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Texas Instruments LMV331M7/NOPB
- Part No.:
- LMV331M7/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV331M7/NOPB.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:176
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Product details
Overview
LMV331M7/NOPB from Texas Instruments is a single, low-voltage, rail-to-rail input comparator with open-collector output, designed for space-constrained portable electronics. It operates from 2.7 V to 5 V, draws only 60 µA typical supply current per channel, features 200 ns propagation delay at 5 V, and supports input common-mode voltage down to −0.1 V (ground-sensing), enabling direct interface with sensors and battery-monitoring circuits.
For engineers reviewing the LMV331M7/NOPB datasheet, LMV331M7/NOPB pinout, LMV331M7/NOPB application, or LMV331M7/NOPB equivalent, key selection considerations include its SC70-5 package footprint, ground-referenced input range, open-collector output compatibility with CMOS/TTL logic, and low-power performance in battery-operated systems.
Technical Context
The LMV331M7/NOPB implements a bipolar-input, BiCMOS-output architecture optimized for noise immunity and fast response in low-voltage analog threshold detection. Its input stage includes ESD-protected PNP transistors enabling true ground-sensing operation, while the open-collector NPN output stage allows wired-OR configurations and flexible pull-up voltage selection up to V+.
It functions as a voltage comparator with hysteresis-capable topology, supporting basic threshold detection, oscillator generation, peak detection, and logic-level translation. The device requires no internal compensation and operates stably with capacitive loads up to 100 pF, per TI's characterization data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5 V - enables direct use with single-cell Li-ion (3.0–3.7 V) and 3.3-V/5-V system rails without level-shifting. |
| Supply Current (Typ) | 60 µA - supports >1-year battery life in always-on sensor wake-up circuits powered by CR2032 or coin cells. |
| Propagation Delay | 200 ns at 5 V, 100 mV overdrive - sufficient for <5 MHz clock monitoring and fast fault-detection response in power supplies. |
| Input Common-Mode Range | −0.1 V to 4.2 V at 5 V supply - permits direct connection of 0 V-referenced signals (e.g., thermistor dividers, battery voltage taps). |
| Output Saturation Voltage | 200 mV at 4 mA sink - ensures reliable low-state logic recognition when driving 3.3-V CMOS inputs with standard 10-kΩ pull-up. |
| Input Offset Voltage (Typ) | 7 mV - sets minimum detectable differential for precision threshold applications such as battery end-of-discharge detection. |
| ESD Rating (HBM) | ±800 V - meets IEC 61000-4-2 Level 2 requirements for handheld device front-end protection. |
Pinout & Package
LMV331M7/NOPB is housed in a 5-pin SC70 package (2.00 mm × 1.25 mm), offering the smallest footprint among TI's LMV33x-N series - approximately half the area of the SOT-23 variant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +IN | Noninverting input - accepts analog signals down to −0.1 V; used for reference or signal input in high-side sensing. |
| 2 | V− | Negative supply terminal - connected to system ground (0 V) in single-supply operation; must be lowest potential node. |
| 3 | −IN | Inverting input - typically tied to voltage reference or feedback divider; determines switching threshold polarity. |
| 4 | OUT | Open-collector NPN output - requires external pull-up resistor; sinks current when active; enables wired-OR logic and mixed-voltage interfacing. |
| 5 | V+ | Positive supply terminal - accepts 2.7–5 V; powers internal circuitry and defines output high-level ceiling via pull-up voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Ground-sensing input stage | Input common-mode range extends 0.1 V below V−, enabling direct measurement of signals referenced to system ground without level-shifting. |
| Ultra-low quiescent current | 60 µA typical per channel allows integration into energy-harvesting nodes and always-on IoT endpoints with multi-year battery life. |
| Open-collector output | Supports flexible logic interfacing: pull-up to 1.8 V, 3.3 V, or 5 V; enables shared-bus alarm signaling and window comparator topologies. |
| Fast propagation delay | 200 ns at 5 V ensures timely response in overvoltage lockout, motor stall detection, and real-time signal edge discrimination. |
| Industrial temperature range | −40°C to +85°C operation validated across full supply range - suitable for automotive cabin modules and industrial handhelds. |
Applications
| Battery Voltage Monitoring | Portable Device Power Sequencing |
|---|---|
|
Use Scenario: Detecting low-battery condition in Bluetooth earbuds before shutdown. IC Role / Device Role / Timing Role: Single comparator comparing cell voltage against 2.8 V reference to assert "BAT_LOW" interrupt signal. Use Value: 60 µA supply current minimizes standby drain; ground-sensing input eliminates need for negative bias on reference divider. |
Use Scenario: Enabling subsystem power rails only after main 3.3-V supply reaches regulation. IC Role / Device Role / Timing Role: Threshold detector verifying VCC ≥ 3.15 V before releasing reset to microcontroller. Use Value: 200 ns response ensures sub-microsecond enable timing; SC70 package saves PCB area in tight RF module layouts. |
| Crystal Oscillator Start-up Control | Over-Temperature Warning Circuit |
|
Use Scenario: Validating crystal oscillator stability before releasing clock to MCU in wearables. IC Role / Device Role / Timing Role: Monitoring oscillator amplitude envelope to confirm oscillation before enabling PLL. Use Value: Open-collector output interfaces directly with 1.8-V logic reset controller; 2.7-V min supply supports ultra-low-power start-up sequencing. |
Use Scenario: Triggering thermal shutdown in portable medical devices using NTC thermistor network. IC Role / Device Role / Timing Role: Comparing thermistor voltage against fixed reference to activate cooling fan or alert LED. Use Value: −40°C to +85°C guaranteed operation ensures reliability across clinical environments; 7 mV offset enables ±2°C trip accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV331DBVR | Lower 25 µA supply current but higher 9 mV typical offset; SC70-5 package identical. | Better suited for ultra-low-power wake-up sensors where speed <1 µs is acceptable. | Select TLV331DBVR when minimizing standby current is critical and 200 ns delay is unnecessary. |
| LMV331IDCKR | Same electrical specs and SC70-5 package; differs only in tape-and-reel packaging and RoHS compliance marking (NOPB vs. IDCKR). | No functional difference; both meet same TI specification SNOS018H. | LMV331IDCKR is functionally identical and interchangeable - choose based on procurement channel availability and reel size requirements. |
Compared with TLV331DBVR, LMV331M7/NOPB offers faster response (200 ns vs. 1.5 µs) at modest current cost (60 µA vs. 25 µA), making it preferable for timing-critical detection; versus LMV331IDCKR, it is a direct form-fit-function replacement differing only in part marking and packaging logistics.
