Texas Instruments LMV339IPWRE4

Overview

LMV339IPWRE4 from Texas Instruments is a quad general-purpose low-voltage comparator IC designed for single-supply operation from 2.7 V to 5.5 V. It features open-collector outputs, 100 μA typical supply current at 2.7 V, input common-mode range extending to ground, and 150 mV typical output saturation voltage. It is used in server PSU monitoring, building automation sensor interfaces, and cordless power tool battery management.

For engineers reviewing the LMV339IPWRE4 datasheet, LMV339IPWRE4 pinout, LMV339IPWRE4 application, or LMV339IPWRE4 equivalent, key selection criteria include supply voltage compatibility (2.7–5.5 V), quad-channel open-drain output configuration, input offset voltage ≤7 mV, operating temperature range (–40°C to +125°C), and TSSOP-14 package thermal performance (R_θJA = 155°C/W).

Technical Context

The LMV339IPWRE4 implements four independent PNP-input comparators with rail-to-rail input capability down to ground, enabling accurate threshold detection in low-voltage systems. Its open-collector outputs support wired-AND logic and flexible level-shifting across logic families (e.g., interfacing 3.3 V sensors to 5 V microcontrollers).

Each comparator operates with input bias current ≤250 nA and input offset voltage ≤7 mV at 25°C, maintaining stable decision thresholds across –40°C to +125°C. Propagation delay is 350 ns (high-to-low) at 100 mV overdrive and 5 V supply, supporting real-time response in power sequencing and fault detection circuits.

Key Specifications

Pinout & Package

TSSOP-14 package (4.40 mm × 5.00 mm body size, 0.65 mm pitch), lead-free with NiPdAu finish, MSL Level-1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad low-voltage comparator applications.

Compared with LM339DR and TLV339IPWR, LMV339IPWRE4 provides optimal balance of low-voltage operation (2.7 V min), ground-sensing capability, and moderate quiescent current (100 μA), making it ideal for cost-sensitive industrial and portable equipment where 2.7–5.5 V supply and ground-referenced sensing are primary requirements.

Availability

LMV339IPWRE4 is available at Aetrix Electronics and suitable for server PSU monitoring, building automation sensor interfaces, and cordless power tool battery management requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV339IPWRE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision analog ICs and industrial-grade components.

The LMV339 product line delivers cost-effective, low-voltage quad comparators optimized for portable consumer and industrial applications where space, power efficiency, and ground-referenced sensing are critical design constraints.

FAQ

What is the maximum supply voltage for LMV339IPWRE4?

The absolute maximum supply voltage for LMV339IPWRE4 is 5.5 V. Operation beyond this risks permanent damage. The recommended operating range is 2.7 V to 5.5 V, ensuring full specification compliance including input common-mode range and propagation delay. At 5.5 V, supply current rises to 350 μA (max) across temperature, and output saturation voltage increases to 700 mV (max) at –40°C to +125°C. LMV339IPWRE4 must not be operated above 5.5 V under any condition.

Does LMV339IPWRE4 support true ground-referenced input operation?

Yes, LMV339IPWRE4 supports true ground-referenced input operation: its input common-mode voltage range extends to –0.1 V at 25°C and 0 V across –40°C to +125°C. This is enabled by its PNP-input stage, allowing accurate comparison of signals referenced to system ground-such as current-sense amplifier outputs or thermistor divider voltages-without level-shifting circuitry. The LMV339IPWRE4 datasheet confirms VICR includes ground under all specified operating conditions.

What is the output configuration of LMV339IPWRE4 and how should it be used?

LMV339IPWRE4 features four independent open-collector outputs. Each output requires an external pull-up resistor to a logic-compatible voltage (1.8 V to 5.5 V). When the comparator's IN– exceeds IN+, the internal NPN transistor sinks current, pulling the output low; otherwise, the output floats high-impedance. This configuration enables wired-AND logic, level translation, and direct interfacing to microcontroller GPIOs with internal pull-ups. LMV339IPWRE4 does not support push-pull outputs.

Can LMV339IPWRE4 replace LM339 in existing designs?

LMV339IPWRE4 can replace LM339 in many designs but requires verification of supply voltage and input common-mode compatibility. LMV339IPWRE4 operates from 2.7 V to 5.5 V (vs LM339's 2 V to 36 V), so it is unsuitable for >5.5 V systems. However, its ground-sensing capability and lower supply current (100 μA vs 500 μA) improve performance in 3.3 V/5 V battery-powered applications. Pinout is identical in SOIC-14, but LMV339IPWRE4 uses TSSOP-14-PCB layout change is required unless footprint is compatible.

What is the typical input offset voltage of LMV339IPWRE4 and how does it affect accuracy?

The typical input offset voltage of LMV339IPWRE4 is 7 mV at 25°C, with a maximum of 9 mV across –40°C to +125°C. This offset introduces a fixed error in threshold detection: for example, a target 2.5 V trip point may trigger between 2.491 V and 2.509 V depending on unit variation and temperature. Applications requiring <1 mV accuracy (e.g., precision instrumentation) should consider alternatives like TLV339IPWR (1.5 mV max). LMV339IPWRE4's offset is well-suited for industrial control thresholds where ±10 mV tolerance is acceptable.