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STMicroelectronics DVIULC6-2M6
- Part No.:
- DVIULC6-2M6
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- 6-UFDFN
- Datasheet:
-
DVIULC6-2M6.pdf
- Description:
- TVS DIODE 5VWM 17VC 6UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,900
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Product details
Overview
DVIULC6-2M6 from STMicroelectronics is a monolithic ultra-low-capacitance ESD protection diode array designed for high-speed differential data lines including DVI, IEEE 1394, USB 2.0, and Ethernet. It provides 2-line protection with 0.6 pF typical I/O-to-GND capacitance at 825 MHz, 15 kV IEC 61000-4-2 air discharge rating, and clamping voltage of 12 V at 1 A (8/20 µs), deployed in DVI single-link interfaces up to 1.65 Gb/s.
For engineers reviewing the DVIULC6-2M6 datasheet, DVIULC6-2M6 pinout, DVIULC6-2M6 application, or DVIULC6-2M6 equivalent, this device is selected specifically for maintaining signal integrity on high-speed TMDS and serial data links while delivering robust system-level ESD immunity without compromising bit-rate performance or inter-pair skew balance.
Technical Context
The DVIULC6-2M6 implements a rail-to-rail ESD protection topology using integrated low-capacitance transient voltage suppression diodes between each I/O line and GND, plus VBUS-to-GND breakdown capability. Its monolithic silicon structure ensures matched capacitance (<0.02 pF variation across 1 MHz–1 GHz) and <0.5 pF I/O-to-I/O coupling, critical for minimizing intra-pair skew in DVI and IEEE 1394 applications.
It operates with ≤0.5 µA leakage at 5 V, supports junction temperatures up to 125 °C, and maintains stable clamping behavior (12 V @ 1 A, 17 V @ 5 A) under IEC 61000-4-2 surge conditions - enabling reliable protection without signal distortion in bandwidth-sensitive video and data transmission paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±15 kV air / ±15 kV contact per IEC 61000-4-2 Level 4 - guarantees system-level immunity without external suppressors |
| I/O-to-GND Capacitance | 0.6 pF typ @ 825 MHz - preserves signal rise/fall times and eye opening for 1.65 Gb/s DVI and 3.2 Gb/s IEEE 1394 |
| Clamping Voltage | 12 V @ 1 A (8/20 µs) - limits downstream IC stress below safe thresholds for 3.3 V/5 V interface receivers |
| Leakage Current | ≤0.5 µA @ 5 V - enables long battery life in portable USB/DVI peripherals without standby power penalty |
| Breakdown Voltage | 6 V min @ 1 mA - ensures reliable turn-on before sensitive transceivers reach damage threshold |
| Package Size | 1.45 mm × 1.00 mm µQFN - occupies only 1.45 mm² PCB area, ideal for space-constrained HDMI/DVI connectors |
Pinout & Package
Supplied in a 6-lead micro QFN (µQFN) package with 0.5 mm pitch, exposed thermal pad, and pin 1 marked by dot or bevel. Dimensions: 1.45 × 1.00 × 0.55 mm (max height), compliant with ECOPACK® lead-free soldering standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O1 (e.g., DVI Tx0+) | Protected high-speed data line input/output - connected directly to connector pin |
| 2 | GND | Low-inductance ESD return path - must connect to solid ground plane under package |
| 3 | I/O2 (e.g., DVI Tx0−) | Differential partner to Pin 1 - matched layout required to preserve common-mode rejection |
| 4 | VBUS | VBUS supply clamp terminal - connects to 5 V rail when protecting powered ports (e.g., DVI hot-plug detection) |
| 5 | No Connect (NC) | Internally unconnected - must remain floating; not tied to VBUS or GND to avoid backdrive current |
| 6 | GND | Secondary ground terminal - improves thermal dissipation and reduces loop inductance in dual-ground configuration |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low inter-pair capacitance | 0.5 pF I/O-to-I/O - minimizes crosstalk-induced jitter and maintains differential impedance integrity |
| Matched line-to-line capacitance | ΔC ≤ 0.02 pF across 1 MHz–1 GHz - ensures consistent intra-pair skew for DVI/IEEE 1394 timing compliance |
| Monolithic integration | Single-die construction - eliminates discrete component mismatch and reduces PCB parasitics vs. multi-chip arrays |
| Optimized for TMDS signaling | Validated eye diagrams at 1.65 Gbps and 3.2 Gbps - confirms signal fidelity retention post-protection |
Applications
| DVI Single-Link Interface | IEEE 1394b/c (FireWire) |
|---|---|
Use Scenario: Protection of TMDS clock and data lanes between GPU and flat-panel display in desktop/notebook systems. IC Role / Device Role / Timing Role: ESD transient suppressor placed at DVI connector, clamping surges before they reach level-shifting or equalization circuitry. Use Value: Maintains 1.65 Gb/s eye opening (Figure 6) with <0.1 dB insertion loss up to 1.5 GHz - avoids pixel dropouts or color distortion. | Use Scenario: Shielding FireWire 3.2 Gb/s S1600/S3200 physical layer against connector-based ESD events in camcorders and audio interfaces. IC Role / Device Role / Timing Role: Bidirectional line protector on TPB/TPA differential pairs, preserving 110 Ω characteristic impedance. Use Value: Enables full-speed operation with −7.6 dB crosstalk at 7 GHz (Figure 19) - prevents data corruption during hot-plug insertion. |
| USB 2.0 High-Speed Port | Ethernet 1000BASE-T Interface |
