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Texas Instruments LMV7239M7/NOPB
- Part No.:
- LMV7239M7/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV7239M7/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,882
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Product details
Overview
LMV7239M7/NOPB from Texas Instruments is a rail-to-rail input, push-pull output voltage comparator optimized for ultra-low-power, high-speed operation in single-supply systems. It delivers 75 ns propagation delay at 5 V, consumes only 65 µA supply current, supports 2.7 V to 5.5 V supply range, and features ±0.2 V beyond-rail input common-mode range - enabling ground- and supply-sensing in battery-powered instrumentation.
For engineers reviewing the LMV7239M7/NOPB datasheet, LMV7239M7/NOPB pinout, LMV7239M7/NOPB application, or LMV7239M7/NOPB equivalent, key selection criteria include propagation delay vs. overdrive, push-pull drive capability without external pull-up, rail-to-rail input operation down to 2.7 V, low quiescent current across temperature, and compatibility with SC70-5 packaging for space-constrained portable designs.
Technical Context
The LMV7239M7/NOPB uses complementary PNP/NPN input stage architecture to achieve > rail-to-rail input common-mode range (–0.2 V to V+ + 0.2 V), allowing direct sensing of signals below ground or above V+. Its push-pull output stage provides bidirectional drive capability: sourcing up to 55 mA and sinking up to 30 mA at 5 V, eliminating need for external pull-up resistors.
Propagation delay remains stable across temperature (80–96 ns from –40°C to 125°C at 20 mV overdrive) and load capacitance (75–106 ns for 0–100 pF at 5 V), with skew < 1 ns between rising/falling edges - critical for timing-critical zero-crossing and window detection circuits requiring matched edge response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 75 ns at 5 V, 100 mV overdrive, 15 pF load - enables sub-10 MHz high-speed sampling and fast threshold detection. |
| Supply Current | 65 µA typical at 5 V - supports multi-year battery life in always-on sensor monitoring nodes. |
| Input Common-Mode Range | –0.2 V to V+ + 0.2 V - permits direct interface to transducers referenced to ground or supply rails. |
| Output Drive | Push-pull: VOH = V+ − 0.15 V (4 mA), VOL = 350 mV (–4 mA) at 5 V - drives CMOS/TTL loads directly without level-shifting components. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion, Li-Po, and regulated 3.3 V/5 V system rails. |
| Input Offset Voltage | ±1 mV typical at 5 V - ensures accurate threshold detection in precision window comparators and zero-crossing circuits. |
| PSRR | 85 dB - maintains stable switching points under noisy or poorly regulated supply conditions. |
Pinout & Package
LMV7239M7/NOPB is packaged in a 5-pin SC70 (DGK) package with nominal body size 2.00 mm × 1.25 mm, optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Output | Push-pull digital output capable of sourcing/sinking ≥30 mA - interfaces directly to microcontroller GPIOs or logic gates without external components. |
| 2 - V− | Negative Supply | Ground reference terminal; supports single-supply operation with V− = 0 V. |
| 3 - IN+ | Non-inverting Input | High-impedance (400 nA max bias current) rail-to-rail input accepting signals from –0.2 V to V+ + 0.2 V. |
| 4 - IN− | Inverting Input | Identical electrical characteristics to IN+; used for differential or reference-based comparison configurations. |
| 5 - V+ | Positive Supply | Primary power terminal; operates from 2.7 V to 5.5 V - eliminates need for separate analog/digital supplies. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with extended common-mode range | Operates with inputs 200 mV below ground or above V+ - enables direct sensing of shunt voltages, battery terminals, and supply rails. |
| Push-pull output stage | Eliminates external pull-up resistor requirement - reduces BOM count and board area in compact consumer electronics. |
| 75-ns propagation delay at low power | Delivers high-speed response while consuming only 65 µA - balances timing performance and energy efficiency in wake-up comparators. |
| Stable operation from 2.7 V to 5.5 V | Single-supply compatibility across Li-ion (3.0–4.2 V), USB (5 V), and regulated 3.3 V domains - simplifies power architecture. |
| Low input offset drift | ±1 mV typical offset with <8 mV max over –40°C to +85°C - ensures consistent trip points in automotive and industrial environments. |
Applications
| Portable Power Monitoring | High-Speed Line Receiver |
|---|---|
|
Use Scenario: Real-time battery voltage supervision in Bluetooth earbuds, wearables, and medical patches. IC Role / Device Role / Timing Role: Threshold detector comparing battery voltage against programmable low-battery cutoff (e.g., 3.0 V). Use Value: 65 µA quiescent current extends operational lifetime; rail-to-rail input allows direct connection to cell anode/cathode without level shifters. |
Use Scenario: Differential signal recovery from LVDS or RS-422 receivers in set-top boxes and video interfaces. IC Role / Device Role / Timing Role: High-speed line receiver converting small-swing differential signals into clean CMOS logic levels. Use Value: 75 ns propagation delay and <1 ns skew ensure accurate data eye capture; push-pull output drives FPGA I/O banks directly. |
| Zero-Crossing Detection | Window Comparator |
|
Use Scenario: AC mains synchronization in smart home dimmers and solid-state relays. IC Role / Device Role / Timing Role: Precision zero-crossing detector with hysteresis to suppress noise-induced false triggers. Use Value: –0.2 V to V+ + 0.2 V input range enables direct AC coupling to transformer secondaries; low offset minimizes phase error. |
Use Scenario: Overvoltage/undervoltage protection in DC power supplies and motor controllers. IC Role / Device Role / Timing Role: Dual-threshold comparator detecting when input voltage falls outside safe operating band (e.g., 4.5–5.5 V). Use Value: Matched propagation delays (<1 ns skew) between upper/lower comparators prevent metastability during band transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV7235M7/NOPB | Open-drain output; requires external pull-up resistor; 100 ns rise time vs. LMV7239M7/NOPB's 1.2 ns. | Suitable for wired-OR bus configurations or level-shifting; not ideal for driving capacitive loads directly. | Select LMV7235M7/NOPB only when bus sharing or voltage translation is required; LMV7239M7/NOPB preferred for standalone threshold detection. |
| TLV3501DBVR | Higher speed (4.5 ns), higher supply current (5.3 mA), 2.7–5.5 V supply, SOT-23-6 package. | Better suited for RF envelope detection or laser pulse timing; excessive power for battery-critical applications. | Choose TLV3501DBVR only when nanosecond-level timing dominates over power budget; LMV7239M7/NOPB remains optimal for µA-class systems. |
Compared with LMV7235M7/NOPB, LMV7239M7/NOPB eliminates external pull-up components and improves edge symmetry; versus TLV3501DBVR, it reduces supply current by 80× at the cost of ~16× slower propagation - making LMV7239M7/NOPB the balanced choice for portable, precision, low-power threshold detection.
