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).
技術資料
| 種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | データシート | DRV10970 Three-Phase Brushless DC Motor Driver データシート (Rev. A) | PDF | HTML | 2016年 3月 10日 | ||
| アプリケーション・ノート | モーター・ドライバ向け基板レイアウト事例 (Rev. B 翻訳版) | PDF | HTML | 英語版 (Rev.B) | PDF | HTML | 2021年 10月 14日 | |
| ホワイト・ペーパー | Replacing single-phase ACIMs with three-phase BLDC motors saves energy | 2016年 4月 14日 | ||||
| アプリケーション・ノート | Adaptive Drive Angle Adjust | 2016年 4月 4日 | ||||
| EVM ユーザー ガイド (英語) | DRV10970 EVM User's Guide | 2016年 3月 7日 | ||||
| アプリケーション・ノート | Single Versus Three Hall Sensor Configuration | 2016年 3月 7日 |
設計および開発
その他のアイテムや必要なリソースを参照するには、以下のタイトルをクリックして詳細ページをご覧ください。
DRV10970EVM — DRV 10970 3 相ブラシレス・モーター・ドライバの評価モジュール
TIDA-00919 — 高効率駆動を実現する片面実装冷蔵庫ファンのリファレンス・デザイン
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点