TBU-PL-75-100-WH Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – Negative Battery Voltage SLIC Protection

Solution Products
TBU-PL075-100-WH
MOV-10D361K
Design Kit
PN-DESIGNKIT-38
Negative Battery Voltage SLIC Protection
ITU-T Solution
Objective
The SLIC (Subscriber Line Interface
Circuit) provides all the BORSCHT
functions such as battery, ringing and
supervision between the codec and
telephone hand set. This PortNote®
solution protects negative battery
voltage solutions against surge and
power contact threats.
Solution
1 TBU® High-Speed Protector:
TBU-PL075-100-WH
2 MOV Devices: MOV-10D361K
Compliance
ITU-T Basic K.20, K.21, K.45.
• Maximum 230 V_rms, 23 A, 900 seconds withstand.
• 600 V_rms, 1 A, 0.2 seconds withstand.
• Increased surge withstand to 4 kV 10/700 µs
without a primary protector.
Alternate Recommendations
Other PortNote® Solutions:
• Dual Supply Voltage SLIC Protection - ITU-T Solution
• Negative Battery Voltage SLIC Protection -
GR-1089-CORE Intra-building Solution
• SLIC Protection - GR-1089-CORE Intra-building Solution
Benefit
This solution provides a high level of protection in
a small PCB area.
GND
V_DD
SLIC_Tip
Tip
MOV-10D361K
SLIC
TBU-PL075-100-WH
RJ11
SLIC_Ring
MOV-10D361K
Ring
-V_BAT
V_SS
The schematic above illustrates the application protection and does not constitute the complete circuit design. Customers should verify
actual device performance in their specific applications.
Note: The Le9500, Le9520 and Le9530 (VE950 series) require a 200 mA I_trigger TBU® High-Speed Protector
for normal operation. All other SLICs use 100 mA I_trigger TBU® HSP devices.
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COPYRIGHT© 2011 • BOURNS, INC. • 10/11 • e/CPK1129 • “PortNote”is a registered service mark of Bourns, Inc.
“Bourns” and “TBU” are registered trademarks of Bourns, Inc. in the U.S. and other countries.
Bourns® PortNote® solutions provide protection
recommendations for typical port threats.
For more information, go to:
www.bourns.com
or email: [e-mail]