Texas Instruments LMV393IDDUR

Overview

LMV393IDDUR from Texas Instruments is a dual low-voltage open-collector comparator operating from 2.7V to 5.5V, featuring 50μA typical supply current, 150mV typical output saturation voltage, and input common-mode range extending to ground. It serves as a precision voltage comparison element in power management and level-shifting circuits for portable industrial and consumer systems.

For engineers reviewing the LMV393IDDUR datasheet, LMV393IDDUR pinout, LMV393IDDUR application, or LMV393IDDUR equivalent, key selection criteria include its dual-channel open-drain architecture, rail-to-ground input capability, low quiescent current across temperature, propagation delay under 600ns at 5V, and compatibility with 1.8V–5V logic interfaces via external pull-up.

Technical Context

The LMV393IDDUR implements a PNP-input stage enabling input common-mode operation down to ground (VICR = –0.1V to VCC–0.7V), supporting single-supply sensing in battery-powered systems. Its open-collector NPN output stage sinks up to 23mA at 2.7V and 84mA at 5V, allowing flexible logic-level translation and wired-AND configurations.

Propagation delay varies with supply voltage and overdrive: at VCC = 5V and 100mV overdrive, tPHL is 200ns and tPLH is 300ns; at VCC = 2.7V and same overdrive, tPHL is 350ns and tPLH is 400ns. Input offset voltage remains ≤7mV (typ) across –40°C to 125°C.

Key Specifications

Pinout & Package

VSSOP-8 (DDU) package: 3.00mm × 4.40mm body, 0.65mm pitch, exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LMV393IDDUR, LMV393IDGKR offers identical functionality in a functionally equivalent package with Sn finish, while TLV393DR provides lower power and wider supply range but requires validation for VIO-critical thresholds and layout adjustments for ESD robustness.

Availability

LMV393IDDUR is available at Aetrix Electronics and suitable for power supply monitoring, motor control feedback, portable appliance safety, and building automation sensors requiring stable component supply across industrial temperature ranges and long-lifecycle programs.

Supply support for LMV393IDDUR 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog ICs and broad industrial portfolio coverage.

The LMV393 series belongs to TI's general-purpose low-voltage comparator product line, designed specifically for cost-sensitive, space-constrained applications where ground-sensing capability, low quiescent current, and open-drain flexibility are critical - especially in portable and battery-operated systems.

FAQ

What is the operating temperature range for LMV393IDDUR?

The LMV393IDDUR is specified to operate from –40°C to +125°C ambient temperature. This wide industrial temperature range is validated across all key parameters including supply current, input offset voltage, and propagation delay, making LMV393IDDUR suitable for under-hood automotive modules, factory automation controllers, and outdoor-rated equipment where thermal extremes occur.

Does LMV393IDDUR support rail-to-rail input operation?

No, LMV393IDDUR does not support rail-to-rail input. Its input common-mode voltage range extends from –0.1V to VCC–0.7V, meaning it operates down to ground but cannot accept signals at or above VCC. This limitation arises from its PNP input stage; however, the ground-sensing capability is sufficient for most single-supply applications like battery monitoring and sensor interfacing.

Can LMV393IDDUR drive a 5V logic input directly?

Yes, LMV393IDDUR can drive a 5V logic input when used with an external pull-up resistor connected to the 5V rail. Because LMV393IDDUR features open-collector outputs, the output voltage level is determined solely by the pull-up voltage - not the comparator's supply. So even if LMV393IDDUR operates at 3.3V, its OUT pins can safely interface with 5V-tolerant inputs when pulled up to 5V.

What is the maximum sink current capability of LMV393IDDUR at 2.7V supply?

At VCC = 2.7V and TA = 25°C, LMV393IDDUR guarantees a minimum sink current of 5mA with VO ≤ 1.5V, and typically delivers 23mA. This value decreases slightly at temperature extremes - e.g., 15mA minimum over –40°C to 125°C - but remains sufficient to drive standard LED indicators, MOSFET gate resistors, or logic inputs with appropriate pull-up sizing.

Is LMV393IDDUR pin-compatible with LM393?

No, LMV393IDDUR is not pin-compatible with LM393. While both are dual comparators with open-collector outputs, LM393 uses an SOIC-8 package with different pin assignments (e.g., GND on pin 4, VCC on pin 8), whereas LMV393IDDUR in VSSOP-8 places GND on pin 4 and VCC on pin 5. Additionally, LM393 operates from 2V to 36V, while LMV393IDDUR is optimized for 2.7V–5.5V - requiring PCB redesign for substitution.