TMCS1100A4QDRQ1

Current Sensors Overview

The TMCS1100A4QDRQ1 is an automotive-grade, galvanically isolated Hall-effect current sensor manufactured by Texas Instruments. It features a sensitivity of 400mV/A and supports primary currents ranging from 250mA to 24A. The device operates on a 5V supply with a maximum rating of 5.5V and delivers an analog voltage output. Key electrical specifications include a response time of 6.5µs, a bandwidth of 80kHz, and linearity of ±0.05%. It is housed in an 8-SOIC package (3.98mm width, 1.75mm height) and meets AEC-Q100 qualification for operation between -40°C and +125°C.

Current Sensors Feature Summary

• Galvanic isolation via Hall-effect technology for high-voltage safety
• Automotive qualification compliant with AEC-Q100 standards
• High precision with low linearity error for accurate measurement
• Analog voltage output suitable for direct interface with control systems

Current Sensors Applications

• On-board charging systems in electric vehicles
• Motor drive current sensing
• Battery management system monitoring
• Inverter current feedback loops

Current Sensors Procurement Notes

Verify the specific suffix 'A4' corresponds to the required 400mV/A sensitivity and 24A range before ordering. Confirm that the SOIC-8 package dimensions align with the PCB footprint requirements. Ensure the design accounts for the specified operating temperature range of -40°C to +125°C. Check for any recent Product Change Notifications regarding manufacturing sites or materials. Validate that the analog output interface matches the input requirements of the downstream microcontroller or ADC.

Current Sensors Selection Notes

Select this component when high-voltage isolation and automotive reliability are required for precise current monitoring. The 400mV/A sensitivity offers a balance between signal amplitude and power dissipation. Consider the 6.5µs response time for applications requiring moderate speed. The 8-SOIC package provides a compact solution for space-constrained designs. Compare against other TMCS1100 variants if different sensitivities or current ranges are needed.

Current Sensors Part Context

This part belongs to the TMCS1100-Q1 family of precision isolated current sensors. The family includes variants with different sensitivities and current ratings, such as the TMCS1100A1, A2, and A3. All members share the same core Hall-effect technology and automotive qualification. The TMCS1100A4QDRQ1 specifically targets applications requiring higher current capacity up to 24A with a 400mV/A output scale.

Current Sensors Replacement Considerations

Other TMCS1100 variants like TMCS1100A1QDRQ1 or TMCS1100A3QDRQ1 may serve as substitutes if their sensitivity and current ranges match the application requirements. Verify pinout compatibility and package dimensions when swapping within the family.