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This is information on a product in full production.

September 2012 Doc ID 018879 Rev 2 1/12

HDMIULC6-4SC6Y

Automotive ultralarge bandwidth ESD protection

Datasheet  production data

Features

■ 4-line 15 kV ESD protection

■ Protects V

BUS

when applicable

■ Ultrahigh bandwidth - no influence on signal

rise and fall times - maximized number of signal

harmonics

■ Very low leakage current: 0.5 µA max.

■ Fast response time compared with varistors

■ SOT23-6L package

■ RoHS compliant

Benefits

■ ESD standards compliance guaranteed at

device level, hence greater immunity at system

level

■ ESD protection of V

BUS

when applicable.

■ High efficiency due to low residual voltage

when confronted by an ESD surge

■ Minimized rise and fall times for maximum data

integrity

■ Consistent D+ / D- signal balance:

– Ultralow impact on intra-, inter-pair skew

– Matching high bit rate HDMI requirements

and ready for future evolution

■ Low PCB space occupation - 9 mm

maximum

footprint

■ Higher reliability offered by monolithic

integration

Complies with these standards:

■ IEC 61000-4-2 level 4

– 15 kV air discharge

– 8 kV (and up to 15 kV) contact discharge

Applications

■ HDMI ports at 1.65 Gb/s and up to 3.2 Gb/s

■ IEEE 1394a, b, or c up to 3.2 Gb/s

■ USB 2.0 ports up to 480 Mb/s (Hi-Speed)

■ Ethernet port: 10/100/1000 Mb/s

■ Video line protection

■ AEC-Q101 qualified

Description

The HDMIULC6-4SC6Y is a monolithic,

application specific discrete device dedicated to

ESD protection of the HDMI connection. It also

offers the same high level of protection for

IEEE 1394a and IEEE 1394b/c, USB 2.0,

Ethernet links, and video lines.

Its ultrahigh cutoff frequency (5.3 GHz) secures a

high level of signal integrity. The device topology

provides this integrity without compromising the

complete protection of ICs against the most

stringent ESD strikes.

SOT23-6L

(JEDEC MO178AB)

www.st.com

Summary of content (12 pages)

PAGE 1
HDMIULC6-4SC6Y Automotive ultralarge bandwidth ESD protection Datasheet  production data Features ■ 4-line 15 kV ESD protection ■ Protects VBUS when applicable ■ Ultrahigh bandwidth - no influence on signal rise and fall times - maximized number of signal harmonics ■ Very low leakage current: 0.5 µA max.
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Characteristics 1 HDMIULC6-4SC6Y Characteristics Figure 1. Functional diagrams I/O1 1 6 I/O4 GND 2 5 VBUS I/O2 3 4 I/O3 When used with an HDMI application, Pin 5 should not be connected to protect against backdrive current flow. SOT23-6L Table 1.
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HDMIULC6-4SC6Y Figure 2. Characteristics Line capacitance versus line voltage (typical values) Figure 3. C(pF) C(pF) 1.0 1.0 F=825MHz Vosc=500mVRMS VBUS OPEN Tj =25 °C 0.9 0.8 0.7 Vosc=30mVRMS Tj =25°C VI-O/GND = 0V VBUS OPEN 0.9 0.8 0.7 0.6 0.6 0.5 0.5 CI/O - GND 0.4 0.4 0.3 0.3 CI/O - GND 0.2 0.2 0.1 CI/O - CI/O 0.1 Data line voltage (v) 0 F(MHz) 0 0.0 Figure 4. Line capacitance versus frequency (typical values) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.
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Application examples 2 HDMIULC6-4SC6Y Application examples Figure 6.
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HDMIULC6-4SC6Y 2.1 Application examples PCB layout considerations For HDMI applications, VCC should not be connected. In this case the capacitor C in Figure 8. is not needed. Figure 8. PCB layout considerations (VCC connection is application dependent) D+1 HDMI 1 D-1 VCC connector GND side C = 100 nF D+2 D-2 HDMIULC6-4SC6 A differential impedance of 100  must be respected in the layout. Both lines of the differential pair should have the same length. Figure 9.
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Technical information HDMIULC6-4SC6Y 3 Technical information 3.1 Surge protection The HDMIULC6-4SC6Y is particularly optimized to perform ESD surge protection based on the rail to rail topology. The clamping voltage VCL can be calculated as follows – VCL+ = VTransil + VF, for positive surges – VCL- = - VF, for negative surges with: VF = VT + Rd.
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HDMIULC6-4SC6Y Technical information It’s the reason why some recommendations have to be followed (see Section 3.3: How to ensure good ESD protection). Figure 10.
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Technical information HDMIULC6-4SC6Y Figure 13. Note: Figure 14. The measurements have been done with the HDMIULC6-4SC6Y in open circuit. Important: An important precaution to take is to put the protection device as close as possible to the disturbance source (generally the connector). 3.4 Crosstalk behavior Figure 15. Crosstalk phenomena RG1 Line 1 VG1 RL1 RG2 α 1 VG1 + β12VG2 Line 2 VG2 RL2 DRIVERS α 2VG2 + β21VG1 RECEIVERS The crosstalk phenomena is due to the coupling between 2 lines.
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HDMIULC6-4SC6Y Technical information Figure 16. Analog crosstalk measurements TEST BOARD NETWORK ANALYSER PORT 2 NETWORK ANALYSER PORT 1 Figure 16 gives the measurement circuit for the analog application. In usual frequency range of analog signals (up to 240 MHz) the effect on disturbed line is less than -45 dB (see Figure 17). Figure 17. Analog crosstalk results 0.00 dB - 30.00 - 60.00 - 90.00 F (Hz) - 120.00 100.0k 1.0M 10.0M 100.0M 1.
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Package information 4 HDMIULC6-4SC6Y Package information ● Epoxy meets UL94, V0 ● Lead-free package In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 3. SOT23-6L dimensions Dimensions Ref. Millimeters Min. Typ. Max. c Inches Min. Typ. Max. A 0.90 1.45 0.
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HDMIULC6-4SC6Y 5 Ordering information Ordering information Table 4. 6 Ordering information Order code Marking Package Weight Base qty Delivery mode HDMIULC6-4SC6Y DL4Y SOT23-6L 16.7 mg 3000 Tape and reel Revision history Table 5. Document revision history Date Revision Changes 24-May-2011 1 First issue. 06-Sep-2012 2 Updated dimension A1 max., b min. and L min. in Table 3.
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HDMIULC6-4SC6Y Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.