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Texas Instruments LMV7239 MWC
- Part No.:
- LMV7239 MWC
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- Die
- Datasheet:
-
LMV7239 MWC.pdf
- Description:
- IC COMPARATR 1 GEN PUR WAFERSALE
- Quantity:
- Payment:
- Shipping:
Inventory:4,323
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Product details
Overview
LMV7239MWC from Texas Instruments is a rail-to-rail input, push-pull output voltage comparator optimized for ultra-low-power, high-speed single-supply operation. It delivers 75 ns propagation delay at 5 V with only 65 µA supply current, supports 2.7 V to 5.5 V supply range, and features ±200 mV beyond-rail input common-mode range - enabling ground- and supply-sensing in battery-powered sensor interfaces and precision threshold detection.
For engineers reviewing the LMV7239MWC datasheet, LMV7239MWC pinout, LMV7239MWC application, or LMV7239MWC equivalent, key selection criteria include its push-pull output eliminating external pull-up resistors, guaranteed 75-ns timing at 100-mV overdrive, rail-to-rail input operation down to 2.7 V, low quiescent current across temperature, and compatibility with SC70-5 and SOT-23-5 PCB footprints.
Technical Context
The LMV7239MWC employs complementary PNP/NPN input stages to achieve > rail-to-rail common-mode input 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 active sourcing and sinking capability - delivering 25 mA sink and 55 mA source drive at 5 V with sub-2 ns propagation skew and 1.2 ns rise/fall times.
It operates across –40°C to +85°C with guaranteed performance at 2.7 V and 5 V supplies, exhibits 67 dB CMRR and 85 dB PSRR at 5 V, and maintains stable propagation delay (<96 ns) even with 15 pF capacitive load and 20 mV input overdrive - making it suitable for high-noise-margin zero-crossing and window comparator topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 75 ns at 5 V, 100 mV overdrive, 15 pF load - enables ≥10 MHz comparator-based sampling or clock recovery. |
| Supply Current | 65 µA typical at 5 V - supports multi-year battery life in always-on portable sensors and IoT endpoints. |
| Input Common-Mode Range | –0.2 V to V+ + 0.2 V - permits direct monitoring of battery voltage, ground-referenced transducers, and supply rails without level-shifting. |
| Output Type | Push-pull - eliminates need for external pull-up resistor; supports direct interfacing to CMOS logic or driving moderate capacitive loads. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), 3.3 V systems, and legacy 5 V logic domains. |
| Input Offset Voltage | ±1 mV typical at 5 V - ensures <10 mV total error in 100 mV threshold detection applications over temperature. |
| Output Drive Strength | 55 mA source / 25 mA sink at 5 V - sufficient to directly drive LEDs, small relays, or multiple gate inputs without buffering. |
Pinout & Package
LMV7239MWC is packaged in a 5-pin SC70 (2.00 mm × 1.25 mm) - a space-constrained footprint ideal for wearables, medical patches, and compact industrial sensors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Output | Active push-pull node; sinks to ≤350 mV at –4 mA, sources to V+ – 0.15 V at 4 mA - no external pull-up required. |
| 2 - V– | Negative Supply | Ground reference terminal; supports single-supply operation with V– = 0 V or split-supply configurations. |
| 3 - IN+ | Non-inverting Input | High-impedance (400 nA max bias current) rail-to-rail input; accepts signals from –0.2 V to V+ + 0.2 V. |
| 4 - IN– | Inverting Input | Identical electrical characteristics to IN+; enables flexible configuration as inverting/non-inverting comparator or window detector. |
| 5 - V+ | Positive Supply | Power input; operates from 2.7 V to 5.5 V; internal ESD protection rated to ±1000 V HBM. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with beyond-rail extension | –0.2 V to V+ + 0.2 V common-mode range - enables direct sensing of ground-level or supply-level signals without attenuation or biasing networks. |
| Push-pull output architecture | No external pull-up needed; reduces BOM count and PCB area while improving rise/fall time consistency vs. open-drain alternatives. |
| Ultra-low quiescent current | 65 µA at 5 V - allows integration into always-on subsystems where average power budget is <100 µW. |
| 75-ns propagation delay at full speed | Guaranteed at 100 mV overdrive and 15 pF load - supports high-frequency event detection in motor control commutation or data slicers. |
| High noise immunity | Sub-1 µV input step drives full output swing - minimizes false triggering from EMI or sensor noise without mandatory hysteresis. |
Applications
| Portable Battery Monitoring | High-Speed Zero-Crossing Detection |
|---|---|
Use Scenario: Real-time monitoring of Li-ion cell voltage during charging/discharging cycles in wireless earbuds or smartwatches. IC Role / Device Role / Timing Role: Comparator configured as precise under-voltage lockout (UVLO) and over-voltage protector with 2.7 V and 4.3 V thresholds. Use Value: Rail-to-rail input enables direct connection to battery terminals; 65 µA supply current extends standby runtime by >30% versus comparable comparators. |
Use Scenario: Converting AC line voltage or audio signals into clean digital edges for phase-locked loops or envelope detection in audio codecs. IC Role / Device Role / Timing Role: Ground-referenced zero-crossing detector with <100 ns timing jitter at 50/60 Hz and 20 kHz. Use Value: Beyond-rail input range accepts ±100 mV input centered at 0 V; 75 ns delay ensures sub-degree phase error in synchronous rectification. |
| Industrial Threshold Alarm | Optical Sensor Interface |
Use Scenario: Detecting smoke particle density in photoelectric smoke detectors using photodiode current-to-voltage conversion. IC Role / Device Role / Timing Role: High-gain comparator comparing amplified photodiode signal against programmable reference voltage. Use Value: 67 dB CMRR rejects common-mode noise from shared power rails; push-pull output directly drives alarm LED or microcontroller interrupt pin. |
