DRV10975
- Input Voltage Range: 6.5 to 18 V
- Total Driver H + L rDS(on): 250 mΩ
- Drive Current: 1.5-A Continuous Winding Current (2-A Peak)
- Sensorless Proprietary Back Electromotive Force (BEMF) Control Scheme
- Continuous Sinusoidal 180° Commutation
- No External Sense Resistor Required
- For Flexibility User May Include External Sense Resistor to Monitor Power Delivered to Motor
- Flexible User Interface Options:
- I2C Interface: Access Registers for Command and Feedback
- Dedicated SPEED Pin: Accepts Either Analog or PWM Input
- Dedicated FG Pin: Provides TACH Feedback
- Spin-Up Profile Customizable With EEPROM
- Forward-Reverse Control With DIR Pin
- Integrated Step-Down Regulator to Efficiently Provide Voltage (5 V or 3.3 V) for Internal and External Circuits
- Supply Current 4.5 mA With Standby Version (DRV10975)
- Supply Current 80 µA With Sleep Version (DRV10975Z)
- Overcurrent Protection
- Lock Detection
- Voltage Surge Protection
- UVLO Protection
- Thermal Shutdown Protection
- Thermally-Enhanced 24-Pin HTSSOP
The DRV10975 device is a three-phase sensorless motor driver with integrated power MOSFETs, which can provide continuous drive current up to 1.5 A. The device is specifically designed for cost-sensitive, low-noise, low-external-component-count applications.
The DRV10975 device uses a proprietary sensorless control scheme to provide continuous sinusoidal drive, which significantly reduces the pure tone acoustics that typically occur as a result of commutation. The interface to the device is designed to be simple and flexible. The motor can be controlled directly through PWM, analog, or I2C inputs. Motor speed feedback is available through either the FG pin or I2C.
The DRV10975 device features an integrated step-down regulator to efficiently step down the supply voltage to either 5 or 3.3 V for powering both internal and external circuits. The device is available in either a sleep mode or a standby mode version to conserve power when the motor is not running. The standby mode (4.5-mA) version leaves the regulator running and the sleep mode (80-µA) version shuts it off. Use the standby mode version in applications where the regulator is used to power an external microcontroller.
TI provides DRV10975 tuning Guide for quick setup and tuning of the device for optimal performance.
An I2C interface allows the user to reprogram specific motor parameters in registers and program the EEPROM to help optimize the performance for a given application. The DRV10975 device is available in a thermally efficient HTSSOP, 24-pin package with an exposed thermal pad. The operating temperature is specified from –40°C to 125°C.
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 | DRV10975 12-V, Three-Phase, Sensorless BLDC Motor Driver datasheet (Rev. F) | PDF | HTML | 2020/6/23 | ||
| 應用說明 | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021/10/14 | |||
| 使用指南 | DRV109xxEVM Quick Start Guide (Rev. C) | 2018/3/7 | ||||
| 設計指南 | DRV10983, DRV10975, DRV10983-Q1, and DRV10987 Programming Tool Reference Design (Rev. A) | 2017/10/17 | ||||
| 使用指南 | User's Guide For The TIDA-01373 (Rev. A) | 2017/10/10 | ||||
| 使用指南 | DRV10983 and DRV10975 Tuning Guide (Rev. D) | 2017/6/23 | ||||
| 使用指南 | DRV10983x, DRV10975x, and DRV10987 IPD Tuning Guide (Rev. A) | 2017/5/30 | ||||
| 應用說明 | How to Design a Thermally-Efficient Integrated BLDC Motor Drive PCB (Rev. A) | 2017/2/5 | ||||
| 技術文章 | How to avoid motor and system overvoltage using AVS technology without external co | PDF | HTML | 2016/10/14 | |||
| 白皮書 | Replacing single-phase ACIMs with three-phase BLDC motors saves energy | 2016/4/14 | ||||
| 應用說明 | DRV10983EVM-TB Target Board Programming Guide | 2014/10/7 | ||||
| 應用說明 | Tuning Lead Angle in DRV10x Sensorless BLDC Drivers | PDF | HTML | 2012/10/9 |
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)。
DRV10975EVM — 適用於三相無刷馬達驅動器的 DRV10975EVM 評估模組
DRV10975EVM（評估模組）是一款簡單易用的套件，用於展示 TI 的無刷 DC 馬達驅動器 DRV10975。提供 GUI 讓客戶有能力評估此裝置的功能與性能。DRV10975EVM 是高性能與節能的評估模組，可協助客戶加快開發速度，實現更快的上市時間。
SLOC345 — DRV109xx Software
TIDA-00525 — 具有無感測器正弦控制的 12V BLDC 伺服器風扇
這是 12V 3 相位無刷 DC 風扇的參考設計，適用於伺服器散熱應用。 它基於單個 IC 控制器 DRV10975，該控制器以正弦電流驅動無感測器 BLDC 馬達，從而最大限度地減少噪音聲音和扭矩波動。 此設計不需要微控制器或韌體，從而可加快上市時間。
TIDA-01373 — EEPROM 編程工具參考設計
TIDA-01619 — 22 mm 直徑和熱增強型三相 BLDC 馬達驅動器參考設計
TIDA-01619 可為操作範圍為 4.4V 至 18V 的系統提供三相無刷 DC (BLDC) 馬達驅動器解決方案。
此設計採用 DRV10974 馬達驅動器，能夠新增 MCU 以實現閉合迴路速度控制。DRV10974 無需霍爾感測器即可提供無感測器整流，只需 6 個外部被動元件即可實現低成本解決方案，透過 180° 正弦整流系統可實現最佳效率與低雜訊。
此參考設計提供 22-mm 直徑電路板設計與熱增強（採用雙層佈局和 2 盎司覆銅厚度）相關指南。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
| VQFN (RHF) | 24 | Ultra Librarian |