My Inquiry
My Account
Texas Instruments LMV331IDCKTG4
- Part No.:
- LMV331IDCKTG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV331IDCKTG4.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,834
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMV331IDCKTG4 from Texas Instruments is a single-channel, low-voltage, open-collector comparator optimized for portable and space-constrained systems. It operates from 2.7V to 5.5V, draws only 26μA typical supply current, features rail-to-rail input common-mode range including ground, and delivers 150mV typical output saturation voltage - enabling direct interface with 1.8V/3.3V logic in battery-powered vacuum robots and server PSUs.
For engineers reviewing the LMV331IDCKTG4 datasheet, LMV331IDCKTG4 pinout, LMV331IDCKTG4 application, or LMV331IDCKTG4 equivalent, key selection criteria include its SC-70-5 package footprint, guaranteed operation down to –40°C, open-drain flexibility for level-shifting, and verified performance at both 2.7V and 5V supply rails.
Technical Context
The LMV331IDCKTG4 implements a PNP-input stage enabling input common-mode voltage range from ground to VCC–0.7V, supporting accurate sensing near 0V in single-supply systems. Its open-drain NPN output stage sinks up to 23mA (at 2.7V) and requires an external pull-up to define logic-high level - allowing interoperability across mixed-voltage domains.
It functions strictly as a voltage comparator with no internal hysteresis; design-in requires external RC filtering or feedback for noise immunity. Propagation delay is 1000ns (tPHL) at 10mV overdrive with 2.7V supply, improving to 200ns at 100mV overdrive and 5V supply - making it suitable for moderate-speed threshold detection rather than high-frequency signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration into 3.3V and 5V systems without regulation |
| Supply Current (ICC) | 26μA typical at 25°C - enables multi-year battery life in always-on monitoring circuits |
| Input Offset Voltage (VIO) | 7mV typical - sets minimum detectable differential voltage without trimming |
| Common-Mode Input Range | –0.1V to VCC–0.7V - allows ground-referenced sensing and compatibility with 0V–3.3V analog signals |
| Output Saturation Voltage (VSAT) | 150mV typical at IO = 1.5mA - ensures reliable low-state logic margin when driving 1.8V CMOS inputs |
| Propagation Delay (tPHL) | 1000ns at 10mV overdrive, 2.7V - defines maximum usable edge rate for slow-varying thresholds like thermal trip points |
| ESD Rating (HBM) | ±2000V - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
LMV331IDCKTG4 is housed in a 5-pin SC-70 (DCK) package measuring 1.25mm × 2.00mm, optimized for ultra-compact PCB layouts in handheld tools and appliance control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Non-inverting input - connects to reference or signal source requiring positive comparison polarity |
| 2 | IN− | Inverting input - connects to monitored signal; output goes low when IN− > IN+ + VIO |
| 3 | GND | Analog ground reference - must be tied directly to system power plane with low-impedance path |
| 4 | OUT | Open-drain output - requires external pull-up resistor to define logic-high voltage and sink current to ground |
| 5 | VCC+ | Positive supply - accepts 2.7V–5.5V; bypass capacitor (0.1μF) mandatory for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Low quiescent current | 26μA typical - reduces standby power in always-on battery sensors and IoT wake-up circuits |
| Ground-sensing input stage | Input common-mode includes 0V - enables direct monitoring of current-sense shunts or thermistor dividers referenced to ground |
| Open-collector output | Supports wired-AND logic and level translation - allows interfacing with 1.2V, 1.8V, 3.3V, or 5V MCU GPIOs using appropriate pull-up |
| Wide temperature range | –40°C to +125°C operation - qualified for under-hood automotive subsystems and industrial motor drives |
| Fast response at low voltage | 350ns propagation delay at 100mV overdrive and 2.7V - enables responsive overvoltage/undervoltage detection in compact power supplies |
Applications
| Vacuum Robot Obstacle Detection | Server PSU OVP/UVP Monitoring |
|---|---|
Use Scenario: Detects proximity sensor output crossing threshold to trigger motor stop before collision. IC Role / Device Role / Timing Role: Voltage comparator comparing IR sensor output to fixed reference; asserts fault signal within <1μs. Use Value: Enables sub-2mm clearance detection using low-power analog front-end, extending battery runtime by minimizing active sensing duration. | Use Scenario: Monitors 12V rail against 11.4V/12.6V thresholds to initiate shutdown during overvoltage or undervoltage events. IC Role / Device Role / Timing Role: Dual-threshold comparator (with external hysteresis) providing fail-safe power sequencing control. Use Value: Prevents data corruption and hardware damage via deterministic response at 2.7V supply - critical during brownout conditions. |
| Cordless Power Tool Battery Protection | Smart Appliance Motor Control |
Use Scenario: Compares cell voltage against 2.5V/cell cutoff to disable motor drive during deep discharge. IC Role / Device Role / Timing Role: Single-supply comparator with ground-referenced input - interfaces directly with battery pack sense resistors. Use Value: Extends Li-ion cycle life by enforcing precise voltage-based termination without adding supply rails or regulators. | Use Scenario: Detects zero-crossing of AC motor current to synchronize TRIAC firing in fan speed control. IC Role / Device Role / Timing Role: High-noise-immunity comparator with external RC filtering - triggers microcontroller interrupt on clean edge. Use Value: Reduces EMI and improves torque consistency by eliminating timing jitter from unfiltered zero-crossing detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV331IDBVR | SOT-23-5 package (1.60mm × 2.90mm); 3000-unit tape-and-reel; identical electrical specs | Larger footprint but higher thermal mass; preferred for manual assembly or high-power dissipation scenarios | Select LMV331IDBVR when board layout allows larger pad area or when thermal derating above 85°C is required. |
| TLV331IDCKR | Lower 17μA supply current; 1.8V–5.5V supply range; same SC-70-5 package and pinout | Better suited for 1.8V logic domains and ultra-low-power wearables where every nanoamp matters | Choose TLV331IDCKR when operating below 2.7V or when extending coin-cell battery life beyond 5 years is critical. |
Compared with LMV331IDCKTG4, LMV331IDBVR offers mechanical robustness at the cost of board area, while TLV331IDCKR extends low-voltage capability and cuts supply current by 35% - making the latter optimal for next-gen energy-harvesting systems where 2.7V minimum is not guaranteed.
