Overview
The TMCS1100A4QDRQ1 is a galvanically isolated Hall-effect current sensor produced by Texas Instruments. It is designed for high-precision DC or AC current measurement with excellent accuracy, linearity, and temperature stability. This sensor features a low-drift, temperature-compensated signal chain that ensures less than 1% full-scale error across the device's temperature range. The device is AEC-Q100 qualified, making it suitable for automotive applications, and it operates within a temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Sensor Type | Hall Effect |
| Package | 8-SOIC |
| Voltage Supply | 3 V to 5.5 V |
| Operating Temperature | –40°C to 125°C |
| Linearity Error | ±0.05% |
| Frequency Response | Up to 80 kHz |
| Sensitivity | 400 mV/A (TMCS1100A4-Q1) |
| Output Type | Ratiometric, Voltage |
| Current Supply (Max) | 6 mA |
| Accuracy | ±0.4% |
| Polarization | Bidirectional |
| Number of Channels | 1 |
| Mounting Type | Surface Mount |
| Isolation Rating | 3-kV RMS |
| Lifetime Working Voltage | 600 V |
Key Features
- Galvanic Isolation: Provides 3-kV RMS basic isolation and a 600-V lifetime working voltage between the current path and circuitry.
- High Accuracy and Linearity: Total error of ±0.4% typical and ±0.9% maximum, with a linearity error of ±0.05% across the operating temperature range.
- Temperature Stability: Proprietary temperature compensation techniques ensure stable sensitivity and minimize offset errors across the full temperature range.
- Bidirectional Current Sensing: Capable of bidirectional current sensing with an external reference voltage input.
- Low Power Consumption: Maximum supply current of 6 mA.
- Wide Operating Voltage Range: Operates from a single 3-V to 5.5-V power supply.
- High Frequency Response: Signal bandwidth of up to 80 kHz.
- Multiple Sensitivity Options: Available in different sensitivity variants (50 mV/A, 100 mV/A, 200 mV/A, 400 mV/A).
- Safety Certifications: UL 1577 Component Recognition Program and IEC/CB 62368-1 compliant.
Applications
- Motor Control: Suitable for precise current measurement in motor control systems.
- Power Supply Monitoring: Used for monitoring current in power supply units.
- Battery Management: Ideal for battery management systems requiring accurate current sensing.
- Industrial Automation: Applied in various industrial automation applications requiring high-precision current measurement.
- Renewable Energy Systems: Used in renewable energy systems such as solar and wind power for current monitoring.
Q & A
- What is the operating temperature range of the TMCS1100A4QDRQ1?
The operating temperature range is –40°C to 125°C.
- What is the maximum supply current of the TMCS1100A4QDRQ1?
The maximum supply current is 6 mA.
- What are the sensitivity options available for the TMCS1100-Q1 series?
The sensitivity options are 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A.
- Is the TMCS1100A4QDRQ1 suitable for automotive applications?
Yes, it is AEC-Q100 qualified for automotive applications.
- What is the isolation rating of the TMCS1100A4QDRQ1?
The isolation rating is 3-kV RMS, with a 600-V lifetime working voltage.
- Can the TMCS1100A4QDRQ1 measure both DC and AC currents?
Yes, it is capable of measuring both DC and AC currents.
- What is the frequency response of the TMCS1100A4QDRQ1?
The signal bandwidth is up to 80 kHz.
- Does the TMCS1100A4QDRQ1 support bidirectional current sensing?
Yes, it supports bidirectional current sensing with an external reference voltage input.
- What are the safety certifications of the TMCS1100A4QDRQ1?
It is certified under UL 1577 Component Recognition Program and IEC/CB 62368-1.
- What is the typical total error of the TMCS1100A4QDRQ1?
The typical total error is ±0.4%, with a maximum error of ±0.9% from –40°C to 85°C..
