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Texas Instruments LP339DRE4
- Part No.:
- LP339DRE4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LP339DRE4.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,956
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Product details
Overview
LP339DRE4 from Texas Instruments is a low-power quadruple voltage comparator IC designed for single-supply operation across 3 V to 30 V, featuring ±2 mV input offset voltage (typ), 60 µA supply current (typ), and 30 mA output sink capability at VO = 2 V - used in battery-powered limit detection and analog-to-digital conversion circuits.
For engineers reviewing the LP339DRE4 datasheet, LP339DRE4 pinout, LP339DRE4 application, or LP339DRE4 equivalent, this device serves as a drop-in replacement for LM339 in industrial sensing, power monitoring, and CMOS-level interface designs where ultra-low quiescent current and ground-sensing inputs are required.
Technical Context
The LP339DRE4 implements four independent open-collector comparators with p-n-p input stages enabling common-mode input range down to ground, and bimodal Darlington/ground-emitter output architecture delivering 30 mA sink at VO ≥ 1.5 V and ~700 µA at VO ≤ 0.4 V. Its input bias current is −2.5 nA (typ) and input offset current is ±0.5 nA (typ).
It operates over 0°C to 70°C, supports reverse-voltage protected power supply inputs, and maintains stable 60 µA supply current independent of VCC across 3–30 V. The device is fully compatible with MOS and CMOS logic families due to its output voltage swing and uncommitted collector outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - enables direct use with 5 V, 12 V, and 24 V industrial rails without regulation. |
| Quiescent Supply Current | 60 µA typ - allows multi-year operation on coin-cell batteries in portable sensors. |
| Input Offset Voltage | ±2 mV typ - supports accurate threshold detection within ±5 mV over full temperature range. |
| Output Sink Current | 30 mA at VO = 2 V - directly drives LEDs, small relays, or TTL/CMOS inputs without external buffers. |
| Common-Mode Input Range | 0 V to VCC − 2 V - permits ground-referenced signal comparison without level-shifting circuitry. |
| Input Bias Current | −2.5 nA typ - minimizes loading on high-impedance sensor sources like thermistors or photodiodes. |
| Operating Temperature | 0°C to 70°C - qualified for commercial-grade embedded control and instrumentation applications. |
Pinout & Package
LP339DRE4 is housed in a 14-pin SOIC (D) package with 1.27 mm pitch, 8.75 mm × 3.91 mm body, and 1.75 mm max height - RoHS-compliant, tape-and-reel packaged (2500 pcs/reel), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 9, 10, 11, 12, 13 | Comparator Inputs (IN+, IN−) & Outputs (OUT) | Pins 1/2 (OUT1/IN−1), 3/4 (IN+1/IN−2), 5/6 (IN+2/OUT2), 7/8 (VCC/GND), 9/10 (OUT3/IN−3), 11/12 (IN+3/IN−4), 13/14 (IN+4/OUT4) - each comparator has dedicated differential inputs and open-collector output. |
| 7 | Positive Supply (VCC) | Single-supply rail connection; reverse-voltage protected up to −0.3 V. |
| 8 | Ground (GND) | Reference node for all inputs and outputs; common-mode range includes 0 V. |
| 14 | Output 4 (OUT4) | Open-collector output requiring external pull-up; shares sink capability and bimodal drive behavior with other outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow Power Consumption | 60 µA typical supply current enables >10-year battery life in always-on threshold monitors. |
| Ground-Sensing Inputs | Common-mode range includes 0 V - eliminates need for negative supply or level shifters in single-rail systems. |
| Bimodal Output Stage | Darlington mode (≥1.5 V) delivers 30 mA sink; ground-emitter mode (≤0.4 V) provides 700 µA - ensures reliable low-voltage logic interfacing. |
| CMOS/MOS Logic Compatibility | Output voltage swing and leakage specs (≤1 µA at VO = 30 V) ensure clean interfacing with 3.3 V/5 V digital families. |
| Pin-for-Pin Replacement | Direct substitute for LM339 and LP339 variants - no PCB layout changes required for legacy design upgrades. |
Applications
| Industrial Threshold Detection | Battery Voltage Monitoring |
|---|---|
|
Use Scenario: Detecting overvoltage/undervoltage conditions in 12 V DC power supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Quadruple comparator configured as window detector and fault flag generator with hysteresis. Use Value: Enables precise 11.5 V/12.5 V thresholds using resistor dividers and internal ±2 mV offset, reducing BOM count vs. op-amp-based solutions. |
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging in portable medical devices. IC Role / Device Role / Timing Role: Low-power comparator comparing cell voltage against reference to trigger charge termination or low-battery alert. Use Value: 60 µA quiescent current extends runtime between charges; ground-sensing inputs allow direct cell measurement without bias networks. |
| LED Status Indication | Simple A/D Conversion |
|
Use Scenario: Driving status LEDs in HVAC control panels based on sensor readings (e.g., temperature, airflow). IC Role / Device Role / Timing Role: Comparator output directly sinking LED current through 220 Ω resistor tied to +5 V rail. Use Value: 30 mA sink capability eliminates external transistor driver; open-collector outputs enable wired-OR logic for multi-status indication. |
Use Scenario: Implementing 2-bit flash ADC for panel meter displays in test equipment. IC Role / Device Role / Timing Role: Four comparators fed by resistor-ladder reference voltages to quantize analog input into discrete levels. Use Value: Simultaneous comparison reduces conversion time to <1.3 µs per transition; low input bias avoids ladder network loading errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher input offset voltage (±3 mV typ), wider temp range (−40°C to 85°C), same SOIC-14 package and pinout. | Preferred for extended-temperature industrial environments; not optimized for ultra-low-power battery use. | Select LM339DR when operating outside 0°C–70°C or when legacy LM339 compatibility is mandatory. |
| LP2901DR | Wider operating temperature (−40°C to 85°C), identical electrical specs except for temp rating and slightly higher max ICC (100 µA). | Suitable for automotive and outdoor equipment where cold-start or high-ambient operation is required. | Choose LP2901DR for designs needing −40°C functionality while retaining LP339DRE4's low-power performance. |
Compared with LP339DRE4, LM339DR offers broader temperature tolerance but higher offset drift, while LP2901DR matches key electrical parameters but adds extended cold-temperature capability - both retain pin compatibility and open-collector output structure for seamless integration.
