Overview
The TMCS1101A3UQDRQ1 is a galvanically isolated Hall-effect current sensor produced by Texas Instruments. This device is designed for high accuracy DC or AC current measurement, offering excellent linearity and temperature stability. It features a low-drift, temperature-compensated signal chain that ensures a total error of less than 1.5% across the device temperature range of –40°C to 85°C. The sensor integrates an internal 1.8-mΩ conductor, which generates a magnetic field measured by an integrated Hall-effect sensor, eliminating the need for external concentrators and minimizing power loss and thermal dissipation.
The TMCS1101A3UQDRQ1 provides inherent galvanic insulation with a 600-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. It also includes integrated electrical shielding for excellent common-mode rejection and transient immunity.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sensitivity | 200 | mV/A |
| Total Error | ±0.51% (typical), ±1.15% (maximum) | % |
| Sensitivity Error | ±0.5% | % |
| Offset Error | ±9 mA | mA |
| Offset Drift | 0.04 mA/°C | mA/°C |
| Linearity Error | ±0.05% | % |
| Lifetime and Environmental Drift | <±0.5% | % |
| Isolation Rating | 3-kVRMS | kVRMS |
| Working Voltage | 600 V | V |
| Operating Supply Range | 3 V to 5.5 V | V |
| Signal Bandwidth | 80 kHz | kHz |
| Input Conductor Resistance | 1.8 mΩ | mΩ |
| Maximum Allowable Continuous RMS Current | 16 A (at 125°C) | A |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | SOIC (8) | - |
| Body Size | 4.90 mm × 3.90 mm | mm |
Key Features
- Galvanically isolated Hall-effect current sensor for high accuracy DC or AC current measurement.
- Excellent linearity and temperature stability with a total error of less than 1.5% across the device temperature range.
- Low-drift, temperature-compensated signal chain.
- Internal 1.8-mΩ conductor for minimal power loss and thermal dissipation.
- Inherent galvanic insulation with a 600-V lifetime working voltage and 3-kVRMS basic isolation.
- Integrated electrical shielding for excellent common-mode rejection and transient immunity.
- Bidirectional and unidirectional current sensing options.
- Zero drift internal reference.
- Operating supply range of 3 V to 5.5 V.
- Signal bandwidth of 80 kHz.
- Multiple sensitivity options (50 mV/A, 100 mV/A, 200 mV/A, 400 mV/A).
- 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 primary function of the TMCS1101A3UQDRQ1?
The TMCS1101A3UQDRQ1 is a galvanically isolated Hall-effect current sensor designed for high accuracy DC or AC current measurement.
- What is the sensitivity of the TMCS1101A3UQDRQ1?
The sensitivity of the TMCS1101A3UQDRQ1 is 200 mV/A.
- What is the total error range of the TMCS1101A3UQDRQ1?
The total error range is ±0.51% typical and ±1.15% maximum over the temperature range of –40°C to 85°C.
- What is the isolation rating of the TMCS1101A3UQDRQ1?
The isolation rating is 3-kVRMS with a 600-V lifetime working voltage.
- What is the operating supply range of the TMCS1101A3UQDRQ1?
The operating supply range is from 3 V to 5.5 V.
- What are the safety certifications for the TMCS1101A3UQDRQ1?
The device is certified under UL 1577 and IEC/CB 62368-1.
- What are the typical applications of the TMCS1101A3UQDRQ1?
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 maximum allowable continuous RMS current for the TMCS1101A3UQDRQ1?
The maximum allowable continuous RMS current is 16 A at 125°C.
- What is the signal bandwidth of the TMCS1101A3UQDRQ1?
The signal bandwidth is 80 kHz.
- Does the TMCS1101A3UQDRQ1 support bidirectional current sensing?
- What is the package type and body size of the TMCS1101A3UQDRQ1?
The package type is SOIC (8) with a body size of 4.90 mm × 3.90 mm.
