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Texas Instruments LM339LVQPWRQ1
- Part No.:
- LM339LVQPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM339LVQPWRQ1.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,304
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Product details
Overview
LM339LVQPWRQ1 from Texas Instruments is a quad automotive-grade rail-to-rail input voltage comparator with open-drain outputs, 1.65 V to 5.5 V supply range, 400 µV typical input offset voltage, 600 ns typical propagation delay, and –40°C to +125°C operating temperature-used in motor drive overcurrent detection and server PSU voltage monitoring.
For engineers reviewing the LM339LVQPWRQ1 datasheet, LM339LVQPWRQ1 pinout, LM339LVQPWRQ1 application, or LM339LVQPWRQ1 equivalent, this page delivers verified electrical specs, AEC-Q100 Grade 1 qualification details, SOIC-14 package mapping, and direct comparator alternatives for low-voltage (≤5 V) automotive and industrial sensing systems.
Technical Context
The LM339LVQPWRQ1 implements four independent comparators with rail-to-rail input stages capable of accepting common-mode voltages up to 6 V without damage or phase inversion. Each channel features Power-On-Reset (POR) logic that forces output into high-impedance state until supply reaches minimum operating voltage, eliminating power-up transients.
Its open-drain outputs support flexible pull-up configurations across multiple voltage domains, while ultra-low 25 µA/channel quiescent current and 5 pA typical input bias current enable precision sensing in battery-sensitive applications such as cordless power tools and infotainment systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - supports direct integration into 1.8 V, 3.3 V, and 5 V automotive subsystems without level-shifting. |
| Input Offset Voltage | ±0.4 mV typical - enables accurate threshold detection in low-differential-signal applications like battery cell monitoring. |
| Propagation Delay | 600 ns typical - ensures timely response in fast-cycling protection circuits such as motor phase fault detection. |
| Quiescent Current | 25 µA per channel - reduces standby power in always-on vehicle modules including body control units. |
| Input Bias Current | 5 pA typical - minimizes loading error on high-impedance sensor sources like thermistors and RTDs. |
| Operating Temperature | –40°C to +125°C ambient - meets AEC-Q100 Grade 1 requirements for under-hood and powertrain electronics. |
| ESD Rating | HBM ±2 kV, CDM ±1 kV - provides robustness against assembly and field electrostatic events in manufacturing environments. |
Pinout & Package
LM339LVQPWRQ1 is packaged in a 14-pin SOIC (D) with body size 3.91 mm × 8.65 mm, optimized for automated optical inspection and thermal dissipation in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT2 (Pin 1) | Comparator 2 output | Open-drain output requiring external pull-up; sinks up to 100 mA short-circuit current at 5 V. |
| OUT1 (Pin 2) | Comparator 1 output | Independent open-drain output; compatible with mixed-voltage logic interfaces via configurable pull-up. |
| V+ (Pin 3) | Positive supply | Single-supply input supporting 1.65–5.5 V; powers all four comparators and internal POR circuitry. |
| IN1– (Pin 4) | Inverting input, Ch1 | Rail-to-rail capable: accepts voltages from GND to V+ + 0.1 V without damage or inversion. |
| IN1+ (Pin 5) | Noninverting input, Ch1 | Paired with Pin 4 for differential threshold comparison; matched input capacitance (2 pF diff, 3 pF common-mode). |
| IN2– (Pin 6) | Inverting input, Ch2 | Electrically identical to Pin 4; supports independent reference comparison for dual-sensor monitoring. |
| IN2+ (Pin 7) | Noninverting input, Ch2 | Paired with Pin 6; enables simultaneous evaluation of two analog signals against separate thresholds. |
| GND (Pin 12) | Negative supply | Common return path for all channels; connects to exposed thermal pad in WQFN variants (not applicable to SOIC). |
| OUT4 (Pin 13) | Comparator 4 output | Final open-drain output; routed to system fault latch or microcontroller interrupt line in safety-critical designs. |
| OUT3 (Pin 14) | Comparator 3 output | Provides fourth independent decision node; used for redundant monitoring or multi-level trip detection. |
Key Features
| Feature | Design Value |
|---|---|
| Power-On-Reset (POR) | Guarantees high-impedance output state during power ramp-up/down, preventing false triggering in server PSU sequencing. |
| Rail-to-Rail Input with Failsafe | Accepts inputs beyond supply rails (up to 6 V) without latch-up or phase reversal-critical for noisy automotive sensor interfaces. |
| AEC-Q100 Qualified Grade 1 | Validated for –40°C to +125°C ambient operation, HBM ±2 kV, CDM ±1 kV-enables use in engine control and ADAS modules. |
| Low Input Offset Drift | ±1.5 µV/°C - maintains threshold accuracy across wide temperature swings in factory automation sensors. |
| Improved Replacement for LM339-Q1 | Drop-in compatible in ≤5 V systems with lower offset, faster response, and enhanced ESD robustness versus legacy parts. |
Applications
| Motor Drive Protection | Server PSU Monitoring |
|---|---|
Use Scenario: Real-time overcurrent detection in three-phase BLDC motor inverters using shunt voltage feedback. IC Role / Device Role / Timing Role: Quad comparator compares sensed phase currents against programmable thresholds with sub-microsecond latency. Use Value: Enables immediate gate shutdown via OUTx-driven fault latches, meeting IEC 61800-5-2 functional safety timing constraints. | Use Scenario: Simultaneous monitoring of +12 V, +5 V, +3.3 V, and +1.8 V rails in modular server power supplies. IC Role / Device Role / Timing Role: Four independent channels provide dedicated undervoltage/overvoltage flags for each rail. Use Value: Reduces BOM count by replacing four single comparators; open-drain outputs interface directly with PMBus alert lines. |
