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Home > Products > Integrated Circuits (ICs) > Linear > Video Processing

Semtech Corporation GS1678-INTE3

Name: GS1678-INTE3
Brand: Semtech Corporation
SKU: GS1678-INTE3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: GS1678-INTE3

Manufacturer:: Semtech Corporation

Category:: Video Processing

Package:: 16-VQFN Exposed Pad

Datasheet:: GS1678-INTE3.pdf

Description:: IC VIDEO CABLE DRIVER 16QFN

Quantity:: RFQ Add To RFQ list

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Inventory:250

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Product details

Overview

GS1678-INTE3 from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance. It protects USB Type-C power delivery buses, load switch inputs, and industrial interfaces where stable clamping under temperature and current stress is critical.

For engineers reviewing the GS1678-INTE3 datasheet, pinout, applications, or equivalent options, this device offers constant-voltage clamping across its full 40A surge range and −40°C to +125°C operating temperature-key for USB PD, IoT, and industrial equipment designers selecting robust, low-inductance EOS protection with minimal board space.

Technical Context

The GS1678-INTE3 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly turns on the shunt path. Unlike conventional TVS diodes, its clamping voltage remains nearly flat (27.5–28V) from 24A to 40A due to decreasing R_DS(on) under surge conditions.

It operates with a 22V reverse stand-off voltage and exhibits only 175pF junction capacitance at 22V/1MHz, enabling use on high-speed power rails without signal integrity degradation. Its DFN 1.6×1.6×0.55mm package integrates three parallel input terminals (Pins 4–6) and three ground terminals (Pins 1–3) to minimize parasitic inductance and maximize surge current handling.

Key Specifications

Parameter	Value and Actual Design Meaning
Reverse Stand-Off Voltage	22 V - Maximum continuous DC or RMS voltage the device blocks without conduction.
Clamping Voltage (40A, 8/20μs)	27.5–28 V - Peak voltage seen across protected line during worst-case 40A surge; enables safe operation of 24V-rated downstream ICs.
Peak Pulse Current	40 A (8/20μs) - Withstands industrial-level surges per IEC 61000-4-5, including ±1kV combo-wave (1.2/50μs + 8/20μs).
ESD Withstand	±30 kV contact & air - Meets highest IEC 61000-4-2 level, eliminating need for secondary ESD stages in USB-C connectors.
Dynamic Resistance	20 mΩ - Low ON-resistance ensures minimal voltage rise under surge, critical for maintaining clamping stability.
Junction Capacitance	175 pF @ 22V, 1 MHz - Low enough to avoid degrading signal integrity on 20V power rails in USB PD and industrial systems.

Pinout & Package

GS1678-INTE3 is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with six leads and UL 94V-0 molding compound. The compact footprint delivers significant board space savings versus discrete TVS+series resistor solutions.

Pin/Terminal	Circuit Role	Design Meaning
Pins 1, 2, 3	GND	Low-inductance ground return path; all three must be connected to PCB ground plane via multiple vias for full 40A surge capability.
Pins 4, 5, 6	IN	Parallel-connected input terminals for protected bus (e.g., VBUS in USB-C); all three required to distribute surge current and minimize trace inductance.

Key Features

Feature	Design Value
Constant clamping voltage vs. current	27.5–28V across full 24–40A surge range - eliminates design margin uncertainty caused by rising TVS clamping.
Stable clamping over temperature	No increase in VC from −40°C to +125°C - enables reliable protection in uncooled industrial enclosures and automotive cabins.
Low dynamic resistance	20mΩ - reduces I²R heating and maintains low voltage overshoot during fast-rising transients.
High EFT immunity	±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive burst noise in motor drives and PLCs.

