Texas Instruments LMV339ID

Overview

LMV339ID from Texas Instruments is a quad low-voltage rail-to-rail input comparator with open-collector outputs, operating from 2.7 V to 5.5 V supply. It delivers 100 μA typical supply current, 150 mV typical output saturation voltage, and supports input common-mode voltage down to ground - enabling direct sensing in battery-powered and 3.3 V logic systems such as server power supplies and cordless tool battery management.

For engineers reviewing the LMV339ID datasheet, LMV339ID pinout, LMV339ID application, or LMV339ID equivalent, key selection criteria include its quad-channel open-drain architecture, −40°C to +125°C operating range, SOIC-14 package compatibility, and verified performance at both 2.7 V and 5 V supply rails.

Technical Context

The LMV339ID implements four independent PNP-input comparators with rail-to-rail input capability extending to ground, enabling accurate threshold detection in single-supply systems. Its open-collector NPN output stage allows flexible pull-up configuration for level-shifting and wired-AND logic functions across mixed-voltage domains.

Each comparator features low input bias current (≤250 nA typ), low input offset voltage (±7 mV max), and propagation delays of 200 ns (tPHL) / 300 ns (tPLH) at 5 V with 100 mV overdrive - optimized for fast response in overvoltage protection and battery charge-state monitoring.

Key Specifications

Pinout & Package

LMV339ID is housed in a 14-pin SOIC (D) package measuring 3.91 mm × 8.65 mm, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. The device uses industry-standard lead finish (NiPdAu) and is rated 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, LMV339ID uniquely balances ultra-low quiescent current, guaranteed ground-sensing capability, and full industrial temperature qualification - making it the optimal choice for battery-constrained, high-reliability embedded systems requiring precise low-voltage threshold detection.

Availability

LMV339ID is available at Aetrix Electronics and suitable for server power supply monitoring, vacuum robot battery management, cordless power tool motor control, and building automation sensor interface requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV339ID 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 signal chain and power management ICs.

The LMV339ID belongs to TI's general-purpose low-voltage comparator family, designed specifically for cost-sensitive, space-constrained applications demanding low power, wide supply range, and robust performance in portable and industrial equipment.

FAQ

What is the maximum supply voltage rating for LMV339ID?

The absolute maximum supply voltage for LMV339ID is 5.5 V. Exceeding this value risks permanent damage. The device is characterized for reliable operation from 2.7 V to 5.5 V, with electrical specifications fully guaranteed across that range. At 5 V, LMV339ID delivers 200 ns propagation delay and 150 mV typical output saturation voltage - making it ideal for 5 V logic interfacing and server PSU monitoring where tight voltage margins exist.

Does LMV339ID support true ground-referenced input operation?

Yes, LMV339ID guarantees input common-mode voltage range down to −0.1 V at 25°C and 0 V across the full −40°C to +125°C temperature range. This enables direct connection of the inverting or non-inverting input to system ground - critical for current-sense amplifier outputs, thermistor dividers, and other 0 V–referenced analog sources without level-shifting components. The PNP input stage ensures stable operation even when inputs sit at ground potential.

Can LMV339ID outputs drive a 3.3 V logic input directly?

Yes, LMV339ID's open-collector outputs can drive 3.3 V logic inputs when paired with an external pull-up resistor to 3.3 V. The output NPN transistor sinks current to ground when active, producing a logic-low voltage ≤150 mV (typical) at 4 mA sink - well within 3.3 V CMOS input low threshold (≤0.8 V). No level-shifter IC is needed, simplifying interface design in mixed-voltage systems such as microcontroller-based battery monitors using LMV339ID.

What is the thermal performance of LMV339ID in SOIC-14 package?

LMV339ID in SOIC-14 (D) package has a junction-to-ambient thermal resistance (RθJA) of 136°C/W. At 100 μA supply current and 5 V operation, total power dissipation is ~500 μW - resulting in negligible self-heating (<0.1°C rise) under normal conditions. This low thermal load eliminates need for heatsinking and supports dense placement in thermally constrained layouts like multi-layer server PSU control boards.

Is LMV339ID pin-compatible with LM339?

No, LMV339ID is not pin-compatible with standard LM339. While both are quad comparators in 14-pin packages, LM339 uses pin assignments where outputs occupy pins 1, 2, 13, and 14, whereas LMV339ID places outputs on pins 1, 2, 4, and 13. Additionally, LMV339ID assigns GND to pin 11 and VCC+ to pin 12 - differing from LM339's pin 4 (GND) and pin 14 (VCC+). Board redesign is required for migration; refer to Table 4-1 in TI's SLCS136V datasheet for full pin mapping of LMV339ID.