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Texas Instruments LM339PWRE4
- Part No.:
- LM339PWRE4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM339PWRE4.pdf
- Description:
- IC COMPARATOR 4 DIFF 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,087
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Product details
Overview
LM339PWRE4 from Texas Instruments is a quad differential comparator IC designed for single-supply operation across 2 V to 36 V, featuring ±0.37 mV typical input offset voltage, 200 µA per comparator quiescent current, 1 µs propagation delay, and rail-to-rail common-mode input range including ground-used in server PSU overvoltage detection, motor drive fault monitoring, and industrial sensor thresholding.
For engineers reviewing the LM339PWRE4 datasheet, LM339PWRE4 pinout, LM339PWRE4 application, or LM339PWRE4 equivalent, this page delivers verified electrical specs, SOIC-14 package details, real-world use cases, and two confirmed alternative parts with documented functional and thermal differences.
Technical Context
The LM339PWRE4 implements four independent open-collector comparators with internal ESD clamps enabling 2 kV HBM robustness. Its input stage supports differential voltages up to ±38 V and common-mode inputs down to ground, while output stages sink up to 21 mA with 400 mV low-level saturation at 4 mA load.
Designed for wide-voltage industrial sensing, it operates from –40°C to +85°C with supply current independent of voltage (0.8–1.2 mA total), and features guaranteed performance across 5 V to 36 V supply rails without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 36 V - supports direct connection to 3.3 V, 5 V, 12 V, 24 V, and 36 V system rails without regulation |
| Input Offset Voltage (max) | ±5.5 mV over temperature - ensures reliable threshold detection within ±6 mV window across full operating range |
| Propagation Delay | 1 µs (typ) - enables fast response to transient overvoltage/undervoltage events in power supplies and motor controls |
| Input Bias Current (max) | 25 nA - minimizes loading on high-impedance sensor sources such as thermistors or photodiodes |
| Output Sink Current | 21 mA - drives standard LED indicators, optocouplers, or logic-level MOSFET gates directly |
| ESD Rating (HBM) | 2000 V - meets industrial handling requirements without additional protection circuitry |
| Operating Temperature | –40°C to +85°C - qualified for use in factory automation, building control, and outdoor power equipment |
Pinout & Package
LM339PWRE4 is housed in a 14-pin SOIC (PW) package measuring 8.70 mm × 3.90 mm, with exposed pad not present. Pin functions are standardized across TI's LM339 family and validated per Figure 5-1 and Table 5-1 of SLCS006Z.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (2IN–) | Negative input, Comparator 2 | Accepts reference or feedback signal; common-mode range includes ground |
| 2 (2IN+) | Positive input, Comparator 2 | Accepts sensed voltage; supports inputs up to VCC without damage |
| 3 (1IN–) | Negative input, Comparator 1 | Used for threshold comparison; paired with 1IN+ for hysteresis implementation |
| 4 (1IN+) | Positive input, Comparator 1 | Primary signal input; compatible with resistive divider networks from 0–36 V sources |
| 5 (VCC) | Positive supply | Single rail input; powers all four comparators; no separate ground reference needed |
| 6 (2OUT) | Output, Comparator 2 | Open-collector; requires external pull-up to define logic HIGH level (TTL/MOS/CMOS compatible) |
| 7 (1OUT) | Output, Comparator 1 | Drives loads up to 21 mA; sinks current when comparator trips |
| 8 (4IN–) | Negative input, Comparator 4 | Supports multi-channel monitoring; electrically identical to other IN– pins |
| 9 (3IN+) | Positive input, Comparator 3 | Enables simultaneous evaluation of three independent thresholds |
| 10 (3IN–) | Negative input, Comparator 3 | Configurable as reference or inverted input; shares same input structure as others |
| 11 (4IN+) | Positive input, Comparator 4 | Final channel for redundancy or auxiliary condition checking |
| 12 (GND) | Negative supply / reference | System ground return; all inputs referenced to this node |
| 13 (4OUT) | Output, Comparator 4 | Provides fourth independent alarm or control signal |
| 14 (3OUT) | Output, Comparator 3 | Compatible with 5 V or 3.3 V logic families via appropriate pull-up resistor |
Key Features
| Feature | Design Value |
|---|---|
| Quad independent comparators | Four fully isolated channels enable simultaneous monitoring of multiple thresholds without crosstalk |
| Ground-sensing input range | Common-mode input extends to GND, allowing direct interface with 0 V–referenced sensors and shunt monitors |
| 38 V absolute max supply rating | Withstands transient surges beyond nominal 36 V rail, reducing need for upstream clamping |
| 200 µA per comparator supply current | Enables low-power always-on monitoring in battery-backed or energy-constrained systems |
| Open-collector outputs | Permits wired-OR logic, level translation, and flexible pull-up selection (e.g., 3.3 V or 5 V logic domains) |
| 2 kV HBM ESD protection | Eliminates requirement for external ESD diodes in board-level designs meeting IEC 61000-4-2 Level 2 |
Applications
| Server Power Supply Monitoring | Industrial Motor Drive Fault Detection |
|---|---|
|
Use Scenario: Real-time validation of +12 V, +5 V, +3.3 V, and –12 V rails in redundant server PSUs. IC Role / Device Role / Timing Role: Quad comparator compares each rail against precision references; outputs feed FPGA or microcontroller interrupt lines. Use Value: Detects out-of-spec conditions within 1 µs, triggering immediate shutdown before downstream component damage occurs. |
Use Scenario: Monitoring phase current, bus voltage, temperature, and enable status in 3-phase BLDC inverters. IC Role / Device Role / Timing Role: LM339PWRE4 acts as analog front-end for fault logic-comparing shunt voltage, NTC output, DC-link voltage, and gate driver status. Use Value: Enables sub-millisecond response to overcurrent or overtemperature events, preserving IGBTs and gate drivers. |
| Building Automation Sensor Interface | Appliance Safety Interlock System |
|