Applications

USB Type-C Power Delivery Protection	Industrial Load Switch Input Protection
Use Scenario: Protecting 20V–22V VBUS lines in USB-C receptacles supporting up to 100W PD, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed adjacent to connector, diverting surge energy to ground before it reaches PD controller or e-fuse. Use Value: Maintains 27.5–28V clamping at 40A and 125°C-well below 30V damage threshold of common PD controllers-without derating.	Use Scenario: Safeguarding input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Front-end transient suppressor that limits voltage across the load switch's internal FET during 1kV surge events. Use Value: Prevents gate oxide breakdown and latch-up in load switches by holding clamping voltage <28V, even at full 40A surge and elevated ambient temperatures.
IoT Edge Node Power Rail Protection	Notebook/Tablet DC Power Input Protection
Use Scenario: Securing 12–24V DC input rails of battery-powered IoT gateways and sensor hubs deployed in electrically noisy environments. IC Role / Device Role / Timing Role: Single-device solution replacing TVS + series impedance, providing low-capacitance, high-surge protection without signal distortion. Use Value: 175pF capacitance avoids filtering effects on 20V rail monitoring circuits; ±30kV ESD rating eliminates external spark gaps in compact enclosures.	Use Scenario: Protecting 20V input stages of ultrabooks and tablets with USB-C charging, subject to user-handling ESD and accidental AC adapter surges. IC Role / Device Role / Timing Role: First-line defense on main DC input, placed directly at barrel jack or USB-C port to clamp transients before PMIC input stage. Use Value: Enables compliance with IEC 61000-4-2 Level 4 and IEC 61000-4-5 Line-to-Ground ±1kV without increasing BOM count or PCB area.

USB Type-C Power Delivery Protection

Industrial Load Switch Input Protection

Use Scenario: Protecting 20V–22V VBUS lines in USB-C receptacles supporting up to 100W PD, exposed to ESD and lightning-induced surges.

IC Role / Device Role / Timing Role: Primary EOS shunt protector placed adjacent to connector, diverting surge energy to ground before it reaches PD controller or e-fuse.

Use Value: Maintains 27.5–28V clamping at 40A and 125°C-well below 30V damage threshold of common PD controllers-without derating.

Use Scenario: Safeguarding input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems.

IC Role / Device Role / Timing Role: Front-end transient suppressor that limits voltage across the load switch's internal FET during 1kV surge events.

Use Value: Prevents gate oxide breakdown and latch-up in load switches by holding clamping voltage <28V, even at full 40A surge and elevated ambient temperatures.

IoT Edge Node Power Rail Protection

Notebook/Tablet DC Power Input Protection

Use Scenario: Securing 12–24V DC input rails of battery-powered IoT gateways and sensor hubs deployed in electrically noisy environments.

IC Role / Device Role / Timing Role: Single-device solution replacing TVS + series impedance, providing low-capacitance, high-surge protection without signal distortion.

Use Value: 175pF capacitance avoids filtering effects on 20V rail monitoring circuits; ±30kV ESD rating eliminates external spark gaps in compact enclosures.

Use Scenario: Protecting 20V input stages of ultrabooks and tablets with USB-C charging, subject to user-handling ESD and accidental AC adapter surges.

IC Role / Device Role / Timing Role: First-line defense on main DC input, placed directly at barrel jack or USB-C port to clamp transients before PMIC input stage.

Use Value: Enables compliance with IEC 61000-4-2 Level 4 and IEC 61000-4-5 Line-to-Ground ±1kV without increasing BOM count or PCB area.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TDS2211P	Same die, identical electrical specs and package; GS1678-INTE3 is Semtech's alternate marking for TDS2211P per official ordering documentation.	No functional difference; both qualified for USB PD, industrial, and computing applications per same datasheet Rev 2.5.	Select GS1678-INTE3 when sourcing from distributors listing this part number; no redesign or validation needed.
uClamp2411ZA	24V working voltage, lower 20A IPP rating, higher 33V clamping at 20A, and 12pF capacitance - optimized for CC/SBU lines, not power rails.	Intended for low-capacitance data-line protection (e.g., USB-C CC pins), not 22V power bus protection.	Not suitable as direct replacement; use only for signal-line protection where sub-15pF capacitance is mandatory.

Compared with TDS2211P and uClamp2411ZA, GS1678-INTE3 delivers identical 22V/40A/28V clamping performance in the same DFN package but is distributed under an alternate Semtech orderable part number-enabling supply chain flexibility without technical trade-offs.

