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Texas Instruments LMV7275MFX/NOPB
- Part No.:
- LMV7275MFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV7275MFX/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,748
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Product details
Overview
LMV7275MFX/NOPB from Texas Instruments is a single-channel, rail-to-rail input, low-power comparator with open-drain output, designed for 1.8-V to 5.5-V operation. It delivers 9 µA supply current per channel, 880 ns propagation delay (20-mV overdrive at 1.8 V), and −0.1 V to V+ + 0.1 V input common-mode range - enabling precise voltage monitoring in battery-powered wearables and mobile power rails.
For engineers reviewing the LMV7275MFX/NOPB datasheet, LMV7275MFX/NOPB pinout, LMV7275MFX/NOPB application, or LMV7275MFX/NOPB equivalent, key selection criteria include its open-drain output for wired-OR logic and level-shifting up to 5.5 V, ultra-low quiescent current for multi-year coin-cell operation, and rail-to-rail input stage supporting ground-sensing in low-voltage supply monitors.
Technical Context
The LMV7275MFX/NOPB uses a paralleled PNP/NPN bipolar input stage to achieve rail-to-rail input operation down to −0.1 V below V− and up to 0.1 V above V+, with crossover near 950 mV from V+. Its open-drain NMOS output stage eliminates internal pull-up, allowing external pull-up to any voltage ≤ 5.5 V independent of V+.
It operates across 1.8 V–5.5 V supply, with guaranteed 4 mV input offset voltage (max), 10 nA input bias current, and 2 pA output leakage current (VO = 5 V). Propagation delay increases with supply voltage and decreases with overdrive - e.g., 880 ns at 1.8 V/20 mV, 2100 ns at 5 V/20 mV - reflecting its optimized low-power architecture.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct connection to Li-ion, coin-cell, and USB-powered rails without regulation. |
| Supply Current | 9 µA typical at 1.8 V - enables >10-year operation on CR2032 when duty-cycled in wake-on-event systems. |
| Propagation Delay | 880 ns (tPHL, 20-mV overdrive, 1.8 V) - sufficient for battery voltage threshold detection and slow analog signal edge sensing. |
| Input Offset Voltage | 4 mV max - ensures reliable 10-mV-level detection margins in precision low-voltage monitoring. |
| Input Common-Mode Range | −0.1 V to V+ + 0.1 V - allows direct sensing of signals at ground or near VCC, critical for undervoltage lockout. |
| Output Leakage | 2 pA max (VO = 5 V) - preserves high-impedance bus integrity in multi-comparator wired-OR configurations. |
Pinout & Package
SOT-23-5 package (1.60 mm × 2.90 mm body), surface-mount, moisture-sensitive level 1 - compatible with standard reflow profiles and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Noninverting Input | Differential input node accepting signals from −0.1 V to V+ + 0.1 V; bipolar input stage enables low-noise, low-drift performance. |
| GND | Negative Supply | Reference return for both supply and input common-mode range; must be low-impedance for stable rail-to-rail operation. |
| −IN | Inverting Input | Differential input node with identical voltage range and bias current (10 nA) as +IN; matched with +IN for <6 mV total offset. |
| VOUT | Open-Drain Output | N-channel MOSFET drain only - requires external pull-up; enables level-shifting, wired-OR, and I²C-compatible bus interfacing. |
| V+ | Positive Supply | Primary power pin; supplies internal bias and output stage; supports 1.8–5.5 V with no external components. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Supports sensing at ground or supply rail - essential for battery end-of-discharge detection and supply UVLO circuits. |
| Open-drain output | Enables bidirectional level translation up to 5.5 V and wired-OR logic without external diodes or buffers. |
| 9 µA supply current | Reduces average system power by >95% vs. legacy comparators - extends shelf life in always-on sensor nodes. |
| 880 ns propagation delay (1.8 V) | Meets timing requirements for fast wake-up events while maintaining sub-10-µA quiescent draw. |
| 2 pA output leakage (5 V) | Preserves bus voltage integrity in multi-drop configurations - critical for reliable I²C-style interrupt signaling. |
Applications
| Battery Voltage Monitor | Wearable Power Sequencing |
|---|---|
Use Scenario: Detecting 2.8 V cutoff in a CR2032-powered fitness tracker to initiate graceful shutdown before brownout. IC Role / Device Role / Timing Role: Comparator comparing battery voltage against internal reference; open-drain output drives MCU interrupt line pulled to 3.3 V. Use Value: Enables accurate low-voltage detection without supply regulation, leveraging rail-to-rail input to sense near-ground levels and open-drain output for clean 3.3-V interrupt signaling. | Use Scenario: Controlling sequential power-up of BLE SoC, sensor hub, and display driver in an earbud charging case. IC Role / Device Role / Timing Role: Threshold detector generating enable pulses based on charger voltage ramp; wired-OR output combines multiple voltage-good signals. Use Value: Eliminates need for discrete logic gates; open-drain output allows shared interrupt bus with configurable pull-up voltage matching downstream logic levels. |
| USB-C Port Detection | Low-Power Window Comparator |
