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Texas Instruments TLV7031DPWR
- Part No.:
- TLV7031DPWR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 4-XFDFN Exposed Pad
- Datasheet:
-
TLV7031DPWR.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 5X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:3,743
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Product details
Overview
TLV7031DPWR from Texas Instruments is a single-channel, nanopower, rail-to-rail input comparator with push-pull output, operating from 1.6V to 6.5V supply, consuming only 315nA quiescent current, achieving 3µs propagation delay, and rated for –40°C to 125°C ambient. It enables precision voltage monitoring in battery-powered smoke detectors and portable motion sensors.
For engineers reviewing the TLV7031DPWR datasheet, TLV7031DPWR pinout, TLV7031DPWR application, or TLV7031DPWR equivalent, key selection criteria include ultra-low ICC at 1.8V operation, internal hysteresis for noise immunity, push-pull drive capability (3mA sink/source), absence of phase reversal on overdrive, and compatibility with 1.6V–6.5V systems including 3V and 5V rails.
Technical Context
The TLV7031DPWR implements a rail-to-rail input stage capable of accepting common-mode voltages up to 100mV beyond VCC and down to VEE – 0.1V, paired with a power-on-reset (POR) circuit that holds output low during supply ramp-up until VCC ≥ 1.6V. Its internal hysteresis (2–17mV, typ. 7mV) ensures stable switching in noisy environments without external components.
As a member of the TLV703x family, it features a push-pull output stage optimized for driving capacitive loads or LEDs directly, with VOH = 4.65V (min) and VOL = 350mV (max) at 3mA load and 5V supply - enabling direct interface with logic inputs or discrete FET gates without pull-up resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 6.5V - supports direct integration into 1.8V, 3.3V, and 5V systems without level-shifting. |
| Quiescent Current | 315nA typical at 1.8V - enables >10-year battery life in coin-cell–powered gas meters or wearables. |
| Propagation Delay | 3µs typical at 5V, 100mV overdrive - provides fast fault detection while maintaining nanoPower efficiency. |
| Input Offset Voltage | ±0.1mV min, ±8mV max - ensures accurate threshold detection across temperature and supply variation. |
| Hysteresis | 2–17mV - suppresses chatter on slow-moving or noisy analog signals (e.g., thermistor outputs). |
| Output Type | Push-pull - eliminates need for external pull-up resistor; sinks/sours 3mA for direct LED or logic-level drive. |
| Operating Temperature | –40°C to +125°C - qualified for industrial sensor nodes and automotive cabin modules. |
Pinout & Package
TLV7031DPWR is packaged in a 5-pin SOT-23 (DBV) package with 2.90mm × 1.60mm body size and "North West" pinout configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Output | Push-pull digital output; drives high/low actively; compatible with CMOS/TTL logic thresholds. |
| 2: V– | Negative Supply | Ground reference (VEE) in single-supply operation; must be connected to system GND. |
| 3: IN+ | Non-inverting Input | High-impedance (2pA bias current) analog input; accepts rail-to-rail common-mode range. |
| 4: IN– | Inverting Input | High-impedance analog input; differential pair with IN+; no phase reversal on overdrive. |
| 5: V+ | Positive Supply | Primary power rail (1.6–6.5V); powers internal bias and output stage. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Accepts inputs from VEE – 0.1V to VCC + 0.1V - enables direct sensing of battery voltage or sensor outputs near supply rails. |
| Internal hysteresis | 2–17mV programmable via supply and temp - eliminates need for external positive feedback resistors in threshold-detection circuits. |
| No phase reversal on overdrive | Guaranteed correct output polarity even when inputs exceed common-mode range - critical for robust fault flag generation. |
| Power-on-reset (POR) | Holds OUT low until VCC ≥ 1.6V - prevents spurious output transitions during power-up in embedded control systems. |
| Ultra-small SOT-23 package | 2.90mm × 1.60mm footprint - saves PCB area in space-constrained designs like earbuds and smart meter modules. |
Applications
| Smoke & Heat Detector | Gas Meter |
|---|---|
Use Scenario: Monitoring thermistor or NTC voltage divider output to trigger alarm when temperature exceeds threshold. IC Role / Device Role / Timing Role: Precision voltage comparator detecting thermal excursion with hysteresis to prevent false alarms from noise. Use Value: 315nA ICC extends battery life to >5 years in sealed units; 3µs response enables rapid fault capture before thermal runaway. | Use Scenario: Converting analog pressure transducer output into clean digital pulses for flow counting. IC Role / Device Role / Timing Role: Threshold detector converting slow-moving analog signal into debounced square wave for microcontroller pulse counting. Use Value: Rail-to-rail input accommodates full 0–5V sensor swing; internal hysteresis eliminates contact bounce artifacts in mechanical flow switches. |
| Motion Detector | Headset/Earbud Battery Monitor |
Use Scenario: Interfacing PIR sensor output to MCU wake-up interrupt line. IC Role / Device Role / Timing Role: Low-power comparator generating edge-triggered wake signal upon IR detection event. Use Value: 1.6V minimum supply allows operation directly from partially discharged Li-ion cells; push-pull output drives MCU GPIO without pull-up. | Use Scenario: Monitoring battery voltage to initiate low-battery warning or shutdown sequence in Bluetooth earbuds. IC Role / Device Role / Timing Role: Voltage supervisor comparing cell voltage against 3.0V or 3.2V threshold. Use Value: ±8mV max VIO ensures accurate state-of-charge estimation; 125°C rating supports operation inside thermally dense earbud enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7031DBVR | Same electrical specs; SC70-5 package (2.00mm × 1.25mm), "South East" pinout (IN+ and IN– swapped vs DPWR) | Requires PCB layout change due to different pin assignment and smaller footprint | Select for space-constrained designs where SC70's smaller size justifies re-layout; verify pin mapping in schematic. |
| TLV7041DPWR | Identical package and pinout, but open-drain output and higher leakage (100pA vs 0.1pA input bias); no sourcing capability | Suitable for wired-OR bus or level translation; unsuitable for direct logic drive without pull-up | Choose when interfacing to multiple devices on shared line or translating between voltage domains; avoid if active-high drive is required. |
Compared with TLV7031DBVR and TLV7041DPWR, the TLV7031DPWR offers the only combination of SOT-23-5 "North West" pinout, push-pull output, and guaranteed 315nA ICC - making it optimal for drop-in replacement in existing SOT-23-based voltage monitor designs requiring active drive.
