Overview
The TMCS1107A1BQDRQ1 is a high-precision, galvanically isolated Hall-effect current sensor produced by Texas Instruments. This device is designed for accurate measurement of both DC and AC currents with excellent linearity and temperature stability. It is AEC-Q100 qualified, making it suitable for automotive applications, and it also meets various safety standards such as UL 1577 and IEC/CB 62368-1. The sensor features a low-drift, temperature-compensated signal chain that ensures a total error of ±3% maximum across the operating temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (8) | - |
| Body Size | 4.90 mm × 3.90 mm | - |
| Operating Supply Range | 3 V to 5.5 V | V |
| Sensitivity Options | 50 mV/A, 100 mV/A, 200 mV/A, 400 mV/A | mV/A |
| Total Error | ±1% typical, ±3% maximum | % |
| Offset Error | ±40 mA | mA |
| Offset Drift | ±0.2 mA/°C | mA/°C |
| Linearity Error | 0.5% | % |
| Signal Bandwidth | 80 kHz | kHz |
| Isolation Rating | 3 kVRMS | kVRMS |
| Lifetime Working Voltage | 420 V | V |
| Input Conductor Resistance | 1.8 mΩ | mΩ |
| Allowable Continuous RMS Current | 30 A (at 25°C), 16 A (at 125°C) | A |
Key Features
- AEC-Q100 Qualified: Suitable for automotive applications with a temperature grade of –40°C to 125°C.
- Functional Safety-Capable: Documentation available to aid in functional safety system design.
- High Accuracy: Total error of ±1% typical, ±3% maximum across the operating temperature range.
- Multiple Sensitivity Options: Available in 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A sensitivity options.
- Bidirectional and Unidirectional Sensing: Capable of measuring both bidirectional and unidirectional currents.
- Galvanic Isolation: 3-kVRMS isolation rating and a lifetime working voltage of 420 V.
- Low Drift and High Linearity: Zero drift internal reference and low conductor resistance minimize power loss and thermal dissipation.
- Robust Common-Mode Rejection and Transient Immunity: Integrated electrical shielding provides excellent common-mode rejection and transient immunity.
Applications
- Motor and Load Control: Ideal for monitoring and controlling motors and loads in various systems.
- Inverter and H-Bridge Current Measurements: Suitable for measuring currents in inverter and H-bridge configurations.
- Power Factor Correction: Used in power factor correction circuits to improve power efficiency.
- Overcurrent Protection: Can be used to detect and prevent overcurrent conditions in electrical systems.
- DC and AC Power Monitoring: Capable of monitoring both DC and AC power in various applications.
Q & A
- What is the operating temperature range of the TMCS1107A1BQDRQ1?
The operating temperature range is –40°C to 125°C.
- What are the sensitivity options available for the TMCS1107A1BQDRQ1?
The sensitivity options are 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A.
- What is the maximum allowable continuous RMS current for the TMCS1107A1BQDRQ1?
The maximum allowable continuous RMS current is 30 A at 25°C and 16 A at 125°C.
- Does the TMCS1107A1BQDRQ1 support both DC and AC current measurements?
- What is the isolation rating of the TMCS1107A1BQDRQ1?
The isolation rating is 3 kVRMS.
- What is the lifetime working voltage of the TMCS1107A1BQDRQ1?
The lifetime working voltage is 420 V.
- What are the key safety certifications for the TMCS1107A1BQDRQ1?
The device is certified under UL 1577 and IEC/CB 62368-1.
- What is the input conductor resistance of the TMCS1107A1BQDRQ1?
The input conductor resistance is 1.8 mΩ.
- What is the signal bandwidth of the TMCS1107A1BQDRQ1?
The signal bandwidth is 80 kHz.
- Is the TMCS1107A1BQDRQ1 suitable for automotive applications?
