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STMicroelectronics DPIULC6-6DJL
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- Part No.:
- DPIULC6-6DJL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 18-VFDFN Exposed Pad
- Datasheet:
-
DPIULC6-6DJL.pdf
- Description:
- TVS DIODE 3VWM 17VC 18DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DPIULC6-6DJL from STMicroelectronics is an ultra-low-capacitance ESD protection array designed specifically for internal DisplayPort™ 1.1a interfaces, featuring 1.5 pF I/O-to-GND capacitance at 1 MHz, <0.05 pF capacitance variation between differential pairs, 100 Ω ±10% differential impedance, and compliance with IEC 61000-4-2 Level 4 (±8 kV contact discharge).
For engineers reviewing the DPIULC6-6DJL datasheet, DPIULC6-6DJL pinout, DPIULC6-6DJL application, or DPIULC6-6DJL equivalent, this device delivers verified high-speed signal integrity for DisplayPort main link lanes (ML_LANE0+/−, ML_LANE1+/−) and AUX channel (AUX_CH+/−), supporting 2.7 Gbps operation with sub-0.4 dB passband attenuation up to 4 GHz.
Technical Context
The DPIULC6-6DJL integrates six independent ESD protection channels-four for two differential DisplayPort main link lanes and two for the AUX channel-with dedicated clamping paths per line. Each channel provides 6 V breakdown voltage (VBR), ≤12 V clamping voltage at 1 A ESD current, and maintains <0.12 pF inter-pair capacitance mismatch to preserve differential signal fidelity.
Its DFN 5x6 package includes an exposed thermal pad tied to ground, enabling low-inductance ESD current shunting. The device operates across −40 °C to +125 °C junction temperature and supports reflow soldering up to 260 °C for 10 seconds, meeting industrial and computing system reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR | 6 V minimum breakdown voltage ensures robust overvoltage triggering before DisplayPort receiver damage threshold. |
| CI/O–GND @ 1 MHz | 1.5 pF typical capacitance minimizes signal loading on high-speed differential lines. |
| ΔCI/O–GND | 0.05 pF max capacitance variation between paired lines preserves common-mode rejection and eye opening. |
| ZDiff | 90–110 Ω differential impedance matches standard 100 Ω PCB layout without compensation. |
| VCL @ 5 A | 17 V maximum clamping voltage limits transient stress during 8 kV contact ESD events. |
| fC (AUX) | 7.0 MHz cutoff frequency on AUX channel enables DC-coupled sideband communication while filtering RF noise. |
Pinout & Package
Package: DFN 5x6, 18-lead, with exposed central thermal pad (must be connected to ground plane for optimal ESD performance and thermal dissipation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 7, 10, 13, 16 | D1+, D2+, AUX+, D1+, D2+, AUX+ | Positive input terminals for main link Lane 0/1 and AUX channel; routed in matched-length differential pairs. |
| 2, 5, 8, 11, 14, 17 | D1−, D2−, AUX−, D1−, D2−, AUX− | Negative input terminals completing six differential ESD protection paths. |
| 3, 6, 9, 12, 15, 18 | GND | Ground return pins distributed across package edges to minimize loop inductance during ESD transients. |
| Central Pad | GND | Exposed thermal pad electrically and thermally connected to system ground plane for low-impedance ESD current path. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow capacitance variation | 0.05 pF max ΔC between differential pair lines ensures <0.1 UI jitter contribution at 2.7 Gbps. |
| 100 Ω differential impedance match | 90–110 Ω measured ZDiff eliminates need for trace-width tuning in 100 Ω differential routing. |
| 5 GHz bandwidth | Passband attenuation <0.4 dB up to 4 GHz enables full transparency for DisplayPort 1.1a (2.7 Gbps) and beyond. |
| DFN 5x6 footprint | 5 mm × 6 mm body with 0.5 mm pitch supports dense PCB layouts while maintaining manufacturability. |
Applications
| DisplayPort Source Interface | DisplayPort Sink Interface |
|---|---|
Use Scenario: Protection of GPU or SoC DisplayPort transmitter outputs driving a cable or internal flex connector. IC Role / Device Role / Timing Role: ESD transient suppressor on ML_LANE0+/−, ML_LANE1+/−, and AUX_CH+/− lines prior to connector interface. Use Value: Prevents permanent damage from handling ESD while preserving 2.7 Gbps eye diagram integrity (verified via comparative eye testing). | Use Scenario: Protection of monitor or dock DisplayPort receiver inputs receiving signals from external source. IC Role / Device Role / Timing Role: Front-end ESD clamp on all three differential signal groups entering the sink-side PHY. Use Value: Maintains <0.05 pF inter-pair capacitance matching to avoid skew-induced eye closure in AUX and main link paths. |
| Laptop Internal Video Interconnect | Desktop Graphics Module Interface |
