LM339PW

Overview

The LM339PW is a quad differential comparator manufactured by Texas Instruments, housed in a TSSOP-14 surface-mount package. It operates within a supply voltage range of 2 V to 30 V and draws a typical quiescent current of 500 uA. The device features an open collector output capable of sinking up to 6 mA per channel. Key electrical specifications include a response time of 1.3 us, an input offset voltage (Vos) of 3 mV, and an input bias current (Ib) of 250 nA. It supports a wide operating temperature range from 0 C to +70 C.

Feature Summary

• Integrates four independent differential comparators in a single low-profile surface-mount package
• Features open collector outputs compatible with various logic families including CMOS and TTL
• Designed for low power consumption with minimal quiescent current draw
• Supports wide single-supply voltage operation for flexible system integration

Applications

• Battery-powered systems requiring low standby current
• Temperature sensing circuits using thermistors or RTDs
• Over-voltage and under-voltage protection monitoring
• Window comparator configurations for signal threshold detection

Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-14 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the intended application falls within the specified commercial temperature range of 0 C to +70 C. Cross-reference pinouts with the official datasheet to prevent layout errors during PCB design implementation.

Selection Notes

Select this component when a quad comparator solution is required in a compact surface-mount form factor. The open collector output allows for wired-AND connections and level shifting to different voltage domains. Consider the 1.3 us propagation delay for timing-sensitive applications. Evaluate the 3 mV input offset voltage against the required signal resolution for precision tasks.

Part Context

This part belongs to the LM339 family of analog comparators, widely used for general-purpose voltage comparison tasks. The 'PW' designation specifically indicates the Thin Shrink Small Outline Package (TSSOP). It serves as a direct pin-compatible alternative to legacy DIP packages while offering reduced board space requirements for modern electronics manufacturing.

Replacement Considerations

LM339DR: SOIC-14 package variant with similar electrical characteristics. LM339AN/NOPB: PDIP-14 through-hole package equivalent. LM339APW: Higher precision version with improved offset voltage specifications.