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Texas Instruments LMV7239M5/NOPB
- Part No.:
- LMV7239M5/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV7239M5/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,383
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Product details
Overview
LMV7239M5/NOPB from Texas Instruments is a rail-to-rail input, push-pull output voltage comparator optimized for ultra-low-power, low-voltage operation. It delivers 75 ns propagation delay at 5 V supply, draws only 65 µA quiescent current, and supports 2.7 V to 5.5 V single-supply operation - enabling use in battery-powered zero-crossing detectors and high-speed sampling circuits.
For engineers reviewing the LMV7239M5/NOPB datasheet, LMV7239M5/NOPB pinout, LMV7239M5/NOPB application, or LMV7239M5/NOPB equivalent, key selection criteria include its push-pull output eliminating external pull-up resistors, rail-to-rail input extending 200 mV beyond supply rails, and guaranteed 75-ns delay with 100-mV overdrive into 15-pF load.
Technical Context
The LMV7239M5/NOPB uses complementary PNP/NPN input stages to achieve > rail-to-rail common-mode range (–0.2 V to VCC + 0.2 V), enabling ground- and supply-sensing without level shifting. Its push-pull output stage provides bidirectional drive capability: sourcing up to 55 mA and sinking up to 30 mA at 5 V, with output swing within 150 mV of rails under 4-mA load.
Propagation delay remains stable across temperature (–40°C to +85°C) and supply voltage (2.7 V–5.5 V), with skew ≤1 ns between rising/falling edges. Input offset voltage is ±1 mV (typ), CMRR is 67 dB, and PSRR is 85 dB - supporting precision threshold detection in noisy, single-supply environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 75 ns at 5 V, 100 mV overdrive, 15 pF load - enables ≥10 MHz sampling in high-speed comparators |
| Supply Current | 65 µA at 5 V - allows continuous operation in multi-year battery-powered systems |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with Li-ion, 3.3 V, and 5 V logic domains without regulation |
| Input Common-Mode Range | –0.2 V to VCC + 0.2 V - supports direct sensing of ground-referenced and supply-referenced signals |
| Output Type | Push-pull - eliminates need for external pull-up resistor and enables direct TTL/CMOS interfacing |
| Input Offset Voltage | ±1 mV (typ) at 25°C - ensures accurate threshold detection in window and zero-crossing applications |
| Common-Mode Rejection | 67 dB - maintains accuracy despite supply ripple or shared ground noise |
Pinout & Package
LMV7239M5/NOPB is packaged in a 5-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size and standard JEDEC MO-178 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Output | Push-pull digital output capable of sourcing/sinking ≥30 mA - directly drives LEDs, logic inputs, or MOSFET gates |
| 2 - V− | Negative Supply | Ground reference pin; accepts 0 V in single-supply mode - must be connected to system GND |
| 3 - IN+ | Non-inverting Input | High-impedance analog input (bias current ≤400 nA); accepts voltages down to –0.2 V for ground sensing |
| 4 - IN− | Inverting Input | High-impedance analog input with identical common-mode range - used for reference or signal inversion |
| 5 - V+ | Positive Supply | Power input (2.7–5.5 V); supplies internal bias and output stage - decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range | Extends 200 mV below ground and 200 mV above VCC - enables direct monitoring of supply and ground nodes |
| Push-pull output | No external pull-up required; full logic-level swing with fast rise/fall times (1.2 ns/1.2 ns at 5 V) |
| Ultra-low quiescent current | 65 µA at 5 V - reduces battery drain by >5× vs. comparable comparators like TLC3702 |
| 75-ns propagation delay | Guaranteed at 100-mV overdrive into 15-pF load - supports timing-critical edge detection in sampling circuits |
| Single-supply operation | 2.7 V minimum supply - operates from partially discharged Li-ion cells (2.8 V) without brownout |
Applications
| Portable Power Management | High-Speed Line Receiver |
|---|---|
|
Use Scenario: Monitoring battery voltage against programmable thresholds to trigger low-battery alerts or power-state transitions in wearables. IC Role / Device Role / Timing Role: Precision threshold detector comparing battery voltage to internal reference; push-pull output directly asserts MCU interrupt line. Use Value: 65 µA supply current extends battery life; rail-to-rail input enables accurate measurement down to 0 V during deep discharge. |
Use Scenario: Converting differential LVDS or RS-422 signals to single-ended CMOS levels in set-top box video interfaces. IC Role / Device Role / Timing Role: High-speed differential line receiver using one comparator per channel; 75 ns delay ensures sub-13.3 MHz symbol rate compliance. Use Value: Push-pull output eliminates external termination resistors and pull-ups, reducing BOM count and board area. |
| Zero-Crossing Detection | Window Comparator |
|
Use Scenario: Detecting AC line zero crossings for phase-controlled dimming in smart lighting modules. IC Role / Device Role / Timing Role: Ground-referenced comparator with hysteresis; inverting input tied to GND, non-inverting input driven by scaled AC waveform. Use Value: –0.2 V input range prevents clipping at negative peaks; 75 ns delay enables <1.3 µs timing jitter at 60 Hz. |
