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PDF USB6B2RL Data sheet ( Hoja de datos )
| Número de pieza | USB6B2RL | |
| Descripción | DATA LINES PROTECTION | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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®
Application Specific Discretes
A.S.D.
USB6Bx
DATA LINES PROTECTION
APPLICATIONS
Where transient overvoltage protection in sensi-
tive equipment is required, such as:
- Universal Serial Bus ports
- RS-423 interfaces
- RS-485 interfaces
- ISDN equipment
- T1/E1 line cards
- HDSL / ASDL interfaces
FEATURES
n Full diode bridge with integrated clamping protection
n Breakdown voltage : VBR = 6V min.
n Peak pulse power dissipation : PPP = 500W (8/20µs)
n Very low capacitance, compatible with high debit
data or signal rates.
DESCRIPTION
In order to prevent fast transients from leading
to severe damages in a high speed data sys-
tem, a specific protection has been developed
by STMicroelectronics.
The USB6Bx protects the two input lines
against overvoltage. Besides, this device also
keeps the power rails in a safe limit thanks to
the integrated Transil diode.
BENEFITS
n Provides protection for each line and between
the supply voltage and GND : 25A , 8/20µs.
n High ESD protection level : up to level 3 per
MIL STD 883C-Method 3015-6
n Separated inputs and outputs (so-called 4-point
structure) to improve ESD susceptibility.
n Comprehensive package pin-out for immediate
implementation.
COMPLIES WITH THE FOLLOWING STANDARDS:
MIL STD 883C - Method 3015-6
class 3 C = 100 pF R = 1500 Ω
3 positive strikes and 3 negative strikes (F = 1 Hz)
IEC-1000-4-2 level 4
15 kV (air discharge)
8 kV (contact discharge)
SO8
DIL8
FUNCTIONAL DIAGRAM
Vcc
I/01
I/02
GND
TM: ASD and TRANSIL are trademarks of ST Microelectronics.
August 1999 Ed : 5A
Vcc
I/01
I/02
GND
1/9
1 page  
TELECOM AND DATACOM APPLICATIONS
ISDN U interface protection.
USB6Bx
LT
DC Power
Source
3* SMP100
USB6Bx
T1 / E1 Line Card Protection.
RTIP
USB6B1
RRING
TTIP
TRING
USB6B1
SMP75-8 or SMP100-8
SMP75-8 or SMP100-8
High Speed Line Driver / Receiver Protection.
SM6T6V8A
+5V
INPUT
DRIVER
USB6B1
USB6B1
+5V
SM6T6V8A
RECEIVER
OUTPUT
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet USB6B2RL.PDF ] | |
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