Overview
The TMCS1101A2BQDRQ1 from Texas Instruments is a galvanically isolated Hall-effect current sensor designed for high-accuracy DC or AC current measurement. It features excellent linearity and temperature stability, making it suitable for a wide range of applications. The sensor uses a low-drift, temperature-compensated signal chain to ensure less than 1.5% full-scale error across the device temperature range. The input current flows through an internal 1.8-mΩ conductor, generating a magnetic field measured by an integrated Hall-effect sensor, which simplifies design and minimizes power loss and thermal dissipation.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (D), 8 pins |
| Operating Temperature Range | -40°C to 125°C |
| Package Quantity | Carrier 2,500, LARGE T&R |
| Total Error | ±0.51% typical, ±1.15% maximum (-40°C to 85°C) |
| Sensitivity Error | ±0.5% |
| Offset Error | 9 mA |
| Offset Drift | 0.04 mA/°C |
| Linearity Error | 0.05% |
| Lifetime and Environmental Drift | <±0.5% |
| Isolation Rating | 3-kV RMS |
| Lifetime Working Voltage | 600 V |
| Supply Voltage Range | 3 V to 5.5 V |
| Signal Bandwidth | 80 kHz |
| Sensitivity Options | 100 mV/A (TMCS1101A2B/U) |
Key Features
- Galvanically isolated Hall-effect current sensor for DC or AC current measurement.
- High accuracy, excellent linearity, and temperature stability.
- Low-drift, temperature-compensated signal chain.
- Internal 1.8-mΩ conductor minimizes power loss and thermal dissipation.
- 3-kV RMS isolation rating and 600-V lifetime working voltage.
- Bidirectional and unidirectional current sensing options.
- Zero drift internal reference.
- Operating supply range: 3 V to 5.5 V.
- Signal bandwidth: 80 kHz.
- Multiple sensitivity options (50 mV/A, 100 mV/A, 200 mV/A, 400 mV/A).
- Safety-related certifications: UL 1577 Component Recognition Program, IEC/CB 62368-1.
Applications
The TMCS1101A2BQDRQ1 is suitable for various applications requiring precise current measurement, such as:
- Automotive systems, including battery management and motor control.
- Industrial automation, including power supplies and motor drives.
- Renewable energy systems, such as solar and wind power.
- Medical devices requiring high accuracy and isolation.
- Consumer electronics with high current measurement needs.
Q & A
- What is the operating temperature range of the TMCS1101A2BQDRQ1?
The operating temperature range is -40°C to 125°C. - What is the isolation rating of the TMCS1101A2BQDRQ1?
The isolation rating is 3-kV RMS. - What are the sensitivity options available for the TMCS1101A2BQDRQ1?
The sensitivity options are 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A. - What is the maximum supply current of the TMCS1101A2BQDRQ1?
The maximum supply current is 6 mA. - Does the TMCS1101A2BQDRQ1 support bidirectional current sensing?
Yes, it supports both bidirectional and unidirectional current sensing. - What is the signal bandwidth of the TMCS1101A2BQDRQ1?
The signal bandwidth is 80 kHz. - What are the safety-related certifications for the TMCS1101A2BQDRQ1?
The certifications include UL 1577 Component Recognition Program and IEC/CB 62368-1. - What is the typical total error of the TMCS1101A2BQDRQ1?
The typical total error is ±0.51% (-40°C to 85°C). - How does the TMCS1101A2BQDRQ1 minimize power loss and thermal dissipation?
It uses an internal 1.8-mΩ conductor to minimize power loss and thermal dissipation. - What is the lifetime working voltage of the TMCS1101A2BQDRQ1?
The lifetime working voltage is 600 V.
