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Texas Instruments LMV7235M7X
- Part No.:
- LMV7235M7X
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV7235M7X.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,546
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Product details
Overview
LMV7235M7X from Texas Instruments is an ultra-low-power, rail-to-rail input comparator with open-drain output, designed for single-supply operation from 2.7 V to 5.5 V. It delivers 75 ns propagation delay at 5 V, consumes only 65 µA supply current, and supports input common-mode voltage from −0.2 V to 5.2 V - enabling ground- and supply-sensing in portable battery-powered systems.
For engineers reviewing the LMV7235M7X datasheet, LMV7235M7X pinout, LMV7235M7X application, or LMV7235M7X equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative options, and supply-chain support details specific to the LMV7235M7X SOT-23-5 variant.
Technical Context
The LMV7235M7X uses a complementary PNP/NPN input stage enabling rail-to-rail input operation with extended common-mode range (−0.2 V to VCC + 0.1 V). Its open-drain output requires an external pull-up resistor, allowing level shifting and wired-OR logic configurations.
It achieves 75 ns propagation delay at 5 V with 100 mV overdrive and 15 pF load, while maintaining stable performance across −40°C to +85°C. Input offset voltage is ±1 mV (typ), and supply current remains ≤95 µA (max) over full operating temperature and voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 75 ns at VS = 5 V, 100 mV overdrive, CL = 15 pF - enables high-speed zero-crossing and sampling up to ~10 MHz system timing |
| Supply Current | 65 µA typical at 5 V - supports >1-year battery life in always-on sensor wake-up circuits |
| Input Common-Mode Range | −0.2 V to VCC + 0.1 V - allows direct sensing of signals below ground or above supply without level-shifting circuitry |
| Output Type | Open-drain - permits flexible pull-up to any voltage ≤5.5 V for I²C-compatible or mixed-voltage interfacing |
| Supply Voltage Range | 2.7 V to 5.5 V - interoperable with Li-ion, Li-Po, and regulated 3.3 V/5 V rails without external regulators |
| Input Offset Voltage | ±1 mV typical at 25°C - ensures accurate threshold detection in precision window comparators |
| ESD Rating (HBM) | ±1000 V - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
LMV7235M7X is packaged in a 5-pin SOT-23 (DBV) with body size 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Open-drain output | Active-low output requiring external pull-up; supports level shifting, bus arbitration, and wired-OR logic |
| 2 - V− | Negative supply / ground | Reference node for single-supply operation; accepts 0 V or negative bias if used in split-supply configuration |
| 3 - IN+ | Non-inverting input | High-impedance node (400 nA max bias current); connects to reference or signal source in threshold-detection topologies |
| 4 - IN− | Inverting input | High-impedance node; used for feedback in hysteresis circuits or as signal input in inverting comparator configurations |
| 5 - V+ | Positive supply | Accepts 2.7–5.5 V; supplies internal bias and defines output high-level when pulled up externally |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with extended range | Operates with inputs 200 mV beyond supply rails - eliminates need for external clamping or attenuation in supply-monitoring circuits |
| Ultra-low quiescent current | 65 µA at 5 V enables use in energy-harvesting and coin-cell-powered applications where standby power is critical |
| 75-ns propagation delay | Supports fast edge detection in motor commutation, ADC windowing, and high-speed data acquisition trigger paths |
| Open-drain output architecture | Enables bidirectional communication on shared buses and simplifies interface to 1.8 V, 3.3 V, or 5 V logic domains |
| Specified over −40°C to +85°C | Validated performance across industrial temperature range - suitable for automotive cabin modules and outdoor IoT sensors |
Applications
| Portable Power Management | Battery Voltage Monitor |
|---|---|
|
Use Scenario: Detecting low-battery condition in Bluetooth earbuds using a resistive divider off a 3.7 V Li-ion cell. IC Role / Device Role / Timing Role: Threshold detector comparing divided battery voltage against 2.4 V reference. Use Value: 65 µA supply current extends sleep-mode runtime; rail-to-rail input captures full discharge curve down to 2.7 V cutoff. |
Use Scenario: Monitoring dual-cell Li-ion pack (7.4 V nominal) for overvoltage and undervoltage protection. IC Role / Device Role / Timing Role: Window comparator formed by two LMV7235M7X units detecting voltage outside 6.0–8.4 V range. Use Value: Open-drain outputs allow OR-ing of fault signals onto single interrupt line; 75 ns response prevents cell damage during transient surges. |
| Zero-Crossing Detector | High-Speed Line Receiver |
|
Use Scenario: Converting 50/60 Hz AC mains waveform into clean digital square wave for energy metering MCU input. IC Role / Device Role / Timing Role: Precision zero-crossing detector with hysteresis to reject noise near 0 V crossing point. Use Value: −0.2 V to 5.2 V input range accommodates AC signal centered at 0 V without DC biasing; ±1 mV offset minimizes phase error. |
