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Texas Instruments LMV7235M7/NOPB
- Part No.:
- LMV7235M7/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV7235M7/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:31,396
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Product details
Overview
LMV7235M7/NOPB from Texas Instruments is an ultra-low-power, rail-to-rail input comparator with open-drain output, 75 ns propagation delay at 5 V, 65 µA supply current, and −0.2 V to 5.2 V input common-mode range. It enables precise voltage threshold detection in space-constrained, battery-powered systems requiring fast response and minimal quiescent power.
For engineers reviewing the LMV7235M7/NOPB datasheet, LMV7235M7/NOPB pinout, LMV7235M7/NOPB application, or LMV7235M7/NOPB equivalent, key selection criteria include open-drain output compatibility with level-shifting buses, operation down to 2.7 V, guaranteed 75-ns delay at 100-mV overdrive, and validated performance across −40°C to +85°C.
Technical Context
The LMV7235M7/NOPB 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), supporting ground- and supply-sensing configurations. Its open-drain output requires an external pull-up resistor for logic-level translation and wired-OR bus interfacing.
Propagation delay remains stable across temperature (±5 ns variation from −40°C to +85°C at 20-mV overdrive) and load capacitance (≤100 pF), while input offset voltage is specified ±1 mV (typ) at 5 V and ±0.8 mV (typ) at 2.7 V - critical for low-overdrive precision detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 75 ns at 5 V, 100-mV overdrive, 15-pF load - ensures sub-100-ns decision latency in high-speed sampling circuits. |
| Supply Current | 65 µA at 5 V, 25°C - enables multi-year battery life in portable sensors and IoT endpoints. |
| Input Common-Mode Range | −0.2 V to 5.2 V at 5 V supply - supports direct sensing of signals below ground or above VCC, e.g., current-sense shunt monitoring. |
| Output Type | Open-drain - allows flexible level shifting (pull-up to any voltage ≤5.5 V) and wired-OR bus configuration without contention. |
| Supply Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), 3.3-V logic, and 5-V legacy systems. |
| Input Offset Voltage | ±1 mV (typ) at 5 V - enables accurate zero-crossing or window detection with <1-mV hysteresis design margin. |
| Output Leakage Current | 3 nA (max) - minimizes error in high-impedance pull-up networks and preserves battery charge during sleep modes. |
Pinout & Package
LMV7235M7/NOPB is packaged in a 5-pin SC70 (2.00 mm × 1.25 mm) - optimized for ultra-compact PCB layouts in wearables and sensor nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Open-drain output | Active-low output requiring external pull-up; supports level shifting, bus arbitration, and interface to 1.8-V/3.3-V logic. |
| 2 - V− | Negative supply / ground | Reference node for single-supply operation; accepts 0 V or negative bias for split-supply use. |
| 3 - IN+ | Non-inverting input | High-impedance (400 nA max bias current) node for reference or signal input; rail-to-rail capable. |
| 4 - IN− | Inverting input | High-impedance node for threshold or feedback signal; supports hysteresis network implementation. |
| 5 - V+ | Positive supply | Accepts 2.7–5.5 V; powers internal circuitry and defines output swing ceiling when pull-up is connected externally. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Operates with inputs from −0.2 V to VCC + 0.1 V - eliminates need for external level shifters in ground-referenced or supply-sensing applications. |
| Ultra-low quiescent current | 65 µA at 5 V - reduces system standby power by >50% vs. comparable comparators, extending battery runtime. |
| 75-ns propagation delay | Guaranteed at 100-mV overdrive and 15-pF load - enables reliable timing in 10-MHz+ sampling windows and fast fault detection. |
| Open-drain output architecture | Supports bidirectional bus communication and mixed-voltage interfacing via user-selectable pull-up voltage (≤5.5 V). |
| Wide temperature range | Specified from −40°C to +85°C - validated for industrial and automotive cabin environments without derating. |
Applications
| Portable Power Monitoring | USB-C Source Detection |
|---|---|
|
Use Scenario: Real-time battery voltage tracking and low-battery warning in Bluetooth earbuds and smartwatches. IC Role / Device Role / Timing Role: Comparator monitors cell voltage against programmable thresholds using resistor-divider feedback; triggers MCU interrupt on crossing. Use Value: 65 µA supply current extends operational time between charges; rail-to-rail input captures full 2.7–4.2 V discharge curve without signal conditioning. |
Use Scenario: Detecting USB-C source capability (e.g., 5 V vs. 9 V PD contract) before enabling power path. IC Role / Device Role / Timing Role: Compares CC line voltage against precision references to identify source type and initiate PD negotiation. Use Value: 75-ns delay ensures rapid, glitch-free detection; open-drain output interfaces directly to 3.3-V microcontroller GPIO with no level shifter. |
| Industrial Sensor Threshold Alert | Zero-Crossing Detector for AC Meters |
|
Use Scenario: Over-temperature shutdown in motor drives using NTC thermistor voltage divider. IC Role / Device Role / Timing Role: Compares thermistor output against fixed reference; asserts fault flag when threshold exceeded. Use Value: ±1 mV input offset ensures <1°C accuracy at room temperature; −0.2 V input range accommodates thermistor bias below ground in differential configurations. |
Use Scenario: Synchronizing energy meter sampling to AC mains zero crossings for harmonic analysis. IC Role / Device Role / Timing Role: Detects polarity reversal of 50/60 Hz sine wave; outputs clean digital edge aligned to 0 V crossing. Use Value: 75-ns propagation delay limits phase error to <0.1° at 60 Hz; open-drain output pulls up to MCU's 1.8-V I/O domain for low-power wake-on-event. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7211IDBVR | Push-pull output, 110-ns delay, 85-µA supply current, same SC70-5 package. | Lacks open-drain flexibility; requires no pull-up but cannot perform wired-OR or level shift. | Select TLV7211IDBVR only if push-pull drive into 5-V logic is required and bus sharing is unnecessary. |
| MAX9021AUT+T | Open-drain output, 120-ns delay, 1.1-µA supply current, 6-pin SOT23 package. | Ultra-low power but slower; larger footprint and different pinout (6-pin vs. 5-pin). | Choose MAX9021AUT+T only for micropower (<2-µA) designs where 120-ns delay is acceptable and board space permits 6-pin layout. |
Compared with TLV7211IDBVR and MAX9021AUT+T, LMV7235M7/NOPB uniquely balances 75-ns speed, 65-µA quiescent current, and open-drain functionality in a 5-pin SC70 - making it optimal for compact, battery-powered systems needing both speed and interface flexibility.
