LM339PWR

Overview

The LM339PWR is a quad differential analog comparator manufactured by Texas Instruments, housed in a 14-TSSOP surface-mount package. It operates on a single supply voltage ranging from 2 V to 30 V or dual supplies of ±1 V to ±15 V. The device features four independent channels with open-collector outputs capable of sinking up to 6 mA per channel. Key electrical specifications include a typical response time of 1.3 µs, a maximum input offset voltage of 5 mV at 30 V, and an operating supply current of 2.5 mA maximum. It functions within a commercial temperature range of 0°C to 70°C.

Feature Summary

• Integrates four independent high-gain differential comparators for multi-channel signal processing.
• Features open-collector outputs that facilitate direct interfacing with various logic families and bus systems.
• Designed for low power consumption with minimal operating supply current requirements.
• Supports wide single or split power supply operation for flexible system integration.

Applications

• Temperature sensing circuits utilizing thermistor bridges
• Over-voltage and under-voltage protection monitoring
• Logic level translation between different voltage domains

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape-and-reel quantity. Ensure the component meets RoHS compliance standards required for your assembly process. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

Selection Notes

Select this component when multiple independent comparison functions are required in a compact surface-mount footprint. Consider the open-collector output structure for applications requiring wired-AND configurations or interface with higher voltage logic levels. Evaluate the 1.3 µs response time against signal frequency requirements to ensure adequate propagation delay performance.

Part Context

This part belongs to the LM339 family of low-power quad comparators, widely used in industrial and consumer electronics. The PWR suffix denotes the TSSOP-14 package variant, distinguishing it from DIP or SOIC versions. It serves as a standard solution for general-purpose analog-to-digital conversion interfaces and threshold detection tasks.

Replacement Considerations

LM339MX-NOPB: Pin-compatible alternative in SOIC-14 package with similar electrical characteristics.

FAQ

What is the maximum output current capability per channel?

Each output channel can sink a maximum current of 6 mA.

Does the LM339PWR include a shutdown feature?

No, the device does not have a dedicated shutdown pin or mode.