Use Scenario: Identifying presence of 5 V USB-C VBUS to switch between battery and adapter power in portable medical devices. IC Role / Device Role / Timing Role: High-side comparator with resistive divider scaling VBUS to within input range; output pulls up to 5 V via external resistor. Use Value: Direct 5-V tolerant interface without level shifters; rail-to-rail input accommodates divider output down to 0 V during plug/unplug transients. | Use Scenario: Monitoring temperature sensor output (0.5–1.2 V) in a smart thermostat to trigger HVAC control only within 25–30 °C window. IC Role / Device Role / Timing Role: One half of dual-threshold detector (paired with second LMV7275); open-drain outputs wired-OR'd to single MCU pin. Use Value: Reduces BOM count vs. op-amp-based solutions; ultra-low current allows continuous monitoring during sleep mode without compromising battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7211DBVR | Push-pull output, 11 µA supply current, 110 ns propagation delay at 5 V - faster but higher power and no level-shifting capability. | Requires external pull-up for wired-OR; unsuitable for mixed-voltage bus interfacing. | Select TLV7211DBVR when speed >100 ns is required and level translation is unnecessary. |
| MAX9021AUT+T | Open-drain output, 1.5 µA supply current, 3 µs propagation delay at 5 V - lower power but significantly slower and limited to 5.5 V max. | Compatible for ultra-low-power wake-up, but too slow for real-time supply monitoring. | Select MAX9021AUT+T only for sub-1-µA standby systems where response time >1 µs is acceptable. |
Compared with TLV7211DBVR and MAX9021AUT+T, the LMV7275MFX/NOPB uniquely balances 9 µA quiescent current, 880 ns delay at 1.8 V, and true open-drain level-shifting - making it optimal for battery-powered systems requiring both efficiency and interface flexibility.
Availability
LMV7275MFX/NOPB is available at Aetrix Electronics and suitable for wearable devices, mobile power management, and battery voltage monitoring requiring stable component supply across long-lifecycle consumer electronics programs.
Supply support for LMV7275MFX/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 delivering analog and embedded processing solutions, with deep expertise in low-power signal conditioning and precision analog ICs.
The LMV727x family was designed specifically for space- and energy-constrained applications including wearables, IoT sensors, and portable medical devices - prioritizing rail-to-rail input, nanoamp quiescent current, and flexible output topologies.
FAQ
What is the maximum supply voltage rating for the LMV7275MFX/NOPB?
The LMV7275MFX/NOPB has an absolute maximum supply voltage of 6 V, with recommended operating range from 1.8 V to 5.5 V. Operation beyond 5.5 V risks permanent damage and invalidates parametric guarantees; the 5.5-V upper limit ensures compatibility with standard USB and Li-ion charging rails while preserving reliability across temperature extremes.
Does the LMV7275MFX/NOPB support rail-to-rail input at 1.8 V supply?
Yes, the LMV7275MFX/NOPB supports rail-to-rail input operation from −0.1 V to V+ + 0.1 V at all supply voltages including 1.8 V. This is achieved via paralleled PNP/NPN input stages, enabling accurate sensing of signals at ground or near VCC - critical for undervoltage lockout and battery end-of-discharge detection in low-voltage systems.
Can the LMV7275MFX/NOPB output drive a 3.3-V logic input directly?
Yes, the LMV7275MFX/NOPB open-drain output can drive a 3.3-V logic input when configured with an external pull-up resistor to 3.3 V. The output NMOS drain tolerates voltages up to 5.5 V, so the 3.3-V pull-up is fully compatible and provides clean, noise-immune logic-level translation without additional components.
What is the typical propagation delay of the LMV7275MFX/NOPB at 2.7 V supply?
The typical propagation delay of the LMV7275MFX/NOPB is 1200 ns (tPHL) and 1300 ns (tPLH) at 2.7 V supply with 20-mV overdrive and 50-pF/5-kΩ load. This reflects the trade-off between ultra-low supply current and speed - sufficient for battery monitoring and power sequencing, but not intended for high-frequency signal comparison.
Is the LMV7275MFX/NOPB pin-compatible with other LMV727x variants?
No, the LMV7275MFX/NOPB shares the same SOT-23-5 pinout as the LMV7271 but differs functionally from the dual-channel LMV7272 (DSBGA-8). While LMV7271 and LMV7275 are pin-compatible in SC70/SOT-23 packages, the LMV7275's open-drain output requires different external biasing than the LMV7271's push-pull output - necessitating schematic review before substitution.
LMV7275MFX/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:
- CMOS, Open-Drain, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5.5V, ±0.9V ~ 2.75V
- :
- 4mV @ 5V
- Voltage - Input Offset (Max):
- 0.01µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 14µA
- Current - Quiescent (Max):
- 78dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 2.1µs
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
LMV7275MFX/NOPB FAQ
1.How can I place an order for LMV7275MFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7275MFX/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 LMV7275MFX/NOPB reliable?
The price and inventory of LMV7275MFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7275MFX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV7275MFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7275MFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7275MFX/NOPB?
LMV7275MFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7275MFX/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 LMV7275MFX/NOPB?
For technical support, including LMV7275MFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7275MFX/NOPB requirements.
6.How does Aetrix verify that LMV7275MFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV7275MFX/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 LMV7275MFX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV7275MFX/NOPB?
All LMV7275MFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7275MFX/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 LMV7275MFX/NOPB part is unused and in its original packaging.
Return procedure for LMV7275MFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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