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Texas Instruments TLV3231QDCKRQ1
- Part No.:
- TLV3231QDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Comparators
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
TLV3231QDCKRQ1.pdf
- Description:
- AEC-Q100-QUALIFIED 20NS SINGLE-C
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
TLV3231QDCKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive high-speed comparator with rail-to-rail input, 20ns propagation delay, ±4mV max input offset voltage, 200µA per channel supply current, and push-pull output-used in low-side current sensing for on-board chargers and instrument clusters.
For engineers reviewing the TLV3231QDCKRQ1 datasheet, TLV3231QDCKRQ1 pinout, TLV3231QDCKRQ1 application, or TLV3231QDCKRQ1 equivalent, key selection criteria include propagation delay vs. power trade-off, internal hysteresis (1.55mV), Power-On Reset behavior, and SC-70 package compatibility with space-constrained automotive PCB layouts.
Technical Context
The TLV3231QDCKRQ1 implements a micropower, single-channel comparator architecture with internal Power-On Reset (POR) that holds output low during supply ramp-up until V+ exceeds 2V for ≥4µs. Its push-pull output drives capacitive loads (e.g., MOSFET gates) without external pull-ups and supports operation from 2.7V to 5.5V supply.
Input stage features rail-to-rail common-mode range extending 300mV beyond either supply rail, internal ESD clamps (HBM ±2kV, CDM ±1kV), and 1.55mV typical hysteresis-enabling robust noise immunity in noisy automotive environments while maintaining sub-25ns switching at 50mV overdrive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 20ns at 50mV overdrive-enables detection of fast transients in OBC fault monitoring and eCall system wake-up triggers. |
| Input offset voltage | ±4mV max at 25°C-supports accurate threshold detection in shunt-based current sensing with ≤1% error at 100mV reference. |
| Supply current | 200µA per channel-allows always-on monitoring in battery-sensitive telematics modules without compromising runtime. |
| Hysteresis | 1.55mV typical-reduces false triggering from EMI-induced noise near trip points in instrument cluster warning circuits. |
| Input voltage range | (V−) − 0.3V to (V+) + 0.3V-permits direct interface with sensors operating beyond supply rails, such as thermistor networks referenced to chassis ground. |
| Output type | Push-pull-eliminates need for external pull-up resistor, simplifies PCB layout, and enables direct LED drive or MOSFET gate control in head unit backlight dimming. |
| Operating temperature | −40°C to +125°C ambient-meets automotive Grade 1 requirement for under-hood and infotainment module deployment. |
Pinout & Package
TLV3231QDCKRQ1 is packaged in SC-70 (DCK), a 5-pin surface-mount package measuring 1.25mm × 2.00mm with standard "North West" pinout orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Output | Push-pull digital output capable of sourcing/sinking ≥2mA-drives logic inputs, LEDs, or MOSFET gates directly without external components. |
| V− (Pin 2) | Negative supply | Reference node for single-supply (GND) or split-supply operation; output swings to V− when low. |
| IN+ (Pin 3) | Non-inverting input | Differential input accepting signals up to 300mV beyond rails-used for threshold comparison against reference or sensed voltage. |
| IN− (Pin 4) | Inverting input | Differential input with identical rail-to-rail range-paired with IN+ to configure inverting/non-inverting comparator topologies. |
| V+ (Pin 5) | Positive supply | Primary power rail (2.7V–5.5V); POR circuit activates when V+ crosses 2V, holding OUT low until stable operation begins. |
Key Features
| Feature | Design Value |
|---|---|
| Power-On Reset (POR) | Holds output low during power-up/down until V+ stabilizes above 2V for ≥4µs-prevents false alerts in safety-critical eCall activation circuits. |
| Rail-to-rail input | Accepts input voltages 300mV beyond V+ or V−-enables direct connection to sensors with wide dynamic range, such as battery voltage monitors. |
| Internal hysteresis | 1.55mV typical-reduces sensitivity to high-frequency noise in instrument cluster analog signal paths without requiring external feedback resistors. |
| AEC-Q100 qualification | Grade 1 (−40°C to +125°C), HBM H1C, CDM C6-validates reliability for automotive powertrain, body electronics, and ADAS subsystems. |
| Low quiescent current | 200µA per channel at 5V-supports always-on diagnostic functions in 12V battery-powered telematics modules with <1mW total dissipation. |
Applications
| Low-Side Current Sensing | Automotive Instrument Cluster |
|---|---|
Use Scenario: Monitoring motor phase current in wireless charging pad using shunt resistor and op-amp front-end. IC Role / Device Role / Timing Role: High-speed comparator detecting overcurrent condition with <25ns response to trigger MCU interrupt or disable gate driver. Use Value: 20ns propagation delay ensures timely fault shutdown before IGBT thermal runaway; push-pull output directly interfaces with MCU GPIO without level-shifting. | Use Scenario: Detecting critical coolant temperature thresholds via NTC sensor network feeding into dashboard warning logic. IC Role / Device Role / Timing Role: Threshold detector comparing amplified sensor voltage against fixed reference to assert "overheat" flag. Use Value: ±4mV input offset enables ≤1°C temperature resolution at 100mV/°C gain; internal hysteresis prevents flickering warning icons due to sensor noise. |
| Telematics eCall Activation | On-Board Charger (OBC) Fault Detection |
Use Scenario: Initiating emergency call sequence upon crash detection by monitoring airbag controller SPI bus activity loss. IC Role / Device Role / Timing Role: Edge detector comparing bus idle voltage against reference to identify communication failure within 50µs. Use Value: 200µA supply current allows continuous monitoring in sleep mode; POR ensures known state after vehicle wake-up from ignition-off. | Use Scenario: Real-time monitoring of DC-link voltage ripple to detect IGBT short-circuit or capacitor degradation in bidirectional OBC. IC Role / Device Role / Timing Role: Fast comparator capturing >100kHz transient spikes exceeding safe voltage envelope. Use Value: 75MHz toggle frequency and 2.5ns rise/fall times enable reliable capture of high-frequency fault signatures; rail-to-rail input accommodates full 0–400V scaled sense range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH7322MK/NOPB | Higher speed (6.5ns), dual-channel, 3.3mA/ch supply current, no POR, SO-8 package | Used in RF test equipment where speed dominates power; unsuitable for battery-backed automotive modules | Select when nanosecond-level timing is mandatory and power budget allows >15× higher current draw. |
| TLV3501QDRQ1 | 2.5ns propagation delay, 2.9mA/ch, no internal hysteresis, same SC-70 package, AEC-Q100 Grade 1 | Requires external hysteresis network for noise immunity; preferred in ultra-fast ADC clock conditioning | Choose for applications needing <3ns delay and willing to add external resistors for stability. |
Compared with LMH7322MK/NOPB and TLV3501QDRQ1, TLV3231QDCKRQ1 delivers optimal balance of speed (20ns), ultra-low power (200µA), integrated POR, and built-in hysteresis-making it uniquely suited for cost- and space-constrained automotive subsystems requiring reliable, self-contained threshold detection.