Use Scenario: Interfacing ambient light sensors (ALS) or proximity IR receivers in smartphones and tablets. IC Role / Device Role / Timing Role: Fast-response comparator converting analog phototransistor output into digital presence/no-presence signal. Use Value: 2.7 V minimum supply allows operation from coin-cell batteries; 1.2 ns rise/fall time preserves pulse fidelity in pulsed IR receiver applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7211IDBVR | Open-drain output; 110 ns propagation delay at 5 V; 85 µA supply current; same SC70-5 package. | Requires external pull-up for logic-high output; slower response limits use in >5 MHz sampling circuits. | Select when level-shifting or wired-OR bus operation is required; avoid when push-pull drive or minimal propagation skew is critical. |
| MAX9021AUT+T | Push-pull output; 45 ns propagation delay; 120 µA supply current; 5-pin SOT-23 package. | Higher power consumption reduces battery life; faster timing suits higher-frequency applications but increases EMI sensitivity. | Select for highest-speed single-supply comparison where 60 µA extra current is acceptable; verify thermal derating in enclosed enclosures. |
Compared with TLV7211IDBVR and MAX9021AUT+T, the LMV7239MWC uniquely balances ultra-low power (65 µA), fast timing (75 ns), and push-pull drive in the smallest SC70 footprint - making it optimal for size- and energy-constrained edge nodes where both efficiency and responsiveness are non-negotiable.
Availability
LMV7239MWC is available at Aetrix Electronics and suitable for portable medical devices, battery management systems, and industrial sensor nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature and voltage.
Supply support for LMV7239MWC 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 and embedded processing technologies, with decades of expertise in precision signal conditioning and low-power design.
The LMV7239MWC belongs to TI's LMV72xx ultra-low-power comparator family, engineered specifically for energy-sensitive, space-constrained applications including wearables, portable instrumentation, and always-on industrial monitoring systems.
FAQ
What is the maximum operating temperature for the LMV7239MWC?
The LMV7239MWC is specified for continuous operation from –40°C to +85°C ambient temperature. Electrical characteristics including propagation delay (≤96 ns), supply current (≤110 µA), and input offset voltage (±8 mV) are guaranteed across this full industrial temperature range per the datasheet's Recommended Operating Conditions table.
Does the LMV7239MWC require an external pull-up resistor on its output?
No, the LMV7239MWC does not require an external pull-up resistor because it features a push-pull output stage. Unlike the open-drain LMV7235, the LMV7239MWC actively drives both high and low states - sourcing up to 55 mA and sinking up to 25 mA at 5 V - enabling direct interface to CMOS inputs or discrete loads without additional components.
Can the LMV7239MWC operate from a 2.7-V supply?
Yes, the LMV7239MWC is fully specified and functional at 2.7 V supply voltage. Its propagation delay remains ≤104 ns, supply current stays ≤100 µA, and input common-mode range extends from –0.2 V to 2.9 V - supporting reliable operation in single-cell lithium or alkaline battery systems where voltage sags below 3.0 V during discharge.
What is the input common-mode voltage range of the LMV7239MWC?
The LMV7239MWC has a beyond-rail input common-mode voltage range of –0.2 V to V+ + 0.2 V, verified across temperature and supply voltage. At 5 V supply, this spans –0.2 V to +5.2 V; at 2.7 V, it covers –0.2 V to +2.9 V - enabling direct sensing of ground-referenced signals, supply rails, or transducer outputs without external biasing.
Is the LMV7239MWC pin-compatible with the LMV7235MWC?
Yes, the LMV7239MWC and LMV7235MWC share identical pinouts (SC70-5 and SOT-23-5), identical supply and input specifications, and identical thermal and absolute maximum ratings. The sole functional difference is output topology: LMV7239MWC uses push-pull, while LMV7235MWC uses open-drain - allowing drop-in replacement when redesigning for active high-drive capability.
LMV7239 MWC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- Die
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
- :
- Wafersale
LMV7239 MWC FAQ
1.How can I place an order for LMV7239 MWC through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7239 MWC 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 LMV7239 MWC reliable?
The price and inventory of LMV7239 MWC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7239 MWC is usually 5 days.
3.What payment methods are accepted for LMV7239 MWC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7239 MWC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7239 MWC?
LMV7239 MWC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7239 MWC 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 LMV7239 MWC?
For technical support, including LMV7239 MWC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7239 MWC requirements.
6.How does Aetrix verify that LMV7239 MWC is sourced from the original manufacturer or authorized distributors?
All LMV7239 MWC 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 LMV7239 MWC meets industry standards.
7.What is the process for return or replacement of LMV7239 MWC?
All LMV7239 MWC units undergo pre-shipment inspection (PSI). If there is an issue with LMV7239 MWC, 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 LMV7239 MWC part is unused and in its original packaging.
Return procedure for LMV7239 MWC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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