Use Scenario: High-density routing between discrete GPU and embedded display controller on thin-profile motherboard. IC Role / Device Role / Timing Role: Integrated ESD solution replacing discrete diode arrays, reducing BOM count and board area. Use Value: 18-pin DFN 5x6 footprint consolidates six protection channels into 30 mm², saving >40% area vs. dual-channel alternatives. | Use Scenario: Add-in graphics card output to internal display multiplexer or USB-C Alt Mode switch. IC Role / Device Role / Timing Role: Signal-line protector placed immediately after GPU output buffer, before any passive components. Use Value: 6 V VBR aligns with DisplayPort 1.1a VDDIO tolerance, preventing false triggering during normal 3.3 V operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DisplayPort ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDALC6V1-1M2 | Single-channel 6 V ESD diode; 0.5 pF CI/O–GND; no differential impedance control. | Requires six discrete placements; lacks matched-pair capacitance control and ZDiff specification. | Use only when board space allows discrete implementation and differential skew is managed externally. |
| TPD6S300A | 6-channel DisplayPort ESD protector; 0.45 pF CI/O–GND; 100 Ω ZDiff; supports DP 1.2 (5.4 Gbps). | Higher bandwidth (6 GHz) and lower capacitance, but larger 3.5 mm × 3.5 mm QFN package with different pinout. | Preferred for new DP 1.2+ designs requiring higher data rates; not drop-in compatible due to footprint and pin assignment differences. |
Compared with ESDALC6V1-1M2 and TPD6S300A, the DPIULC6-6DJL uniquely balances 1.5 pF capacitance, <0.05 pF inter-pair matching, and 100 Ω ZDiff in a single DFN 5x6 package-making it the only solution validated for DisplayPort 1.1a internal routing where layout density and differential integrity are co-constrained.
Availability
DPIULC6-6DJL is available at Aetrix Electronics and suitable for laptop video subsystems, desktop GPU interconnects, and docking station DisplayPort interfaces requiring stable component supply, long-lifecycle support, and consistent ESD performance across production batches.
Supply support for DPIULC6-6DJL 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
The DPIULC6 series belongs to ST's ultralow-capacitance ESD protection product line, engineered specifically to meet VESA DisplayPort 1.1a signal integrity and robustness requirements without compromising high-speed timing margins.
FAQ
Is the central thermal pad of the DPIULC6-6DJL required to be connected to ground?
Yes-the exposed central pad must be soldered to a solid ground plane. This connection provides the lowest possible inductance path for ESD current diversion and improves thermal dissipation during repeated transients. Omitting this connection degrades clamping performance and violates ST's recommended layout per Figure 14 and Section 4 of Doc ID 16831 Rev 2.
Can DPIULC6-6DJL be used for DisplayPort 1.2 or higher versions?
No-it is qualified and characterized only for DisplayPort 1.1a (2.7 Gbps). While its 5 GHz bandwidth suggests theoretical compatibility, ST does not guarantee performance at 5.4 Gbps (DP 1.2) or 8.1 Gbps (DP 1.3/1.4); TPD6S300A or similar devices are specified for those speeds.
What is the meaning of "NC" pins shown in the schematic diagram?
The "NC" labels in Figure 1 refer to unconnected die bond pads-not functional pins. These positions (pins 1, 4, 7, etc., depending on orientation) are left floating by design and must not be connected to any net. They exist for mechanical symmetry and do not affect electrical behavior or ESD performance.
Does DPIULC6-6DJL require external biasing or control signals?
No-it is a passive, bidirectional ESD protection array with no power supply, enable pin, or configuration interface. It operates transparently in-circuit: leakage current remains ≤100 nA at 3.0 V, and no DC bias or signal conditioning is needed for normal operation or ESD event response.
DPIULC6-6DJL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 18-VFDFN Exposed Pad
- Series:
- DPI
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1.5pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 18-DFN (5x6)
DPIULC6-6DJL FAQ
1.How can I place an order for DPIULC6-6DJL through Aetrix?
Please submit a Request for Quotation (RFQ) for DPIULC6-6DJL 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 DPIULC6-6DJL reliable?
The price and inventory of DPIULC6-6DJL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DPIULC6-6DJL is usually 5 days.
3.What payment methods are accepted for DPIULC6-6DJL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DPIULC6-6DJL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DPIULC6-6DJL?
DPIULC6-6DJL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DPIULC6-6DJL 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 DPIULC6-6DJL?
For technical support, including DPIULC6-6DJL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DPIULC6-6DJL requirements.
6.How does Aetrix verify that DPIULC6-6DJL is sourced from the original manufacturer or authorized distributors?
All DPIULC6-6DJL 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 DPIULC6-6DJL meets industry standards.
7.What is the process for return or replacement of DPIULC6-6DJL?
All DPIULC6-6DJL units undergo pre-shipment inspection (PSI). If there is an issue with DPIULC6-6DJL, 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 DPIULC6-6DJL part is unused and in its original packaging.
Return procedure for DPIULC6-6DJL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DPIULC6-6DJL Tags
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