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Semtech Corporation GS1678-INE3
- Part No.:
- GS1678-INE3
- Manufacturer:
- Semtech Corporation
- Category:
- Video Processing
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
GS1678-INE3.pdf
- Description:
- IC VIDEO CABLE DRIVER 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:459
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Product details
Overview
GS1678-INE3 from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and a stable 27.5–28V clamping voltage across full temperature (−40°C to +125°C) and current range - critical for USB PD and industrial load switch input protection.
For engineers reviewing the GS1678-INE3 datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, DFN-6 package layout guidance, functional role in surge diversion, and direct alternatives with documented clamping and thermal behavior differences.
Technical Context
The GS1678-INE3 uses a surge-rated FET as its primary protection element, activated by an integrated precision trigger circuit that senses overvoltage events. Unlike conventional TVS diodes, it achieves near-constant clamping voltage due to the FET's low dynamic resistance (20 mΩ) and decreasing RDS(on) under surge conditions.
It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and junction capacitance of 175 pF at 22V/1MHz. Its 6-pin DFN package integrates three parallel input terminals (pins 4–6) and three ground terminals (pins 1–3), requiring all six pins to be connected for rated 40A surge performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22 V - defines maximum continuous DC bus voltage before activation; matches USB PD 20V nominal + margin. |
| Clamping Voltage | 27.5–28 V at 40A (8/20μs) - remains stable across temperature and current, enabling predictable downstream IC protection. |
| Peak Pulse Current | 40 A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD systems. |
| ESD Withstand | ±30 kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without derating. |
| Dynamic Resistance | 20 mΩ - ensures minimal voltage rise under surge, critical for maintaining clamping stability vs. conventional TVS. |
| Junction Capacitance | 175 pF at 22V/1MHz - suitable for power-line and medium-speed signal-line protection; not for >1Gbps data lanes. |
| Operating Temperature | −40°C to +125°C - supports extended-range industrial and automotive under-hood applications. |
Pinout & Package
GS1678-INE3 is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with 6 leads and UL 94V-0 molding compound. All pins must be soldered per layout guidelines to achieve rated surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | GND | Low-inductance ground return path; all three must connect to solid ground plane via multiple vias for 40A surge conduction. |
| Pins 4, 5, 6 | IN | Parallel-connected input terminals for protected line; shared connection required to distribute surge current and minimize trace inductance. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based transient shunt | Replaces PN-junction TVS with active switching; enables flat clamping curve independent of IPP and temperature. |
| Stable clamping over temperature | Clamping voltage variation <0.5 V from −40°C to +125°C at 40A - eliminates thermal derating calculations. |
| High-energy surge handling | 1120 W peak pulse power (8/20μs) - sustains multi-event surge stress without degradation in industrial environments. |
| Low dynamic resistance | 20 mΩ measured between 1A–40A - minimizes IR drop during surge, preserving voltage margin for protected ICs. |
| DFN-6 space efficiency | 1.6 mm × 1.6 mm footprint - reduces PCB area by >50% versus SO-8 or SOT-23 TVS solutions with comparable ratings. |
Applications
| USB Type-C Power Delivery Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting VBus lines in USB-C receptacles supporting up to 20V/5A PD negotiation, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt device placed directly at connector, diverting transients before reaching PD controller or load switch. Use Value: Maintains 27.5–28 V clamping at full 40A surge and 125°C ambient - prevents overvoltage damage to sensitive USB PD controllers where conventional TVS would exceed 38 V. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Front-end transient suppressor on VIN rail, limiting voltage seen by internal FET gate oxide during 1.2/50μs surge events. Use Value: Clamps below 28 V across −40°C to +125°C, ensuring load switch FET remains within safe operating voltage limits even during sustained high-temp operation. |
| IoT Device Power Bus Protection | Storage Device 22V Rail Protection |
Use Scenario: Securing 22V auxiliary power rails in battery-backed IoT gateways and edge nodes subject to field ESD and induced surges. IC Role / Device Role / Timing Role: Standalone EOS protector on main system power input, coordinated with upstream e-fuse and downstream LDOs. Use Value: Delivers ±30 kV ESD immunity and 40A surge rating in ultra-compact DFN-6 - enables robust protection without compromising small-form-factor design. |
Use Scenario: Protecting 22V supply inputs in NVMe SSD enclosures and enterprise storage backplanes exposed to hot-plug transients and board-level ESD. IC Role / Device Role / Timing Role: High-reliability transient suppressor on primary power entry point, preceding DC-DC converters and PMICs. Use Value: Stable 27.5–28 V clamping ensures consistent overvoltage margin for storage controller ICs, eliminating thermal drift-related failure modes common with TVS diodes. |
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 DFN-6 package - GS1678-INE3 is Semtech's alternate marking for TDS2211P per official ordering documentation. | Direct functional and mechanical replacement; validated for same USB PD, load switch, and industrial use cases. | Select GS1678-INE3 when sourcing from authorized Semtech distribution channels using this part number; no design change required. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A, higher clamping (35.5V), significant thermal drift (+15% VC at 125°C). | Limited to lower-energy surges; unsuitable for 40A/1120W events or high-temp industrial deployments. | Use only where cost sensitivity outweighs clamping stability and surge rating; requires thermal derating and layout revalidation. |
Compared with TDS2211P, GS1678-INE3 offers identical performance and form factor, while SMAJ22A trades clamping precision and surge capacity for lower unit cost - making GS1678-INE3 optimal for designs demanding guaranteed 28V clamping at full 40A and 125°C.
