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Texas Instruments TLV9031DCKR
- Part No.:
- TLV9031DCKR
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV9031DCKR.pdf
- Description:
- SINGLE LOW-VOLTAGE COMPARATOR WI
- Quantity:
- Payment:
- Shipping:
Inventory:8,960
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Product details
Overview
TLV9031DCKR from Texas Instruments is a single-channel precision comparator with push-pull output, rail-to-rail input (fault-tolerant to 6 V), 300 µV max input offset voltage, 100 ns propagation delay, and 16 µA quiescent current per channel. It operates from 1.65 V to 5.5 V and supports industrial temperature range (–40°C to +125°C), enabling use in motor drive voltage monitoring and factory automation sensor interfaces.
For engineers reviewing the TLV9031DCKR datasheet, TLV9031DCKR pinout, TLV9031DCKR application, or TLV9031DCKR equivalent, key selection considerations include its push-pull output drive capability (±4 mA), fault-tolerant input stage, low-power precision performance, and SC-70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TLV9031DCKR implements a high-gain, low-offset comparator core with internal ESD clamps enabling ±6 V input overvoltage tolerance without phase inversion or damage. Its push-pull output stage provides active high/low drive-sourcing and sinking up to 4 mA-eliminating external pull-up resistors required by open-drain variants.
Designed for precision voltage monitoring in electrically noisy environments, it features 75 dB PSRR (push-pull), 60 dB CMRR at 1.8 V, and <5 pA input bias current. The device maintains stable operation across 1.65–5.5 V supply and full –40°C to +125°C ambient range without performance degradation.
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 logic and analog domains |
| Input Offset Voltage | ±0.3 mV (typ) - enables accurate threshold detection in battery voltage supervision and current-sense circuits |
| Propagation Delay | 100 ns (high-to-low, 5 V supply) - suitable for real-time overvoltage/undervoltage response in motor control safety loops |
| Quiescent Current | 16 µA per channel - allows always-on monitoring in battery-powered building automation nodes |
| Input Common-Mode Range | (V−) − 0.2 V to (V+) + 0.2 V - supports rail-to-rail sensing and fault-tolerant inputs up to 6 V beyond V− |
| Output Drive Capability | ±4 mA (push-pull) - directly drives LEDs, MOSFET gates, or logic inputs without external buffers |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial motor drive environments |
Pinout & Package
TLV9031DCKR is housed in a 5-pin SC-70 (DCK) package measuring 1.25 mm × 2.00 mm, optimized for high-density PCB layouts. Pinout follows the TLV90x1 standard North West configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Push-pull output - actively drives high or low; no external pull-up required |
| 2 | V− | Negative supply terminal - also connects to exposed thermal pad in compatible packages (not applicable to DCK) |
| 3 | IN− | Inverting input - accepts signals up to 6 V above V− without damage or inversion |
| 4 | IN+ | Non-inverting input - matched with IN− for precision differential threshold comparison |
| 5 | V+ | Positive supply terminal - supplies internal bias and output stage; decoupling recommended |
Key Features
| Feature | Design Value |
|---|---|
| Fault-tolerant inputs | Withstands up to 6 V applied to IN+ or IN− regardless of V+ or V−, preventing latch-up or phase reversal |
| Push-pull output | Eliminates need for external pull-up resistors and enables direct interface with CMOS/TTL loads |
| Low input bias current | 5 pA typical - minimizes error in high-impedance voltage divider or sensor feedback networks |
| Rail-to-rail input common-mode range | Extends usable input range beyond supply rails, simplifying level-shifting in multi-supply systems |
| Industrial temperature rating | Specified from –40°C to +125°C - ensures reliability in motor drives, PLC I/O modules, and HVAC controllers |
Applications
| Motor Drive Protection | Factory Automation Sensor Interface |
|---|---|
|
Use Scenario: Real-time overcurrent detection using shunt voltage comparison in BLDC inverter half-bridges. IC Role / Device Role / Timing Role: Precision comparator generating immediate shutdown signal upon current threshold breach. Use Value: 100 ns propagation delay enables sub-microsecond fault response, preserving IGBT/MOSFET integrity during short-circuit events. |
Use Scenario: Analog sensor signal conditioning in programmable logic controller (PLC) input modules. IC Role / Device Role / Timing Role: Threshold detector converting 4–20 mA or 0–10 V transducer outputs into digital status flags. Use Value: 300 µV offset voltage ensures <0.01% full-scale error in 12-bit system-level accuracy requirements. |
| Appliance Power Sequencing | Automotive Infotainment Voltage Monitoring |
|
Use Scenario: Controlled power-up sequencing of MCU, display, and audio subsystems in smart home appliances. IC Role / Device Role / Timing Role: Voltage supervisor verifying 3.3 V and 1.8 V rails before releasing reset to downstream ICs. Use Value: 16 µA quiescent current allows continuous monitoring without compromising standby battery life in cordless devices. |
Use Scenario: Battery backup voltage validation and main supply brownout detection in instrument cluster displays. IC Role / Device Role / Timing Role: Dual-threshold comparator implementing hysteresis-based undervoltage lockout (UVLO). Use Value: Fault-tolerant inputs withstand load-dump transients up to 6 V, eliminating external clamping diodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9031DBVR | Same electrical specs; SOT-23-5 (DBV) package (1.60 mm × 2.90 mm) vs. SC-70-5 (1.25 mm × 2.00 mm) | Larger footprint but higher thermal mass and wider availability in tape-and-reel formats | Select TLV9031DBVR when board layout allows larger package or when sourcing flexibility across distributors is prioritized |
| LMV331M5X/NOPB | Higher 350 µV max offset, 300 ns propagation delay, 80 µA IQ, open-drain only, no fault-tolerant inputs | Requires external pull-up; unsuitable for 6 V overvoltage or ultra-low-power always-on monitoring | Choose LMV331M5X/NOPB only for cost-sensitive, non-fault-tolerant applications where speed and power are secondary |
Compared with TLV9031DBVR, TLV9031DCKR offers 35% smaller PCB area and identical performance; versus LMV331M5X/NOPB, it delivers 3× faster response, 5× lower power, and robust 6 V input fault tolerance-critical for industrial and automotive edge nodes.