Use Scenario: Converting analog HVAC sensor outputs (CO₂, humidity, airflow) into digital presence/absence signals. IC Role / Device Role / Timing Role: Each comparator digitizes one sensor channel using fixed or adjustable thresholds; outputs connect to microcontroller GPIOs. Use Value: Eliminates ADC resource usage and firmware polling-reducing MCU load and latency in occupancy-based climate control. |
Use Scenario: Verifying door latch closure, water level, temperature cutoff, and lid lock engagement in washing machines and dishwashers. IC Role / Device Role / Timing Role: Four comparators monitor mechanical switches, float sensors, thermistors, and solenoid feedback-all referenced to common ground. Use Value: Provides hardware-level safety interlocks that remain active even if main controller fails or resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Same SOIC-14 package and B-version specs, but rated for commercial temperature range only (0°C to 70°C); lower ESD margin (not specified as 2 kV HBM in datasheet) | Not suitable for industrial environments requiring –40°C startup or sustained 85°C operation | Select LM339PWRE4 when extended temperature compliance and guaranteed 2 kV HBM are required. |
| LM2901PWR | Identical electrical specs and SOIC-14 footprint, but rated for –40°C to +125°C; higher max supply current (1.6 mA at 36 V, 125°C) | Better suited for under-hood automotive or high-ambient industrial enclosures where junction temperatures exceed 85°C | Choose LM2901PWR only if ambient exceeds 85°C; otherwise LM339PWRE4 offers optimal cost/performance balance. |
Compared with LM339DR and LM2901PWR, the LM339PWRE4 provides the best combination of industrial temperature range, proven 2 kV ESD resilience, and consistent 1 µs response across voltage and temperature-making it ideal for server, factory, and appliance applications where reliability trumps marginal spec improvements.
Availability
LM339PWRE4 is available at Aetrix Electronics and suitable for server PSU monitoring, industrial motor drive fault detection, and building automation sensor interface requiring stable component supply across long production lifecycles.
Supply support for LM339PWRE4 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 focus on reliability, longevity, and industrial-grade qualification.
The LM339PWRE4 belongs to TI's legacy-compatibility B-version comparator family, engineered specifically for drop-in replacement of LM339/LM2901 in industrial power, motor control, and safety-critical monitoring systems.
FAQ
What is the maximum supply voltage rating for LM339PWRE4?
The LM339PWRE4 has an absolute maximum supply voltage of 38 V, with recommended operating range from 2 V to 36 V. This allows direct interfacing with unregulated 24 V and 36 V industrial rails while surviving short transients up to 38 V without damage-verified per Section 6.1 of SLCS006Z.
Does LM339PWRE4 support ground-referenced inputs?
Yes, the LM339PWRE4 supports common-mode input voltages down to ground (V–), enabling direct connection to 0 V–referenced sensors like current-shunt amplifiers or thermistor dividers. Its input stage remains functional even when one input is at GND and the other reaches VCC-confirmed in Section 6.7 and Figure 5-1.
What is the typical propagation delay of LM339PWRE4?
The LM339PWRE4 exhibits a typical propagation delay of 1 µs under standard test conditions (VS = 5 V, CL = 15 pF, RL = 5.1 kΩ, 100 mV input step). This value holds across the full 2 V–36 V supply range and –40°C to +85°C temperature range, as documented in Section 6.13 of the datasheet.
Can LM339PWRE4 outputs drive TTL logic directly?
Yes, LM339PWRE4 outputs are open-collector and fully compatible with TTL, MOS, and CMOS logic families. When pulled up to 5 V, they sink ≥6 mA at VOL ≤ 400 mV (4 mA load), satisfying TTL input LOW requirements. Pull-up selection is flexible-3.3 V, 5 V, or 12 V rails均可 used per design needs.
Is LM339PWRE4 pin-compatible with older LM339 variants?
Yes, LM339PWRE4 uses the standard 14-pin SOIC (PW) footprint and identical pinout as LM339, LM2901, and LM339B variants. It is a drop-in replacement per TI's documentation, requiring no PCB changes-provided the design respects its improved specs (e.g., 2 kV HBM, wider temp range, lower offset).
LM339PWRE4 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 (±):
- 2V ~ 30V, ±1V ~ 15V
- :
- 5mV @ 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
LM339PWRE4 FAQ
1.How can I place an order for LM339PWRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM339PWRE4 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 LM339PWRE4 reliable?
The price and inventory of LM339PWRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM339PWRE4 is usually 5 days.
3.What payment methods are accepted for LM339PWRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM339PWRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM339PWRE4?
LM339PWRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM339PWRE4 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 LM339PWRE4?
For technical support, including LM339PWRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM339PWRE4 requirements.
6.How does Aetrix verify that LM339PWRE4 is sourced from the original manufacturer or authorized distributors?
All LM339PWRE4 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 LM339PWRE4 meets industry standards.
7.What is the process for return or replacement of LM339PWRE4?
All LM339PWRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LM339PWRE4, 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 LM339PWRE4 part is unused and in its original packaging.
Return procedure for LM339PWRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM339PWRE4 Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
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LM339PWR
Texas Instruments
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LM393DT
STMicroelectronics
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LM2901PWR
Texas Instruments
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LM2903DT
STMicroelectronics
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LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
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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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