Availability
LMV7239M7/NOPB is available at Aetrix Electronics and suitable for portable power monitoring, high-speed line reception, zero-crossing detection, and window comparator applications requiring stable component supply across industrial and consumer production cycles.
Supply support for LMV7239M7/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 is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and signal chain solutions.
The LMV7239M7/NOPB belongs to TI's ultra-low-power, high-speed comparator product line, designed specifically for battery-operated instrumentation, portable medical devices, and energy-efficient industrial sensors where timing accuracy and micropower operation are jointly critical.
FAQ
What is the maximum operating temperature for LMV7239M7/NOPB?
The LMV7239M7/NOPB is specified for operation from –40°C to +85°C per its Recommended Operating Conditions. Absolute maximum junction temperature is 150°C, and thermal resistance θJA is 478°C/W for the SC70-5 package - confirming suitability for sealed consumer enclosures and non-ventilated industrial housings when power dissipation remains below 1.5 mW.
Does LMV7239M7/NOPB require external hysteresis for noise immunity?
Yes - the LMV7239M7/NOPB has no internal hysteresis. Its high gain makes it sensitive to input noise near threshold crossings. External positive feedback (e.g., resistor network on IN+) is required to add controlled hysteresis; typical values yield 5–20 mV of hysteresis to suppress chatter in zero-crossing or supply-monitoring applications using LMV7239M7/NOPB.
Can LMV7239M7/NOPB operate from a 3.3-V supply?
Yes - the LMV7239M7/NOPB is fully specified from 2.7 V to 5.5 V. At 3.3 V, it delivers 82 ns propagation delay (50 mV overdrive), 55 µA supply current, and output swing of V+ − 0.18 V (sourcing) and 350 mV (sinking), maintaining full rail-to-rail input range - making it ideal for 3.3 V microcontroller-based systems.
What is the input bias current specification for LMV7239M7/NOPB?
The LMV7239M7/NOPB exhibits input bias current of 30–400 nA (typical 40 nA) at 25°C, with worst-case 600 nA across –40°C to +85°C. This low bias enables high-impedance sensor interfacing (e.g., thermistors, photodiodes) without significant voltage drop across source impedances up to 10 MΩ.
Is LMV7239M7/NOPB pin-compatible with LMV7235M7/NOPB?
Yes - LMV7239M7/NOPB and LMV7235M7/NOPB share identical 5-pin SC70 (DGK) pinout: Pin 1 = VOUT, Pin 2 = V−, Pin 3 = IN+, Pin 4 = IN−, Pin 5 = V+. The only functional difference is output topology (push-pull vs. open-drain); no PCB layout change is needed when substituting LMV7239M7/NOPB for LMV7235M7/NOPB in existing designs.
LMV7239M7/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 6mV @ 5V
- Voltage - Input Offset (Max):
- 0.4µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 95µA
- Current - Quiescent (Max):
- 67dB CMRR, 85dB PSRR
- CMRR, PSRR (Typ):
- 62ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
LMV7239M7/NOPB FAQ
1.How can I place an order for LMV7239M7/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7239M7/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 LMV7239M7/NOPB reliable?
The price and inventory of LMV7239M7/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7239M7/NOPB is usually 5 days.
3.What payment methods are accepted for LMV7239M7/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7239M7/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7239M7/NOPB?
LMV7239M7/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7239M7/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 LMV7239M7/NOPB?
For technical support, including LMV7239M7/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7239M7/NOPB requirements.
6.How does Aetrix verify that LMV7239M7/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV7239M7/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 LMV7239M7/NOPB meets industry standards.
7.What is the process for return or replacement of LMV7239M7/NOPB?
All LMV7239M7/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7239M7/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 LMV7239M7/NOPB part is unused and in its original packaging.
Return procedure for LMV7239M7/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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