USBLC6-4SC6 STMicroelectronics, USBLC6-4SC6 Datasheet

IC ESD PROTECTION HS SOT23-6

USBLC6-4SC6

Manufacturer Part Number
USBLC6-4SC6
Description
IC ESD PROTECTION HS SOT23-6
Manufacturer
STMicroelectronics
Datasheet

Specifications of USBLC6-4SC6

Voltage - Working
5V
Voltage - Clamping
6V
Technology
Mixed Technology
Number Of Circuits
4
Applications
USB
Package / Case
SOT-23-6
Polarity
Bidirectional
Channels
4 Channels
Clamping Voltage
17 V
Operating Voltage
5 V
Breakdown Voltage
6 V
Termination Style
SMD/SMT
Peak Surge Current
5 A
Capacitance
3.5 pF
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Dimensions
1.75 mm W x 3.05 mm L x 1.45 mm H
Diode Type
ESD Protection
Clamping Voltage Vc Max
17V
Diode Case Style
SOT-23
No. Of Pins
6
Standoff Voltage
5V
Filter Terminals
SMD
Breakdown Voltage Min
6V
Rohs Compliant
Yes
Clamping Voltage 8/20us Max
17V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-4492-2

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Features
Benefits
Complies with the following standards
February 2008
4 data lines protection
Protects V
Very low capacitance: 3 pF typ.
SOT23-6L package
RoHS compliant
Very low capacitance between lines to GND for
optimized data integrity and speed
Low PCB space consumption, 9 mm²
maximum foot print
Enhanced ESD protection. IEC 61000-4-2 level
4 compliance guaranteed at device level,
hence greater immunity at system level
ESD protection of V
flowing to Ground when ESD event occurs on
data line
High reliability offered by monolithic integration
Low leakage current for longer operation of
battery powered devices
Fast response time
Consistent D+ / D- signal balance:
– Best capacitance matching tolerance
– Compliant with USB 2.0 requirements
IEC 61000-4-2 level 4:
– 15 kV (air discharge)
– 8 kV (contact discharge)
I/O to GND = 0.015 pF
< 1 pF
BUS
BUS
. Allows ESD current
Very low capacitance ESD protection
Rev 3
Applications
Description
The USBLC6-4SC6 is a monolithic application
specific device dedicated to ESD protection of
high speed interfaces, such as USB 2.0, Ethernet
links and video lines.
Its very low line capacitance secures a high level
of signal integrity without compromising in
protecting sensitive chips against the most
stringent characterized ESD strikes.
Figure 1.
USB 2.0 ports up to 480 Mb/s (high speed)
Backwards compatible with USB 1.1 low and
full speed
Ethernet port: 10/100 Mb/s
SIM card protection
Video line protection
Portable electronics
Functional diagram
GND
I/O2
I/O1
1 1
2
3
SOT23-6L
USBLC6-4
6
5
4
I/O4
V
I/O3
BUS
www.st.com
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Related parts for USBLC6-4SC6

USBLC6-4SC6 Summary of contents

Page 1

... Video line protection ■ Portable electronics Description The USBLC6-4SC6 is a monolithic application specific device dedicated to ESD protection of high speed interfaces, such as USB 2.0, Ethernet links and video lines. Its very low line capacitance secures a high level of signal integrity without compromising in protecting sensitive chips against the most stringent characterized ESD strikes ...

Page 2

... IEC 61000-4-2 contact discharge MIL STD883C-Method 3015 °C) amb Parameter Test Conditions BUS 8/20 µs PP Any I/O pin to GND 8/20 µs PP Any I/O pin to GND USBLC6-4 Value Unit -55 to +150 °C -40 to +125 °C 260 °C Value Unit Min. Typ. Max 150 0. ...

Page 3

... USBLC6-4 Figure 2. Capacitance versus voltage (typical values) C(pF) 5.0 4.5 4.0 3.5 C =I/O-GND O 3.0 2.5 C =I/O-I/O j 2.0 1.5 1.0 0.5 Data line voltage (V) 0.0 0.0 0.5 1.0 1.5 2.0 2.5 Figure 4. Relative variation of leakage current versus junction temperature (typical values =25°C] ...

Page 4

... Technical information 2 Technical information 2.1 Surge protection The USBLC6-4SC6 is particularly optimized to provide surge protection based on the rail to rail topology. The clamping voltage TRANSIL with forward drop voltage Calculation example We assume that the value of the dynamic resistance of the clamping diode is typically 0.5 ...

Page 5

... TRANSIL 2.3 How to ensure good ESD protection While the USBLC6-4SC6 provides high immunity to ESD surge, 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 possible to avoid overvoltages due to parasitic phenomena (see layout considerations) Figure 7 ...

Page 6

... Figure 9. Remaining voltage after the USBLC6-4SC6 during positive ESD surge Note: The measurements have been done with the USBLC6-4SC6 in open circuit. Important: A good precaution to take is to put the protection device as close as possible to the disturbance source (generally the connector). 2.4 Crosstalk behavior 2 ...

Page 7

... As the USBLC6-4SC6 is designed to protect high speed data lines, it must ensure a good transmission of operating signals. The frequency response information and shows that the USBLC6-4SC6 is well suitable for data line transmission up to 480 Mbit/s while it works as a filter for undesirable signals like GSM (900 MHz) frequencies, for instance ...

Page 8

... Technical information 2.5 Application examples Figure 14. USB 2.0 port application diagram using USBLC6-4SC6 DEVICE- UPSTREAM TRANSCEIVER SW V BUS + R X LS/ LS/ GND LS/ LS/FS - DEVICE- UPSTREAM TRANSCEIVER SW V BUS + R X LS/ LS/ GND LS/ LS/FS - Mode SW Low Speed LS Open Full Speed FS Closed High Speed HS Closed then open Figure 15 ...

Page 9

... USBLC6-4 2.6 PSPICE model Figure 16. shows the PSPICE model of one USBLC6-4SC6 cell. In this model, the diodes are defined by the PSPICE parameters given in Figure 16. PSPICE model LIO LIO RIO RIO io1 io1 LGND LGND RGND RGND GND GND LIO LIO RIO RIO ...

Page 10

... Ordering information scheme 3 Ordering information scheme Figure 19. Ordering information scheme Product Designation Low capacitance Breakdown Voltage Volts Number of lines protected lines Package SC6 = SOT23-6L 10/13 USBLC6-4 USB SC6 ...

Page 11

... USBLC6-4 4 Package information ● Epoxy meets UL94 order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...

Page 12

... Ordering information 5 Ordering information Table 4. Ordering information Ordering code USBLC6-4SC6 6 Revision history Table 5. Document revision history Date 10-Dec-2004 28-Feb-2005 04-Feb-2008 12/13 Marking Package Weight UL46 SOT23-6L 16.7 mg Revision 1 First issue. 2 Minor layout update. No content change. Updated operating junction temperature range in absolute ratings, page 2 ...

Page 13

... USBLC6-4 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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