Overview
The TMCS1101A4UQDRQ1 from Texas Instruments is a high-precision, galvanically isolated Hall-effect current sensor designed for accurate DC or AC current measurements. This device features excellent linearity, temperature stability, and low drift, making it suitable for a wide range of industrial and automotive applications. The TMCS1101A4UQDRQ1 operates from a single 3-V to 5.5-V power supply and provides four sensitivity options, eliminating ratiometry errors and improving supply noise rejection. It is available in an SOIC-8 package and is certified with safety-related standards such as UL 1577 and IEC/CB 62368-1.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Range | 3 V to 5.5 V | V |
| Sensitivity | 400 mV/A | mV/A |
| Total Error | ±0.51% (typ), ±1.15% (max) | % |
| Sensitivity Error | ±0.5% | % |
| Offset Error | ±2.4 mV to ±21 mV | mV |
| Linearity Error | ±0.05% | % |
| Signal Bandwidth | 80 kHz | kHz |
| Input Conductor Resistance | 1.8 mΩ | mΩ |
| Allowable Continuous RMS Current | 16 A (at 125°C) | A |
| Isolation Rating | 3 kVRMS | kVRMS |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | SOIC-8 |
Key Features
- High accuracy with total error of ±0.51% typical and ±1.15% maximum across the temperature range of –40°C to 85°C.
- Low drift internal reference and zero drift internal reference.
- Robust 600-V lifetime working voltage and 3-kVRMS basic isolation.
- Bidirectional and unidirectional current sensing capabilities.
- Multiple sensitivity options: 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A.
- Excellent common-mode rejection and transient immunity due to integrated electrical shielding.
- Low conductor resistance of 1.8 mΩ, minimizing power loss and thermal dissipation.
- Safety-related certifications including UL 1577 and IEC/CB 62368-1.
Applications
- Motor and load control.
- Inverter and H-bridge current measurements.
- Power factor correction.
- Overcurrent protection.
- DC and AC power monitoring.
Q & A
- What is the operating supply range of the TMCS1101A4UQDRQ1?
The operating supply range is from 3 V to 5.5 V. - What is the sensitivity of the TMCS1101A4UQDRQ1?
The sensitivity is 400 mV/A. - What is the total error of the TMCS1101A4UQDRQ1?
The total error is ±0.51% typical and ±1.15% maximum. - What is the signal bandwidth of the TMCS1101A4UQDRQ1?
The signal bandwidth is 80 kHz. - What is the input conductor resistance of the TMCS1101A4UQDRQ1?
The input conductor resistance is 1.8 mΩ. - What is the allowable continuous RMS current of the TMCS1101A4UQDRQ1 at 125°C?
The allowable continuous RMS current is 16 A. - What is the isolation rating of the TMCS1101A4UQDRQ1?
The isolation rating is 3 kVRMS. - What are the safety-related certifications of the TMCS1101A4UQDRQ1?
The device is certified with UL 1577 and IEC/CB 62368-1. - What are the typical applications of the TMCS1101A4UQDRQ1?
Typical applications include motor and load control, inverter and H-bridge current measurements, power factor correction, overcurrent protection, and DC and AC power monitoring. - What is the package type of the TMCS1101A4UQDRQ1?
The package type is SOIC-8.
