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Texas Instruments LMV339IRUCR
- Part No.:
- LMV339IRUCR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-XFQFN
- Datasheet:
-
LMV339IRUCR.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,239
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Product details
Overview
LMV339IRUCR from Texas Instruments is a quad general-purpose low-voltage comparator IC with open-collector outputs, operating from 2.7V to 5.5V supply, delivering 100μA typical supply current, 150mV typical output saturation voltage, and input common-mode range extending to ground - used in server PSU monitoring, vacuum robot control logic, and building automation sensor interfaces.
For engineers reviewing the LMV339IRUCR datasheet, LMV339IRUCR pinout, LMV339IRUCR application, or LMV339IRUCR equivalent, this page delivers verified electrical specs, RUC-package terminal mapping, real-world use cases, and validated alternative comparators for low-power, space-constrained designs requiring rail-to-ground input operation and flexible level-shifting capability.
Technical Context
The LMV339IRUCR implements four independent PNP-input comparators with open-drain NPN output stages, enabling direct interface to multiple logic families via external pull-up resistors. Its input stage supports common-mode voltages from –0.1V to VCC–0.7V, allowing accurate sensing at ground-referenced thresholds.
Each comparator exhibits 7mV typical input offset voltage (25°C), 5μV/°C average temperature coefficient, and propagation delays of 600ns (tPHL) / 450ns (tPLH) at 5V supply with 100mV overdrive - optimized for fast response in battery-powered and industrial control feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - enables direct operation from single-cell Li-ion (3.0V), 3.3V logic rails, and 5V legacy systems without regulation. |
| Supply Current (Typ) | 100μA - allows continuous monitoring in always-on subsystems with sub-1mW quiescent power budget per comparator channel. |
| Input Offset Voltage | 7mV max at 25°C - ensures reliable detection of small differential signals (e.g., thermistor or current-sense amplifier outputs) without trimming. |
| Output Saturation Voltage | 150mV @ 1.5mA sink - guarantees logic-low compatibility with 1.8V, 2.5V, and 3.3V CMOS inputs when using standard pull-up resistors. |
| Common-Mode Input Range | –0.1V to 4.2V @ 5V supply - supports ground-referenced inputs and high-side sensing up to VCC–0.8V, critical for battery voltage monitoring. |
| Propagation Delay | 600ns (high→low), 450ns (low→high) @ 5V, 100mV overdrive - meets timing requirements for motor stall detection and overvoltage latch circuits. |
| ESD Rating (HBM) | ±2000V - provides robustness against handling and board-level ESD events in factory automation environments. |
Pinout & Package
The LMV339IRUCR is housed in a 14-pin X2QFN package (2.00mm × 2.00mm, 0.5mm pitch) with wettable flanks and thermal pad - designed for high-density PCB layouts and automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 7, 12 | Comparator Output (OUT1–OUT4) | Open-drain NPN collector - requires external pull-up to define logic-high level; supports wired-AND and mixed-voltage interfacing. |
| 3, 5, 7, 9 | Inverting Input (IN1– to IN4–) | PNP-base input node - accepts signals down to –0.1V, enabling precise zero-crossing detection and ground-referenced thresholding. |
| 4, 6, 8, 10 | Non-inverting Input (IN1+ to IN4+) | PNP-emitter input node - matches IN– characteristics for symmetrical hysteresis design and differential reference applications. |
| 2 | Ground (GND) | Primary return path for all comparator channels and internal bias circuitry - must be low-impedance connection to system ground plane. |
| 11 | Supply (VCC+) | Single positive supply input - bypass capacitor (0.1μF) required between Pin 11 and Pin 2 for stable operation under dynamic load conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels in one 2mm × 2mm QFN - eliminates inter-channel crosstalk and reduces component count in multi-threshold systems. |
| Ground-sensing input stage | Input common-mode range includes 0V - enables direct interface to current-sense resistors, thermistors, and other ground-referenced sensors without level-shifting circuitry. |
| Low-voltage operation | Functional down to 2.7V supply - supports direct integration into 3.3V microcontroller-based systems and single-cell battery-powered devices. |
| Open-collector outputs | Configurable logic-high level via external pull-up - permits seamless interfacing with 1.8V, 2.5V, 3.3V, and 5V logic families and enables wired-AND bus architectures. |
| Thermal performance | RθJA = 216°C/W (RUC package) - sustains full 4-channel operation at 125°C ambient when mounted on 2-layer PCB with thermal pad soldered to copper pour. |
Applications
| Vacuum Robot Motor Control | Server PSU Overvoltage Protection |
|---|---|
Use Scenario: Monitoring motor phase currents and encoder zero-crossings in compact robotic vacuum cleaners with tight thermal and space constraints. IC Role / Device Role / Timing Role: Quad comparator detects current-limit thresholds and commutation timing edges, triggering MCU interrupts or gate-driver disable signals. Use Value: 100μA total supply current extends battery runtime; ground-sensing inputs eliminate need for high-side current-sense amplifiers. | Use Scenario: Real-time monitoring of +12V, +5V, +3.3V, and +1.8V rails in redundant server power supplies to trigger immediate shutdown on overvoltage faults. IC Role / Device Role / Timing Role: Four independent comparators compare each rail against precision references, driving OR-tied fault lines to the PMBus controller. Use Value: Open-collector outputs allow rail-specific pull-ups to match each monitored voltage domain; 600ns propagation delay ensures sub-microsecond fault response. |
| Smart Appliance Temperature Sensing | Factory Automation Sensor Interface |
Use Scenario: Interfacing NTC thermistors across oven cavity, heating element, and exhaust duct in connected kitchen appliances. IC Role / Device Role / Timing Role: Comparator channels convert analog thermistor voltages into digital thresholds for overtemperature, safe-start, and cooling-fan enable signals. Use Value: Input common-mode range including ground allows direct thermistor-to-GND configuration; 2mm × 2mm RUC package fits within narrow control board margins. | Use Scenario: Converting analog 4–20mA process signals and proximity switch outputs into clean digital logic levels for PLC I/O modules. IC Role / Device Role / Timing Role: LMV339IRUCR acts as signal conditioner and level translator between field sensors and 3.3V FPGA-based logic controllers. Use Value: 2.7V–5.5V operation accommodates wide-range industrial supplies; ±2000V HBM ESD rating withstands harsh factory EMI environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Wider supply range (2V–36V), higher ICC (500μA typ), SOIC-14 package (8.65mm × 3.91mm) | Supports high-voltage industrial sensors but consumes 5× more quiescent current and occupies >10× board area | Select LM339DR only when >5.5V supply or legacy SOIC footprint is mandatory; not suitable for battery or space-constrained designs. |
| TLV339IPWR | Lower ICC (55μA typ), same RUC package, but reduced VICR (0V to VCC–1.2V) and no guaranteed operation below 1.8V | Optimized for ultra-low-power wearables but cannot sense ground-referenced signals reliably | Choose TLV339IPWR where minimum current dominates and ground-sensing is unnecessary; LMV339IRUCR remains superior for sensor front-ends requiring true 0V input capability. |
Compared with LM339DR and TLV339IPWR, the LMV339IRUCR uniquely balances ultra-small footprint (2mm²), ground-sensing input, and 100μA supply current - making it the optimal choice for portable, industrial, and appliance designs demanding both precision and density.
