Overview
The TMCS1101A2BQDR, produced by Texas Instruments, is a high-accuracy galvanically isolated Hall-effect current sensor. This device is designed for precise 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 125°C. The TMCS1101A2BQDR is part of the TMCS1101 family, which includes various sensitivity options and both unidirectional and bidirectional current sensing variants.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sensitivity | 100 mV/A | mV/A |
| Total Error | ±0.51% (typical), ±1.15% (maximum) | % |
| Sensitivity Error | ±0.5% | % |
| Offset Error | ±10 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 |
| Lifetime 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 |
| Allowable Continuous RMS Current | 30 A (at 25°C), 16 A (at 125°C) | A |
| Maximum Supply Current | 6 mA | mA |
Key Features
- Bidirectional and unidirectional current sensing capabilities.
- High accuracy with total error of less than 1.5% across the device temperature range.
- Low-drift, temperature-compensated signal chain.
- Galvanic isolation with 3 kVRMS basic isolation and 600-V lifetime working voltage.
- Integrated electrical shielding for excellent common-mode rejection and transient immunity.
- Multiple sensitivity options: 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A.
- Operating supply range from 3 V to 5.5 V.
- Signal bandwidth of 80 kHz.
- 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 typical total error of the TMCS1101A2BQDR?
The typical total error is ±0.51%, with a maximum error of ±1.15% across the device temperature range.
- What are the sensitivity options available for the TMCS1101 family?
The sensitivity options are 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A.
- What is the operating supply range for the TMCS1101A2BQDR?
The operating supply range is from 3 V to 5.5 V.
- What is the signal bandwidth of the TMCS1101A2BQDR?
The signal bandwidth is 80 kHz.
- Does the TMCS1101A2BQDR support bidirectional current sensing?
- What is the maximum allowable continuous RMS current for the TMCS1101A2BQDR at 25°C?
The maximum allowable continuous RMS current at 25°C is 30 A.
- What are the safety certifications for the TMCS1101A2BQDR?
The device has safety-related certifications including UL 1577 and IEC/CB 62368-1.
- What is the input conductor resistance of the TMCS1101A2BQDR?
The input conductor resistance is 1.8 mΩ.
- What is the maximum supply current drawn by the TMCS1101A2BQDR?
The maximum supply current is 6 mA.
- What are some common applications of the TMCS1101A2BQDR?
