DRV8881
- Dual H-Bridge Motor Driver
- Bipolar Stepper Motor Driver
- Single or Dual Brushed-DC Motor Driver
- 6.5- to 45-V Operating Supply Voltage Range
- Two Control Interface Options
- PHASE/ENABLE (DRV8881E)
- PWM (DRV8881P)
- Multiple Decay Modes to Support Any Motor
- Smart tune (DRV8881E Only)
- Mixed Decay
- Slow Decay
- Fast Decay
- Adaptive Blanking Time for Smooth Motion
- Parallel Mode Operation (DRV8881P Only)
- Configurable Off-Time PWM Chopping
- 10, 20, or 30 µs Off-Time
- 3.3-V, 10-mA LDO Regulator
- Low-Current Sleep Mode (28 µA)
- Small Package and Footprint
- 28 HTSSOP (PowerPAD)
- 28 WQFN (PowerPAD)
- Protection Features
- VM Undervoltage Lockout (UVLO)
- Charge Pump Undervoltage (CPUV)
- Overcurrent Protection (OCP)
- Automatic OCP Retry
- Thermal Shutdown (TSD)
- Fault Condition Indication Pin (nFAULT)
The DRV8881 is a bipolar stepper or brushed-DC motor driver for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 is capable of driving up to 2.5-A peak current or 1.4-A rms current per H-bridge (with proper PCB ground plane for thermal dissipation and at 24 V and TA = 25°C).
Smart tune automatically tunes motors for optimal current regulation performance and compensates for motor variation and aging effects. Smart tune is available on the DRV8881E. Additionally, slow, fast, and mixed decay modes are available.
The PH/EN (DRV8881E) or PWM (DRV8881P) pins provide a simple control interface. An internal sense amplifier allows for adjustable current control. 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 a nFAULT pin.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV8881 2.5-A Dual H-Bridge Motor Driver datasheet (Rev. A) | PDF | HTML | 2015年 7月 29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 | |
| White paper | How smart tune regulates current in stepper motors (Rev. A) | 2019年 3月 19日 | ||
| Application brief | Smart Tuning for Efficient Stepper Driving | 2018年 11月 20日 | ||
| Technical article | Getting smart about tuning your stepper motor | PDF | HTML | 2018年 8月 23日 | |
| Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | 2018年 7月 6日 | ||
| More literature | TM4C123x Stepper Motor Control Product Summary | 2015年 7月 6日 | ||
| Application brief | PowerPAD™ Made Easy (Rev. B) | 2004年 5月 12日 |
設計與開發
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DRV8881EEVM — DRV8881E 雙 H 橋步進器或雙有刷 DC 馬達驅動器評估模組
DRV8881E is a dual H-bridge motor driver that can drive either a stepper motor or dual brushed DC motor driver with a Phase/Enable control interface. For stepper motors, this device also features TI's AutoTune™ adaptive decay mode. Aimed at 24V motors, this device also features (...)
DRV8881PEVM — DRV8881P 雙 H 橋步進器或雙有刷 DC 馬達驅動器評估模組
DRV8881P is a dual H-bridge motor driver that can drive either a stepper motor or dual brushed DC motor with a PWM control interface. Also aimed at 24V motors, this device supports slow, fast and mixed decay settings to tune the motors' performance. The DRV8881PEVM (evaluation module) serves as a (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 28 | 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
- 進行中持續性的可靠性監測
- 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。