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Texas Instruments LP339M/NOPB
- Part No.:
- LP339M/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LP339M/NOPB.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,357
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Product details
Overview
LP339M/NOPB from Texas Instruments (formerly National Semiconductor) is an ultra-low power quad voltage comparator IC designed for single-supply operation with 60 µA typical supply current, ±2 mV input offset voltage, and rail-to-rail input common-mode range including ground. It drives CMOS logic directly and sinks up to 30 mA at VO = 2 VDC, making it suitable for battery-powered limit detection and analog-to-digital conversion circuits.
For engineers reviewing the LP339M/NOPB datasheet, LP339M/NOPB pinout, LP339M/NOPB application, or LP339M/NOPB equivalent, this device is evaluated for low-power sensing, hysteresis-based timing generation, and interfacing with MOS/CMOS loads where supply current, ground-sensing capability, and output sink strength are critical selection criteria.
Technical Context
The LP339M/NOPB employs a PNP-input stage enabling input common-mode voltage down to −0.3 VDC and up to V+−1.5 VDC at 25°C, supporting true ground-referenced sensing on single supplies. Its bi-modal Darlington/grounded-emitter output delivers 30 mA sink at VO ≥ 1.5 VDC and ~700 µA at VO = 0.4 VDC without compromising quiescent current.
It operates across 2 VDC to 30 VDC supply range with supply current independent of voltage, features reverse-voltage protected inputs, and supports wired-OR outputs via uncommitted collector configuration-enabling flexible logic-level translation and multi-comparator signal combining.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 60 µA typical - enables multi-year battery life in portable sensors and remote monitors |
| Input Offset Voltage | ±2 mV - supports accurate threshold detection within 0.4% of 5 V reference |
| Input Bias Current | 3 nA - minimizes loading on high-impedance sources like thermistors or photodiodes |
| Output Sink Current | 30 mA at VO = 2 VDC - directly drives LEDs, small relays, or logic gates without external transistors |
| Input Common-Mode Range | Includes ground (0 VDC) on single supply - allows direct sensing of 0–V+ signals without level-shifting |
| Response Time | 1.3 µs (100 mV step, 5 mV overdrive) - sufficient for kHz-range pulse and timing applications |
| Supply Voltage Range | 2 VDC to 36 VDC (or ±18 VDC) - compatible with 3.3 V, 5 V, 12 V, and 24 V systems |
Pinout & Package
LP339M/NOPB is housed in a 14-pin SOIC (D) package per JEDEC MS-012, 3.9 mm body width, 1.27 mm pitch, RoHS-compliant matte tin (SN) lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7 | Comparator Inputs (IN−/IN+) & Outputs | Pins 1–2: Comp A IN−/IN+; Pin 3: Comp A OUT; Pins 4–5: Comp B IN−/IN+; Pin 6: Comp B OUT; Pins 7–8: Comp C IN−/IN+; Pin 9: Comp C OUT; Pins 10–11: Comp D IN−/IN+; Pin 12: Comp D OUT |
| 8 | Ground (GND) | Reference node for all inputs and outputs; supports ground-sensing operation |
| 13 | Positive Supply (V+) | Single or positive rail connection; reverse-voltage protected up to −0.3 VDC |
| 14 | Unused Comparator Tie-off | Unused comparator inputs must be tied to GND per design guidelines to prevent oscillation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 60 µA typical - reduces system standby power by >90% vs. standard LM339 |
| Ground-sensing input range | Common-mode includes 0 VDC - eliminates need for negative bias or level-shifting in single-supply sensor interfaces |
| Bi-modal output stage | Sinks 30 mA above 1.5 VDC and ~700 µA below 0.8 VDC - supports both high-current loads and precise low-voltage switching |
| CMOS-compatible output | Uncommitted collector output - enables pull-up to any voltage ≤36 VDC and wired-OR logic combining |
| Reverse supply protection | Input terminals protected against −0.3 VDC - prevents latch-up during hot-plug or transient conditions |
Applications
| Limit Detection in Portable Sensors | Analog-to-Digital Conversion (ADC Interface) |
|---|---|
|
Use Scenario: Monitoring battery voltage or temperature thresholds in handheld medical devices and IoT edge nodes. IC Role / Device Role / Timing Role: Quad comparator performing simultaneous under-voltage, over-voltage, and thermal trip detection with hysteresis. Use Value: 60 µA quiescent current extends coin-cell battery life beyond 5 years; ground-sensing enables direct connection to battery cathode. |
Use Scenario: Converting analog sensor outputs (e.g., pressure, light) into digital codes using flash or successive-approximation ADC front-ends. IC Role / Device Role / Timing Role: Providing reference-comparison stages for resistor-ladder or capacitor-charging ADC architectures. Use Value: ±2 mV offset ensures <1 LSB error at 10-bit resolution with 5 V full-scale; fast 1.3 µs response supports ≥500 kSPS sampling. |
| Pulse & Time-Delay Generation | LED/Relay Driver Interface |
|
Use Scenario: Generating fixed-duration pulses or programmable delays in industrial control timers and motor sequencing logic. IC Role / Device Role / Timing Role: Configured as one-shot multivibrator or Schmitt-trigger oscillator using RC feedback networks. Use Value: Bi-modal output sustains stable oscillation across 1 Hz–100 kHz; supply independence ensures consistent timing from 3.3 V to 24 V rails. |
Use Scenario: Directly driving indicator LEDs, buzzer transducers, or 5 V/12 V relay coils in PLC I/O modules and test equipment. IC Role / Device Role / Timing Role: Acting as level translator and current amplifier between microcontroller GPIO and load. Use Value: 30 mA sink capability eliminates external driver transistor; uncommitted collector allows pull-up to load-specific voltage (e.g., 12 V relay coil). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher 1.6 mA supply current; ±3 mV offset; no ground-sensing on single supply | Not suitable for ultra-low-power battery systems; requires dual supply or level-shifting for ground-referenced inputs | Select LM339DR only when legacy pin compatibility is required and power budget exceeds 100 µA |
| TLV339IPW | Lower 350 nA supply current; rail-to-rail input; open-drain output; 1.8–5.5 V supply only | Optimized for sub-2 V MCU interfaces; lacks 30 mA sink strength and wide-voltage flexibility of LP339M/NOPB | Choose TLV339IPW for energy-harvesting or 3.3 V embedded systems where output drive is handled externally |
Compared with LM339DR and TLV339IPW, LP339M/NOPB uniquely balances ultra-low 60 µA supply current, 30 mA output sink, and 2–36 V supply flexibility-making it the only option capable of direct LED/relay drive in wide-input battery-powered systems without auxiliary circuitry.
