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Texas Instruments LMV331IDBVRE4
- Part No.:
- LMV331IDBVRE4
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV331IDBVRE4.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,794
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Product details
Overview
LMV331IDBVRE4 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 LMV331IDBVRE4 datasheet, LMV331IDBVRE4 pinout, LMV331IDBVRE4 application, or LMV331IDBVRE4 equivalent, key selection criteria include its SOT-23-5 package footprint, guaranteed operation down to –40°C, open-drain flexibility for level-shifting, and compatibility with low-power microcontroller wake-up and overvoltage detection circuits.
Technical Context
The LMV331IDBVRE4 implements a PNP-input stage that enables input common-mode voltage down to ground (–0.1V min) and up to VCC – 0.7V, supporting accurate sensing in single-supply 3.3V and 5V systems. Its open-drain NPN output stage sinks up to 23mA (2.7V supply) or 84mA (5V supply), allowing configurable pull-up voltage and wired-AND functionality.
Propagation delays are 1000ns (tPHL) and 500ns (tPLH) at 2.7V with 10mV overdrive, improving to 200–300ns at 5V. Input offset voltage is specified at ±7mV max (25°C), with 5μV/°C temperature coefficient - suitable for precision threshold detection without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct connection to Li-ion battery rails and standard logic supplies 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 max at 25°C - ensures reliable 10mV-level overdrive detection in sensor threshold applications. |
| Common-Mode Input Range | –0.1V to VCC – 0.7V - allows ground-referenced inputs and compatibility with 0–3.3V analog sensors. |
| Output Saturation Voltage (VSAT) | 150mV typical at 1.5mA sink - guarantees clean logic-low levels for 1.8V I/O interfaces with margin. |
| Propagation Delay (tPHL/tPLH) | 200ns / 300ns typical at 5V, 100mV overdrive - sufficient for power sequencing, fault flag assertion, and slow-speed control loops. |
| ESD Rating (HBM) | ±2000V - meets industrial handling requirements without additional protection circuitry. |
Pinout & Package
SOT-23-5 package (1.60mm × 2.90mm body size), surface-mount, RoHS-compliant, moisture sensitivity level 1 (260°C peak reflow).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Non-inverting input - accepts reference or signal voltage; common-mode range includes ground. |
| 2 | IN− | Inverting input - used for feedback, threshold comparison, or differential sensing. |
| 3 | GND | Analog ground reference - must be low-impedance and decoupled near device for noise immunity. |
| 4 | OUT | Open-drain output - requires external pull-up; enables level shifting, wired-AND, and flexible logic interfacing. |
| 5 | VCC+ | Positive supply pin - bypass with 0.1μF ceramic capacitor to GND for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Low supply current | 26μA typical - reduces quiescent power in battery-backed supervisory circuits and IoT edge nodes. |
| Ground-sensing input | Input common-mode extends to 0V - eliminates need for negative supply or level-shifting in ground-referenced sensor interfaces. |
| Open-collector output | Configurable pull-up voltage up to 5.5V - enables direct interfacing with mixed-voltage systems (e.g., 3.3V comparator driving 5V MCU interrupt line). |
| Wide temperature range | –40°C to +125°C operation - qualified for automotive cabin modules, industrial PLC I/O, and server PSU thermal monitoring. |
| Fast response at low voltage | 600ns tPHL at 2.7V, 100mV overdrive - supports real-time overcurrent flagging in compact DC-DC converters. |
Applications
| Vacuum Robot Motor Control | Server Power Supply Monitoring |
|---|---|
|
Use Scenario: Detect motor stall or brush wear by comparing back-EMF waveform against fixed threshold during commutation. IC Role / Device Role / Timing Role: Single comparator providing fast, low-power overcurrent flag generation with open-drain output tied to MCU GPIO. Use Value: Enables early fault detection using only 26μA quiescent current and no external biasing - extending runtime between battery charges. |
Use Scenario: Monitor +12V and +5V rails for undervoltage/overvoltage conditions in redundant server PSUs. IC Role / Device Role / Timing Role: Threshold detector with rail-to-rail input range, driving fault latch via open-drain output pulled to 3.3V system management bus. Use Value: Guarantees reliable trip points across –40°C to +125°C ambient, eliminating need for precision references or op-amp buffers. |
| Cordless Power Tool Battery Protection | Smart Appliance Load Sensing |
|
Use Scenario: Trigger cell-balancing or cutoff when individual Li-ion cell voltage exceeds 4.25V during charging. IC Role / Device Role / Timing Role: Precision comparator comparing cell voltage (via resistive divider) to stable reference; output drives MOSFET gate driver enable. Use Value: ±7mV offset ensures <10mV detection error at room temperature - meeting UL 2580 safety margin requirements. |
Use Scenario: Detect motor start-up surge or jam condition in washing machine drum drive by monitoring current-sense resistor voltage. IC Role / Device Role / Timing Role: High-speed comparator with 200ns propagation delay at 5V, interfaced to 3.3V MCU via 10kΩ pull-up. Use Value: 150mV typical VSAT ensures logic-low level remains below 0.4V even at 5mA sink - compatible with standard 3.3V CMOS inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV331IDBVR | Identical electrical specs and SOT-23-5 package; differs only in tape-and-reel packaging (3000 pcs vs 3000 pcs) and lead finish (NIPDAU vs NIPDAU). | No functional difference; both rated for –40°C to +125°C and share identical marking (R1IF/R1IK). | Select LMV331IDBVR for standard TI production release; LMV331IDBVRE4 is functionally identical with same MSL rating and RoHS compliance. |
| TLV331DBVR | Lower supply current (17μA typ), improved offset (±3mV max), but narrower common-mode range (0.2V below VCC) and no guaranteed –40°C operation. | Better for ultra-low-power wearable sensors; unsuitable for industrial temp-range or ground-sensing applications requiring full rail-to-rail input. | Choose TLV331DBVR only if sub-20μA ICC and tighter offset are critical, and operating temperature stays above –20°C with non-ground-referenced inputs. |
Compared with LMV331IDBVRE4, LMV331IDBVR offers identical performance and qualification - making it a seamless sourcing alternative - while TLV331DBVR trades ground-sensing capability and extended temperature support for lower power and better offset, limiting its use in harsh or precision-critical environments.