Availability
LMV331IDCKTG4 is available at Aetrix Electronics and suitable for vacuum robot obstacle detection, server PSU overvoltage/undervoltage monitoring, and cordless power tool battery protection requiring stable component supply across extended production lifecycles.
Supply support for LMV331IDCKTG4 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 core expertise in precision analog, power management, and signal chain technologies.
The LMV331 series belongs to TI's general-purpose low-voltage comparator product line, engineered specifically for cost-sensitive, space-constrained applications in portable consumer electronics and industrial controls where 2.7V–5.5V operation and sub-30μA quiescent current are essential.
FAQ
What is the maximum supply voltage rating for LMV331IDCKTG4?
The absolute maximum supply voltage (VCC) for LMV331IDCKTG4 is 5.5V. Exceeding this value risks permanent device damage per TI's Absolute Maximum Ratings table. Operation between 2.7V and 5.5V is fully specified across –40°C to +125°C, with 5V and 2.7V performance explicitly characterized in the datasheet's electrical tables. Always use a 0.1μF ceramic bypass capacitor between VCC and GND to maintain stability.
Does LMV331IDCKTG4 have internal hysteresis?
No, LMV331IDCKTG4 does not include internal hysteresis. It is a basic comparator with no built-in noise immunity - external positive feedback (e.g., resistor from OUT to IN+) must be added for reliable operation in noisy environments. The datasheet's Application and Implementation section provides hysteresis calculation methods and design examples. Without external hysteresis, rapid output toggling may occur near the threshold due to input noise or slow signal edges.
Can LMV331IDCKTG4 interface directly with a 1.8V microcontroller GPIO?
Yes, LMV331IDCKTG4 can interface directly with a 1.8V microcontroller GPIO when configured with a 1.8V pull-up resistor on the open-drain OUT pin. Its output sinks current to ground and presents high impedance when off, allowing the pull-up to set VOH = 1.8V. Ensure the MCU input's VIH specification is ≤1.8V and that the LMV331IDCKTG4's 150mV typical VSAT at 1.5mA load maintains sufficient noise margin below the MCU's VIL.
What is the input common-mode voltage range of LMV331IDCKTG4 at 125°C?
At +125°C, the input common-mode voltage range of LMV331IDCKTG4 is 0V to VCC–0.7V, as confirmed in Section 7.2.2.1 of the datasheet. This means for a 5V supply, inputs must stay within 0V to 4.3V; for 2.7V, within 0V to 2.0V. Operating outside this range - especially with IN+ or IN− above VCC–0.7V - causes incorrect output states. Ground-referenced signals remain fully valid across the full temperature range.
Is LMV331IDCKTG4 RoHS compliant and lead-free?
Yes, LMV331IDCKTG4 is RoHS compliant and lead-free. Per TI's Package Option Addendum, the part uses "NIPDAU" (nickel-palladium-gold) lead finish, carries "Yes" in the RoHS column, and is rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH). The SC-70 package is compatible with standard Pb-free reflow profiles peaking at 260°C, and TI certifies full compliance with EU RoHS Directive 2011/65/EU and China RoHS.
LMV331IDCKTG4 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-Collector
- 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):
- 150µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 600ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
LMV331IDCKTG4 FAQ
1.How can I place an order for LMV331IDCKTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV331IDCKTG4 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 LMV331IDCKTG4 reliable?
The price and inventory of LMV331IDCKTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV331IDCKTG4 is usually 5 days.
3.What payment methods are accepted for LMV331IDCKTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV331IDCKTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV331IDCKTG4?
LMV331IDCKTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV331IDCKTG4 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 LMV331IDCKTG4?
For technical support, including LMV331IDCKTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV331IDCKTG4 requirements.
6.How does Aetrix verify that LMV331IDCKTG4 is sourced from the original manufacturer or authorized distributors?
All LMV331IDCKTG4 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 LMV331IDCKTG4 meets industry standards.
7.What is the process for return or replacement of LMV331IDCKTG4?
All LMV331IDCKTG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV331IDCKTG4, 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 LMV331IDCKTG4 part is unused and in its original packaging.
Return procedure for LMV331IDCKTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV331IDCKTG4 Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