| Infotainment System Power Sequencing | Cordless Power Tool Battery Management |
Use Scenario: Controlled startup sequence for display, audio processor, and connectivity ICs in automotive head units. IC Role / Device Role / Timing Role: Comparator outputs trigger enable signals for LDOs and DC/DC converters in defined order. Use Value: POR feature prevents spurious resets during cold-cranking; rail-to-rail inputs tolerate varying reference voltages. | Use Scenario: Cell voltage balancing and pack-level overvoltage cutoff in 18 V Li-ion battery packs. IC Role / Device Role / Timing Role: Monitors individual cell voltages against 4.25 V threshold and triggers MOSFET disconnect. Use Value: 5 pA input bias avoids measurement error on high-resistance voltage dividers; 25 µA/channel extends runtime in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339QDRQ1 | Legacy quad comparator; wider 2–36 V supply range but higher 1.5 mV offset, 1.3 µs delay, and no POR. | Suitable for higher-voltage industrial controls but lacks low-voltage optimization and failsafe startup behavior. | Select LM339LVQPWRQ1 when designing ≤5 V automotive systems requiring precise thresholds and glitch-free power sequencing. |
| TL339IPW | Industrial-grade quad comparator; 2–36 V supply, 7 mV offset, no AEC-Q100 qualification, no POR, SOIC-14 pinout. | Applicable in non-automotive embedded systems where cost is prioritized over temperature grade and ESD robustness. | Choose LM339LVQPWRQ1 for AEC-Q100-compliant designs needing guaranteed startup behavior and sub-millivolt accuracy at 1.8 V. |
Compared with LM339QDRQ1 and TL339IPW, LM339LVQPWRQ1 delivers tighter offset, faster response, built-in POR, and full automotive qualification-making it the optimal choice for next-generation low-voltage safety-critical sensing.
Availability
LM339LVQPWRQ1 is available at Aetrix Electronics and suitable for motor drives, server PSUs, and infotainment systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.
Supply support for LM339LVQPWRQ1 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, embedded processing, and connectivity solutions for automotive, industrial, and personal electronics markets.
LM339LVQPWRQ1 belongs to TI's LV-Q1 automotive comparator family, engineered specifically for low-voltage (≤5 V), high-reliability sensing in engine control, battery management, and ADAS subsystems.
FAQ
What is the supply voltage range supported by the LM339LVQPWRQ1?
The LM339LVQPWRQ1 operates from 1.65 V to 5.5 V, enabling direct compatibility with modern low-voltage automotive domains including 1.8 V microcontrollers and 3.3 V sensor interfaces. This range is strictly validated per AEC-Q100 recommended operating conditions and excludes extended absolute maximum ratings.
Does the LM339LVQPWRQ1 include Power-On-Reset functionality?
Yes, the LM339LVQPWRQ1 integrates a dedicated Power-On-Reset circuit that holds all four outputs in high-impedance state until the supply voltage exceeds the minimum operating threshold. This prevents erroneous switching during power ramp-up and is confirmed in Section 6.3 of the official datasheet.
Is the LM339LVQPWRQ1 pin-compatible with the standard LM339-Q1?
No, the LM339LVQPWRQ1 uses the same SOIC-14 pinout as the LM339-Q1 family, but its internal POR and rail-to-rail input architecture require verification of signal timing and pull-up configuration. It is an improved functional replacement-not a drop-in mechanical substitute-per TI's documentation.
What is the typical input offset voltage of the LM339LVQPWRQ1 and how does it vary with temperature?
The LM339LVQPWRQ1 has a typical input offset voltage of ±0.4 mV at 25°C, with a maximum of ±3 mV across –40°C to +125°C. Its drift is specified at ±1.5 µV/°C, ensuring stable threshold accuracy in under-hood applications where ambient temperature fluctuates widely.
Can the LM339LVQPWRQ1 inputs safely accept voltages beyond the supply rails?
Yes, the LM339LVQPWRQ1 rail-to-rail inputs tolerate common-mode voltages from –0.1 V to (V+) + 0.1 V, and transient inputs up to 6 V without damage or phase inversion. This capability is explicitly documented in Section 5.3 (Recommended Operating Conditions) and Figure 5-19 through 5-24 of the datasheet.
LM339LVQPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 1.65V ~ 5.5V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 100mA @ 5V
- Current - Output (Typ):
- 35µA
- Current - Quiescent (Max):
- 65dB, 80dB PSRR
- CMRR, PSRR (Typ):
- 600ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- 14-TSSOP
LM339LVQPWRQ1 FAQ
1.How can I place an order for LM339LVQPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM339LVQPWRQ1 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 LM339LVQPWRQ1 reliable?
The price and inventory of LM339LVQPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM339LVQPWRQ1 is usually 5 days.
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Once your LM339LVQPWRQ1 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 LM339LVQPWRQ1?
For technical support, including LM339LVQPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM339LVQPWRQ1 requirements.
6.How does Aetrix verify that LM339LVQPWRQ1 is sourced from the original manufacturer or authorized distributors?
All LM339LVQPWRQ1 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 LM339LVQPWRQ1 meets industry standards.
7.What is the process for return or replacement of LM339LVQPWRQ1?
All LM339LVQPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM339LVQPWRQ1, 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 LM339LVQPWRQ1 part is unused and in its original packaging.
Return procedure for LM339LVQPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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