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Diodes Incorporated 74LVC1G17QW5-7
- Part No.:
- 74LVC1G17QW5-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
74LVC1G17QW5-7.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:3,133
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Product details
Overview
74LVC1G17QW5-7 from Diodes Incorporated is an automotive-grade single Schmitt trigger buffer in SOT25 package, performing non-inverting logic buffering with hysteresis (ΔVT = 0.56–1.11 V at VCC = 3.0–5.5 V), ±24 mA output drive at 3.0 V, and 1.65–5.5 V supply operation. It enables voltage-level shifting and signal conditioning in AEC-Q100-compliant engine control units.
For engineers reviewing the 74LVC1G17QW5-7 datasheet, 74LVC1G17QW5-7 pinout, 74LVC1G17QW5-7 application, or 74LVC1G17QW5-7 equivalent, key selection criteria include Schmitt input hysteresis width, IOFF-enabled partial power-down isolation, 5.5 V-tolerant inputs in mixed-voltage systems, and Grade 1 (−40°C to +125°C) automotive qualification.
Technical Context
This device implements a positive Boolean function (A = Y) using CMOS Schmitt-trigger input circuitry to reject noise on slow-rising/falling signals. Its hysteresis threshold (VT+ and VT−) varies with VCC - e.g., VT+ = 1.50–1.87 V and VT− = 0.84–1.16 V at 3.0 V - enabling robust edge detection across 1.65–5.5 V operation.
The IOFF feature disables output leakage (<±2 μA) during partial power-down by disconnecting I/O paths when VCC = 0 V, preventing back-current flow. Input tolerance up to 5.5 V regardless of VCC allows interfacing with higher-voltage logic without level shifters.
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, 2.5 V, 3.3 V, and 5 V logic domains |
| Input Voltage Tolerance | Up to 5.5 V - enables use as input translator in mixed-supply systems without external clamping |
| Hysteresis Width (ΔVT) | 0.56 V min at 3.0 V - provides ≥300 mV noise margin for reliable switching on noisy sensor or switch inputs |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive multiple LVC loads or small capacitive traces (≤30 pF) with <7 ns tPD |
| Propagation Delay (tPD) | 0.7–7.0 ns - ensures timing-critical signal conditioning in real-time control loops (e.g., motor commutation feedback) |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications |
| IOFF Leakage Current | ±2 μA max - prevents damaging backflow when powered down while system buses remain active |
Pinout & Package
SOT25 (3.0 mm × 2.8 mm × 1.2 mm, 0.95 mm lead pitch) surface-mount package with exposed pad not present; moisture sensitivity level 1 per J-STD-020; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | Schmitt-triggered input accepting 0–5.5 V; no pull-up/down required due to hysteresis |
| 2 (GND) | Ground Reference | Return path for all internal logic and output current; must be low-impedance for stable noise immunity |
| 3 (Y) | Data Output | Push-pull CMOS output driving high/low actively; supports bus hold when unused |
| 4 (VCC) | Power Supply | Primary supply rail (1.65–5.5 V); powers internal logic and output stage |
| 5 (NC) | No Connection | Internally unconnected pin; must remain floating - no routing or soldering permitted |
Key Features
| Feature | Design Value |
|---|---|
| Grade 1 Automotive Qualification | AEC-Q100 qualified, PPAP-capable, manufactured in IATF 16949 facilities - meets OEM requirements for engine control, body electronics, and ADAS subsystems |
| IOFF Partial Power-Down | Disables output path when VCC = 0 V, eliminating back-current risk in hot-swap or sleep-mode architectures |
| 5.5 V-Tolerant Inputs | Accepts 5 V logic signals even at VCC = 1.8 V - eliminates need for discrete level-shifting components |
| Low Dynamic Power | CPD = 15 pF at 3.3 V - reduces switching power consumption in battery-powered telematics modules |
| ESD Robustness | 2 kV HBM, 1 kV CDM - exceeds AEC-Q100-002/-011 for reliability in manufacturing and field environments |
Applications
| Engine Control Unit Signal Conditioning | Automotive Body Control Module |
|---|---|
Use Scenario: Debouncing crankshaft position sensor pulses before feeding to MCU timer capture input. IC Role / Device Role / Timing Role: Schmitt buffer providing hysteresis-based noise rejection and clean edge generation for precise RPM calculation. Use Value: Eliminates false triggering from EMI-induced transients on long harness runs, improving ignition timing accuracy. | Use Scenario: Isolating door lock actuator enable signals during vehicle sleep mode. IC Role / Device Role / Timing Role: IOFF-enabled buffer blocking backfeed from 12 V wake-up bus into powered-down 3.3 V microcontroller domain. Use Value: Prevents unintended MCU wake-up and battery drain while maintaining fast response upon valid unlock command. |
| Industrial Sensor Interface | Automotive Infotainment Power Sequencing |