Availability
LMV7235M7/NOPB is available at Aetrix Electronics and suitable for portable power monitoring, USB-C source detection, industrial sensor threshold alert, zero-crossing detection, and crystal oscillator biasing requiring stable component supply across production volumes.
Supply support for LMV7235M7/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 over 50 years of innovation in precision analog ICs and power management.
The LMV7235M7/NOPB belongs to TI's ultra-low-power comparator family, designed specifically for battery-operated and space-constrained applications demanding rail-to-rail input, nanosecond response, and minimal quiescent current.
FAQ
What is the maximum supply voltage for LMV7235M7/NOPB?
The absolute maximum supply voltage (V+ − V−) for LMV7235M7/NOPB is 6 V, but the recommended operating range is 2.7 V to 5.5 V. Operation beyond 5.5 V risks permanent damage and invalidates parametric guarantees. At 5.5 V, LMV7235M7/NOPB maintains 75-ns propagation delay and 65-µA supply current per datasheet specifications.
Does LMV7235M7/NOPB require an external pull-up resistor?
Yes - LMV7235M7/NOPB features an open-drain output and requires an external pull-up resistor to function. The resistor value must be selected based on rise-time requirements and load capacitance; typical values range from 1 kΩ to 100 kΩ. Without this resistor, the output remains floating and cannot drive logic-high states. LMV7235M7/NOPB's output leakage current is only 3 nA, minimizing static power loss in the pull-up network.
Can LMV7235M7/NOPB operate with inputs below ground?
Yes - LMV7235M7/NOPB supports an input common-mode voltage range extending 200 mV below ground (down to −0.2 V at 5 V supply), enabling direct sensing of negative-going signals such as current-sense shunt voltages or AC-coupled sensor outputs. This capability eliminates the need for level-shifting op-amps in ground-referenced measurement paths.
What is the typical input offset voltage of LMV7235M7/NOPB at 25°C and 5 V supply?
The typical input offset voltage of LMV7235M7/NOPB is ±1 mV at 25°C and 5 V supply, with guaranteed limits of −6 mV to +6 mV. This specification ensures accurate threshold detection in applications like window comparators and zero-crossing detectors, where offset directly impacts trip-point accuracy and hysteresis design margins.
Is LMV7235M7/NOPB pin-compatible with LMV7239M7/NOPB?
No - although LMV7235M7/NOPB and LMV7239M7/NOPB share identical pinouts (SC70-5), they differ fundamentally in output architecture: LMV7235M7/NOPB has open-drain output, while LMV7239M7/NOPB has push-pull output. Swapping them requires redesigning the output network (e.g., removing pull-up resistors for LMV7239M7/NOPB), so they are not drop-in replacements despite mechanical compatibility.
LMV7235M7/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:
- 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
LMV7235M7/NOPB FAQ
1.How can I place an order for LMV7235M7/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV7235M7/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 LMV7235M7/NOPB reliable?
The price and inventory of LMV7235M7/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7235M7/NOPB is usually 5 days.
3.What payment methods are accepted for LMV7235M7/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7235M7/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV7235M7/NOPB?
LMV7235M7/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV7235M7/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 LMV7235M7/NOPB?
For technical support, including LMV7235M7/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7235M7/NOPB requirements.
6.How does Aetrix verify that LMV7235M7/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV7235M7/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 LMV7235M7/NOPB meets industry standards.
7.What is the process for return or replacement of LMV7235M7/NOPB?
All LMV7235M7/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7235M7/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 LMV7235M7/NOPB part is unused and in its original packaging.
Return procedure for LMV7235M7/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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