DRV8872-Q1
- AEC-Q100 Qualified for Automotive Applications:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- H-Bridge Motor Driver
- Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads
- Wide 6.8-V to 45-V Operating Voltage
- 565-mΩ Typical RDS(on) (HS + LS)
- 3.6-A Peak Current Drive
- PWM Control Interface
- Integrated Current Regulation
- Low-Power Sleep Mode
- Fault Status Output Pin
- 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)
- Fault Reporting (nFAULT)
- Automatic Fault Recovery
The DRV8872-Q1 device is a brushed DC (BDC) motor driver for infotainment, HUD projector adjustment, motorized shifter knobs, and piezo horn drivers. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that provide bidirectional control of motors 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 DRV8872-Q1 device features integrated current regulation, based on an internal reference voltage and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. 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 lockout (UVLO), overcurrent protection (OCP), and thermal shutdown (TSD). Faults are communicated by pulling the nFAULT output low. When the fault condition is removed, the device automatically resumes normal operation.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | DRV8872-Q1 Automotive 3.6-A Brushed DC Motor Driver With Fault Reporting datasheet | PDF | HTML | 2016/11/30 | ||
| 應用說明 | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021/10/14 | |||
| 功能安全資訊 | DRV8872-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021/1/6 | |||
| 應用說明 | Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) | 2019/2/19 | ||||
| 應用說明 | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018/7/6 | ||||
| 應用說明 | Operating an Engine-Grille Shutter Motor With DRV8872-Q1 | 2016/12/1 | ||||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004/5/12 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
DRV8872EVM — DRV8872 H 橋 PWM 馬達驅動器評估模組
DRV8872 評估模組 (EVM) 展示德州儀器 DRV8872 積體電路的功能與性能。EVM 包括 5V 穩壓器和 PWM 產生器。需要單一電源來評估 DRV8872。
TIDA-00145 — 適用於電動摺疊側視鏡的汽車有刷馬達驅動器
此參考設計配備兩個評估模組 (EVM)，提供易於使用的平台，以展示電動折疊側視鏡馬達驅動器的功能與性能。
此參考設計也可輕鬆評估全橋式有刷 DC 馬達驅動器，該驅動器可驅動車輛側視鏡的收折功能。憑藉過電流、過熱、擊穿、UVLO 和寬廣輸入電壓（寬 VIN）範圍等內建汽車保護功能，此馬達驅動器可提供承受嚴苛汽車環境所需的功能。
此外，此設計提供測試資料，讓您能快速評估 DRV8801-Q1 和 DRV8872-Q1 折疊後視鏡模組的性能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。