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Texas Instruments TLV9031QDCKRQ1
- Part No.:
- TLV9031QDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV9031QDCKRQ1.pdf
- Description:
- AUTOMOTIVE SINGLE LOW-VOLTAGE CO
- Quantity:
- Payment:
- Shipping:
Inventory:1,377
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Product details
Overview
TLV9031QDCKRQ1 from Texas Instruments is an automotive-grade single-channel precision comparator with push-pull output, 300 µV input offset voltage, 100 ns propagation delay, and 16 µA quiescent current per channel, operating from 1.65 V to 5.5 V supply. It features Power-On Reset (POR), rail-to-rail inputs exceeding supply rails, and fault-tolerant inputs rated to 6 V - used in HEV/EV battery monitoring and body control module voltage supervision.
For engineers reviewing the TLV9031QDCKRQ1 datasheet, TLV9031QDCKRQ1 pinout, TLV9031QDCKRQ1 application, or TLV9031QDCKRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), push-pull output drive capability (±4 mA), low-input-bias-current design (5 pA), and SC-70 package compatibility with space-constrained automotive PCB layouts.
Technical Context
The TLV9031QDCKRQ1 implements a precision bipolar input stage with 5 pA typical input bias current and 2 pF differential input capacitance, enabling high-impedance sensing in noisy automotive environments. Its internal POR circuit ensures deterministic output state until VS ≥ 1.65 V, eliminating power-up transients.
As a member of the TLV903x-Q1 series, it uses a push-pull output stage capable of sourcing/sinking ≥4 mA, supporting direct LED driving and MOSFET gate control without external pull-ups. Input common-mode range extends from (V−) − 0.2 V to (V+) + 0.2 V, allowing operation beyond supply rails for robust voltage margining.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - supports direct connection to 1.8 V, 3.3 V, and 5 V automotive subsystems without level-shifting. |
| Input Offset Voltage | ±0.3 mV (typ) - enables accurate threshold detection in battery cell voltage monitoring with <10 mV error budget. |
| Propagation Delay | 100 ns (high-to-low), 115 ns (low-to-high) - suitable for fast overvoltage/undervoltage response in safety-critical powertrain circuits. |
| Quiescent Current | 16 µA per channel - allows always-on monitoring in low-power body electronics with minimal battery drain. |
| Input Common-Mode Range | (V−) − 0.2 V to (V+) + 0.2 V - permits sensing signals above V+ (e.g., 12 V battery via resistor divider) without clamping diodes. |
| Output Drive Strength | ±4 mA (sourcing/sinking at 25°C) - directly drives LEDs, small-signal MOSFET gates, or logic inputs without external buffers. |
| ESD Rating | HBM ±2 kV, CDM ±1 kV - meets AEC-Q100 stress requirements for under-hood and infotainment ECU assembly. |
Pinout & Package
TLV9031QDCKRQ1 is packaged in a 5-pin SC-70 (DCK) with nominal body size 1.25 mm × 2.00 mm, optimized for high-density automotive PCBs. Thermal resistance RθJA = 238.5°C/W enables operation up to +125°C ambient with minimal derating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ | Non-inverting input | Accepts reference or sensed signal; supports rail-to-rail common-mode range beyond supply rails. |
| IN− | Inverting input | Accepts feedback or threshold signal; matched input impedance minimizes offset drift. |
| OUT | Push-pull output | Active-high/active-low digital output; sinks or sources ≥4 mA to drive loads directly. |
| V+ | Positive supply | Connects to main system rail (1.65–5.5 V); decoupling capacitor required near pin. |
| V− | Negative supply / GND | System ground reference; also connects to exposed thermal pad on bottom of SC-70 package. |
Key Features
| Feature | Design Value |
|---|---|
| Power-On Reset (POR) | Guarantees known output state during power ramp-up/down - prevents spurious MCU wake-up or relay chatter. |
| Fault-Tolerant Inputs | Withstands 6 V input voltage regardless of supply - eliminates need for external clamping in 12 V automotive sensor interfaces. |
| AEC-Q100 Grade 1 | Qualified for –40°C to +125°C ambient operation - validated for engine bay, transmission, and ADAS ECU placement. |
| Rail-to-Rail Input Stage | Operates with inputs 200 mV beyond V+ and V− - enables direct sensing of battery voltage or CAN transceiver bias levels. |
| Low Input Bias Current | 5 pA typical - preserves accuracy in high-impedance voltage divider networks used in battery pack monitoring. |
Applications
| HEV/EV Battery Supervision | Body Control Module (BCM) |
|---|---|
Use Scenario: Monitoring individual Li-ion cell voltages in a 400 V traction battery stack using resistor dividers. IC Role / Device Role / Timing Role: Precision comparator detecting overvoltage (>4.25 V) and undervoltage (<2.8 V) thresholds with sub-mV accuracy. Use Value: Enables cell balancing decisions with ±0.3 mV offset error, reducing false triggers and extending battery life. | Use Scenario: Detecting door-open status via microswitch closure across a 12 V line with noise immunity. IC Role / Device Role / Timing Role: Fault-tolerant comparator interfacing mechanical switch to 3.3 V microcontroller GPIO. Use Value: 6 V input tolerance eliminates external TVS/clamp diodes; 100 ns response ensures immediate door latch reporting. |
| Infotainment System Power Sequencing | Automotive Lighting Control |
