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Nexperia USA Inc. HEF4049BT-Q100J
- Part No.:
- HEF4049BT-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HEF4049BT-Q100J.pdf
- Description:
- IC INVERTER 6CH 1-INP 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,329
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Product details
Overview
HEF4049BT-Q100 from Nexperia is a hex inverting buffer IC with overvoltage-tolerant inputs rated to 15.0 V, designed for HIGH-to-LOW level shifting in automotive systems. It operates across 3.0 V to 15.0 V supply, delivers ±24 mA sink/source drive at 15 V, and is qualified to AEC-Q100 Grade 3 (−40 °C to +85 °C) for under-hood control modules.
For engineers reviewing the HEF4049BT-Q100 datasheet, HEF4049BT-Q100 pinout, HEF4049BT-Q100 application, or HEF4049BT-Q100 equivalent, this device supports TTL/DTL interface translation, LOCMOS-to-TTL conversion, and robust logic-level bridging where input overvoltage resilience and automotive-grade reliability are mandatory.
Technical Context
The HEF4049BT-Q100 implements six independent CMOS inverter gates with symmetrical output drive and fully static operation. Its input protection circuit enables clamping up to 15.0 V independent of VDD, allowing direct interfacing with higher-voltage logic domains without external components.
Propagation delay ranges from 9 ns (15 V, CL = 50 pF) to 70 ns (5 V, CL = 50 pF), with output transition times as low as 2 ns (15 V). Static characteristics include VIH = 11.0 V and VIL = 4.0 V at VDD = 15 V, ensuring noise margins >4 V in high-noise automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 15.0 V - Enables single-supply operation across 5 V, 10 V, and 15 V logic domains without level shifters. |
| Input Overvoltage Tolerance | Up to 15.0 V - Allows direct connection to 12 V automotive signals while powered from 5 V microcontrollers. |
| Output Drive (IOL @ VDD=15 V) | 24.0 mA - Sinks sufficient current to drive two standard TTL loads simultaneously. |
| Propagation Delay (tPHL) | 12 ns typical at 15 V, CL = 50 pF - Supports >40 MHz toggle rates in critical timing paths. |
| Ambient Temperature Range | −40 °C to +85 °C - Qualified per AEC-Q100 Grade 3 for engine control units and body electronics. |
| ESD Protection (HBM) | >2000 V - Meets ANSI/ESDA/JEDEC JS-001 Class 2, reducing board-level ESD hardening requirements. |
| Static Power Dissipation | 120 μA max at 15 V - Enables ultra-low quiescent current in always-on vehicle subsystems. |
Pinout & Package
HEF4049BT-Q100 is housed in a plastic small outline package (SO16) per SOT109-1 standard: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Positive supply rail | Accepts 3.0–15.0 V; powers all six inverters and internal protection circuitry. |
| VSS (Pin 8) | Ground reference | Common return path for all inputs, outputs, and substrate biasing. |
| 1A–6A (Pins 3,5,7,9,11,14) | Input terminals | Overvoltage-tolerant CMOS inputs; accept −0.5 V to +18 V regardless of VDD. |
| 1Y–6Y (Pins 2,4,6,10,12,15) | Inverted output terminals | Push-pull CMOS outputs with symmetrical VOH/VOL and fan-out capability to TTL/DTL. |
| n.c. (Pins 13,16) | No-connect terminals | Internally unconnected; must remain floating or tied to VSS/VDD per PCB layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 3 qualification | Validated for automotive use from −40 °C to +85 °C ambient, including thermal cycling and humidity testing. |
| Symmetrical output characteristics | Matched rise/fall times and drive strength ensure clean signal edges in bidirectional bus applications. |
| Standardized JEDEC JESD13-B compliance | Ensures interoperability with legacy CMOS and TTL logic families across multiple vendors. |
| High noise immunity | Input hysteresis and >4 V noise margin at 15 V supply suppress false triggering in electrically noisy chassis environments. |
| Low dynamic power dissipation | PD = 35000 × fi + Σ(fo × CL) × VDD² at 15 V - Enables efficient operation in battery-sensitive modules. |
Applications
| Engine Control Unit Interface | Body Control Module Signal Translation |
|---|---|
|
Use Scenario: Interfacing 12 V sensor outputs (e.g., throttle position, knock sensor) to a 5 V MCU ADC or GPIO. IC Role / Device Role / Timing Role: Level-shifting inverter buffer isolating high-voltage analog front-end signals from low-voltage digital domain. Use Value: Eliminates need for discrete resistor dividers or dedicated level translators, reducing BOM count and PCB area. |
Use Scenario: Converting LOCMOS outputs from door-lock ASICs to drive legacy DTL-based solenoid drivers. IC Role / Device Role / Timing Role: Logic-level translator enabling backward compatibility between modern CMOS controllers and older discrete logic. Use Value: Maintains signal integrity across voltage domains while supporting guaranteed fan-out of 16 to 74L logic. |
| Automotive Lighting Control | Infotainment System Power Sequencing |
|
Use Scenario: Driving high-current LED driver enable lines from low-voltage microcontroller pins. IC Role / Device Role / Timing Role: Inverting buffer providing inverted logic polarity and 24 mA sink capability for active-low enable inputs. Use Value: Directly interfaces MCU GPIO to LED driver ICs requiring >10 mA enable current, avoiding external transistors. |