Availability
GS1678-INE3 is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT device 22V power bus protection requiring stable component supply across long production lifecycles.
Supply support for GS1678-INE3 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 GS1678-INE3 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power-rail protection applications demanding stable clamping and wide-temperature operation.
FAQ
What is the exact package type and dimensions of GS1678-INE3?
GS1678-INE3 uses a 6-lead DFN package measuring 1.6 mm × 1.6 mm × 0.55 mm with exposed pad-less construction. Pin 1 is marked by a laser dot; the package is Pb-free, halogen-free, and RoHS/WEEE compliant with UL 94V-0 flammability rating. Full land pattern and outline drawings are provided in Semtech's official datasheet Rev 2.5.
Does GS1678-INE3 require external bias or control signals to operate?
No, GS1678-INE3 is a fully autonomous transient suppressor. It contains an integrated precision trigger circuit and surge-rated FET - no external power, enable pins, or configuration are needed. The device activates automatically when input voltage exceeds its 25–27.9V breakdown threshold, making GS1678-INE3 ideal for plug-and-play protection in USB PD and industrial power rails.
How does GS1678-INE3 differ from standard TVS diodes in clamping behavior?
Unlike standard TVS diodes whose clamping voltage rises linearly with peak pulse current (VC = VBR + IPP × RDYN), GS1678-INE3 maintains a nearly constant 27.5–28V clamping voltage from 1A to 40A and across −40°C to +125°C. This results from its FET-based architecture and sub-20mΩ dynamic resistance - a key differentiator confirmed in Semtech's TDS2211P characterization data.
Can GS1678-INE3 be used on high-speed data lines like USB SuperSpeed or PCIe?
No, GS1678-INE3 is not suitable for high-speed data lines. With 175 pF junction capacitance at 22V, it introduces excessive signal loading and distortion on differential pairs operating above ~100 Mbps. It is specifically intended for 22V power rails and medium-speed control lines - for USB SS/DP/DM, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25 pF), as referenced in the GS1678-INE3 application notes.
Is GS1678-INE3 pin-compatible with other Semtech TDS devices?
GS1678-INE3 shares the same 6-pin DFN footprint and pinout (pins 1–3 = GND, pins 4–6 = IN) with TDS2211P and is functionally identical. However, it is not pin-compatible with other TDS variants such as TDS2411P (24V) or TDS1211P (12V), which retain the same package but differ in voltage rating and internal trigger thresholds - direct substitution requires validation of working voltage and clamping targets.
GS1678-INE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tray
- 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-INE3 FAQ
1.How can I place an order for GS1678-INE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for GS1678-INE3 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-INE3 reliable?
The price and inventory of GS1678-INE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS1678-INE3 is usually 5 days.
3.What payment methods are accepted for GS1678-INE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS1678-INE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GS1678-INE3?
GS1678-INE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GS1678-INE3 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-INE3?
For technical support, including GS1678-INE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS1678-INE3 requirements.
6.How does Aetrix verify that GS1678-INE3 is sourced from the original manufacturer or authorized distributors?
All GS1678-INE3 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-INE3 meets industry standards.
7.What is the process for return or replacement of GS1678-INE3?
All GS1678-INE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS1678-INE3, 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-INE3 part is unused and in its original packaging.
Return procedure for GS1678-INE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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