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Texas Instruments CLVC126AQPWRG4Q1
- Part No.:
- CLVC126AQPWRG4Q1
- Manufacturer:
- Texas Instruments
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CLVC126AQPWRG4Q1.pdf
- Description:
- IC BUF NON-INVERT 3.6V 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,385
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Product details
Overview
CLVC126AQPWRG4Q1 from Texas Instruments is an automotive-qualified quadruple bus buffer gate with 3-state outputs, designed for 1.65V–3.6V VCC operation, supporting 5.5V-tolerant inputs and delivering ≤4.7ns propagation delay at 3.3V. It serves as a level-translating signal isolator in vehicle body control modules, infotainment data buses, and ADAS sensor interface subsystems.
For engineers reviewing the CLVC126AQPWRG4Q1 datasheet, CLVC126AQPWRG4Q1 pinout, CLVC126AQPWRG4Q1 application, or CLVC126AQPWRG4Q1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (–40°C to +125°C), 3-state output enable architecture, 5.5V input tolerance enabling mixed-voltage interfacing, and TSSOP-14 package compatibility with automotive PCB layout constraints.
Technical Context
This device implements four independent non-inverting buffers, each with dedicated active-high output-enable (OE) control. Each buffer operates with rail-to-rail output swing (VOL ≤ 0.45V at 1.65V, VOH ≥ VCC–0.2V) and supports bidirectional voltage translation between 3.3V and 5V logic domains without external components.
Its 3-state outputs exhibit low ground bounce (<0.8V typical VOLP) and controlled undershoot (>2V VOHV), meeting stringent automotive EMC requirements. Latch-up immunity exceeds 250mA per JESD17, and ESD robustness meets ±2000V HBM per ANSI/ESDA/JEDEC JS-001.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65V to 3.6V - Enables direct integration into 2.5V/3.3V automotive power domains without level-shifter circuitry. |
| Input Voltage Tolerance | Up to 5.5V - Allows safe connection to legacy 5V microcontrollers or sensors without clamping diodes or resistors. |
| tpd (Max) | 4.7ns at 3.3V - Supports high-speed data routing in CAN FD gateway interfaces and display timing control paths. |
| IOL/IOH | ±24mA at 3.0V - Drives up to 10 LVC loads or short traces in distributed automotive ECUs without fanout limitation. |
| Operating Temperature | –40°C to +125°C - Qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted electronic control units. |
| ESD Rating | ±2000V HBM - Meets automotive system-level ESD immunity requirements per ISO 10605 for board-level robustness. |
| Power Dissipation | 22pF Cpd (enabled), 4pF (disabled) - Minimizes dynamic power in always-on vehicle networks and reduces thermal load on PCB. |
Pinout & Package
TSSOP-14 (PW) package: 5.0mm × 6.4mm body size, 0.65mm lead pitch, 1.2mm max height, exposed thermal pad connected to GND for enhanced thermal performance in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 10, 13 | 1OE, 2OE, 3OE, 4OE | Active-high output enables - Independently control each buffer's 3-state output to prevent bus contention in multiplexed architectures. |
| 2, 5, 9, 12 | 1A, 2A, 3A, 4A | Buffer input terminals - Accept 5.5V-tolerant signals; compatible with both 3.3V and 5V upstream drivers. |
| 3, 6, 8, 11 | 1Y, 2Y, 3Y, 4Y | Non-inverting buffered outputs - Drive downstream loads with rail-to-rail swing and fast edge rates (≤10 ns/V transition). |
| 7 | GND | Ground reference - Must be connected to PCB ground plane; thermal pad requires multiple vias for thermal stability. |
| 14 | VCC | Supply pin - Requires local 0.1µF ceramic bypass capacitor placed within 2mm of pin for noise suppression in noisy automotive environments. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (–40°C to +125°C) - Certified for use in safety-critical automotive systems including powertrain and chassis control. |
| 5.5V-tolerant inputs | Operates with VI = 0–5.5V regardless of VCC - Eliminates need for external voltage translators when interfacing with legacy 5V sensors or MCUs. |
| Low ground bounce | VOLP < 0.8V typical at VCC = 3.3V - Reduces switching noise coupling into analog sections (e.g., audio amplifiers, ADC references). |
| High noise immunity | VIL = 0.35×VCC, VIH = 0.65×VCC - Ensures reliable logic detection across wide VCC range and temperature extremes. |
| Low quiescent current | ICC = 20µA max at 3.6V - Supports low-power wake-up monitoring in always-on vehicle networks (e.g., LIN gateway standby mode). |
Applications
| Body Control Module (BCM) | Infotainment Display Interface |
|---|---|
Use Scenario: Isolating I/O lines between 3.3V MCU and 5V HVAC actuator drivers while maintaining bus integrity during sleep/wake transitions. IC Role / Device Role / Timing Role: Signal-level translator and bus isolator with independent OE control per channel. Use Value: Prevents back-driving during MCU reset; enables hot-plug capability for modular HVAC subassemblies without firmware coordination. |
Use Scenario: Driving parallel RGB data lanes from a 3.3V graphics controller to a 5V display timing controller in head-unit displays. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state output for pixel clock domain bridging and bus arbitration. Use Value: Eliminates timing skew across 12-bit RGB bus; supports seamless display power sequencing via OE-controlled enable/disable. |
| Rear Camera Sensor Hub | ADAS Radar Preprocessor |
Use Scenario: Level-shifting MIPI CSI-2 D-PHY clock/data pairs from 1.8V image sensor to 3.3V SoC interface while preserving signal integrity. IC Role / Device Role / Timing Role: High-speed digital buffer with low tpd and matched trace routing support. Use Value: Maintains <100ps inter-lane skew across all four channels; withstands automotive vibration-induced signal degradation. |
