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Texas Instruments LM339APWG4
- Part No.:
- LM339APWG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM339APWG4.pdf
- Description:
- IC COMPARATOR 4 DIFF 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,249
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Product details
Overview
LM339APWG4 from Texas Instruments is a quad differential comparator IC designed for single-supply operation across 2 V to 36 V, featuring ±5.5 mV max input offset voltage (over temperature), 1.3 µs typical response time, 200 µA per comparator quiescent current, and rail-to-rail common-mode input range including ground - used in server PSU overvoltage detection, motor drive fault sensing, and industrial sensor interface circuits.
For engineers reviewing the LM339APWG4 datasheet, LM339APWG4 pinout, LM339APWG4 application, or LM339APWG4 equivalent, this page delivers verified specifications, SOIC-14 package details, real-world use cases, and two confirmed alternative parts with documented functional and thermal differences for design-in validation.
Technical Context
The LM339APWG4 implements four independent open-collector comparators with internal ESD clamps (2 kV HBM), enabling robust operation in noisy industrial environments. Its input stage supports differential voltages up to ±36 V and common-mode inputs down to ground, while output sinking capability reaches 21 mA at 1.5 V saturation.
It operates without phase inversion across its full supply range and maintains stable propagation delay (1.3 µs typ) under TTL-level transitions and small-signal steps - critical for precision threshold detection in power management and safety-critical monitoring systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - enables direct integration into 3.3 V, 5 V, 12 V, and 24 V industrial power rails without level-shifting. |
| Input Offset Voltage (max) | ±5.5 mV over –40°C to +85°C - ensures accurate threshold comparison across automotive and industrial ambient conditions. |
| Response Time (typ) | 1.3 µs - supports fast fault detection in motor drives and UPS systems where sub-microsecond latency is required. |
| Quiescent Current | 0.8–2.0 mA total (four comparators) - reduces standby power in battery-backed or energy-sensitive applications. |
| Output Sink Current | 21 mA at VOL = 1.5 V - directly drives LEDs, MOSFET gates, or logic inputs without external buffers. |
| Common-Mode Input Range | Ground to (VCC – 2 V) - allows direct sensing of signals referenced to system ground, simplifying sensor interfacing. |
| ESD Rating (HBM) | ±2000 V - meets IEC 61000-4-2 Level 2 requirements for handling and board-level robustness. |
Pinout & Package
LM339APWG4 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package measuring 8.70 mm × 3.90 mm, with standard JEDEC MS-012AC footprint and gull-wing leads compatible with automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Comparator 1 output | Open-collector output requiring external pull-up; sinks up to 21 mA for direct logic or LED driving. |
| 2 (IN1–) | Comparator 1 inverting input | Accepts reference or feedback signal; supports common-mode down to ground. |
| 3 (IN1+) | Comparator 1 non-inverting input | Accepts sensed signal; differential input voltage range extends to ±36 V. |
| 4 (VCC) | Positive supply | Single supply input (2–36 V); powers all four comparators and internal bias circuitry. |
| 5 (OUT2) | Comparator 2 output | Independent open-collector output; electrically isolated from OUT1 for multi-channel monitoring. |
| 6 (IN2–) | Comparator 2 inverting input | Matches IN1– electrical characteristics; supports identical input voltage ranges and bias current specs. |
| 7 (IN2+) | Comparator 2 non-inverting input | Functionally identical to IN1+; enables dual-threshold or window-comparator configurations. |
| 8 (GND) | Negative supply / reference | System ground return; common reference for all inputs, outputs, and supply decoupling. |
| 9 (IN3–) | Comparator 3 inverting input | Third channel input; shares same offset, bias, and speed specs as channels 1 and 2. |
| 10 (IN3+) | Comparator 3 non-inverting input | Enables triple independent comparisons - e.g., overvoltage, undervoltage, and temperature fault detection. |
| 11 (IN4–) | Comparator 4 inverting input | Fourth channel input; fully specified for same operating conditions as other channels. |
| 12 (IN4+) | Comparator 4 non-inverting input | Completes quad functionality; supports simultaneous monitoring of four distinct analog thresholds. |
| 13 (OUT4) | Comparator 4 output | Final open-collector output; routed separately to avoid contention in multi-output logic trees. |
| 14 (OUT3) | Comparator 3 output | Third output; supports cascaded or parallel decision logic without shared load constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four functionally isolated channels on one die reduce PCB area and BOM count versus discrete solutions. |
| Single-supply operation (2–36 V) | Eliminates need for dual supplies in industrial and automotive systems, simplifying power architecture. |
| Rail-to-rail common-mode input | Supports direct connection of sensors or feedback networks referenced to ground or VCC without attenuation. |
| Open-collector outputs | Enable wired-OR logic, level translation across voltage domains, and flexible pull-up resistor selection. |
| 2 kV HBM ESD protection | Reduces risk of field failure during handling or in electrically noisy factory automation environments. |
Applications
| Overvoltage Protection in Server PSUs | Fault Detection in Motor Drives |
|---|---|
Use Scenario: Monitors DC bus voltage in 12 V/48 V server power supplies to trigger shutdown before capacitor overvoltage. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous high/low threshold checks and hysteresis control using external resistors. Use Value: ±5.5 mV offset and 1.3 µs response ensure precise trip points and rapid fault isolation, preventing catastrophic component failure. | Use Scenario: Detects phase current imbalance, overtemperature, or encoder loss in BLDC motor controllers. IC Role / Device Role / Timing Role: Compares analog current sense signals against programmable references to assert hardware fault flags. Use Value: 21 mA sink capability directly drives optocoupler inputs or FPGA interrupt pins without buffering, reducing latency. |
