DRV10970
- Wide Power Supply Voltage Range: 5 to 18 V
- Integrated FETs: 1-A RMS, 1.5-A Peak Output
Phase/Winding Current - Total Driver H + L RDSON: 400 mΩ
- Embedded 180° Sine-Wave and Trapezoidal
Commutations - Ultra-Low Power Consumption in Sleep Mode
(35 µA) - Adaptive Drive Angle Adjustment
- Three or Single Hall Sensor Option to Minimize
System Cost - Motor Spin Direction Control
- Configurable for 30° Hall Placement or 0° Hall
Placement - Adjustable Retry Timing after Motor Lock
- Programmable Current-Limit Function
- Tachometer – Motor Speed Information on Open-
Drain FG Pin - Motor Lock Report on Open-Drain RD Pin
- Protection Features
- Supply (VM) Undervoltage Lockout
- Cycle-by-Cycle Current Limit
- Overcurrent Protection (OCP)
- Thermal Shutdown
- Motor Lock Detect and Report
The DRV10970 is an integrated three-phase BLDC motor driver for home appliance, cooling fans, and other general-purpose motor control applications. The embedded intelligence, small form factor, and simple pinout structure reduce the design complexity, board space, and system cost. The integrated protections improve the system robustness and reliability.
The output stage of DRV10970 consists of three half-bridges with RDSON of 400 mΩ (H + L). Each half-bridge is capable of driving up to 1-A RMS and 1.5-A peak output current. When the device enters sleep mode, it consumes typical 35 µA of current.
The advanced 180° sine-wave commutation algorithm is embedded into the device and achieves high efficiency, low torque ripple, and superior acoustic performance. The adaptive driving angle adjustment function achieves the most optimized efficiency regardless of the motor parameters and load conditions.
The DRV10970 is designed for either differential or single-ended Hall sensor based applications. The differential Hall signal inputs are detected by the integrated comparators. The device supports three Hall and single Hall based applications; the single Hall sensor mode reduces the system cost by eliminating two Hall sensors.
The device implements a standard control interface which includes PWM input (speed command), FG output (speed feedback), FR input (forward and reverse direction control), and RD output (motor lock indicator).
The DRV10970 device supports both 30° and 0° Hall placements (with respect to the corresponding phase BEMF). The device implements trapezoidal drive mode to address higher power requirement.
The DRV10970 device determines the rotor lock condition based on the absence of Hall input switching. The device will try again to spin the motor after an adjustable auto-retry time which can be configured by a capacitor connected to the RETRY pin.
The device incorporates multiple protection features: overcurrent, undervoltage, overtemperature, and locked rotor conditions to improve the system robustness.
The DRV10970 is packaged in a thermally-enhanced 24-pin TSSOP package (eco-friendly: RoHS and no Sb/Br).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | DRV10970 Three-Phase Brushless DC Motor Driver datasheet (Rev. A) | PDF | HTML | 2016年 3月 10日 |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 2021年 10月 14日 | |
| White paper | Replacing single-phase ACIMs with three-phase BLDC motors saves energy | 2016年 4月 14日 | ||
| Application note | Adaptive Drive Angle Adjust | 2016年 4月 4日 | ||
| EVM User's guide | DRV10970 EVM User's Guide | 2016年 3月 7日 | ||
| Application note | Single Versus Three Hall Sensor Configuration | 2016年 3月 7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)。
DRV10970EVM — DRV10970 三相無刷馬達驅動器評估模組
TIDA-00919 — 可實現高效率驅動的單層冰箱風扇參考設計
| 封裝 | 引腳 | 下載 |
|---|---|---|
| HTSSOP (PWP) | 24 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點