Availability
LMV331IDBVRE4 is available at Aetrix Electronics and suitable for vacuum robot motor control, server PSU monitoring, and cordless power tool battery protection requiring stable component supply across industrial temperature ranges and long-lifecycle programs.
Supply support for LMV331IDBVRE4 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 comparators and low-power signal conditioning.
The LMV331IDBVRE4 belongs to TI's general-purpose low-voltage comparator family, designed specifically for cost-sensitive, space-constrained applications where 2.7–5.5V operation, ground-sensing inputs, and open-drain flexibility are essential - such as portable consumer electronics and industrial power management.
FAQ
What is the maximum supply voltage for LMV331IDBVRE4?
The absolute maximum supply voltage for LMV331IDBVRE4 is 5.5V, with recommended operation from 2.7V to 5.5V. Exceeding 5.5V risks permanent damage per TI's Absolute Maximum Ratings. At 5V supply, LMV331IDBVRE4 delivers 84mA sink capability and 200ns propagation delay with 100mV overdrive - making it suitable for robust 5V system monitoring.
Does LMV331IDBVRE4 support ground-referenced inputs?
Yes, LMV331IDBVRE4 supports true ground-referenced inputs: its input common-mode voltage range extends to –0.1V (min) at 25°C and 0V across –40°C to +125°C. This enables direct connection of sensors or dividers referenced to system ground without level-shifting circuitry - a key advantage over comparators with limited lower common-mode limits.
What is the output configuration of LMV331IDBVRE4?
LMV331IDBVRE4 features an open-drain (open-collector) NPN output stage, requiring an external pull-up resistor to define the logic-high voltage level. This configuration allows level shifting (e.g., 3.3V comparator output driving a 5V MCU interrupt), wired-AND logic, and flexible interface design - unlike push-pull outputs that fix the high-state voltage to VCC.
What package type is LMV331IDBVRE4 supplied in?
LMV331IDBVRE4 is supplied in a SOT-23-5 package (TI package code DBV), measuring 1.60mm × 2.90mm with 0.95mm height. It is RoHS-compliant, moisture sensitivity level 1 (MSL-1), and qualified for reflow up to 260°C. The part marking on the top surface is R1IF or R1IK, matching TI's standard SOT-23 labeling for this device family.
How does LMV331IDBVRE4 compare to LM339 in low-voltage operation?
LMV331IDBVRE4 is the single-channel, low-voltage counterpart to the legacy LM339: it operates down to 2.7V (vs LM339's 5V minimum), consumes 26μA typical supply current (vs ~500μA for LM339), and maintains rail-to-rail input capability including ground. While LM339 targets wide-supply industrial systems, LMV331IDBVRE4 is optimized for modern 3.3V/5V portable and energy-efficient designs where supply headroom and quiescent power are constrained.
LMV331IDBVRE4 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
LMV331IDBVRE4 FAQ
1.How can I place an order for LMV331IDBVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV331IDBVRE4 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 LMV331IDBVRE4 reliable?
The price and inventory of LMV331IDBVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV331IDBVRE4 is usually 5 days.
3.What payment methods are accepted for LMV331IDBVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV331IDBVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV331IDBVRE4?
LMV331IDBVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV331IDBVRE4 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 LMV331IDBVRE4?
For technical support, including LMV331IDBVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV331IDBVRE4 requirements.
6.How does Aetrix verify that LMV331IDBVRE4 is sourced from the original manufacturer or authorized distributors?
All LMV331IDBVRE4 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 LMV331IDBVRE4 meets industry standards.
7.What is the process for return or replacement of LMV331IDBVRE4?
All LMV331IDBVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV331IDBVRE4, 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 LMV331IDBVRE4 part is unused and in its original packaging.
Return procedure for LMV331IDBVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV331IDBVRE4 Tags
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LM2903DR
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LM339DR
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