Overview
The TMCS1100A3QDR is a high-precision, galvanically isolated Hall-effect current sensor produced by Texas Instruments. This device is designed to provide accurate and reliable current measurements for both DC and AC currents. It features a low-drift, temperature-compensated signal chain that ensures less than 1% full-scale error across a wide temperature range of -40°C to 125°C. The sensor integrates an internal 1.8-mΩ conductor and a Hall-effect sensor, eliminating the need for external concentrators and minimizing power loss and thermal dissipation.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Continuous current (max) (A) | 20 | Working isolation voltage (VIOWM) (Vrms) | 424 |
| Magnetic sensitivity (typ) (mV/A) | 50, 100, 200, 400 | Input offset current (±) (max) (mA) | 40, 47.5, 50, 60 |
| Input offset current drift (±) (typ) (µA/°C) | 0.1 | Supply voltage (max) (V) | 5.5 |
| Supply voltage (min) (V) | 3 | Iq (max) (mA) | 6 |
| CMTI (kV/µs) | 25 | Small-signal bandwidth (Hz) | 80,000 |
| Sensitivity error (%) | 0.2 | Sensitivity error drift (±) (max) (ppm/°C) | 50 |
| Operating temperature range (°C) | -40 to 125 | Creepage (min) (mm) | 4 |
| Clearance (min) (mm) | 4 | Isolation rating | Basic |
| Surge isolation voltage (VIOSM) (VPK) | 6000 | Package/Case | SOIC (D)-8 |
Key Features
- Fault detection and isolation module
- Real-time diagnostic and monitoring capabilities
- Remote software updates and configuration
- Secure data access and management
- High accuracy and exceptional linearity for both DC and AC current measurements
- Temperature stability and low-drift signal chain ensuring less than 1% full-scale error across a wide temperature range
- Internal 1.8-mΩ conductor and integrated Hall-effect sensor, eliminating the need for external concentrators
- Galvanic insulation providing a 600-V lifetime working voltage and 3-kV RMS isolation
- Multiple sensitivity options: 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A
- Operating supply range: 3 V to 5.5 V
- Signal bandwidth: 80 kHz
- External reference voltage for bidirectional or unidirectional current sensing
Applications
- Motor and load control
- Inverter and H-bridge current measurements
- Power factor correction
- Overcurrent protection
- DC and AC power monitoring
- Industrial automation
- Automotive systems
- Renameable energy and battery management systems
Q & A
- Q: What is the TMCS1100A3QDR used for?
A: The TMCS1100A3QDR is a high-precision, galvanically isolated Hall-effect current sensor used for accurate DC and AC current measurements in various applications such as motor control, power management, and energy monitoring systems.
- Q: What is the operating temperature range of the TMCS1100A3QDR?
A: The operating temperature range of the TMCS1100A3QDR is -40°C to 125°C.
- Q: What is the isolation rating of the TMCS1100A3QDR?
A: The TMCS1100A3QDR has a 600-V lifetime working voltage and 3-kV RMS basic isolation rating.
- Q: What are the sensitivity options for the TMCS1100A3QDR?
A: The TMCS1100A3QDR offers multiple sensitivity options: 50 mV/A, 100 mV/A, 200 mV/A, and 400 mV/A.
- Q: How does the TMCS1100A3QDR ensure high accuracy?
A: The TMCS1100A3QDR ensures high accuracy through its low-drift, temperature-compensated signal chain, which maintains less than 1% full-scale error across a wide temperature range.
- Q: What is the package type of the TMCS1100A3QDR?
A: The TMCS1100A3QDR is available in an 8-pin SOIC (D) package.
- Q: Can the TMCS1100A3QDR be used for bidirectional current sensing?
A: Yes, the TMCS1100A3QDR can be used for both bidirectional and unidirectional current sensing through its external reference voltage input.
- Q: What is the maximum supply current of the TMCS1100A3QDR?
A: The maximum supply current of the TMCS1100A3QDR is 6 mA.
- Q: How does Ovaga ensure the authenticity of the TMCS1100A3QDR?
A: Ovaga ensures the authenticity of the TMCS1100A3QDR by rigorously testing and verifying the credentials of original Texas Instruments manufacturers and authorized agents.
- Q: Where can I find detailed information about the TMCS1100A3QDR?
A: Detailed information about the TMCS1100A3QDR can be found in the datasheet available on Texas Instruments' website or through Ovaga's platform.
