LM339APW

Overview

The LM339APW is a quad differential analog comparator manufactured by Texas Instruments, designed for low power and low offset voltage applications. It features four independent comparators housed in a TSSOP-14 surface-mount package. The device operates within a supply voltage range of 2 V to 30 V and draws a typical operating supply current of 500 uA. Key electrical specifications include a response time of 1.3 us, an input bias current of 250 nA, and an input offset voltage of 3 mV. Each channel provides an open collector output capable of sourcing up to 6 mA. The component supports a commercial operating temperature range from 0 C to +70 C.

Feature Summary

• Integrates four independent differential comparators into a single compact package
• Features low input offset voltage characteristics for precise signal detection
• Utilizes open collector outputs compatible with various logic families
• Designed for low power consumption with minimal operating supply current

Applications

• Battery-powered systems requiring efficient power management
• Over-voltage and under-voltage protection circuits
• Temperature sensing and control loops
• Logic level shifting between different voltage domains

Procurement Notes

Verify the specific suffix APW to confirm the TSSOP-14 package variant and A-grade offset voltage specifications. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the specified commercial temperature range and supply voltage limits. Check for end-of-life notices as availability may be restricted.

Selection Notes

Select this component when multiple independent comparison functions are required in a space-constrained design. The low offset voltage makes it suitable for applications involving small signal differences. Consider the open collector output requirement for external pull-up resistors. Evaluate the TSSOP-14 package against available PCB footprint constraints and thermal dissipation requirements.

Part Context

This part belongs to the LM339 family of quad comparators, widely used in industrial and consumer electronics. The 'A' grade indicates tighter performance tolerances compared to standard variants. The PW suffix specifically denotes the thin-shrink small-outline package, distinguishing it from DIP or SOIC alternatives within the same functional family.

Replacement Considerations

LM339AN/NOPB offers equivalent functionality in a PDIP-14 through-hole package. LM339MX-NOPB provides similar performance in an SOIC-14 surface-mount format. Verify pinout compatibility and thermal characteristics when substituting across different package types.