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Texas Instruments TLV9031QDBVRQ1
- Part No.:
- TLV9031QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV9031QDBVRQ1.pdf
- Description:
- COMPARATORS
- Quantity:
- Payment:
- Shipping:
Inventory:8,263
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Product details
Overview
TLV9031QDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified single-channel precision comparator with push-pull output, 300 µV input offset voltage, 100 ns propagation delay, and 16 µA per-channel quiescent current across 1.65 V to 5.5 V supply. It operates from –40°C to +125°C ambient and features fault-tolerant inputs (–0.2 V to 5.7 V common-mode range) and Power-On Reset for deterministic startup in HEV/EV battery monitoring circuits.
For engineers reviewing the TLV9031QDBVRQ1 datasheet, TLV9031QDBVRQ1 pinout, TLV9031QDBVRQ1 application, or TLV9031QDBVRQ1 equivalent, this page delivers verified technical context, package-specific pin functions, automotive-grade reliability data, and precise selection guidance for voltage monitoring, overvoltage protection, and system supervision in harsh environments.
Technical Context
The TLV9031QDBVRQ1 implements a rail-to-rail input stage with fault tolerance up to 6 V beyond rails and a robust push-pull output capable of sourcing/sinking ≥4 mA. Its internal Power-On Reset circuit ensures output remains in a known state until supply reaches minimum operating voltage, eliminating transients during power-up/down sequences.
It uses low-input-bias-current (5 pA typical), high-PSRR (≥75 dB), and high-CMRR (≥60 dB) architecture optimized for precision DC threshold detection in noisy automotive subsystems-particularly where input signals may exceed supply rails without phase inversion or damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - supports direct interface with 1.8 V, 3.3 V, and 5 V microcontrollers and sensors without level-shifting. |
| Input Offset Voltage | ±0.3 mV (typ) - enables accurate voltage window detection with ≤300 µV error at room temperature. |
| Propagation Delay | 100 ns (high-to-low), 115 ns (low-to-high) - provides fast response for real-time fault detection in battery management systems. |
| Quiescent Current | 16 µA per channel - allows always-on monitoring in low-power automotive modules without compromising battery life. |
| Input Common-Mode Range | –0.2 V to (V+) + 0.2 V - accepts signals beyond supply rails, enabling direct connection to unregulated sensor outputs or battery terminals. |
| Output Type | Push-pull - drives LEDs, MOSFET gates, or logic inputs directly without external pull-up resistors. |
| Ambient Temperature Range | –40°C to +125°C - qualified for under-hood and powertrain applications per AEC-Q100 Grade 1. |
Pinout & Package
TLV9031QDBVRQ1 is packaged in a 5-pin SOT-23 (DBV) with 1.60 mm × 2.90 mm body size and standard "North West" pinout orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN– (Pin 4) | Inverting input | Accepts reference or feedback signal; supports rail-to-rail common-mode range including voltages below V–. |
| V+ (Pin 5) | Positive supply | Primary power rail; must be ≥1.65 V and ≤5.5 V; decoupling capacitor recommended near pin. |
| IN+ (Pin 3) | Non-inverting input | Accepts monitored signal (e.g., battery voltage); fault-tolerant to 6 V regardless of V+ level. |
| OUT (Pin 1) | Push-pull output | Drives logic loads directly; sinks ≥4 mA and sources ≥4 mA; no external pull-up required. |
| V– (Pin 2) | Negative supply / ground | Reference node for all inputs and output; connects to system ground or negative rail; thermal pad (if present) ties here. |
Key Features
| Feature | Design Value |
|---|---|
| Power-On Reset (POR) | Guarantees known output state during power ramp-up/down - eliminates spurious triggers in safety-critical startup sequences. |
| Fault-Tolerant Inputs | Withstands –0.2 V to 6 V on IN+ and IN– independent of V+ - enables direct sensing of battery terminals or unregulated supplies. |
| Rail-to-Rail Input Stage | Operates with inputs extending 0.2 V beyond V– and V+, supporting full-supply-range monitoring without external biasing. |
| Low Quiescent Current | 16 µA per channel at 25°C - sustains continuous voltage supervision in always-on domains (e.g., wake-up monitoring). |
| AEC-Q100 Grade 1 Qualification | Validated for –40°C to +125°C ambient operation with HBM ESD Level 2 and CDM Level C6 - meets automotive reliability requirements. |
Applications
| Battery Voltage Monitoring | Overvoltage Protection Circuit |
|---|---|
|
Use Scenario: Real-time monitoring of 12 V lead-acid or 48 V mild-hybrid battery voltage against programmable thresholds. IC Role / Device Role / Timing Role: Precision comparator detecting over/under-voltage conditions with <300 µV offset and 100 ns response. Use Value: Enables immediate shutdown or warning activation before cell damage occurs, leveraging fault-tolerant inputs to connect directly to battery terminals. |
Use Scenario: Guarding downstream 3.3 V MCU supply against transient overvoltage events from switching regulators or load dumps. IC Role / Device Role / Timing Role: Fast comparator triggering crowbar or shunt FET activation within 115 ns of overvoltage detection. Use Value: Push-pull output drives gate directly; rail-to-rail input accepts >5 V signals without attenuation or clamping diodes. |
| Engine Control Unit (ECU) Sensor Supervision | Infotainment System Power Sequencing |
|
Use Scenario: Validating analog sensor outputs (e.g., throttle position, coolant temp) for out-of-range or open-circuit faults. IC Role / Device Role / Timing Role: Threshold detector comparing sensor voltage to stable reference; POR ensures clean initialization at cold start. Use Value: 5 pA input bias avoids loading high-impedance sensor paths; ±0.3 mV offset maintains accuracy across temperature. |