Use Scenario: Validating stable 1.8 V core supply before enabling display driver ICs in digital cluster. IC Role / Device Role / Timing Role: Supply monitor with POR ensuring clean enable signal generation during cold crank. Use Value: POR guarantees output remains low until VS ≥ 1.65 V, preventing partial initialization of downstream logic. | Use Scenario: Driving amber turn-signal LEDs directly from comparator output in exterior lighting module. IC Role / Device Role / Timing Role: Push-pull output stage sourcing 4 mA to illuminate LEDs without external transistor. Use Value: Eliminates BJT/MOSFET buffer, reducing BOM count and PCB area in cost-sensitive lighting designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision automotive comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9031DBVRQ1 | SOT-23-5 package (1.60 mm × 2.90 mm); higher RθJA (223.7°C/W) than DCK. | Larger footprint; less suitable for ultra-dense layouts but easier hand-soldering and rework. | Select when board assembly process favors SOT-23 over SC-70 or thermal margin exceeds 20°C. |
| LM7321QMA/NOPB | Wider supply range (2.7–32 V); no POR; higher quiescent current (1.1 mA); SOIC-8 package. | Not AEC-Q100 Grade 1 qualified; requires external POR circuitry for safe startup behavior. | Choose only if >5.5 V supply operation is mandatory and thermal/power constraints permit higher IQ. |
Compared with TLV9031DBVRQ1 and LM7321QMA/NOPB, TLV9031QDCKRQ1 delivers superior power efficiency (16 µA vs. 1.1 mA), guaranteed startup behavior (integrated POR), and smallest footprint - making it optimal for space- and power-constrained AEC-Q100 systems requiring precise, fast, and robust voltage monitoring.
Availability
TLV9031QDCKRQ1 is available at Aetrix Electronics and suitable for HEV/EV battery management, body control modules, infotainment power sequencing, and automotive lighting control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV9031QDCKRQ1 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 automotive, industrial, and personal electronics markets.
The TLV903x-Q1 product line was designed specifically for AEC-Q100-compliant voltage monitoring and signal conditioning in harsh automotive environments - emphasizing low power, precision, fault tolerance, and reliable startup behavior.
FAQ
What is the maximum input voltage the TLV9031QDCKRQ1 can tolerate without damage?
The TLV9031QDCKRQ1 supports fault-tolerant inputs rated to 6 V relative to V−, regardless of supply voltage. This allows direct interface with 12 V automotive signals via resistor dividers without external protection components. Absolute maximum rating is –0.3 V to +6 V on IN+ and IN− pins, per TI SNOSDA9E datasheet Section 5.1.
Does the TLV9031QDCKRQ1 have built-in Power-On Reset (POR) functionality?
Yes, the TLV9031QDCKRQ1 integrates a dedicated Power-On Reset circuit that holds the output in a known state (low for push-pull configuration) until the supply voltage reaches the minimum operating threshold of 1.65 V. This prevents output glitches during power ramp-up or brownout conditions, as confirmed in Section 1 Features and Section 3 Description of the datasheet.
What is the output configuration of the TLV9031QDCKRQ1, and how does it differ from the TLV9021QDCKRQ1?
The TLV9031QDCKRQ1 features a push-pull output stage capable of both sourcing and sinking current (≥4 mA), while the TLV9021QDCKRQ1 uses an open-drain output requiring an external pull-up resistor. This makes TLV9031QDCKRQ1 suitable for driving LEDs or logic inputs directly, whereas TLV9021QDCKRQ1 is preferred for wired-OR bus configurations or level translation.
Is the TLV9031QDCKRQ1 qualified for automotive applications, and what AEC-Q100 grade does it meet?
Yes, the TLV9031QDCKRQ1 is AEC-Q100 qualified for automotive use with Device Temperature Grade 1, supporting ambient operating temperatures from –40°C to +125°C. It also meets HBM ESD Level 2 (±2 kV) and CDM Level C6 (±1 kV), as documented in Section 1 Features of the official datasheet.
What package type is used for the TLV9031QDCKRQ1, and what are its key mechanical dimensions?
The TLV9031QDCKRQ1 uses the SC-70 (DCK) package with a nominal body size of 1.25 mm × 2.00 mm and 0.65 mm pitch. It has five terminals, with the exposed thermal pad on the underside electrically connected to V−, as specified in Section 4.1 Pin Functions and Mechanical Information of the datasheet.
TLV9031QDCKRQ1 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, 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
- :
- SC-70-5
TLV9031QDCKRQ1 FAQ
1.How can I place an order for TLV9031QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9031QDCKRQ1 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 TLV9031QDCKRQ1 reliable?
The price and inventory of TLV9031QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9031QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for TLV9031QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9031QDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9031QDCKRQ1?
TLV9031QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9031QDCKRQ1 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 TLV9031QDCKRQ1?
For technical support, including TLV9031QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9031QDCKRQ1 requirements.
6.How does Aetrix verify that TLV9031QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV9031QDCKRQ1 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 TLV9031QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of TLV9031QDCKRQ1?
All TLV9031QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV9031QDCKRQ1, 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 TLV9031QDCKRQ1 part is unused and in its original packaging.
Return procedure for TLV9031QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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