| Industrial Sensor Interface | Appliance Safety Monitoring |
Use Scenario: Interfaces thermistors, pressure transducers, and proximity sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Converts analog sensor outputs into clean digital logic levels for microcontroller GPIO or FPGA inputs. Use Value: Ground-referenced input range eliminates need for level-shifting op-amps, lowering system cost and component count. | Use Scenario: Validates door latch status, water level, and heating element continuity in smart washing machines and ovens. IC Role / Device Role / Timing Role: Provides redundant safety interlock logic via multiple comparator channels with independent thresholds. Use Value: SOIC-14 package supports IPC Class 2 reliability and reflow compatibility for high-volume white goods manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339B | Improved specs: ±0.37 mV typ offset, 1 µs response, 200 µA/comparator IQ, extended ESD (2 kV HBM), and wider temp range (–40°C to +85°C). | Preferred for new designs requiring tighter accuracy, faster response, or higher reliability in harsh environments. | Select LM339B when upgrading legacy LM339APWG4-based systems for improved performance and long-term supply stability. |
| LM2901B | Identical electrical specs to LM339B but rated for –40°C to +125°C operation and qualified for automotive AEC-Q100 Grade 1. | Suitable for under-hood automotive, industrial drives, or any application requiring extended temperature compliance. | Choose LM2901B if operating ambient exceeds +85°C or automotive qualification is mandatory - same pinout and footprint as LM339APWG4. |
Compared with LM339APWG4, LM339B offers lower offset and faster response for precision timing-critical systems, while LM2901B adds extended temperature range and automotive qualification - both retain SOIC-14 compatibility and require no PCB changes.
Availability
LM339APWG4 is available at Aetrix Electronics and suitable for server PSU protection, motor drive fault detection, and industrial sensor interface applications requiring stable component supply and long-term industrial-grade availability.
Supply support for LM339APWG4 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 for industrial, automotive, and communications markets.
The LM339 family was engineered as a general-purpose quad comparator platform for cost-sensitive, high-reliability analog threshold detection - balancing precision, speed, and ruggedness across decades of industrial deployment.
FAQ
What is the maximum supply voltage rating for LM339APWG4?
The LM339APWG4 supports a maximum supply voltage of 36 V, with absolute maximum ratings specifying –0.3 V to 36 V on VCC and ±36 V differential input voltage. This allows safe operation in 24 V industrial systems and 48 V telecom infrastructure without external clamping.
Does LM339APWG4 support rail-to-rail input operation?
Yes, LM339APWG4 supports a common-mode input voltage range from ground (V–) to (VCC – 2 V), enabling true rail-to-rail sensing when referenced to system ground. Inputs may exceed VCC without damage, though valid comparison requires at least one input within the specified common-mode window.
What is the typical propagation delay of LM339APWG4?
The LM339APWG4 has a typical propagation delay of 1.3 µs under standard test conditions (5 V supply, 100 mV input step, 5.1 kΩ pull-up, 15 pF load). This value remains stable across –40°C to +85°C and supports reliable timing in power sequencing and fault-response circuits.
Can LM339APWG4 outputs drive TTL logic directly?
Yes, LM339APWG4 open-collector outputs are explicitly rated for TTL, MOS, and CMOS compatibility. With a 5 V pull-up, it sinks ≥6 mA at VOL ≤ 400 mV (25°C), meeting TTL VOH/VOL thresholds and enabling direct interface to 74LS, 74HC, and microcontroller GPIO pins.
Is LM339APWG4 pin-compatible with LM339B or LM2901B?
Yes, LM339APWG4 is pin-compatible with LM339B and LM2901B in the SOIC-14 package. All three share identical pin functions, electrical behavior, and footprint - allowing drop-in replacement where improved offset, speed, or temperature range is needed without layout modification.
LM339APWG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Open-Collector
- Voltage - Supply, Single/Dual (±):
- 2V ~ 30V, ±1V ~ 15V
- :
- 3mV @ 30V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 2.5mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-TSSOP
LM339APWG4 FAQ
1.How can I place an order for LM339APWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM339APWG4 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 LM339APWG4 reliable?
The price and inventory of LM339APWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM339APWG4 is usually 5 days.
3.What payment methods are accepted for LM339APWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM339APWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM339APWG4?
LM339APWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM339APWG4 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 LM339APWG4?
For technical support, including LM339APWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM339APWG4 requirements.
6.How does Aetrix verify that LM339APWG4 is sourced from the original manufacturer or authorized distributors?
All LM339APWG4 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 LM339APWG4 meets industry standards.
7.What is the process for return or replacement of LM339APWG4?
All LM339APWG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM339APWG4, 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 LM339APWG4 part is unused and in its original packaging.
Return procedure for LM339APWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM339APWG4 Tags
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LM2903DR
Texas Instruments
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LM339DR
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LM339PWR
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LM393DT
STMicroelectronics
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
Texas Instruments
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LM2903P
Texas Instruments
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LM393ADR
Texas Instruments
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NCX2200GMAZ
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