Use Scenario: Enabling/disabling power rails in display or audio subsystems based on master enable and voltage readiness signals. IC Role / Device Role / Timing Role: Dual-threshold comparator implementing power-good sequencing with hysteresis via external resistors. Use Value: 16 µA quiescent current minimizes standby loss; push-pull output interfaces natively with FPGA or PMIC enable inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision automotive comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9031QDCKRQ1 | Same electrical specs; SC-70 (DCK) package (1.25 mm × 2.00 mm), smaller footprint and higher thermal resistance (238.5°C/W RθJA). | Better suited for space-constrained PCB layouts where thermal margin permits higher junction temperature rise. | Select TLV9031QDCKRQ1 when board area is critical and thermal derating is acceptable; verify layout cooling for sustained 125°C operation. |
| LM7321QMF/NOPB | Wider supply range (2.7 V to 36 V), higher quiescent current (1.1 mA), no POR, not AEC-Q100 qualified. | Applicable in non-automotive industrial systems requiring high-voltage input tolerance but lacking automotive qualification requirements. | Choose LM7321QMF/NOPB only for non-automotive designs needing >5.5 V operation; TLV9031QDBVRQ1 remains mandatory for AEC-Q100-compliant vehicle programs. |
Compared with TLV9031QDCKRQ1, TLV9031QDBVRQ1 offers lower thermal resistance and easier hand-soldering; compared with LM7321QMF/NOPB, it delivers 69× lower quiescent current, integrated POR, and full automotive qualification - making it the sole compliant choice for battery monitoring and ECU supervision.
Availability
TLV9031QDBVRQ1 is available at Aetrix Electronics and suitable for automotive battery management, engine control unit (ECU) sensor supervision, and infotainment power sequencing requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for TLV9031QDBVRQ1 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, designing and manufacturing analog and embedded processing chips for industrial, automotive, and consumer markets.
The TLV903x-Q1 family was developed specifically for automotive voltage monitoring and fault-detection applications, emphasizing low power, rail-to-rail input capability, fault tolerance, and AEC-Q100 Grade 1 reliability.
FAQ
What is the maximum input voltage the TLV9031QDBVRQ1 can tolerate without damage?
The TLV9031QDBVRQ1 features fault-tolerant inputs rated for –0.2 V to 6 V relative to V–, regardless of supply voltage. This allows direct connection to battery terminals or unregulated sensor outputs without external clamping, provided input current is limited to ≤10 mA per pin as specified in Absolute Maximum Ratings.
Does the TLV9031QDBVRQ1 require an external pull-up resistor on its output?
No. The TLV9031QDBVRQ1 has a push-pull output stage that actively sources and sinks current. Unlike open-drain comparators (e.g., TLV9021QDBVRQ1), it does not require an external pull-up resistor to drive logic inputs, LEDs, or MOSFET gates - simplifying design and reducing BOM count.
How does the Power-On Reset (POR) function improve system reliability in automotive applications?
The POR circuit in the TLV9031QDBVRQ1 holds the output in a defined state (low for push-pull) until the supply voltage reaches the minimum operating level (1.65 V). This prevents erratic output transitions during slow power ramps - a critical feature for avoiding false fault triggers in battery management and ECU wake-up circuits.
Can the TLV9031QDBVRQ1 operate from a 1.8 V supply while maintaining full performance?
Yes. The TLV9031QDBVRQ1 is fully specified from 1.65 V to 5.5 V. At 1.8 V, it maintains 300 µV typical input offset voltage, 100 ns propagation delay, and 16 µA quiescent current - enabling compatibility with modern ultra-low-voltage microcontrollers and sensors in automotive domain controllers.
Is the TLV9031QDBVRQ1 pin-compatible with other devices in the TLV903x-Q1 family?
Yes - TLV9031QDBVRQ1 shares the same 5-pin SOT-23 "North West" pinout (IN–, V+, IN+, OUT, V–) with TLV9030QDBVRQ1, TLV9031QDCKRQ1, and TLV9031QPWRQ1. However, note that TLV902x-Q1 variants use "South East" pinout and open-drain output, so substitution requires schematic and layout verification.
TLV9031QDBVRQ1 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:
- Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.65V ~ 5.5V
- :
- 1.5mV @ 5V
- Voltage - Input Offset (Max):
- 5pA @ 5V
- Current - Input Bias (Max):
- 100mA @ 5V
- Current - Output (Typ):
- 30µA
- Current - Quiescent (Max):
- 70dB CMRR, 95dB PSRR
- CMRR, PSRR (Typ):
- 100ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- SOT-23-5
TLV9031QDBVRQ1 FAQ
1.How can I place an order for TLV9031QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9031QDBVRQ1 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 TLV9031QDBVRQ1 reliable?
The price and inventory of TLV9031QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9031QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TLV9031QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9031QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9031QDBVRQ1?
TLV9031QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9031QDBVRQ1 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 TLV9031QDBVRQ1?
For technical support, including TLV9031QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9031QDBVRQ1 requirements.
6.How does Aetrix verify that TLV9031QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV9031QDBVRQ1 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 TLV9031QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TLV9031QDBVRQ1?
All TLV9031QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV9031QDBVRQ1, 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 TLV9031QDBVRQ1 part is unused and in its original packaging.
Return procedure for TLV9031QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV9031QDBVRQ1 Tags
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