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Texas Instruments TLV7031DBVR
- Part No.:
- TLV7031DBVR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV7031DBVR.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,501
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Product details
Overview
TLV7031DBVR from Texas Instruments is a single-channel, nanopower, rail-to-rail input voltage comparator with push-pull output, operating from 1.6V to 6.5V supply, consuming only 315nA quiescent current, achieving 3µs propagation delay, and supporting –40°C to 125°C industrial temperature range - used for precision voltage monitoring in battery-powered smoke detectors and portable motion sensors.
For engineers reviewing the TLV7031DBVR datasheet, TLV7031DBVR pinout, TLV7031DBVR application, or TLV7031DBVR equivalent, this page delivers verified package mapping (SOT-23-5), confirmed pin functions, real-world timing and offset performance, and validated alternative options for low-power comparator selection in space-constrained designs.
Technical Context
The TLV7031DBVR implements a rail-to-rail input stage capable of accepting common-mode voltages up to 100mV beyond VCC, features internal hysteresis (2–17mV) to prevent oscillation on slow-moving inputs, and includes a power-on-reset circuit that holds output low during supply ramp-up until VCC ≥ 1.6V.
Its push-pull output drives both high and low actively - sourcing up to 29mA and sinking up to 33mA at 5V - enabling direct LED control or capacitive load driving without external pull-ups, unlike open-drain variants such as TLV7041.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 6.5V - supports direct operation from single-cell Li-ion (3.0–3.7V), two-cell alkaline (2.4–3.2V), or 3.3V/5V system rails. |
| Quiescent Current | 315nA typical - enables >10-year battery life in coin-cell–powered gas meters or wearable motion detectors. |
| Propagation Delay | 3µs typical at 5V - provides fast fault response while maintaining nanoPower efficiency for real-time overvoltage detection. |
| Input Offset Voltage | ±0.1mV min / ±8mV max - ensures accurate threshold sensing in precision battery voltage monitors or sensor signal conditioning. |
| Common-Mode Range | Rail-to-rail, extending 100mV beyond VCC - allows direct interface with sensors operating above supply rail (e.g., thermopiles, bridge outputs). |
| Output Type | Push-pull - eliminates need for external pull-up resistors, reduces BOM count, and enables bidirectional drive of logic inputs or small LEDs. |
| Hysteresis | 2–17mV - suppresses noise-induced chatter on noisy sensor inputs without requiring external feedback components. |
Pinout & Package
SOT-23-5 package (2.90mm × 1.60mm body size), leaded, surface-mount, with standard "North West" pinout per TI DBV package designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Output | Push-pull digital output - actively drives high (VOH ≥ 4.65V @ 3mA, 5V supply) or low (VOL ≤ 350mV @ 3mA). |
| 2: IN− | Inverting Input | Differential input node - accepts rail-to-rail common-mode signals up to VCC + 0.1V for flexible reference configuration. |
| 3: IN+ | Non-Inverting Input | Differential input node - matched to IN− with <2pA bias current, enabling high-impedance sensor interfacing. |
| 4: VEE | Negative Supply / Ground | Reference return - tied to system ground in single-supply operation; supports true dual-supply configurations down to –0.3V. |
| 5: VCC | Positive Supply | Primary power input - supplies internal bias and output stage; minimum 1.6V required for functional operation (1.2V for S/L variants only). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with 100mV overvoltage tolerance | Enables direct connection to sensors whose output exceeds VCC (e.g., thermocouples, amplified bridge outputs) without level-shifting. |
| Internal hysteresis (2–17mV) | Eliminates need for external positive feedback resistors in noisy environments like motor-driven smoke detectors or HVAC airflow sensors. |
| 315nA quiescent current | Reduces average system current in duty-cycled applications - e.g., wake-on-motion systems where comparator runs continuously but MCU sleeps. |
| 3µs propagation delay at nanoPower | Delivers responsive fault detection (e.g., overtemperature cutoff) without sacrificing battery life in portable medical or safety devices. |
| No phase reversal on overdriven inputs | Guarantees predictable output polarity even when input differential exceeds specification - critical for fail-safe threshold monitoring. |
Applications
| Smoke & Heat Detector | Gas Meter |
|---|---|
Use Scenario: Monitoring analog output from thermistor or IR sensor to trigger alarm when temperature exceeds preset threshold. IC Role / Device Role / Timing Role: Precision voltage comparator detecting overtemperature condition with hysteresis to prevent false alarms from thermal noise. Use Value: 315nA supply current extends 10-year battery life; rail-to-rail input accommodates sensor swing across full 0–5V range. | Use Scenario: Converting pulse output from ultrasonic flow sensor into clean digital edge for microcontroller counting. IC Role / Device Role / Timing Role: Signal conditioning comparator converting low-amplitude, slow-rise analog pulses into sharp TTL-compatible logic transitions. Use Value: 3µs propagation delay ensures accurate high-frequency pulse capture; internal hysteresis rejects EMI in industrial metering enclosures. |
| Motion Detector | Headset/Earbud Battery Monitor |
Use Scenario: Amplifying and comparing PIR sensor output against adjustable reference to detect human movement. IC Role / Device Role / Timing Role: Low-power analog front-end comparator enabling always-on motion wake-up in battery-operated security sensors. Use Value: Nanopower operation allows continuous sensing without depleting coin-cell batteries; –40°C to 125°C rating supports outdoor deployment. | Use Scenario: Monitoring lithium-polymer cell voltage to initiate low-battery warning before shutdown. IC Role / Device Role / Timing Role: Precision voltage monitor comparing battery voltage against 3.3V or 3.0V reference to generate interrupt signal. Use Value: ±8mV max input offset ensures accurate 50mV threshold resolution; push-pull output directly drives MCU GPIO without pull-up resistor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7031DBVT | Same electrical specs and pinout; tape-and-reel packaging (250-unit reel vs. 3000-unit reel for DBVR). | Optimized for low-volume prototyping or small-batch production due to smaller reel size. | Select DBVT for evaluation or pilot builds; DBVR preferred for high-volume manufacturing. |
| TLV7041DBVR | Identical package and footprint, but open-drain output and higher leakage (100pA vs. 315nA ICC), no active high drive. | Required where level translation or wired-OR bus operation is needed (e.g., I²C-compatible alert lines). | Choose TLV7041DBVR only if open-drain functionality is essential; TLV7031DBVR offers superior drive strength and lower ICC. |
Compared with TLV7031DBVT and TLV7041DBVR, the TLV7031DBVR provides optimal balance of nanopower consumption, push-pull drive capability, and production-ready packaging - making it the default choice for new designs requiring reliable, low-current voltage comparison with minimal external components.
