TMCS1100A4QDT

Current Sensors Overview

The TMCS1100A4QDT is a board-mount current sensor featuring ±600V basic isolation and an 8-SOIC package. It utilizes Hall-effect technology with external reference capabilities, supporting AC/DC measurements up to 20Arms at 80kHz. The device operates on a 4.5V to 5.5V supply, drawing a maximum of 6mA. Key electrical parameters include a sensitivity of 400mV/A, a response time of 6.5µs, and linearity of ±0.05%. It functions within a temperature range of -40°C to 125°C.

Current Sensors Feature Summary

• Galvanically isolated Hall-effect sensing for high-voltage applications
• High precision with low drift and temperature compensation
• External reference capability for flexible system integration

Current Sensors Applications

• Motor drive current sensing
• Power supply monitoring
• Industrial inverter control

Current Sensors Procurement Notes

Verify the specific suffix 'QDT' corresponds to the SOIC-8 package variant when ordering. Confirm that the design incorporates an external voltage reference circuit, as this model requires one unlike other variants in the series. Ensure the PCB footprint matches the 8-SOIC dimensions provided in the official datasheet to guarantee proper thermal and mechanical performance.

Current Sensors Selection Notes

Select this component when ±600V isolation is required alongside precise AC or DC current measurement. The external reference feature allows customization of output scaling. Consider the 80kHz bandwidth for switching applications. Compare against non-isolated shunt solutions if galvanic isolation is mandatory for safety or noise reduction in high-side configurations.

Current Sensors Part Context

This part belongs to the TMCS1100 family of zero-drift Hall-effect current sensors from Texas Instruments. These devices are designed to replace traditional isolated amplifier topologies, offering superior accuracy over temperature. The A4QDT designation indicates the specific pinout and reference configuration for automotive-grade reliability.

Current Sensors Replacement Considerations

Direct replacements within the same family include TMCS1100A3QDRQ1, though it lacks the external reference feature. Verify pin compatibility and isolation voltage ratings before substitution. Other TI Hall-effect sensors may require different reference circuits.