hdmiulc6-4sc6y STMicroelectronics, hdmiulc6-4sc6y Datasheet

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hdmiulc6-4sc6y

Manufacturer Part Number
hdmiulc6-4sc6y
Description
Automotive Ultra Large Bandwidth Esd Protection
Manufacturer
STMicroelectronics
Datasheet

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Features
Benefits
Complies with these standards:
May 2011
4 line 15 kV ESD protection
Protects V
Ultra high bandwidth - no influence on signal
rise and fall times - maximised number of signal
harmonics
Very low leakage current: 0.5 µA max.
Fast response time compared with varistors
SOT23-6L packages
RoHS compliant
ESD standards compliance guaranteed at
device level, hence greater immunity at system
level
ESD protection of V
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:
– Ultra low impact on intra-, inter-pair skew
– Matching high bit rate HDMI requirements
Low PCB space occupation - 9 mm
footprint
Higher reliability offered by monolithic
integration
IEC 61000-4-2 level 4
– 15 kV air discharge
– 8 kV (and up to 15 kV) contact discharge
and ready for future evolution
BUS
when applicable
BUS
when applicable.
Automotive ultra large bandwidth ESD protection
2
maximum
Doc ID 018879 Rev 1
Applications
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 ultra high 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.
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
HDMIULC6-4SC6Y
(JEDEC MO178AB)
SOT23-6L
www.st.com
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hdmiulc6-4sc6y Summary of contents

Page 1

... Ethernet port: 10/100/1000 Mb/s ■ Video line protection ■ AEC-Q101 qualified Description The HDMIULC6-4SC6Y is a monolithic, 2 maximum 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 ...

Page 2

Characteristics Figure 1. Functional diagrams I/O1 GND I/O2 Table 1. Absolute ratings Symbol V Peak pulse voltage PP T Storage temperature range stg T Maximum junction temperature j T Lead solder temperature (10 seconds duration) L Table 2. Electrical ...

Page 3

Figure 2. Line capacitance versus line voltage (typical values) C(pF) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Data line voltage (v) 0 0.0 0.5 1.0 1.5 2.0 Figure 4. Relative variation of leakage current versus junction temperature ...

Page 4

... Application examples Figure 6. HDMI Digital single link application using HDMIULC6-4SC6Y Host (Set Top Box, DVD player, PC) video audio Multimedia controller Ctrl / status CEC SCL Vcc 5V SDA HPD Figure 7. T1/E1/Ethernet protection Tx Rx 4/12 HDMI Tx0- Tx0+ TMDS HDMI connectors transmitter Tx1- Tx1+ Tx2- ...

Page 5

... A differential impedance of 100 Ω must be respected in the layout. Both lines of the differential pair should have the same length. Figure 9. SOT23-6L Footprint dimensions (in mm) should not be connected. In this case the capacitor connection is application dependent) CC D+1 1 D-1 GND D+2 D-2 HDMIULC6-4SC6 1.20 1.10 [0.047] [0.043] 0.60 [0.023] [0.037] 2.30 [0.091] 3.50 [0.138] Doc ID 018879 Rev 100 nF ...

Page 6

... 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 V – – with forward drop voltage and Transil BR Calculation example We assume that the value of the dynamic resistance of the clamping diode is typically: = 0.5 Ω ...

Page 7

... BR 3.3 How to ensure good ESD protection While the HDMIULC6-4SC6Y provides a high immunity to ESD surge, an efficient protection depends on the layout of the board. In the same way, with the rail to rail topology, the track from data lines to I/O pins, from V as short as possible to avoid over voltages due to parasitic phenomena (see Figure 11 for layout considerations) ...

Page 8

... Figure 13. Note: 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 The crosstalk phenomena is due to the coupling between 2 lines. The coupling factor (β ...

Page 9

... As the HDMIULC6-4SC6Y is designed to protect high speed data lines, it must ensure a good transmission of operating signals. The frequency response attenuation information and shows that the HDMIULC6-4SC6Y is well suitable for data line transmission up to 3.2 Gb/s. Doc ID 018879 Rev 1 TEST BOARD TEST BOARD NETWORK ANALYSER ...

Page 10

Package information 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 ...

Page 11

... Ordering information Table 4. Ordering information Order code HDMIULC6-4SC6Y 6 Revision history Table 5. Document revision history Date 24-May-2011 Marking Package Weight DL4Y SOT23-6L 16.7 mg Revision 1 First issue. Doc ID 018879 Rev 1 Base qty Delivery mode 3000 Tape and reel Changes 11/12 ...

Page 12

... 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. ...

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