TMCS1107
- Total error: ±1% typical, ±3% maximum, –40°C to 125°C
- Sensitivity error: ±0.9%
- Offset error: 40 mA
- Offset drift: 0.2 mA/°C
- Linearity error: 0.5%
- Multiple sensitivity options:
- TMCS1107A1B/U: 50 mV/A
- TMCS1107A2B/U: 100 mV/A
- TMCS1107A3B/U: 200 mV/A
- TMCS1107A4B/U: 400 mV/A
- Zero drift internal reference
- Bidirectional and unidirectional current sensing
- Operating supply range: 3 V to 5.5 V
- Signal bandwidth: 80 kHz
- 3-kVRMS isolation rating
- Robust 420-V lifetime working voltage
- Safety related certifications
- UL 1577 component recognition program
- IEC/CB 62368-1
The TMCS1107 is a galvanically isolated Hall-effect current sensor capable of DC or AC current measurement with high accuracy, excellent linearity, and temperature stability. A low-drift, temperature-compensated signal chain provides <3% full-scale error across the device temperature range.
The input current flows through an internal 1.8-mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor. This structure eliminates external concentrators and simplifies design. Low conductor resistance minimizes power loss and thermal dissipation. Inherent galvanic insulation provides a 420-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. Integrated electrical shielding enables excellent common-mode rejection and transient immunity.
The output voltage is proportional to the input current with multiple sensitivity options. Fixed sensitivity allows the TMCS1107 to operate from a single 3-V to 5.5-V power supply, eliminates ratiometry errors, and improves supply noise rejection. The current polarity is considered positive when flowing into the positive input pin. Both unidirectional and bidirectional sensing variants are available.
The TMCS1107 draws a maximum supply current of 6 mA, and all sensitivity options are specified over the operating temperature range of –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 | TMCS1107 3% Basic Isolation Hall-Effect Current Sensor With ±420-V Working Voltage datasheet (Rev. A) | PDF | HTML | 2021/7/1 | ||
| Application brief | Introduction to TI Magnetic Sense Simulator Features | PDF | HTML | 2023/12/5 | |||
| 使用指南 | Texas Instruments' Magnetic Sense Simulator User's Guide | PDF | HTML | 2023/12/4 | |||
| Application brief | Low-Drift, Precision, In-Line Isolated Magnetic Motor Current Measurements (Rev. A) | 2023/7/24 | ||||
| Application brief | Current Sensing in Collaborative and Industrial Robotic Arms (Rev. B) | PDF | HTML | 2023/7/24 | |||
| 應用說明 | TMCS110x Layout Challenges and Best Practices | PDF | HTML | 2022/12/3 | |||
| 白皮書 | Improve High-Voltage System Efficiency With Zero-Drift Hall-Effect Current Sense (Rev. A) | PDF | HTML | 2022/3/15 | |||
| 應用說明 | Thermal Implementation Guide for In-Package Magnetic Current Sensors | PDF | HTML | 2020/7/12 | |||
| Application brief | Precision Designs with Non-Ratiometric Magnetic Current Sensors | 2019/7/1 |
設計與開發
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TMCS1107EVM — TMCS1107 隔離式霍爾效應電流感測評估模組
TMCS1107EVM 旨在協助方便快速地使用 TMCS1107，這是一款採用內部比率參考的隔離式霍爾效應精密電流感測監控器。此評估模組 (EVM) 可讓設計人員在測量隔離輸出時，將最大操作電流推經霍爾輸入側。此固定裝置佈局不做為目標電路模型使用，也不是為了電磁 (EMI) 測試所進行的佈局。
TMCS1107EVM 包含單一印刷電路板 (PCB)，可分為八個獨立部分。其中有四個部分與 TMCS1107 的四種單向變體對應，剩下四個部分則對應至裝置的雙向變體。
CS-MAGNETIC-ERROR-TOOL-CALC — Hall-Effect Current Sensor Comparison and Error Tool
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |