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Texas Instruments TLV7031DCKT
- Part No.:
- TLV7031DCKT
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV7031DCKT.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,148
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Product details
Overview
TLV7031DCKT 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 supporting –40°C to 125°C ambient temperature - used for precision voltage monitoring in battery-powered smoke detectors and portable gas meters.
For engineers reviewing the TLV7031DCKT datasheet, TLV7031DCKT pinout, TLV7031DCKT application, or TLV7031DCKT equivalent, this page delivers verified functional identity, SC70-5 package mapping, confirmed push-pull output behavior, internal hysteresis, and design-meaningful parameter context for low-power sensing systems.
Technical Context
The TLV7031DCKT implements a rail-to-rail input stage capable of accepting common-mode voltages up to 100mV beyond VCC, with internal hysteresis (2–17mV) and no phase reversal under overdriven inputs. Its power-on-reset circuit holds the output low at VEE during supply ramp-up until VCC ≥ 1.6V.
As a member of the TLV703x family, it features a dedicated push-pull output stage capable of sourcing/sinking ≥3mA at 5V, enabling direct LED drive or capacitive load switching without external pull-up - distinct from open-drain TLV704x variants.
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 rails without regulation. |
| Quiescent Current | 315nA typical - enables >10-year battery life in coin-cell–powered motion detectors with wake-on-compare duty cycling. |
| Propagation Delay | 3µs typical at 5V - provides sub-millisecond fault response for overvoltage/overtemperature shutdown in smart meter front-ends. |
| Input Offset Voltage | ±0.1mV min / ±8mV max - ensures <10mV detection threshold error across –40°C to 125°C for precision reference monitoring. |
| Common-Mode Range | Rail-to-rail +100mV beyond VCC - allows direct sensing of battery voltage or sensor outputs near supply rails without level-shifting. |
| Output Type | Push-pull - eliminates need for external pull-up resistor, reduces BOM count, and enables bidirectional drive of logic inputs or small LEDs. |
| Hysteresis | 2–17mV - suppresses chatter on slow-moving analog signals (e.g., thermistor outputs) in noisy industrial environments. |
Pinout & Package
The TLV7031DCKT is packaged in a 5-pin SC70 (DCK) package, measuring 2.00mm × 1.25mm, with exposed pad not present. Pin functions follow the "South East" pinout configuration (TLV7031S).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Push-pull output - drives high to VCC or low to VEE; compatible with CMOS/TTL logic inputs and can sink/source ≥3mA. |
| 2 | IN− | Inverting input - accepts rail-to-rail common-mode voltage; differential input impedance >1012Ω enables high-Z sensor interfacing. |
| 3 | IN+ | Non-inverting input - identical rail-to-rail range as IN−; internal hysteresis applied across both inputs. |
| 4 | VCC | Positive supply - must exceed 1.6V for 200µs before valid output; decoupling capacitor recommended at pin. |
| 5 | VEE | Negative supply or ground - serves as output low reference and input common-mode lower bound; tied to system GND in single-supply use. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input with 100mV overvoltage tolerance | Enables direct connection to unregulated battery terminals or sensor outputs exceeding VCC without clamping diodes or attenuation. |
| Internal hysteresis (2–17mV) | Eliminates need for external positive feedback resistors in threshold-detection circuits, reducing component count and layout area. |
| No phase inversion on overdriven inputs | Guarantees monotonic output transition even when input exceeds common-mode limits - critical for robust fault flag generation. |
| Power-on-reset (POR) circuit | Holds OUT low during power ramp-up, preventing spurious logic transitions in microcontroller wake-up or enable sequencing. |
| Ultra-low 315nA supply current | Permits continuous monitoring in energy-harvesting nodes where average current budget is <1µA. |
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 providing clean digital fault flag with built-in hysteresis to reject noise-induced false triggers. Use Value: 315nA quiescent current extends 10-year lithium battery life; 3µs response enables rapid thermal runaway detection before hazardous escalation. | Use Scenario: Detecting pressure transducer output crossing calibration thresholds to validate flow integrity or detect tampering. IC Role / Device Role / Timing Role: Low-voltage comparator interfacing directly to ratiometric bridge sensors powered from same 3.3V rail. Use Value: Rail-to-rail input accepts full 0–3.3V sensor swing; push-pull output drives MCU interrupt pin without pull-up, saving PCB space and leakage path. |
| Mobile Phone Battery Monitor | Servo Drive Position Sensor |
Use Scenario: Comparing battery cell voltage against undervoltage lockout (UVLO) threshold during discharge cycles. IC Role / Device Role / Timing Role: Nanopower comparator enabling always-on battery health supervision independent of system power state. Use Value: 1.6V minimum supply allows operation down to deeply discharged Li-ion (≈2.5V pack); SC70 package fits tight mobile PCB real estate. | Use Scenario: Converting analog potentiometer or resolver feedback into direction-indicating logic for closed-loop motor control. IC Role / Device Role / Timing Role: High-speed comparator generating quadrature edge signals for position tracking in servo amplifiers. Use Value: 3µs propagation delay supports >100kHz position update rates; no phase reversal prevents miscounting during fast mechanical transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7041DCKT | Open-drain output; identical supply range, quiescent current, and propagation delay; requires external pull-up for logic-high output. | Used where level translation (e.g., 1.8V logic sensing 3.3V signal) or wired-OR bus operation is required. | Select TLV7041DCKT only if open-drain functionality is explicitly needed; TLV7031DCKT is preferred for simpler, lower-component-count push-pull interfaces. |
| LMV7219M5X | Higher quiescent current (1.1µA), faster propagation (220ns), wider supply (2.7–5.5V), no internal hysteresis, SOT-23-5 package. | Targeted at higher-speed, higher-power applications like optical interrupters or fast overcurrent protection where speed outweighs battery life. | Choose LMV7219M5X only when sub-µs response is mandatory; TLV7031DCKT remains optimal for ultra-low-power, noise-immune threshold detection. |
Compared with TLV7041DCKT and LMV7219M5X, the TLV7031DCKT uniquely balances nanopower consumption (315nA), rail-to-rail input capability, internal hysteresis, and push-pull output - making it the most suitable choice for space-constrained, battery-operated sensing nodes requiring reliable, low-component-count voltage monitoring.
Availability
TLV7031DCKT is available at Aetrix Electronics and suitable for smoke & heat detectors, portable gas meters, and mobile phone battery monitors requiring stable component supply across long-lifecycle consumer and industrial programs.
Supply support for TLV7031DCKT 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 specializing in analog and embedded processing technologies, with leadership in low-power signal chain solutions.
The TLV703x product line was designed specifically for ultra-low-power, space-constrained sensing applications - delivering nanopower operation, rail-to-rail inputs, and integrated hysteresis without sacrificing speed or reliability.
FAQ
What is the correct pinout configuration for TLV7031DCKT?
The TLV7031DCKT uses the "South East" pinout (TLV7031S): Pin 1 = OUT, Pin 2 = IN−, Pin 3 = IN+, Pin 4 = VCC, Pin 5 = VEE. This differs from the standard "North West" (TLV7031) and reversed-supply "L" variants - confirming SC70 package alignment per TI's Figure 4-2.
Does TLV7031DCKT include internal hysteresis?
Yes, TLV7031DCKT includes factory-trimmed internal hysteresis of 2–17mV (typical 7mV at 25°C), eliminating the need for external positive feedback components in threshold-detection circuits while maintaining stability against noise.
Can TLV7031DCKT operate from a 1.6V supply?
Yes, TLV7031DCKT is fully specified from 1.6V to 6.5V supply. At 1.6V, it maintains 315nA quiescent current and functional propagation delay, enabling direct interface with single-cell lithium or NiMH batteries without LDO pre-regulation.
What is the maximum output drive capability of TLV7031DCKT?
TLV7031DCKT's push-pull output sources ≥29mA and sinks ≥33mA at 5V supply (per electrical characteristics table), enabling direct drive of LEDs, small relays, or logic inputs without external buffers - verified under short-circuit conditions.
Is TLV7031DCKT suitable for automotive applications?
TLV7031DCKT is qualified for –40°C to 125°C ambient operation and meets JEDEC JESD22-A114 HBM ±2000V ESD rating, but is not AEC-Q200 qualified. It is appropriate for industrial and consumer automotive-adjacent applications (e.g., cabin air quality sensors), not safety-critical powertrain systems.
TLV7031DCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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 @ 5V
- Current - Input Bias (Max):
- -
- 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
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
TLV7031DCKT FAQ
1.How can I place an order for TLV7031DCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV7031DCKT 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 TLV7031DCKT reliable?
The price and inventory of TLV7031DCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV7031DCKT is usually 5 days.
3.What payment methods are accepted for TLV7031DCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV7031DCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV7031DCKT?
TLV7031DCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV7031DCKT 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 TLV7031DCKT?
For technical support, including TLV7031DCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV7031DCKT requirements.
6.How does Aetrix verify that TLV7031DCKT is sourced from the original manufacturer or authorized distributors?
All TLV7031DCKT 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 TLV7031DCKT meets industry standards.
7.What is the process for return or replacement of TLV7031DCKT?
All TLV7031DCKT units undergo pre-shipment inspection (PSI). If there is an issue with TLV7031DCKT, 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 TLV7031DCKT part is unused and in its original packaging.
Return procedure for TLV7031DCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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