Availability
LMV331M7/NOPB is available at Aetrix Electronics and suitable for battery voltage monitoring, portable device power sequencing, crystal oscillator start-up control, and over-temperature warning circuits requiring stable component supply across long-lifecycle consumer and industrial programs.
Supply support for LMV331M7/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 specializing in analog and embedded processing technologies, with decades of expertise in precision signal chain and low-power design.
The LMV331M7/NOPB belongs to TI's LMV33x-N general-purpose comparator family, engineered specifically for cost-sensitive, space-constrained, low-voltage portable electronics where ground-sensing capability and micropower operation are essential.
FAQ
What is the maximum operating supply voltage for LMV331M7/NOPB?
The absolute maximum supply voltage for LMV331M7/NOPB is 5.5 V, but the recommended operating range is 2.7 V to 5 V per TI's SNOS018H datasheet. Operation above 5 V risks permanent damage and invalidates parametric guarantees; sustained use at 5.5 V is not advised in production designs. LMV331M7/NOPB delivers specified performance only within the 2.7–5 V window.
Does LMV331M7/NOPB support rail-to-rail input operation?
LMV331M7/NOPB supports rail-to-rail *input common-mode range*, extending from −0.1 V below V− to 0.8 V below V+ (e.g., −0.1 V to 4.2 V at 5 V supply). However, it does not support true rail-to-rail *output swing* - its open-collector output saturates near ground when sinking current and pulls up only to the external pull-up voltage. This behavior is inherent to its NPN output stage and confirmed in Section 6.7 of the LMV331M7/NOPB datasheet.
Can LMV331M7/NOPB drive a 3.3-V logic input directly?
Yes - LMV331M7/NOPB can drive a 3.3-V logic input directly when configured with a 3.3-V pull-up resistor on the OUT pin. Its output saturation voltage is 200 mV max at 4 mA sink, well below the 0.8 V VIH threshold of standard 3.3-V CMOS. No level shifter is needed, provided the pull-up voltage does not exceed V+ (5 V max), as stated in Section 7.3.1 of the LMV331M7/NOPB datasheet.
Is LMV331M7/NOPB pin-compatible with other comparators in the LMV33x-N family?
No - LMV331M7/NOPB (single-channel, SC70-5) is not pin-compatible with dual LMV393-N (SOIC-8/VSSOP-8) or quad LMV339-N (SOIC-14/TSSOP-14). Pin count, layout, and terminal assignments differ fundamentally. Only LMV331 variants in SC70-5 (e.g., LMV331IDCKR) share identical pinout and footprint with LMV331M7/NOPB, as verified in Table 1 and Figure 5 of the SNOS018H datasheet.
What is the typical input bias current of LMV331M7/NOPB at 25°C and 5-V supply?
The typical input bias current of LMV331M7/NOPB is 25 nA at TJ = 25°C and V+ = 5 V, with a maximum of 400 nA across the full −40°C to +85°C temperature range, per Section 6.7 of the official SNOS018H datasheet. This low bias current minimizes loading error in high-impedance reference dividers and sensor interfaces, especially critical in battery-monitoring applications.
LMV331M7/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:
- CMOS, Open-Collector, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 7mV @ 5V
- Voltage - Input Offset (Max):
- 0.25µA @ 5V
- Current - Input Bias (Max):
- 84mA @ 5V
- Current - Output (Typ):
- 120µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 600ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
LMV331M7/NOPB FAQ
1.How can I place an order for LMV331M7/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV331M7/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 LMV331M7/NOPB reliable?
The price and inventory of LMV331M7/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV331M7/NOPB is usually 5 days.
3.What payment methods are accepted for LMV331M7/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV331M7/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV331M7/NOPB?
LMV331M7/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV331M7/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 LMV331M7/NOPB?
For technical support, including LMV331M7/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV331M7/NOPB requirements.
6.How does Aetrix verify that LMV331M7/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV331M7/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 LMV331M7/NOPB meets industry standards.
7.What is the process for return or replacement of LMV331M7/NOPB?
All LMV331M7/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV331M7/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 LMV331M7/NOPB part is unused and in its original packaging.
Return procedure for LMV331M7/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV331M7/NOPB Tags
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LM2903DR
Texas Instruments
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LM339DR
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LM339PWR
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LM393DT
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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LM393ADR
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NCX2200GMAZ
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