Use Scenario: Receiving differential RS-422-like signals in industrial PLC backplane with limited board area. IC Role / Device Role / Timing Role: High-speed differential line receiver using one LMV7235M7X per channel with resistor-based termination. Use Value: 75 ns delay supports >10 Mbps data rates; open-drain output interfaces directly to FPGA GPIO with configurable pull-up voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV7235M5X | Identical electrical specs; packaged in 5-pin SC70 (2.00 mm × 1.25 mm) - 30% smaller footprint than SOT-23 | Preferred for ultra-dense layouts (e.g., wearables), but less robust for manual rework or thermal cycling | Select LMV7235M5X when board space is constrained and automated assembly is used; LMV7235M7X preferred for prototyping and thermal reliability. |
| TLV3501DBVR | Higher speed (4.5 ns), higher supply current (5.3 mA), push-pull output - no external pull-up required | Suitable for high-frequency sampling clocks (>100 MHz), but incompatible with wired-OR or level-shifting use cases | Choose TLV3501DBVR only when nanosecond timing is mandatory and open-drain functionality is unnecessary. |
Compared with LMV7235M7X, LMV7235M5X offers identical performance in a smaller package ideal for miniaturized designs, while TLV3501DBVR trades ultra-low power and open-drain flexibility for raw speed - making LMV7235M7X the optimal balance for battery-sensitive, multi-voltage, or bus-shared applications.
Availability
LMV7235M7X is available at Aetrix Electronics and suitable for portable power management, battery voltage monitoring, zero-crossing detection, and high-speed line receiver applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LMV7235M7X 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 low-power signal conditioning and precision analog ICs.
The LMV7235M7X belongs to TI's LMV72xx ultra-low-power comparator family, engineered specifically for energy-constrained, single-supply systems where speed, input range, and quiescent current must coexist without compromise.
FAQ
What is the maximum operating temperature for LMV7235M7X?
The LMV7235M7X is specified for operation from −40°C to +85°C ambient temperature. Its thermal resistance (θJA) is 265°C/W in the SOT-23-5 package, supporting reliable performance in industrial environments without forced cooling. Full electrical characteristics are guaranteed across this range per TI's SNOS532O datasheet revision O.
Does LMV7235M7X require an external pull-up resistor?
Yes, LMV7235M7X features an open-drain output and requires an external pull-up resistor to function correctly. The resistor value depends on rise-time requirements and pull-up voltage - typically 10 kΩ for 3.3 V pull-up yields <100 ns rise time with 15 pF load. No pull-up is needed for LMV7239 variants, which use push-pull outputs.
Can LMV7235M7X operate from a 2.7 V supply?
Yes, LMV7235M7X is fully specified for 2.7 V to 5.5 V single-supply operation. At 2.7 V, propagation delay increases to 85 ns (100 mV overdrive, 15 pF load), and supply current drops to 52 µA typical - making it ideal for coin-cell or single-LiFePO₄ powered devices where low-voltage headroom is essential.
What is the input common-mode voltage range of LMV7235M7X?
The LMV7235M7X supports an input common-mode voltage range from −0.2 V to VCC + 0.1 V. At 5 V supply, this spans −0.2 V to 5.1 V - enabling direct sensing of signals below ground (e.g., shunt current monitors) or above the supply (e.g., overvoltage flags), without external level-shifting components.
Is LMV7235M7X pin-compatible with LMV7239M7X?
No, LMV7235M7X and LMV7239M7X share identical pinout and package (SOT-23-5), but differ in output structure: LMV7235M7X has open-drain output, while LMV7239M7X has push-pull. Swapping them requires circuit modification - LMV7235M7X needs a pull-up resistor; LMV7239M7X does not. They are not drop-in replacements.
LMV7235M7X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Drain, Rail-to-Rail
- 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
LMV7235M7X FAQ
1.How can I place an order for LMV7235M7X through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7235M7X 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 LMV7235M7X reliable?
The price and inventory of LMV7235M7X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7235M7X is usually 5 days.
3.What payment methods are accepted for LMV7235M7X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7235M7X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7235M7X?
LMV7235M7X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7235M7X 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 LMV7235M7X?
For technical support, including LMV7235M7X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7235M7X requirements.
6.How does Aetrix verify that LMV7235M7X is sourced from the original manufacturer or authorized distributors?
All LMV7235M7X 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 LMV7235M7X meets industry standards.
7.What is the process for return or replacement of LMV7235M7X?
All LMV7235M7X units undergo pre-shipment inspection (PSI). If there is an issue with LMV7235M7X, 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 LMV7235M7X part is unused and in its original packaging.
Return procedure for LMV7235M7X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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