Overview
The TMCS1100A2QDR is a high-precision, electrically isolated Hall-effect current sensor manufactured by Texas Instruments. Designed for measuring both DC and AC currents, this component is ideal for applications requiring accurate current sensing with minimal power loss. Its market positioning targets industries such as industrial automation, automotive electronics, and renewable energy systems, where reliable and precise current measurement is critical. The TMCS1100A2QDR stands out for its low drift, temperature stability, and integrated electrical shielding, making it a competitive choice for modern electronic designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Current Range | ±20 | A | Peak |
| Supply Voltage | 3 to 5.5 | V | |
| Isolation Voltage | 600 | V | Lifetime working voltage |
| Basic Isolation | 3k | VRMS | |
| Operating Temperature | -40 to +125 | °C | |
| Conductor Resistance | 1.8 | mΩ | |
| Full-Scale Error | <1 | % | Over temperature range |
| Max Supply Current | 6 | mA | |
| Output Voltage | Proportional to Input Current | Four sensitivity options |
Key Features
- High accuracy and linearity for precise current measurement.
- Low conductor resistance minimizes power loss and thermal dissipation.
- Integrated electrical shielding enhances common-mode rejection and transient immunity.
- Temperature-compensated signal chain ensures stability across operating conditions.
- Electrically isolated design supports up to 600V working voltage and 3kVRMS basic isolation.
Applications
The TMCS1100A2QDR is widely used in industrial automation for motor control and power monitoring, in automotive electronics for battery management and EV charging systems, and in renewable energy applications such as solar inverters and wind turbines. Its robust design and high precision make it suitable for demanding environments where reliable current sensing is essential.
Q & A
1. What is the input current range of the TMCS1100A2QDR?
The input current range is ±20A peak.
2. What is the supply voltage requirement for this sensor?
It operates with a supply voltage of 3V to 5.5V.
3. What is the isolation voltage of the TMCS1100A2QDR?
It provides 600V lifetime working voltage and 3kVRMS basic isolation.
4. What is the operating temperature range?
The sensor operates from -40°C to +125°C.
5. How does the TMCS1100A2QDR minimize power loss?
Its low conductor resistance of 1.8mΩ reduces power loss and thermal dissipation.
6. What is the full-scale error of the sensor?
The full-scale error is less than 1% over the temperature range.
7. What is the maximum supply current?
The maximum supply current is 6mA.
8. Does the sensor support bidirectional current detection?
Yes, it supports bidirectional current detection with a variable zero-current output voltage.
9. What are the key advantages of the integrated electrical shielding?
It provides excellent common-mode rejection and transient immunity.
10. What are the typical applications of the TMCS1100A2QDR?
It is used in industrial automation, automotive electronics, and renewable energy systems.