Availability
TLV9031DCKR is available at Aetrix Electronics and suitable for motor drive protection, factory automation sensor interfaces, and appliance power sequencing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV9031DCKR 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 leader specializing in analog and embedded processing technologies, with decades of expertise in precision signal chain components.
The TLV903x family was designed specifically for low-power, high-accuracy voltage monitoring in harsh industrial and automotive environments-emphasizing fault tolerance, rail-to-rail operation, and minimal quiescent current.
FAQ
What is the maximum input voltage tolerance for TLV9031DCKR?
The TLV9031DCKR supports input voltages up to 6 V above V− on both IN+ and IN− pins, independent of V+ supply level. This fault-tolerant feature prevents damage and output phase inversion during transient overvoltage events, making it suitable for industrial sensor front-ends where input spikes are common. This specification is verified across the full –40°C to +125°C operating range.
Does TLV9031DCKR require an external pull-up resistor on its output?
No, TLV9031DCKR does not require an external pull-up resistor because it features a true push-pull output stage capable of actively sourcing and sinking current. It can drive CMOS, TTL, or LED loads directly-unlike open-drain comparators such as the TLV9021. This eliminates BOM count and layout area while improving rise/fall time consistency.
What is the typical input offset voltage drift over temperature for TLV9031DCKR?
The TLV9031DCKR exhibits ±0.5 µV/°C typical input offset voltage drift over the full –40°C to +125°C range. This low drift, combined with ±0.3 mV initial offset, ensures stable threshold accuracy in temperature-varying applications like motor winding temperature monitoring or battery cell voltage balancing circuits.
Can TLV9031DCKR operate from a 1.8 V supply?
Yes, TLV9031DCKR is fully specified to operate from 1.65 V to 5.5 V supply. At 1.8 V, it maintains 100 ns propagation delay, 300 µV max offset, and 16 µA quiescent current-enabling direct integration into ultra-low-voltage IoT sensor nodes and energy-harvesting systems without level-shifting circuitry.
Is TLV9031DCKR pin-compatible with other comparators in the TLV90xx family?
TLV9031DCKR uses the TLV90x1 pinout (IN− on pin 3, IN+ on pin 4, OUT on pin 1), which differs from the TLV90x0 pinout (OUT on pin 4). It is not pin-compatible with TLV9021DCKR or TLV9030DCKR. Board redesign is required when substituting between x0 and x1 variants-even within the same package-due to swapped IN+ and OUT positions.
TLV9031DCKR 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:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SC-70-5
TLV9031DCKR FAQ
1.How can I place an order for TLV9031DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV9031DCKR 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 TLV9031DCKR reliable?
The price and inventory of TLV9031DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV9031DCKR is usually 5 days.
3.What payment methods are accepted for TLV9031DCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV9031DCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV9031DCKR?
TLV9031DCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV9031DCKR 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 TLV9031DCKR?
For technical support, including TLV9031DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV9031DCKR requirements.
6.How does Aetrix verify that TLV9031DCKR is sourced from the original manufacturer or authorized distributors?
All TLV9031DCKR 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 TLV9031DCKR meets industry standards.
7.What is the process for return or replacement of TLV9031DCKR?
All TLV9031DCKR units undergo pre-shipment inspection (PSI). If there is an issue with TLV9031DCKR, 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 TLV9031DCKR part is unused and in its original packaging.
Return procedure for TLV9031DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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