Overview
The TMCS1108A3UQDRQ1 is a galvanically isolated Hall-effect current sensor produced by Texas Instruments. This device is designed for high-accuracy DC or AC current measurement, featuring excellent linearity and temperature stability. It is particularly suited for automotive applications, being AEC-Q100 qualified and functional safety-capable. The sensor operates within a temperature range of –40°C to 125°C and provides robust 100-V galvanic isolation between the current path and circuitry.
Key Specifications
| Category | Specification |
|---|---|
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Operating Temperature | –40°C to 125°C |
| Mounting Type | Surface Mount |
| Voltage - Supply | 3 V to 5.5 V |
| Output | Ratiometric, Voltage |
| Sensitivity | 200 mV/A |
| Polarization | Unidirectional |
| Current - Supply (Max) | 6 mA |
| Accuracy | ±1% typical, ±3% maximum |
| Number of Channels | 1 |
| For Measuring | AC/DC |
| Linearity | ±0.5% |
| Frequency | 80 kHz |
| Sensor Type | Hall Effect |
| Response Time | 6.5 µs |
Key Features
- AEC-Q100 qualified for automotive applications
- Temperature Grade 1: –40°C to 125°C
- Functional Safety-Capable
- 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: 50 mV/A, 100 mV/A, 200 mV/A, 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
- Robust 100-V galvanic isolation
Applications
The TMCS1108A3UQDRQ1 is primarily designed for automotive applications, including motor control, battery management systems, and power monitoring. Its high accuracy, excellent linearity, and robust galvanic isolation make it suitable for use in harsh environments. Additionally, it can be used in industrial automation, renewable energy systems, and other applications requiring precise current measurement.
Q & A
- What is the operating temperature range of the TMCS1108A3UQDRQ1?
The operating temperature range is –40°C to 125°C. - What is the supply voltage range for this sensor?
The supply voltage range is 3 V to 5.5 V. - What are the sensitivity options available for the TMCS1108A3UQDRQ1?
The sensitivity options are 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A. - Is the TMCS1108A3UQDRQ1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications. - What is the maximum supply current of the TMCS1108A3UQDRQ1?
The maximum supply current is 6 mA. - Does the TMCS1108A3UQDRQ1 support bidirectional current sensing?
Yes, it supports both bidirectional and unidirectional current sensing. - What is the signal bandwidth of the TMCS1108A3UQDRQ1?
The signal bandwidth is 80 kHz. - What type of isolation does the TMCS1108A3UQDRQ1 provide?
It provides robust 100-V galvanic isolation. - What is the response time of the TMCS1108A3UQDRQ1?
The response time is 6.5 µs. - Is the TMCS1108A3UQDRQ1 functional safety-capable?
Yes, it is functional safety-capable.
