DRV8885
- PWM microstepping stepper motor driver
- Up to 1/16 microstepping
- Non-circular and standard ½ step modes
- Integrated current sense functionality
- No sense resistors required
- ±6.25% Full-scale current accuracy
- Slow and mixed decay options
- 8.0- to 37-V Operating supply voltage range
- Low RDS(ON): 0.86 Ω HS + LS at 24 V, 25°C
- High current capacity
- 1.5-A Full scale per bridge
- 1.0-A rms per bridge
- Fixed off-time PWM chopping
- Simple STEP/DIR interface
- Low-current sleep mode (20 µA)
- Small package and footprint
- 24 HTSSOP PowerPAD™ package
- 28 WQFN package
- Protection features
- VM undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Thermal shutdown (TSD)
- Fault condition indication pin (nFAULT)
The DRV8885 is a stepper motor driver for industrial equipment applications. The device has two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sense. The DRV8885 is capable of driving up to 1.5 A full scale or 1.0 A rms output current (depending on proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).
The DRV8885 integrated current sense functionality eliminates the need for two external sense resistors.
The STEP/DIR pins provide a simple control interface. The device can be configured in full-step up to 1/16 step modes. A low-power sleep mode is provided for very-low quiescent current standby using a dedicated nSLEEP pin.
Internal protection functions are provided for undervoltage, charge pump faults, overcurrent, short circuits, and overtemperature. Fault conditions are indicated by an nFAULT pin.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | DRV8885 1.5-A Stepper Motor Driver With Integrated Current Sense datasheet (Rev. D) | PDF | HTML | 2020年 3月 11日 |
| Application brief | Advantages of Integrated Current Sensing (Rev. B) | PDF | HTML | 2022年 6月 20日 | |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021年 10月 14日 | |
| Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 2021年 1月 19日 | |
| Application brief | Small Motors in Large Appliances | 2018年 7月 20日 | ||
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6日 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004年 5月 12日 |
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)。
DRV8885EVM — 具有整合電流感測的 1.5A 步進馬達驅動器評估模組
DRV8885 評估模組 (EVM) 展示了德州儀器 DRV8885 積體電路的整合式電流感測功能和性能。EVM 包括控制步進馬達的 DRV8885、控制 DRV8885 輸入的 MSP430F2617 以及用於 GUI 和 MSP430F2617 之間通訊的 USB 轉 UART。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
| WQFN (RHR) | 28 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中的可靠性監測
- 晶圓廠位置
- 組裝地點
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。