Availability
LMV339IRUCR is available at Aetrix Electronics and suitable for server PSU protection, vacuum robot motor control, and smart appliance temperature monitoring requiring stable component supply across automotive-grade temperature ranges (–40°C to +125°C) and long production lifecycles.
Supply support for LMV339IRUCR 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 LMV339IRUCR belongs to TI's general-purpose low-voltage comparator family, engineered specifically for cost-sensitive, space-constrained applications in portable consumer electronics, industrial controls, and energy-efficient power systems.
FAQ
What is the maximum supply voltage for LMV339IRUCR?
The absolute maximum supply voltage for LMV339IRUCR is 5.5V, with recommended operation from 2.7V to 5.5V. Exceeding 5.5V risks permanent damage per the Absolute Maximum Ratings table. At 5V supply, the device delivers 100μA typical supply current and 600ns propagation delay - confirming robust performance within its specified range. LMV339IRUCR must never be operated above 5.5V, even transiently.
Does LMV339IRUCR support ground-referenced input signals?
Yes, LMV339IRUCR supports ground-referenced input signals: its input common-mode voltage range extends to –0.1V at 25°C and 0V across the full –40°C to +125°C operating range. This enables direct connection of sensors like NTC thermistors or current-sense resistors to ground without level-shifting circuitry. The PNP-input architecture achieves this capability while maintaining 7mV typical input offset voltage - a key differentiator versus alternatives lacking true ground-sensing.
What package type is used for LMV339IRUCR?
LMV339IRUCR uses the X2QFN-14 (RUC) package: a 2.00mm × 2.00mm, 0.5mm-pitch, 14-terminal leadless package with wettable flanks and an exposed thermal pad. This package delivers 216°C/W junction-to-ambient thermal resistance and is compatible with standard reflow profiles (MSL Level-1). Its compact size reduces PCB area by >85% versus SOIC-14, making LMV339IRUCR ideal for ultra-dense layouts in portable and industrial equipment.
Can LMV339IRUCR outputs drive 1.8V logic directly?
Yes, LMV339IRUCR outputs can drive 1.8V logic directly when configured with an appropriate external pull-up resistor to 1.8V. As an open-collector device, its output sinks current to ground and relies on the pull-up to define the logic-high level. With 1.5mA sink current, the output saturation voltage remains ≤150mV - ensuring VOL < 10% of 1.8V, satisfying standard CMOS input low-level requirements. No level-shifter IC is needed when using LMV339IRUCR in mixed-voltage systems.
What is the typical supply current of LMV339IRUCR at 2.7V?
The typical supply current of LMV339IRUCR at 2.7V is 100μA, as confirmed in Section 5.5 Electrical Characteristics (VCC+ = 2.7V) of the official datasheet. This value represents total current for all four comparators operating simultaneously. At 25°C, the maximum is 200μA; over temperature (–40°C to +125°C), it rises to 350μA at 5V but remains well below 200μA at 2.7V. This ultra-low ICC makes LMV339IRUCR suitable for always-on monitoring in battery-powered applications.
LMV339IRUCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-XFQFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 84mA @ 5V
- Current - Output (Typ):
- 350µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 600ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-QFN (2x2)
LMV339IRUCR FAQ
1.How can I place an order for LMV339IRUCR through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV339IRUCR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMV339IRUCR reliable?
The price and inventory of LMV339IRUCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV339IRUCR is usually 5 days.
3.What payment methods are accepted for LMV339IRUCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV339IRUCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV339IRUCR?
LMV339IRUCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV339IRUCR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMV339IRUCR?
For technical support, including LMV339IRUCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV339IRUCR requirements.
6.How does Aetrix verify that LMV339IRUCR is sourced from the original manufacturer or authorized distributors?
All LMV339IRUCR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMV339IRUCR meets industry standards.
7.What is the process for return or replacement of LMV339IRUCR?
All LMV339IRUCR units undergo pre-shipment inspection (PSI). If there is an issue with LMV339IRUCR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMV339IRUCR part is unused and in its original packaging.
Return procedure for LMV339IRUCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV339IRUCR Tags
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