Availability
LP339DRE4 is available at Aetrix Electronics and suitable for industrial sensing, battery management, and CMOS logic interfacing applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LP339DRE4 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, embedded processing, and power management technologies, with over 90 years of innovation in precision analog components.
The LP339DRE4 belongs to TI's legacy low-power comparator product line, engineered for cost-sensitive, energy-efficient applications in commercial instrumentation, power supplies, and interface circuits where reliability and pin compatibility are critical.
FAQ
What is the maximum supply voltage for LP339DRE4?
The LP339DRE4 supports an absolute maximum supply voltage of 36 V, with recommended operation from 3 V to 30 V. Exceeding 36 V risks permanent damage. Its reverse-voltage protection prevents damage from accidental −0.3 V on VCC, making it robust in field-deployed systems where polarity reversal may occur. Always observe derating curves above 70°C ambient.
Does LP339DRE4 support dual-supply operation?
Yes, LP339DRE4 can operate from split supplies (e.g., ±15 V), though it is optimized for single-supply use. When using dual supplies, the common-mode input range remains referenced to ground, and the output stage functions identically - however, the GND pin must be connected to system ground, not mid-rail. No modifications to biasing are needed.
Can LP339DRE4 drive a relay directly?
Yes, LP339DRE4 can directly drive small signal relays rated ≤30 mA coil current at VO = 2 V. Its Darlington-mode output delivers up to 30 mA sink capability, sufficient for 5 V/10 mA or 12 V/25 mA relays. Use a flyback diode across the coil and ensure VCC is within 3–30 V. Do not exceed 30 mA continuous load to avoid thermal stress.
What is the input offset voltage specification for LP339DRE4 over temperature?
The LP339DRE4 has a typical input offset voltage of ±2 mV at 25°C, with a maximum of ±5 mV over its full operating range (0°C to 70°C). At temperature extremes, offset may reach ±9 mV per datasheet Electrical Characteristics table - design margining should assume ±9 mV for worst-case threshold accuracy in precision applications.
Is LP339DRE4 pin-compatible with LM339?
Yes, LP339DRE4 is pin-for-pin compatible with LM339 in SOIC-14 packaging. Both share identical pin assignments, electrical interface behavior, and open-collector output structure. This allows direct substitution in existing LM339 designs without layout changes, provided the 0°C–70°C temperature range meets system requirements.
LP339DRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, MOS, Open-Collector
- Voltage - Supply, Single/Dual (±):
- 3V ~ 30V, ±1.5V ~ 15V
- :
- 5mV @ 30V
- Voltage - Input Offset (Max):
- 0.025µA @ 5V
- Current - Input Bias (Max):
- 30mA @ 5V
- Current - Output (Typ):
- 100µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- 0°C ~ 70°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
LP339DRE4 FAQ
1.How can I place an order for LP339DRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LP339DRE4 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 LP339DRE4 reliable?
The price and inventory of LP339DRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP339DRE4 is usually 5 days.
3.What payment methods are accepted for LP339DRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP339DRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP339DRE4?
LP339DRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP339DRE4 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 LP339DRE4?
For technical support, including LP339DRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP339DRE4 requirements.
6.How does Aetrix verify that LP339DRE4 is sourced from the original manufacturer or authorized distributors?
All LP339DRE4 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 LP339DRE4 meets industry standards.
7.What is the process for return or replacement of LP339DRE4?
All LP339DRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LP339DRE4, 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 LP339DRE4 part is unused and in its original packaging.
Return procedure for LP339DRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP339DRE4 Tags
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LM2903DR
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LM339DR
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LM339PWR
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LM393DT
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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
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LM2903P
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LM393ADR
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NCX2200GMAZ
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