Availability
TLV7031DBVR is available at Aetrix Electronics and suitable for smoke & heat detectors, gas meters, motion detectors, and portable audio battery monitoring requiring stable component supply, long-lifecycle support, and consistent parametric performance across temperature and voltage ranges.
Supply support for TLV7031DBVR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV703x family was designed specifically for ultra-low-power, space-constrained applications - including battery-powered safety sensors, portable instrumentation, and energy-harvesting systems - where nanoscale current draw and rail-to-rail input flexibility are mandatory.
FAQ
What is the minimum supply voltage required for TLV7031DBVR to operate correctly?
The TLV7031DBVR requires a minimum supply voltage of 1.6V across VCC to VEE for guaranteed functional operation, as specified in the Recommended Operating Conditions table. Below 1.6V, the internal power-on-reset circuit holds the output low, and device behavior is not characterized. Note that alternate pinout variants (TLV7031S/TLV7031L) support 1.2V minimum, but TLV7031DBVR does not.
Does TLV7031DBVR have internal hysteresis, and how does it affect design?
Yes, TLV7031DBVR includes internal hysteresis ranging from 2mV to 17mV depending on supply and temperature. This built-in hysteresis eliminates the need for external positive feedback resistors in noisy environments - simplifying PCB layout and improving reliability in applications like smoke detectors or industrial motion sensors where input signals may exhibit slow edges or EMI.
Can TLV7031DBVR drive an LED directly, and what current capability does it offer?
Yes, TLV7031DBVR can drive an LED directly via its push-pull output. At 5V supply, it sources up to 29mA and sinks up to 33mA - sufficient for indicator LEDs or low-current optocouplers. For example, with a 20mA red LED and 220Ω series resistor, TLV7031DBVR maintains VOH ≥ 4.65V and VOL ≤ 350mV, ensuring robust on/off control without external transistors.
Is TLV7031DBVR pin-compatible with legacy comparators like LMC7211?
No, TLV7031DBVR uses the standard "North West" SOT-23-5 pinout (OUT, IN−, IN+, VEE, VCC), whereas LMC7211 uses a different pin assignment. The TLV7031L variant was specifically created for LMC72xx drop-in replacement, but TLV7031DBVR is not compatible. Always verify pin functions using Table 4-1 in the official datasheet before board reuse.
What is the maximum input common-mode voltage for TLV7031DBVR?
The TLV7031DBVR supports a rail-to-rail input common-mode range from VEE to VCC + 0.1V, meaning it accepts input signals up to 100mV above the positive supply rail. This capability enables direct interfacing with sensors whose output exceeds VCC - such as certain thermopile amplifiers or overvoltage-tolerant bridge circuits - without external level-shifting components.
TLV7031DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 6.5V, ±0.8V ~ 3.25V
- :
- 8mV @ 5V
- Voltage - Input Offset (Max):
- 2pA
- Current - Input Bias (Max):
- 33mA @ 5V
- Current - Output (Typ):
- 900nA
- Current - Quiescent (Max):
- 73dB CMRR, 77dB PSRR
- CMRR, PSRR (Typ):
- 3µs (Typ)
- Propagation Delay (Max):
- 17mV
- Hysteresis:
- -40°C ~ 125°C (TA)
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
TLV7031DBVR FAQ
1.How can I place an order for TLV7031DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV7031DBVR 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 TLV7031DBVR reliable?
The price and inventory of TLV7031DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV7031DBVR is usually 5 days.
3.What payment methods are accepted for TLV7031DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV7031DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV7031DBVR?
TLV7031DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV7031DBVR 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 TLV7031DBVR?
For technical support, including TLV7031DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV7031DBVR requirements.
6.How does Aetrix verify that TLV7031DBVR is sourced from the original manufacturer or authorized distributors?
All TLV7031DBVR 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 TLV7031DBVR meets industry standards.
7.What is the process for return or replacement of TLV7031DBVR?
All TLV7031DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV7031DBVR, 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 TLV7031DBVR part is unused and in its original packaging.
Return procedure for TLV7031DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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