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Texas Instruments LMV331IDBVRG4
- Part No.:
- LMV331IDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV331IDBVRG4.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,341
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Product details
Overview
LMV331IDBVRG4 from Texas Instruments is a single-channel, low-voltage, open-collector comparator optimized for portable and space-constrained applications. It operates from 2.7 V to 5.5 V, draws only 26 µA typical supply current, features rail-to-rail input common-mode range including ground, and delivers 150 mV typical output saturation voltage at 1.5 mA sink current - enabling precise threshold detection in battery-powered vacuum robots and server PSUs.
For engineers reviewing the LMV331IDBVRG4 datasheet, LMV331IDBVRG4 pinout, LMV331IDBVRG4 application, or LMV331IDBVRG4 equivalent, this page provides verified functional context, validated pin-level design meaning, confirmed low-voltage comparator use cases, and two technically documented alternative parts with explicit parameter and application differences.
Technical Context
The LMV331IDBVRG4 implements a PNP-input stage enabling accurate operation down to ground on both inputs, with input common-mode range specified from –0.1 V to (VCC – 0.7 V) across –40°C to 125°C. Its open-collector NPN output supports flexible logic-level translation via external pull-up, allowing interface to 1 V–5 V digital systems without level-shifting circuitry.
Propagation delay is load- and overdrive-dependent: at VCC = 2.7 V and 100 mV overdrive, tPHL = 350 ns and tPLH = 400 ns into 5.1 kΩ; at 5 V and same overdrive, delays improve to 200 ns and 300 ns respectively. Input offset voltage remains ≤7 mV (typ) across full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, and 5 V rails without regulation. |
| Supply Current (ICC) | 26 µA typical at 25°C - enables multi-year battery life in always-on sensor monitoring circuits. |
| Input Offset Voltage (VIO) | ≤7 mV typical - ensures reliable detection of small-signal thresholds (e.g., 10–50 mV window comparators). |
| Output Saturation Voltage (VSAT) | 150 mV typical at 1.5 mA sink - guarantees clean logic-low assertion even under moderate load currents. |
| Common-Mode Input Range | Includes ground (–0.1 V to VCC – 0.7 V) - allows direct sensing of 0 V referenced signals like battery cell voltages or current-sense shunts. |
| Propagation Delay | 200 ns (tPHL) / 300 ns (tPLH) at 5 V, 100 mV overdrive - sufficient for <5 MHz event detection in power sequencing and fault latching. |
| ESD Rating (HBM) | ±2000 V - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
SOT-23-5 (DBV) package: 1.60 mm × 2.90 mm body, 0.95 mm max height, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Non-inverting input | Accepts reference or signal input; common-mode range includes ground for single-supply designs. |
| 2 (IN−) | Inverting input | Accepts monitored signal; differential comparison against IN+ determines output state. |
| 3 (OUT) | Open-collector output | Sinks current when IN− > IN+ + VIO; requires external pull-up for logic-high assertion and voltage-level translation. |
| 4 (GND) | Analog/digital ground | Reference node for all internal circuitry; must be low-impedance and decoupled near device. |
| 5 (VCC+) | Positive supply | Single supply input (2.7–5.5 V); bypass capacitor required for noise immunity in fast-switching applications. |
Key Features
| Feature | Design Value |
|---|---|
| Low quiescent current | 26 µA typical - reduces system standby power by >90% vs legacy comparators (e.g., LM393: ~500 µA). |
| Ground-sensing input stage | PNP input architecture enables true 0 V operation - eliminates need for negative supply or level-shifters in shunt-based current sensing. |
| Open-collector output | Supports wired-AND logic and mixed-voltage interfacing (e.g., 3.3 V comparator driving 1.8 V MCU interrupt line via 1.8 V pull-up). |
| Wide temperature range | Specified from –40°C to +125°C - suitable for under-hood automotive modules and industrial motor drives. |
| Fast response at low VCC | 350 ns propagation delay at 2.7 V/100 mV overdrive - enables real-time overvoltage/undervoltage protection in 3.3 V systems. |
Applications
| Vacuum Robot Obstacle Detection | Server PSU OVP/UVP Monitoring |
|---|---|
|
Use Scenario: Detecting proximity sensor output crossing threshold to trigger motor stop or direction change. IC Role / Device Role / Timing Role: Single comparator comparing analog IR sensor output to adjustable reference voltage. Use Value: 26 µA supply current extends battery runtime; ground-referenced inputs simplify PCB layout with no level-shifting components. |
Use Scenario: Monitoring DC output rails (12 V, 5 V, 3.3 V) for overvoltage (OVP) and undervoltage (UVP) faults. IC Role / Device Role / Timing Role: Threshold detector feeding latch or microcontroller interrupt pin via open-collector output. Use Value: 150 mV VSAT ensures reliable low-state signaling into 10 kΩ pull-up; wide VCC range supports direct monitoring from auxiliary 3.3 V bias rail. |
| Cordless Power Tool Battery Protection | Smart Appliance Motor Control |
|
Use Scenario: Cell voltage monitoring in 2–4S Li-ion packs to prevent over-discharge during high-current load events. IC Role / Device Role / Timing Role: Precision comparator comparing individual cell voltage to 2.5 V reference for cutoff control. Use Value: ≤7 mV VIO ensures ±10 mV accuracy in cell balancing decisions; –40°C to 125°C rating covers tool operational extremes. |