Availability

GS1678-INTE3 is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply, long-term lifecycle support, and guaranteed RoHS/WEEE compliance.

Supply support for GS1678-INTE3 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

Semtech Corporation is a U.S.-based fabless semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and connectivity.

The Transient Diverting Suppressor (TDS) product line was developed to replace conventional TVS diodes in high-reliability power rail protection, delivering flat-clamp behavior and temperature-stable surge handling for USB PD, industrial, and computing applications.

FAQ

What is the exact function of GS1678-INTE3 in a circuit?

GS1678-INTE3 functions as a transient diverting suppressor that actively shunts high-energy EOS events-such as ESD, lightning surges, and EFT bursts-to ground using a precision-triggered FET. Unlike passive TVS diodes, GS1678-INTE3 maintains a near-constant 27.5–28V clamping voltage from 24A to 40A and across −40°C to +125°C, protecting 22V-rated power rails without derating. Its role is strictly front-end overvoltage protection, not regulation or signal conditioning.

Is GS1678-INTE3 pin-compatible with TDS2211P?

Yes-GS1678-INTE3 is Semtech's alternate marking for the TDS2211P device. Both share identical DFN 1.6×1.6×0.55mm package, identical pin configuration (Pins 1–3 = GND, Pins 4–6 = IN), identical absolute maximum ratings, and identical electrical characteristics per Rev 2.5 datasheet. No PCB layout changes are required when substituting GS1678-INTE3 for TDS2211P or vice versa.

What is the clamping voltage of GS1678-INTE3 at 40A surge current?

The clamping voltage of GS1678-INTE3 is guaranteed between 27.5 V and 28 V at 40A peak pulse current (tp = 8/20μs), measured using a combination waveform (1.2/50μs voltage + 8/20μs current) with 2Ω source impedance. This value is stable across temperature (−40°C to +125°C) and represents the maximum voltage imposed on the protected line during worst-case surge events.

Can GS1678-INTE3 be used on high-speed data lines like USB SuperSpeed?

No-GS1678-INTE3 is not intended for high-speed data lines. With 175pF junction capacitance, it is optimized for 22V power rails (e.g., USB-C VBUS, load switch inputs), not differential signal pairs. For USB SuperSpeed TX/RX, USB 3.x, or DisplayPort lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF). Using GS1678-INTE3 on data lines would severely degrade signal integrity.

Does GS1678-INTE3 require a thermal pad or heatsink?

No-GS1678-INTE3 does not require a thermal pad or external heatsink. Its DFN package dissipates surge energy through low-R_DS(on) conduction rather than junction heating, and the datasheet explicitly states "no thermal pad is needed." Proper PCB layout-using all six pins, short traces, and multiple ground vias-is sufficient to handle 40A surges without thermal derating.

GS1678-INTE3 Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: -

Package/Case:: 16-VQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Function:: Driver

Applications:: Professional Video

Standards:: SMPTE

Control Interface:: Serial

Voltage - Supply:: 3.135V ~ 3.465V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 16-QFN (4x4)

GS1678-INTE3 FAQ

1.How can I place an order for GS1678-INTE3 through Aetrix?

Please submit a Request for Quotation (RFQ) for GS1678-INTE3 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 GS1678-INTE3 reliable?

The price and inventory of GS1678-INTE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS1678-INTE3 is usually 5 days.

3.What payment methods are accepted for GS1678-INTE3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS1678-INTE3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for GS1678-INTE3?

GS1678-INTE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your GS1678-INTE3 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 GS1678-INTE3?

For technical support, including GS1678-INTE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS1678-INTE3 requirements.

6.How does Aetrix verify that GS1678-INTE3 is sourced from the original manufacturer or authorized distributors?

All GS1678-INTE3 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 GS1678-INTE3 meets industry standards.

7.What is the process for return or replacement of GS1678-INTE3?

All GS1678-INTE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS1678-INTE3, 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 GS1678-INTE3 part is unused and in its original packaging.

Return procedure for GS1678-INTE3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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