Use Scenario: Generating synchronized power-up reset sequences for multi-rail infotainment SoCs. IC Role / Device Role / Timing Role: Delay-controlled inverter stage introducing precise propagation delay to stagger voltage rail activation. Use Value: Uses inherent tPHL/tPLH variation (±5 ns over temperature) to create deterministic sequencing without external RC networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC04QPWRQ1 | Lower overvoltage tolerance (7 V max); no 15 V input rating; 6 V absolute max VDD. | Restricted to 5 V-only systems; unsuitable for 12 V signal interfacing without external clamping. | Select only when full 15 V input tolerance is unnecessary and cost is primary constraint. |
| MC74VHC04DT | Wider VDD range (2–5.5 V); no AEC-Q100 qualification; HBM ESD = 2 kV (same rating but unqualified). | Limited to non-automotive industrial use; lacks automotive lifecycle and test documentation traceability. | Choose for commercial-grade applications where AEC-Q100 documentation and extended temperature validation are not required. |
Compared with SN74HC04QPWRQ1 and MC74VHC04DT, the HEF4049BT-Q100 uniquely combines 15 V input tolerance, AEC-Q100 Grade 3 qualification, and 15 V supply operation-making it the only option for direct 12 V automotive signal conditioning without external protection.
Availability
HEF4049BT-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, lighting control systems, and infotainment power sequencing requiring stable component supply across automotive production lifecycles.
Supply support for HEF4049BT-Q100 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
Nexperia is a global semiconductor expert specializing in essential semiconductors for automotive, industrial, and consumer electronics, with leadership in logic, MOSFETs, and ESD protection devices.
The HEF4049B-Q100 belongs to Nexperia's automotive-qualified logic family, engineered specifically for robust signal conditioning and level translation in harsh-temperature, high-reliability vehicle subsystems.
FAQ
Can HEF4049BT-Q100 operate with VDD = 3.3 V while accepting 5 V inputs?
Yes. The device's overvoltage-tolerant inputs function correctly at up to 15.0 V regardless of VDD setting. At VDD = 3.3 V, inputs up to 5 V are safely clamped and translated, with VIH = 2.2 V and VIL = 0.9 V per static characterization data - ensuring reliable logic recognition.
What is the maximum capacitive load this device can drive without signal degradation?
The HEF4049BT-Q100 is characterized up to 50 pF load capacitance in dynamic testing, with tPHL = 12 ns (typical) at 15 V. For loads exceeding 50 pF, propagation delay increases linearly per extrapolation formulas (e.g., +0.05 ns/pF at 15 V), and output transition time rises - limiting practical use to ≤100 pF for sub-20 ns timing budgets.
Does this part support hot-swap or live-insertion into a powered system?
No. Although inputs tolerate 15 V, the device lacks Ioff (power-off protection) or live-insertion features. Applying input voltage before VDD risks undefined output states and potential latch-up. Power sequencing must ensure VDD is established before applying input signals.
How does its fan-out capability compare to standard TTL buffers?
At VDD = 5 V, HEF4049BT-Q100 guarantees fan-out of 2 to standard TTL, 9 to 74LS, and 16 to 74L - exceeding standard TTL buffers due to higher output drive (±3.5 mA at 5 V) and lower input current (±0.3 μA), enabling direct driving of multiple legacy logic inputs without buffers.
HEF4049BT-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- -
- Voltage - Supply:
- 3V ~ 15V
- Current - Quiescent (Max):
- 16 µA
- Current - Output High, Low:
- 3mA, 20mA
- Input Logic Level - Low:
- 1.5V ~ 4V
- Input Logic Level - High:
- 3.5V ~ 11V
- Max Propagation Delay @ V, Max CL:
- 40ns @ 15V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
HEF4049BT-Q100J FAQ
1.How can I place an order for HEF4049BT-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4049BT-Q100J 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 HEF4049BT-Q100J reliable?
The price and inventory of HEF4049BT-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4049BT-Q100J is usually 5 days.
3.What payment methods are accepted for HEF4049BT-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4049BT-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4049BT-Q100J?
HEF4049BT-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4049BT-Q100J 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 HEF4049BT-Q100J?
For technical support, including HEF4049BT-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4049BT-Q100J requirements.
6.How does Aetrix verify that HEF4049BT-Q100J is sourced from the original manufacturer or authorized distributors?
All HEF4049BT-Q100J 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 HEF4049BT-Q100J meets industry standards.
7.What is the process for return or replacement of HEF4049BT-Q100J?
All HEF4049BT-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with HEF4049BT-Q100J, 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 HEF4049BT-Q100J part is unused and in its original packaging.
Return procedure for HEF4049BT-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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