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Texas Instruments LM339PWRE4 — Analog & Data Acquisition

LM339PWRE4 Quad Differential Comparator, 14-TSSOP, 2V-30V

MPNLM339PWRE4
End of Life

Texas Instruments LM339PWRE4, quad differential comparator, 14-TSSOP package, 2V to 30V supply, 20mA output, 0°C to 70°C, Tape & Reel.

Texas Instruments LM339PWRE4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM339PWRE4 specifications
ParameterValue
TypeDifferential
Output typeCMOS, MOS, Open-Collector, TTL
MountingSurface Mount
Voltage - input offset5mV @ 30V
Voltage - supply, single (Dual (±))2V ~ 30V, ±1V ~ 15V
Output current20mA
Current - quiescent2.5mA
Current - input bias0.25µA @ 5V
Operating temperature0°C~70°C
PackageTape & Reel (TR)
Case14-TSSOP (0.173\", 4.40mm Width)
Number of elements4

Product details

Quad differential comparator in a 14-TSSOP footprint

It accepts a single supply from 2V to 30V or a dual supply from ±1V to ±15V, making it a flexible fit for mixed-voltage boards where one rail powers the comparator and the other sets the reference.

Each of the four comparators can sink up to 20 mA typical at the output. The open-collector output stage lets you pull up to a voltage independent of the comparator supply — useful for interfacing 5 V logic from a 12 V-powered comparator, or driving a small relay coil directly without a buffer transistor. The quiescent current draw is 2.5 mA max across all four channels. That keeps the thermal load low in the 14-TSSOP package, which has no exposed pad — the copper pour on the PCB is the only heat path.

This part belongs in benchtop instruments, office peripherals, appliance control boards, and similar indoor environments.

Frequently asked questions

Can LM339PWRE4 replace LM339DR?

The LM339PWRE4 and LM339DR are both quad differential comparators from TI, but they differ in package. The LM339PWRE4 comes in a 14-TSSOP (4.40 mm width), while the LM339DR is in a 14-SOIC. The pin functions are the same — the standard LM339 quad-comparator pinout — so the electrical replacement is direct. The PCB footprint, however, is different: TSSOP has a tighter 0.65 mm lead pitch versus SOIC's 1.27 mm. If the board is laid out for SOIC, the TSSOP part will not fit without a redesign or an adapter. Check the existing board's pad pattern before ordering.

What is the typical power consumption of LM339PWRE4?

The maximum quiescent current for all four comparators combined is 2.5 mA. At a 5 V supply, that is about 12.5 mW worst-case — negligible in most designs. The actual power draw depends on the output load current, which can add up to 20 mA per channel when the output is sinking.