Availability
TLV7031DPWR is available at Aetrix Electronics and suitable for smoke detectors, gas meters, and portable motion sensors requiring stable component supply across extended product lifecycles and industrial temperature ranges.
Supply support for TLV7031DPWR 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 voltage monitoring in battery-operated safety and sensing systems - emphasizing nanopower operation, rail-to-rail input, and robust noise immunity without external components.
FAQ
What is the minimum supply voltage for reliable operation of the TLV7031DPWR?
The TLV7031DPWR operates reliably down to 1.6V per its Recommended Operating Conditions. While the "S" and "L" variants support 1.2V minimum, the TLV7031DPWR (standard "North West" pinout) is specified for 1.6V–6.5V. Below 1.6V, the internal POR circuit holds OUT low and functionality is not guaranteed. Always verify startup behavior at 1.6V in final design.
Does the TLV7031DPWR require external hysteresis resistors?
No, the TLV7031DPWR includes internal hysteresis (2–17mV) as a fixed feature - eliminating the need for external positive feedback resistors. This simplifies PCB layout and improves consistency across temperature and unit-to-unit variation. External hysteresis is only needed if wider hysteresis than 17mV is required.
Can the TLV7031DPWR drive an LED directly?
Yes, the TLV7031DPWR's push-pull output can source and sink up to 3mA (typ.) at 5V supply, making it suitable for direct LED drive in indicator applications. For a standard 2mA red LED with 1.8V forward voltage, use a series resistor of ~1.6kΩ from VCC to anode and connect cathode to OUT. Confirm current limits per your supply voltage using Figure 5-19 and Figure 5-21 in the datasheet.
Is the TLV7031DPWR pin-compatible with legacy comparators like the LMC7211?
No, the TLV7031DPWR uses the standard "North West" pinout (OUT, V–, IN+, IN–, V+), whereas the LMC7211 and TLV7031L use reversed supply pins (V– on pin 2, V+ on pin 5). The TLV7031L variant exists for legacy drop-in replacement, but TLV7031DPWR requires matching schematic and layout - it is not a direct pin-for-pin substitute for LMC7211.
What is the maximum capacitive load the TLV7031DPWR output can drive without instability?
The TLV7031DPWR output remains stable with up to 100pF load capacitance, as confirmed by rise/fall time characterization (Figure 5-30). Beyond 100pF, propagation delay increases and edge fidelity degrades. For loads >100pF (e.g., long traces or multiple gate inputs), add a small series resistor (10–50Ω) near the output to isolate capacitance and maintain timing integrity.
TLV7031DPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 4-XFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 6.5V
- :
- 8mV @ 5V
- Voltage - Input Offset (Max):
- 2pA
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 335nA
- Current - Quiescent (Max):
- 73dB CMRR, 77dB PSRR
- CMRR, PSRR (Typ):
- 3µs (Typ)
- Propagation Delay (Max):
- 7mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 5-X2SON (0.8x0.8)
TLV7031DPWR FAQ
1.How can I place an order for TLV7031DPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV7031DPWR 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 TLV7031DPWR reliable?
The price and inventory of TLV7031DPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV7031DPWR is usually 5 days.
3.What payment methods are accepted for TLV7031DPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV7031DPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV7031DPWR?
TLV7031DPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV7031DPWR 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 TLV7031DPWR?
For technical support, including TLV7031DPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV7031DPWR requirements.
6.How does Aetrix verify that TLV7031DPWR is sourced from the original manufacturer or authorized distributors?
All TLV7031DPWR 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 TLV7031DPWR meets industry standards.
7.What is the process for return or replacement of TLV7031DPWR?
All TLV7031DPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLV7031DPWR, 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 TLV7031DPWR part is unused and in its original packaging.
Return procedure for TLV7031DPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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