Availability
TLV3231QDCKRQ1 is available at Aetrix Electronics and suitable for automotive telematics, instrument cluster, and on-board charger designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV3231QDCKRQ1 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 automotive-grade product development and AEC-Q100 validation expertise.
The TLV323x-Q1 product line was designed specifically for automotive signal-conditioning applications demanding high speed, low power, and functional safety readiness-including eCall, battery management, and ADAS sensor interfaces.
FAQ
What is the maximum propagation delay specification for TLV3231QDCKRQ1 across its full operating temperature range?
The TLV3231QDCKRQ1 has a maximum propagation delay of 30ns at 50mV overdrive across the full −40°C to +125°C ambient temperature range, as specified in Section 5.6 of the SNOSDK2 datasheet. This value accounts for worst-case process, voltage, and temperature (PVT) conditions and ensures deterministic timing behavior in automotive safety-critical monitoring circuits.
Does TLV3231QDCKRQ1 require external hysteresis for stable operation in noisy automotive environments?
No, TLV3231QDCKRQ1 includes 1.55mV typical internal hysteresis, which reduces susceptibility to noise-induced chatter near switching thresholds. While external hysteresis can be added for enhanced immunity, the internal hysteresis is sufficient for most automotive applications including low-side current sensing and temperature threshold detection per the device's characterization data.
Can TLV3231QDCKRQ1 operate from a single 3.3V supply in automotive head unit designs?
Yes, TLV3231QDCKRQ1 supports single-supply operation from 2.7V to 5.5V. When powered from 3.3V with V− tied to GND, its rail-to-rail input accepts signals from 0V to 3.6V, and its push-pull output swings from near-GND to near-3.3V-enabling direct interfacing with 3.3V MCUs and analog front-ends in head unit audio and display subsystems.
How does the Power-On Reset (POR) function behave in TLV3231QDCKRQ1 during cold-cranking conditions?
During cold-cranking, TLV3231QDCKRQ1's POR circuit holds the OUT pin low until V+ rises above 2V and remains there for ≥4µs, regardless of input state. This ensures no spurious outputs occur during slow or noisy battery voltage ramp-up-a critical feature for preventing false fault assertions in engine control and OBC startup sequences.
Is TLV3231QDCKRQ1 compatible with standard SC-70 reflow profiles, and what is its MSL rating?
Yes, TLV3231QDCKRQ1 is rated MSL Level-1 (260°C peak) per JEDEC J-STD-020, supporting standard lead-free reflow processes without floor-life restrictions. Its SC-70 (DCK) package is RoHS-compliant and green, with Sn lead finish-ensuring compatibility with automated SMT assembly lines used in automotive electronics manufacturing.
TLV3231QDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- TLV323x-Q1
- 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 (±):
- 2.7V ~ 5.5V
- :
- 4mV @ 5V
- Voltage - Input Offset (Max):
- 0.001µA @ 5V
- Current - Input Bias (Max):
- 50mA @ 5V
- Current - Output (Typ):
- 250µA
- Current - Quiescent (Max):
- 82dB CMRR, 92dB PSRR
- CMRR, PSRR (Typ):
- 30ns
- Propagation Delay (Max):
- 2mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount
- :
- SC-70-5
TLV3231QDCKRQ1 FAQ
1.How can I place an order for TLV3231QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV3231QDCKRQ1 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 TLV3231QDCKRQ1 reliable?
The price and inventory of TLV3231QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV3231QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for TLV3231QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV3231QDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV3231QDCKRQ1?
TLV3231QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV3231QDCKRQ1 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 TLV3231QDCKRQ1?
For technical support, including TLV3231QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV3231QDCKRQ1 requirements.
6.How does Aetrix verify that TLV3231QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All TLV3231QDCKRQ1 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 TLV3231QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of TLV3231QDCKRQ1?
All TLV3231QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TLV3231QDCKRQ1, 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 TLV3231QDCKRQ1 part is unused and in its original packaging.
Return procedure for TLV3231QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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