DRV5055
- Ratiometric linear Hall-effect magnetic sensor
- Operates from 3.3V and 5V power supplies
- Analog output with VCC / 2 quiescent offset
- Magnetic sensitivity options (At VCC = 5V):
- A1/Z1: 100mV/mT, ±21mT range
- A2/Z2: 50mV/mT, ±42mT range
- A3/Z3: 25mV/mT, ±85mT range
- A4/Z4: 12.5mV/mT, ±169mT range
- A8: 66mV/mT, ±75mT range
- Fast 20kHz sensing bandwidth
- Low-noise output with ±1mA drive
- Compensation for magnet temperature drift for A versions and none for Z versions
- Standard industry packages:
- Surface-mount SOT-23
- Through-hole TO-92
The DRV5055 is a linear Hall-effect sensor that responds proportionally to magnetic flux density. The device can be used for accurate position sensing in a wide range of applications.
The device operates from 3.3V or 5V power supplies. When no magnetic field is present, the analog output drives half of VCC. The output changes linearly with the applied magnetic flux density, and various sensitivity options enable maximal output voltage swing based on the required sensing range. North and south magnetic poles produce unique voltages.
Magnetic flux perpendicular to the top of the package is sensed, and the two package options provide different sensing directions.
The device uses a ratiometric architecture that can eliminate error from VCC tolerance when the external analog-to-digital converter (ADC) uses the same VCC for the reference. Additionally, the device features magnet temperature compensation to counteract how magnets drift for linear performance across a wide –40°C to 125°C temperature range. Device options for no temperature compensation of magnet drift are also available.
您可能會感興趣的類似產品
針腳對針腳的功能與所比較的裝置相同。
功能相同,但針腳輸出與所比較的裝置不同。
技術文件
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)。
BOOSTXL-BASSENSORS — 適用於建築自動化的感測器 BoosterPack 插入式模組
DRV5055-5057EVM — DRV5055、DRV5056 和 DRV5057 線性霍爾效應感測器評估模組
DRV5055-ANGLE-EVM — DRV5055 角度評估模組
DRV5055EVM — DRV5055 評估模組
HALL-ADAPTER-EVM — 霍爾感測器匯接轉接器評估模組
TI-MAGNETIC-SENSE-SIMULATOR — TI Magnetic sensing simulation tool
HALL-PROXIMITY-DESIGN — Magnetic Sensing Proximity Tool
HALL-PROXIMITY-DESIGN 是一款軟體工具,可幫助磁鐵與霍爾效應感測器系統的快速重複設計。
TIDA-060040 — 具備用於精確馬達位置控制之霍爾效應感測器的絕對角度編碼器參考設計
TIDA-060040 參考設計展示了精密馬達控制應用 (例如機器手臂控制) 中典型的絕對角度編碼方法。角度編碼可利用各種磁感技術加以實現。這是透過檢測兩個自然異相 90° 的磁通量密度、B 場向量分量來完成的。磁鐵旋轉時,感測器輸入為正弦,因此能使用三角函數屬性進行計算。
然而由於系統的電氣和機械特性,通常需要修正最終結果以達到最高準確度。一般而言,在大多數精密度馬達控制應用中,最終目標誤差要小於 0.1°。此設計探索了選擇磁鐵、決定放置與修正系統層級缺陷的過程,以實現高準確度的角度量測。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBZ) | 3 | Ultra Librarian |
| TO-92 (LPG) | 3 | 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。