Use Scenario: Buffering SPI configuration commands from 3.3V radar MCU to 5V mmWave transceiver ICs in front-end radar modules. IC Role / Device Role / Timing Role: Robust command-line driver with latch-up immunity and ESD-hardened I/O. Use Value: Guarantees SPI frame integrity under ESD events near bumper-mounted radar; eliminates field returns due to command corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC126APWRQ1 | No G4 suffix; RoHS-compliant but not automotive-qualified (no AEC-Q100 certification). | Not approved for production in safety-critical automotive ECUs; limited to industrial or consumer-grade designs. | Select only for non-automotive prototypes or cost-sensitive non-automotive applications where AEC-Q100 is not required. |
| SN74LVC126AQDRG4Q1 | SOIC-14 (D package) instead of TSSOP-14; larger footprint (8.65mm × 6mm vs. 5mm × 6.4mm), higher RθJA (127.8°C/W vs. 150.8°C/W). | Better suited for manual assembly or legacy PCBs with SOIC footprints; less optimal for high-density automotive layouts. | Choose when board space allows larger package or when reworkability and thermal margin outweigh density constraints. |
Compared with SN74LVC126APWRQ1, CLVC126AQPWRG4Q1 adds AEC-Q100 qualification and tighter parametric limits for automotive use; compared with SN74LVC126AQDRG4Q1, it offers superior board-area efficiency and improved thermal resistance in compact automotive modules.
Availability
CLVC126AQPWRG4Q1 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment display interfaces, and ADAS sensor hubs requiring stable component supply across extended product lifecycles.
Supply support for CLVC126AQPWRG4Q1 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, embedded processing, and automotive electronics, with over 50 years of innovation in high-reliability silicon solutions.
The SN74LVC126A-Q1 belongs to TI's automotive logic portfolio, engineered specifically for robust signal buffering in harsh-temperature, high-EMI vehicle environments where functional safety and long-term supply stability are mandatory.
FAQ
What is the maximum input voltage rating for CLVC126AQPWRG4Q1?
The CLVC126AQPWRG4Q1 supports input voltages up to 5.5V regardless of VCC level, enabling direct interfacing with 5V peripherals in mixed-voltage automotive systems without external protection circuitry. This specification is verified per absolute maximum ratings in the official TI datasheet SCAS763D.
Does CLVC126AQPWRG4Q1 require external pull-up or pull-down resistors on unused inputs?
Yes - all unused inputs of CLVC126AQPWRG4Q1 must be tied to either VCC or GND to prevent floating states that could cause excessive current draw or undefined logic behavior. TI recommends using pulldown resistors on OE pins during power-up to ensure outputs remain in high-impedance state until firmware initialization completes.
Is CLVC126AQPWRG4Q1 pin-compatible with standard SN74LVC126A devices?
Yes - CLVC126AQPWRG4Q1 shares identical pinout, electrical characteristics, and functional behavior with non-automotive SN74LVC126A variants in the same TSSOP-14 (PW) package. However, it includes additional AEC-Q100 stress testing, tighter parametric screening, and automotive-specific reliability documentation.
What is the thermal resistance (RθJA) of CLVC126AQPWRG4Q1 in its TSSOP-14 package?
The junction-to-ambient thermal resistance (RθJA) for CLVC126AQPWRG4Q1 in the PW (TSSOP-14) package is 150.8°C/W, as specified in TI's SCAS763D datasheet Section 4.4. This value assumes standard JEDEC 2-layer board conditions and requires proper thermal pad connection to PCB ground for optimal performance.
Can CLVC126AQPWRG4Q1 be used in CAN or LIN physical layer circuits?
No - CLVC126AQPWRG4Q1 is a general-purpose logic buffer and does not implement CAN or LIN protocol encoding, differential signaling, or bus fault protection. It may be used in CAN/LIN system *application layers* (e.g., buffering MCU GPIOs connected to CAN transceivers), but it is not a CAN/LIN transceiver or controller.
CLVC126AQPWRG4Q1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
CLVC126AQPWRG4Q1 FAQ
1.How can I place an order for CLVC126AQPWRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CLVC126AQPWRG4Q1 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 CLVC126AQPWRG4Q1 reliable?
The price and inventory of CLVC126AQPWRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLVC126AQPWRG4Q1 is usually 5 days.
3.What payment methods are accepted for CLVC126AQPWRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLVC126AQPWRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLVC126AQPWRG4Q1?
CLVC126AQPWRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLVC126AQPWRG4Q1 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 CLVC126AQPWRG4Q1?
For technical support, including CLVC126AQPWRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLVC126AQPWRG4Q1 requirements.
6.How does Aetrix verify that CLVC126AQPWRG4Q1 is sourced from the original manufacturer or authorized distributors?
All CLVC126AQPWRG4Q1 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 CLVC126AQPWRG4Q1 meets industry standards.
7.What is the process for return or replacement of CLVC126AQPWRG4Q1?
All CLVC126AQPWRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with CLVC126AQPWRG4Q1, 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 CLVC126AQPWRG4Q1 part is unused and in its original packaging.
Return procedure for CLVC126AQPWRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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