Use Scenario: Validating sensor output (e.g., thermistor voltage) lies within safe operating bounds before actuating HVAC controls. IC Role / Device Role / Timing Role: Dual-threshold detector using two LMV7239M5/NOPB units - one for upper limit, one for lower limit - with OR'd outputs. Use Value: Matched propagation delays (<1 ns skew) ensure simultaneous decision-making; rail-to-rail input accommodates full sensor span without amplification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC3702CDR | Higher supply current (100 µA), slower propagation (200 ns), open-drain output requiring pull-up | Lacks push-pull drive and rail-to-rail input - unsuitable for ground-sensing or low-power portable use | Select LMV7239M5/NOPB when 65 µA current, 75 ns speed, and push-pull output are required |
| TLV3501CDBVR | Faster (4.5 ns), higher supply current (5.3 mA), rail-to-rail input but not output, 2.7–5.5 V supply | Designed for high-speed ADC front-ends - overkill for battery-powered threshold detection | Choose LMV7239M5/NOPB for optimal balance of speed, power, and ease of use in portable systems |
Compared with TLC3702CDR and TLV3501CDBVR, LMV7239M5/NOPB uniquely combines ultra-low power (65 µA), sub-100 ns speed, push-pull output, and extended rail-to-rail input - making it the only option that meets all four requirements simultaneously for portable and industrial threshold-detection designs.
Availability
LMV7239M5/NOPB is available at Aetrix Electronics and suitable for portable power management, high-speed line receivers, zero-crossing detectors, and window comparators requiring stable component supply across automotive, industrial, and consumer production programs.
Supply support for LMV7239M5/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 leader designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and personal electronics markets.
The LMV7239M5/NOPB belongs to TI's ultra-low-power comparator family targeting battery-operated and energy-constrained applications where speed, precision, and minimal supply current must coexist.
FAQ
What is the maximum operating temperature for LMV7239M5/NOPB?
The LMV7239M5/NOPB is specified for operation from –40°C to +85°C ambient temperature. Its propagation delay increases only marginally (≤140 ns at 125°C junction) and supply current remains within 110 µA across this range, ensuring reliable performance in industrial enclosures and automotive cabins.
Does LMV7239M5/NOPB require external hysteresis for noise immunity?
Yes - the LMV7239M5/NOPB has no internal hysteresis. When detecting slow-moving or noisy signals near the threshold, external positive feedback (e.g., resistor network on IN⁺) is required to prevent multiple toggles. Typical hysteresis values range from 1 mV to 10 mV depending on noise amplitude.
Can LMV7239M5/NOPB operate from a 2.7-V supply while maintaining 75-ns propagation delay?
No - the 75-ns propagation delay is specified at 5 V and 100-mV overdrive. At 2.7 V, typical delay increases to 85 ns (100 mV overdrive, 15 pF load). For designs requiring consistent <100 ns delay across the full 2.7–5.5 V range, verify timing margins at worst-case supply and temperature.
Is LMV7239M5/NOPB pin-compatible with LMV7235M5/NOPB?
Yes - LMV7239M5/NOPB and LMV7235M5/NOPB share identical 5-pin SOT-23 pinout and package dimensions. The only functional difference is output stage: LMV7239M5/NOPB uses push-pull, while LMV7235M5/NOPB uses open-drain. Swapping requires verifying external pull-up presence or absence.
What is the input bias current specification for LMV7239M5/NOPB at 85°C?
At 85°C, the input bias current for LMV7239M5/NOPB is guaranteed ≤600 nA (max), with typical value of 400 nA at 25°C. This low, stable bias current minimizes voltage errors in high-impedance sensor interfaces such as thermistor or photodiode circuits.
LMV7239M5/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- 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
- :
- SOT-23-5
LMV7239M5/NOPB FAQ
1.How can I place an order for LMV7239M5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7239M5/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 LMV7239M5/NOPB reliable?
The price and inventory of LMV7239M5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7239M5/NOPB is usually 5 days.
3.What payment methods are accepted for LMV7239M5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7239M5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7239M5/NOPB?
LMV7239M5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7239M5/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 LMV7239M5/NOPB?
For technical support, including LMV7239M5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7239M5/NOPB requirements.
6.How does Aetrix verify that LMV7239M5/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV7239M5/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 LMV7239M5/NOPB meets industry standards.
7.What is the process for return or replacement of LMV7239M5/NOPB?
All LMV7239M5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7239M5/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 LMV7239M5/NOPB part is unused and in its original packaging.
Return procedure for LMV7239M5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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