Use Scenario: Fan speed feedback validation and thermal shutdown initiation in washing machine motor drivers. IC Role / Device Role / Timing Role: Comparator detecting zero-crossing or tachometer pulse amplitude drop indicating stall or overheating. Use Value: Open-collector output interfaces directly to 3.3 V MCU GPIO; 2.7 V minimum VCC allows operation from LDO-fed control rail during brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV331IDBVR | Lower ICC (12 µA typ), higher VIO (±9 mV max), same SOT-23-5 package. | Better for ultra-low-power battery sensors; less suitable for precision <5 mV threshold detection. | Choose TLV331IDBVR when sub-15 µA supply current is critical and offset tolerance >9 mV is acceptable. |
| LM393DR | Higher VCC range (2–36 V), higher ICC (500 µA typ), SOIC-8 package, no ground-sensing input. | Required for industrial 24 V systems; incompatible with direct ground-referenced sensing without resistor dividers. | Choose LM393DR only when operating above 5.5 V or requiring legacy footprint compatibility; not drop-in for LMV331IDBVRG4. |
Compared with TLV331IDBVR and LM393DR, LMV331IDBVRG4 uniquely balances ultra-low power (26 µA), ground-sensing capability, and 5 V system compatibility - making it optimal for cost-sensitive, space-constrained 3.3 V embedded controls where precision and supply flexibility are jointly required.
Availability
LMV331IDBVRG4 is available at Aetrix Electronics and suitable for vacuum robot obstacle detection, server PSU OVP/UVP monitoring, and cordless power tool battery protection requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for LMV331IDBVRG4 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 conditioning and low-power design.
The LMV331IDBVRG4 belongs to TI's general-purpose low-voltage comparator family, engineered specifically for cost-sensitive, battery-operated, and space-constrained applications where ground-referenced sensing and minimal quiescent current are essential design requirements.
FAQ
What is the maximum supply voltage for LMV331IDBVRG4?
The absolute maximum supply voltage for LMV331IDBVRG4 is 5.5 V, with recommended operation between 2.7 V and 5.5 V. Exceeding 5.5 V risks permanent damage per the Absolute Maximum Ratings table. At 5 V, the device delivers improved propagation delay (200 ns tPHL) and higher output sink current (10 mA min) versus 2.7 V operation.
Does LMV331IDBVRG4 support input voltages at ground level?
Yes, LMV331IDBVRG4 supports input common-mode voltages down to –0.1 V (including ground) at 25°C, and from 0 V up to (VCC – 0.7 V) across –40°C to 125°C. This ground-sensing capability is enabled by its PNP input stage and makes it suitable for direct shunt-current or battery-cell voltage monitoring without level-shifting circuitry.
What is the purpose of the open-collector output in LMV331IDBVRG4?
The open-collector output in LMV331IDBVRG4 allows flexible logic-level translation: an external pull-up resistor sets the high-state voltage (e.g., 1.8 V, 3.3 V, or 5 V), enabling interface with mixed-voltage systems. It also supports wired-AND configurations for multiple comparators sharing one interrupt line - a key feature used in server PSU fault-bus architectures.
Can LMV331IDBVRG4 drive an LED directly?
Yes, LMV331IDBVRG4 can drive an LED directly when configured with a series current-limiting resistor from VCC to the OUT pin. With 5 V supply and 1.5 mA sink current, VSAT is 150 mV typical, leaving ~4.85 V across the resistor/LED. Ensure total sink current stays within 23 mA absolute maximum (per Electrical Characteristics table) and derate for temperature.
Is LMV331IDBVRG4 pin-compatible with other comparators in the LMV3xx family?
No - LMV331IDBVRG4 (SOT-23-5) is not pin-compatible with LMV393 (SOIC-8/TSSOP-8) or LMV339 (SOIC-14/TSSOP-14/X2QFN-14). However, its pinout matches other LMV331 variants in SOT-23-5 (e.g., LMV331IDBVR, LMV331IDBVRE4) and shares identical functionality and electrical specs across DBV-packaged versions.
LMV331IDBVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
- :
- SOT-23-5
LMV331IDBVRG4 FAQ
1.How can I place an order for LMV331IDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV331IDBVRG4 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 LMV331IDBVRG4 reliable?
The price and inventory of LMV331IDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV331IDBVRG4 is usually 5 days.
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LMV331IDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV331IDBVRG4 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 LMV331IDBVRG4?
For technical support, including LMV331IDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV331IDBVRG4 requirements.
6.How does Aetrix verify that LMV331IDBVRG4 is sourced from the original manufacturer or authorized distributors?
All LMV331IDBVRG4 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 LMV331IDBVRG4 meets industry standards.
7.What is the process for return or replacement of LMV331IDBVRG4?
All LMV331IDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV331IDBVRG4, 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 LMV331IDBVRG4 part is unused and in its original packaging.
Return procedure for LMV331IDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV331IDBVRG4 Tags
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LM2903DR
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LM339DR
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LM393DT
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