LM393TLX/NOPB

Overview

The LM393TLX/NOPB is a dual low-power voltage comparator manufactured by Texas Instruments, designed for automotive applications. It features an open-collector output compatible with CMOS and TTL logic levels. The device operates on a single supply voltage ranging from 2 V to 28 V or dual supplies of ±1 V to ±14 V. Key electrical specifications include a typical response time of 1.3 µs, a maximum input offset voltage of 5 mV, and a typical quiescent current of 0.4 mA. It is housed in an 8-pin DSBGA package.

Feature Summary

• Qualified for automotive applications with high reliability standards
• Dual differential comparators integrated into a compact surface-mount package
• Open-collector outputs allow flexible interfacing with various digital logic families

Applications

• Automotive sensor signal conditioning
• Voltage monitoring circuits
• Over-voltage protection systems

Procurement Notes

Verify the specific suffix TLX against the official Texas Instruments datasheet to confirm the DSBGA-8 package configuration and automotive qualification status. Ensure compatibility with the target PCB footprint and reflow soldering profile requirements for this small-outline package type before finalizing procurement orders.

Selection Notes

Select this component when automotive-grade reliability is required alongside low power consumption. The open-collector output necessitates an external pull-up resistor, which must be sized according to the load capacitance and desired switching speed. Verify that the 2 V minimum supply voltage aligns with the system's available power rails.

Part Context

This part belongs to the LM393 family of dual comparators, known for their low cost and wide operating voltage range. The NOPB suffix indicates lead-free construction compliant with RoHS directives. The TLX variant specifically denotes the micro-package form factor suitable for space-constrained designs.

Replacement Considerations

LM393DRG4: Standard SOIC-8 package version without explicit automotive qualification. LM393N: Through-hole DIP-8 package version. Verify pinout compatibility and thermal performance differences when substituting these variants.