motor with the DRV8xxx | PDF | HTML | 2021. 12. 3 | ||
| 애플리케이션 노트 | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021. 10. 14 | ||
| 애플리케이션 노트 | Calculating Power Dissipation for a H-Bridge or Half Bridge Driver (Rev. A) | PDF | HTML | 2021. 7. 22 | ||
| 애플리케이션 노트 | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 2021. 1. 19 | ||
| 애플리케이션 노트 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018. 7. 6 | |||
| 추가 자료 | TM4C123x Stepper Motor Control Product Summary | 2015. 7. 6 | |||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004. 5. 12 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
DRV8844AEVM — DRV8844A 평가 모듈
DRV8844EVM — DRV8844 평가 모듈
SLVC445 — DRV8844 Software
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.