TSX339IQ4T

Overview

The TSX339IQ4T is a micropower CMOS quad voltage comparator manufactured by STMicroelectronics, housed in a QFN16 3x3 package. It operates on a single supply voltage ranging from 2.7 V to 16 V or dual supplies of ±1.35 V to ±8 V. The device features an open-drain output and exhibits a typical supply current of 5 µA per comparator. Key electrical characteristics include a typical input offset voltage of 0.1 mV, extremely low input bias current of 1 pA, and high input impedance of 10^12 Ω. Response time is typically 2 µs for a 5 mV overdrive. It supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Micropower consumption with 5 µA typical current draw per comparator
• High input impedance and extremely low input bias current
• Wide single or dual supply voltage operation
• Open-drain output configuration

Applications

• Automotive systems
• Industrial applications

Procurement Notes

Verify the specific ordering code TSX339IQ4T against the manufacturer's official documentation to confirm the QFN16 3x3 package and industrial temperature grade. Ensure compatibility with system requirements regarding the open-drain output structure and supply voltage limits before finalizing procurement.

Selection Notes

Select this component when low power consumption and high input impedance are critical design constraints. It serves as a direct pin-to-pin and functionally compatible replacement for the TS339 series. Consider the QFN16 3x3 package size if board space is limited compared to TSSOP14 or SO14 options.

Part Context

The TSX339IQ4T belongs to the TSX339 family of micropower quad CMOS comparators. This series was developed as an improvement over the legacy TS339, offering lower current consumption, better input offset voltage performance, and enhanced ESD tolerance. The IQ4T suffix specifically denotes the QFN16 3x3 surface-mount package variant.

Replacement Considerations

The TSX339 is fully compatible with the TS339 quad CMOS comparator.