TLC139MFKB

Comparators Overview

The TLC139MFKB is a quad differential voltage comparator manufactured by Texas Instruments, utilizing the LinCMOS process for superior analog performance. It operates from a single supply ranging from 4 V to 16 V and features an open-drain output stage. The device is characterized for military temperature operation between -55°C and 125°C. Key electrical specifications include a typical input offset voltage of 5 mV at 25°C and a maximum of 10 mV across the full temperature range. It consumes approximately 80 µA of supply current with outputs low and no load.

Comparators Feature Summary

• Extremely stable input offset voltages even under differential input stresses
• High input impedance with very low power consumption
• On-chip ESD protection for enhanced reliability
• Open-drain MOS output stage compatible with various logic families

Comparators Applications

• Precision threshold detection circuits
• Voltage monitoring systems
• Battery management applications
• Industrial control interfaces

Comparators Procurement Notes

Verify the specific ordering suffix FK corresponds to the ceramic chip carrier package required for your design. Confirm that the military grade temperature rating aligns with your environmental specifications. Ensure pull-up resistors are selected appropriately for the open-drain output configuration to meet system voltage requirements.

Comparators Selection Notes

Select this component when low power consumption and high stability are critical compared to standard bipolar comparators. The LinCMOS process offers significantly lower power usage than similar LM139 devices while maintaining comparable response times. Consider the ceramic package for harsh environments requiring robust thermal handling and hermetic sealing capabilities.

Comparators Part Context

This part belongs to the TLC139/TLC339 family of quad comparators. The TLC139 variant is specifically designated for military temperature ranges, whereas the TLC339 covers commercial and industrial ranges. The FK suffix denotes the ceramic chip carrier package, distinguishing it from plastic DIP or surface mount options available in the broader series.

Comparators Replacement Considerations

The LM139 is functionally similar but uses bipolar technology with higher power consumption. For push-pull output requirements, the TLC3704 is the recommended alternative within the same manufacturer portfolio. Verify pin compatibility and thermal dissipation ratings when substituting packages.

Comparators FAQ

What is the common-mode input voltage range for the TLC139MFKB?

The common-mode input voltage range extends from 0 V to VDD minus 1.5 V.

How does the output stage interface with other logic families?

The open-drain CMOS output stage allows interfacing to a variety of leads and supplies, as well as supporting wired logic functions through external pull-up resistors.