Availability
LP339M/NOPB is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial sensor interfaces, and low-power timing circuits requiring stable component supply across extended production lifecycles.
Supply support for LP339M/NOPB 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 (TI) is a global semiconductor leader delivering analog and embedded processing solutions, with heritage from National Semiconductor's precision analog portfolio.
The LP339M/NOPB belongs to TI's legacy ultra-low-power comparator family, engineered specifically for long-life portable and industrial monitoring systems where supply current, ground-referenced sensing, and robust output drive are co-critical.
FAQ
What is the maximum supply voltage rating for LP339M/NOPB?
The LP339M/NOPB supports a maximum supply voltage of 36 VDC on single supply or ±18 VDC on split supplies, as specified in Absolute Maximum Ratings. Operation beyond these limits risks permanent damage. The device maintains stable 60 µA supply current across 2–30 VDC, making LP339M/NOPB suitable for 3.3 V, 5 V, 12 V, and 24 V industrial systems without derating.
Does LP339M/NOPB support ground-referenced input signals on single supply?
Yes, LP339M/NOPB features an input common-mode voltage range that includes ground (0 VDC), even when operated from a single positive supply. This allows direct sensing of signals referenced to system ground-such as battery cathode voltage or thermistor outputs-without level-shifting circuitry. The input can tolerate −0.3 VDC transient excursions, per datasheet Note 4.
What is the output configuration of LP339M/NOPB and how does it affect load interfacing?
LP339M/NOPB uses an uncommitted collector (open-collector) output stage with bi-modal sink capability: ~30 mA at VO ≥ 1.5 VDC (Darlington mode) and ~700 µA at VO = 0.4 VDC (grounded-emitter mode). This allows LP339M/NOPB to directly drive LEDs, relays, or CMOS logic while maintaining ultra-low quiescent current-no external transistor is needed for most medium-current loads.
How does LP339M/NOPB compare to LM339 in terms of pin compatibility and performance?
LP339M/NOPB has identical pinout to LM339 but delivers significantly lower supply current (60 µA vs. 1.6 mA), better input offset (±2 mV vs. ±3 mV), and guaranteed ground-sensing capability on single supply. While functionally interchangeable in many layouts, LP339M/NOPB enables new low-power designs where LM339 would exceed thermal or battery-life constraints-making LP339M/NOPB a drop-in upgrade for efficiency-critical applications.
What is the recommended handling for unused comparators in LP339M/NOPB?
All inputs of unused comparators in LP339M/NOPB must be tied to ground (GND), as specified in Application Hints. Leaving inputs floating causes unpredictable output states and potential oscillation, increasing supply current and noise coupling. The output of unused comparators may be left open or pulled up-no termination is required since LP339M/NOPB outputs are uncommitted collectors.
LP339M/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, MOS, Open-Collector
- Voltage - Supply, Single/Dual (±):
- 2V ~ 36V, ±1V ~ 18V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.025µA @ 5V
- Current - Input Bias (Max):
- 10mA @ 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
LP339M/NOPB FAQ
1.How can I place an order for LP339M/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP339M/NOPB 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 LP339M/NOPB reliable?
The price and inventory of LP339M/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP339M/NOPB is usually 5 days.
3.What payment methods are accepted for LP339M/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP339M/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP339M/NOPB?
LP339M/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP339M/NOPB 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 LP339M/NOPB?
For technical support, including LP339M/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP339M/NOPB requirements.
6.How does Aetrix verify that LP339M/NOPB is sourced from the original manufacturer or authorized distributors?
All LP339M/NOPB 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 LP339M/NOPB meets industry standards.
7.What is the process for return or replacement of LP339M/NOPB?
All LP339M/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP339M/NOPB, 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 LP339M/NOPB part is unused and in its original packaging.
Return procedure for LP339M/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP339M/NOPB Tags
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