Use Scenario: Conditioning analog-to-digital converter (ADC) reference voltage monitor outputs in PLC I/O modules. IC Role / Device Role / Timing Role: Level-shifting buffer translating 5 V comparator output to 3.3 V MCU GPIO with noise immunity. Use Value: Ensures reliable fault detection despite ground bounce and supply ripple in industrial enclosures. | Use Scenario: Controlling power-enable sequencing between infotainment SoC, audio codec, and display driver ICs. IC Role / Device Role / Timing Role: Non-inverting buffer with precise propagation delay (<7 ns) synchronizing enable signals across voltage domains. Use Value: Guarantees strict power-up order compliance to prevent latch-up or configuration corruption during cold start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt trigger buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DBVR | Same logic function and hysteresis but rated only to +85°C; lacks AEC-Q100 qualification and IOFF | Not suitable for under-hood automotive use; limited to commercial temperature industrial controls | Select only if Grade 1 temp range and automotive qualification are unnecessary |
| 74LVC1G17GW,125 | Identical specs and AEC-Q100 Grade 1 rating, but in SOT363 (6-pin) package with NC pins repurposed as GND/VCC | Higher pin count increases PCB area; dual supply decoupling possible but unnecessary for single-buffer use | Prefer 74LVC1G17QW5-7 for space-constrained designs requiring minimal footprint |
Compared with SN74LVC1G17DBVR and 74LVC1G17GW,125, the 74LVC1G17QW5-7 uniquely combines SOT25's compact size, full automotive qualification, and IOFF protection - making it optimal for space- and reliability-critical engine management nodes.
Availability
74LVC1G17QW5-7 is available at Aetrix Electronics and suitable for engine control units, body control modules, and industrial sensor interfaces requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for 74LVC1G17QW5-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability solutions for automotive, industrial, and computing markets.
The 74LVC logic family delivers low-voltage, high-speed CMOS performance with robust noise immunity and wide supply flexibility - engineered specifically for automotive signal integrity and industrial system resilience.
FAQ
What is the purpose of the NC pin on the 74LVC1G17QW5-7?
Pin 5 is designated NC (No Connection) and is internally unconnected. It must remain unconnected on the PCB - neither routed nor soldered - to avoid mechanical stress or parasitic coupling that could affect thermal performance or ESD robustness in the SOT25 package.
Can the 74LVC1G17QW5-7 operate reliably at 1.65 V supply while driving a 30 pF load?
Yes. At VCC = 1.65 V, the device guarantees tPD ≤ 14.0 ns and VOL ≤ 0.7 V with IOL = 4 mA, meeting timing and logic-low margin requirements for 30 pF loads typical in automotive sensor interface traces and short PCB runs.
How does IOFF protect the device during partial power-down?
IOFF activates when VCC drops near 0 V, disabling both output FETs to create high-impedance isolation. This prevents reverse current flow from live 5 V buses into the unpowered VCC rail, protecting downstream logic and avoiding latch-up in multi-rail automotive ECUs.
Is the 74LVC1G17QW5-7 compatible with 5 V TTL input levels?
Yes. Its inputs tolerate up to 5.5 V regardless of VCC level, allowing direct connection to 5 V TTL outputs without external resistors or clamps - verified across −40°C to +125°C with VIH(min) = 1.5 V at VCC = 3.0 V and full hysteresis functionality preserved.
74LVC1G17QW5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- Schmitt Trigger
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
74LVC1G17QW5-7 FAQ
1.How can I place an order for 74LVC1G17QW5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC1G17QW5-7 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 74LVC1G17QW5-7 reliable?
The price and inventory of 74LVC1G17QW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC1G17QW5-7 is usually 5 days.
3.What payment methods are accepted for 74LVC1G17QW5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC1G17QW5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC1G17QW5-7?
74LVC1G17QW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC1G17QW5-7 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 74LVC1G17QW5-7?
For technical support, including 74LVC1G17QW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC1G17QW5-7 requirements.
6.How does Aetrix verify that 74LVC1G17QW5-7 is sourced from the original manufacturer or authorized distributors?
All 74LVC1G17QW5-7 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 74LVC1G17QW5-7 meets industry standards.
7.What is the process for return or replacement of 74LVC1G17QW5-7?
All 74LVC1G17QW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC1G17QW5-7, 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 74LVC1G17QW5-7 part is unused and in its original packaging.
Return procedure for 74LVC1G17QW5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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