TSX393IQ2T

Overview

The TSX393IQ2T is a micropower dual CMOS voltage comparator manufactured by STMicroelectronics. It features an open-drain output and operates within a supply voltage range of 2.7 V to 16 V or ±1.35 V to ±8 V. The device exhibits a typical quiescent current of 5 µA per comparator and supports a maximum output sink current of 20 mA. Key electrical parameters include a propagation delay of 2.5 µs, an input offset voltage of 5 mV, and a common-mode rejection ratio of 85 dB. It functions reliably across a temperature range of -40°C to +125°C and is housed in an 8-DFN (2x2 mm) package.

Feature Summary

• Micropower CMOS architecture with extremely low input bias current for high impedance sensing
• Wide single-supply operating range compatible with various logic families
• Open-drain output configuration allowing flexible interfacing and level shifting
• Enhanced electrostatic discharge tolerance for robust system protection

Applications

• Battery-powered portable devices requiring minimal standby current
• Window comparator circuits for voltage monitoring
• Threshold detection in sensor signal conditioning
• Automotive grade applications utilizing the SO8 or DFN8 packages

Procurement Notes

Verify the specific suffix IQ2T against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint for the 8-DFN form factor. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement orders.

Selection Notes

Select this component when low power consumption is critical alongside precise voltage threshold detection. The dual-channel design reduces board space compared to single comparators. Consider the open-drain output requirement for pull-up resistor integration. Verify that the 2.7 V minimum supply voltage aligns with your system's available rail.

Part Context

This part belongs to the TSX393 series, which serves as an improved version of the TS393. It offers lower current consumption, better input offset voltage, and enhanced ESD tolerance. The series includes automotive-grade options and new compact packages like MiniSO8 and DFN8 to support higher integration density in modern electronic designs.

Replacement Considerations

The TS393 is the predecessor model. Verify if the improved offset voltage and ESD specs are required. Check pinout compatibility between the legacy TS393 and the TSX393IQ2T to ensure direct substitution without schematic modifications.