Use Scenario: ESD safeguard for D+/D− lines in USB 2.0 host controllers or peripheral hubs operating at 480 Mb/s. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp that meets USB IF electrical compliance without degrading rise time. Use Value: 0.6 pF loading keeps tr/tf within USB 2.0 spec - avoids packet retries or enumeration failures. | Use Scenario: Surge protection for MDI-X PHY differential pairs in industrial Ethernet switches supporting 10/100/1000 Mb/s. IC Role / Device Role / Timing Role: Common-mode ESD suppressor on twisted-pair inputs, referenced to chassis ground via low-inductance GND pins. Use Value: Clamps 15 kV ESD strikes to <17 V residual (Table 2), preventing PHY latch-up or PHY register corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP1002-02UTG | 0.35 pF I/O–GND, 12 kV contact rating, SOD-523 package (1.3 × 0.85 mm) | Lacks VBUS clamp; no dedicated VBUS pin - unsuitable for DVI hot-plug or powered port protection | Select when minimal capacitance is prioritized over VBUS support and board space allows larger footprint. |
| ESD5V3U2U | 0.5 pF I/O–GND, 15 kV air/contact, 0.65 mm pitch µDFN - no VBUS pin, higher leakage (1 µA max) | Designed for USB-only use; lacks validated DVI/1394 eye diagram data and TMDS-specific layout guidance | Prefer for cost-sensitive USB 2.0 endpoints where VBUS clamping is unnecessary and leakage tolerance >0.5 µA. |
Compared with SP1002-02UTG and ESD5V3U2U, the DVIULC6-2M6 uniquely integrates VBUS clamping, delivers DVI/1394-validated signal integrity, and provides dual-GND terminals for lower inductance - making it the only option qualified for high-reliability DVI single-link and IEEE 1394b/c implementations.
Availability
DVIULC6-2M6 is available at Aetrix Electronics and suitable for DVI video interfaces, IEEE 1394 FireWire subsystems, and USB 2.0 high-speed ports requiring stable component supply across automotive infotainment, industrial HMIs, and broadcast equipment production cycles.
Supply support for DVIULC6-2M6 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, MEMS, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The DVIULC6-2M6 belongs to ST's Ultra-Low-Capacitance ESD Protection portfolio, engineered specifically to preserve signal fidelity in high-speed digital interfaces while meeting stringent IEC 61000-4-2 immunity requirements.
FAQ
What is the maximum recommended PCB trace length between DVIULC6-2M6 and the protected connector?
ST recommends placing the device within 3 mm of the DVI or USB connector to minimize parasitic inductance. Layouts with >10 mm track length increase clamping voltage by up to 288 V due to L·di/dt effects (Section 3.2), risking downstream IC damage despite rated 15 kV immunity.
Can Pin 5 be connected to GND or VBUS to reduce package inductance?
No - Pin 5 is internally unconnected and must remain floating. Connecting it to VBUS or GND creates a backdrive current path during hot-plug events, potentially damaging upstream TMDS drivers or violating DVI specification DC bias requirements.
Does DVIULC6-2M6 support bidirectional signal flow on I/O pins?
Yes - both I/O1 and I/O2 are symmetrical, low-capacitance, bidirectional ESD clamps. They protect AC-coupled differential signals regardless of direction, validated for DVI transmitter-to-receiver and IEEE 1394 peer-to-peer topologies in Figures 8 and 9.
What reflow profile parameters are mandatory for µQFN assembly?
Peak temperature must not exceed 260 °C for ≤10 seconds; time above 220 °C must be 90–150 seconds; ramp rate limited to 2 °C/s (recommended) and 6 °C/s (max). Exceeding these violates JEDEC J-STD-020 and risks die attach delamination or solder voiding (Section 4.5).
DVIULC6-2M6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 6-UFDFN
- Series:
- DVI
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- 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:
- 0.85pF @ 825MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-µQFN (1.45x1.0)
DVIULC6-2M6 FAQ
1.How can I place an order for DVIULC6-2M6 through Aetrix?
Please submit a Request for Quotation (RFQ) for DVIULC6-2M6 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 DVIULC6-2M6 reliable?
The price and inventory of DVIULC6-2M6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DVIULC6-2M6 is usually 5 days.
3.What payment methods are accepted for DVIULC6-2M6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DVIULC6-2M6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DVIULC6-2M6?
DVIULC6-2M6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DVIULC6-2M6 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 DVIULC6-2M6?
For technical support, including DVIULC6-2M6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DVIULC6-2M6 requirements.
6.How does Aetrix verify that DVIULC6-2M6 is sourced from the original manufacturer or authorized distributors?
All DVIULC6-2M6 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 DVIULC6-2M6 meets industry standards.
7.What is the process for return or replacement of DVIULC6-2M6?
All DVIULC6-2M6 units undergo pre-shipment inspection (PSI). If there is an issue with DVIULC6-2M6, 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 DVIULC6-2M6 part is unused and in its original packaging.
Return procedure for DVIULC6-2M6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DVIULC6-2M6 Tags
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