Texas Instruments LMV339IPWR

Overview

LMV339IPWR from Texas Instruments is a quad low-voltage comparator IC designed for precision voltage comparison in space-constrained, battery-powered systems. It operates from 2.7V to 5.5V, draws only 100μA typical supply current at 2.7V, features rail-to-rail input common-mode range including ground, delivers 150mV typical output saturation voltage, and uses open-collector outputs for flexible logic-level interfacing - enabling use in server PSU monitoring and cordless power tool battery management.

For engineers reviewing the LMV339IPWR datasheet, LMV339IPWR pinout, LMV339IPWR application, or LMV339IPWR equivalent, key selection criteria include its 14-pin TSSOP package, −40°C to +125°C operating temperature, 7mV input offset voltage (typ), 100ns propagation delay at 5V with 100mV overdrive, and compatibility with 3.3V/5V logic domains via external pull-up.

Technical Context

The LMV339IPWR implements four independent PNP-input comparators with open-drain NPN output stages, enabling wired-AND functionality and level translation across voltage domains. Its input stage supports common-mode voltages down to ground and up to VCC − 0.7V, making it suitable for single-supply sensing of signals near 0V reference points.

Each comparator exhibits low input bias current (5pA typ), low input offset voltage (±0.5mV min), and stable performance across −40°C to +125°C. Propagation delay varies with supply voltage and input overdrive - e.g., 200ns (tPHL) at 5V/100mV overdrive - and output sinking capability reaches 10mA (min) at 5V.

Key Specifications

Pinout & Package

LMV339IPWR is housed in a 14-pin TSSOP package (4.40mm × 5.00mm body size) with exposed pad for thermal enhancement. Pin numbering follows standard TI TSSOP top-view orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM339DR, LMV339IPWR offers 80% lower supply current and guaranteed 2.7V operation but sacrifices absolute maximum voltage rating; versus TLV339IPWR, it trades 62% higher ICC for broader temperature validation (−40°C to +125°C vs. −40°C to +105°C) and established TSSOP manufacturability.

Availability

LMV339IPWR is available at Aetrix Electronics and suitable for server PSU monitoring, cordless power tool battery management, and building automation sensor interfaces requiring stable component supply across long production lifecycles.

Supply support for LMV339IPWR 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 conditioning and power management ICs.

The LMV339IPWR belongs to TI's general-purpose low-voltage comparator product line, engineered specifically for cost-sensitive, space-constrained applications demanding low power, wide temperature operation, and robust ESD immunity in consumer and industrial systems.

FAQ

What is the maximum supply voltage rating for LMV339IPWR?

The absolute maximum supply voltage for LMV339IPWR is 5.5V. Operation beyond this value risks permanent damage. The device is specified for reliable operation from 2.7V to 5.5V, with optimal performance at 3.3V and 5V nominal rails. Electrical characteristics such as propagation delay and input offset voltage are guaranteed across this full range, making LMV339IPWR suitable for both Li-ion battery-powered devices and standard 5V logic systems.

Does LMV339IPWR support rail-to-rail input operation?

Yes, LMV339IPWR supports rail-to-rail input common-mode voltage range from −0.1V to VCC − 0.7V, which includes ground (0V) across all temperatures. This allows direct connection of sensors referenced to system ground - such as current-sense amplifiers or thermistors - without level-shifting circuitry. However, the upper limit is constrained by the PNP input stage's VBE drop, so full rail-to-rail (0V to VCC) is not achieved at the positive rail.

Can LMV339IPWR outputs be wire-OR'd together?

Yes, all four outputs of LMV339IPWR are open-collector, enabling direct wire-OR (wired-AND logic) connections. When multiple outputs share a single pull-up resistor to a logic rail, the combined node goes low if any comparator asserts - ideal for aggregated fault signaling. Ensure total sink current remains within the 10mA per-output limit at 5V, and verify pull-up resistance values to meet VOL and rise-time requirements for the target logic family.

What is the typical propagation delay of LMV339IPWR at 3.3V supply?

At VCC = 3.3V and 100mV input overdrive, LMV339IPWR exhibits typical propagation delays of tPHL = 300ns and tPLH = 250ns, interpolated from datasheet curves at 2.7V (350ns/400ns) and 5V (200ns/300ns). These values assume RL = 5.1kΩ and CL ≤ 15pF. For timing-critical applications like motor commutation, design margin should account for worst-case 9mV input offset and temperature variation across −40°C to +125°C.

Is LMV339IPWR RoHS-compliant and lead-free?

Yes, LMV339IPWR is RoHS-compliant and lead-free, with NIPDAU (nickel-palladium-gold) lead finish. It carries an MSL Level-1 rating (260°C peak reflow, unlimited floor life), confirming suitability for standard surface-mount assembly processes. The part marking "MV339I" appears on the top-side silkscreen, and full compliance documentation - including REACH and conflict minerals statements - is available through Texas Instruments' official product folder for LMV339IPWR.