DRV8899-Q1
- AEC-Q100 Qualified for Automotive
- Up to 1/256 microstepping
- Integrated current sense functionality
- No sense resistors required
- Smart tune decay technology, Fixed slow, and mixed decay options
- 4.5 to 45-V Operating supply voltage range
- Pin to pin RDS(ON) variants:
- DRV8889/A-Q1: 900 mΩ HS + LS at 25°C
- DRV8899-Q1: 1200 mΩ HS + LS at 25°C - High current capacity per bridge
- DRV8889/A-Q1: 2.4-A peak, 1.5-A full-scale
- DRV8899-Q1: 1.7-A peak, 1-A full-scale
- TRQ_DAC bits to scale full-scale current
- Configurable off-time PWM chopping
- Simple STEP/DIR interface
- SPI with daisy chain support
- Low-current sleep mode (2 µA)
- Programmable output slew rate
- Spread spectrum clocking to minimize EMI
- Protection features
- VM undervoltage lockout
- Overcurrent protection
- Open load detection
- Overtemperature warning and shutdown
- Undertemperature warning
- Fault condition indication pin (nFAULT)
- Functional Safety-Capable
The DRV8899-Q1 is a fully integrated stepper motor driver, supporting up to 1 A full scale current with an internal microstepping indexer, smart tune decay technology, and integrated current sensing. With a simple step/dir interface to manage the direction and step rate, DRV8899-Q1 supports up to 1/256 levels of microstepping to enable a smooth motion profile. Integrated current sensing eliminates the need for two external resistors, saving board space and cost. DRV8899-Q1 provides 8 decay mode options including: smart tune, slow, and mixed decay options. Smart tune automatically adjusts for optimal current regulation performance and compensates for any motor variation and aging effects. The device also includes an integrated torque DAC which allows for the controller to scale the output current through SPI without needing to scale the VREF voltage reference. A low-power sleep mode is provided for very low standby current using an nSLEEP pin. The device features full duplex, 4-wire synchronous SPI communication, with daisy chain support for up to 63 devices connected in series, for configurability and detailed fault reporting. View our full portfolio of stepper motor drivers on ti.com.
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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 | DRV8899-Q1 Automotive Stepper Driver with Integrated Current Sense and 1/256 Micro-Stepping datasheet (Rev. B) | PDF | HTML | 2021/4/20 | ||
| Application brief | Advantages of Integrated Current Sensing (Rev. B) | PDF | HTML | 2022/6/20 | |||
| 應用說明 | Daisy Chain Implementation for Serial Peripheral Interface (Rev. A) | 2021/4/7 | ||||
| 功能安全資訊 | DRV8899-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021/3/8 | |||
| 應用說明 | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | PDF | HTML | 2021/1/19 | |||
| 使用指南 | DRV8899-Q1EVM GUI User's Guide (Rev. A) | 2019/10/11 | ||||
| 白皮書 | How smart tune regulates current in stepper motors (Rev. A) | 2019/3/19 | ||||
| 應用說明 | Protecting Automotive Motor Drive Systems from Reverse Polarity Conditions (Rev. A) | 2019/2/19 | ||||
| Application brief | Smart Tuning for Efficient Stepper Driving | 2018/11/20 |
設計與開發
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DRV8899-Q1EVM — 具有整合式電流感測與 1/256 微型步進 EVM 的車用步進驅動器
DRV8899-Q1 評估模組 (EVM) 可輕鬆評估 DRV8899-Q1 裝置。DRV8899-Q1 裝置是適合汽車步進馬達應用的整合式雙全橋驅動器。
評估模組可讓裝置配置其所有功能模式，包括降至 1/256 步進解析度的微步進，用於智慧微調的多重衰退模式。電路板上的 MSP430F2617 提供 STEP、DIR (方向) 和 SPI 訊號，以控制 DRV8899-Q1。這些設定可在此 EVM 的可下載裝置 GUI 中進行配置。
如需有關此評估模組的詳細資訊，請參閱 DRV8899-Q1EVM 硬體和 GUI 使用指南。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGE) | 24 | 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。