TPI| Datasheet

TPI, TPI12011N, TPI12011NRL, TPI8011N, TPI8011NRL

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TPI
Tripolar protection for ISDN interfaces
Features

Bidirectional triple crowbar protection Peak pulse current: IPP = 30 A , 10/1000 us Breakdown voltage: TPI80N: 80 V TPI120N: 120 V Available in SO-8 package Low dynamic breakover voltage: TPI8011N: 120 V TPI12011N: 170 V
SO-8

Complies with following standards

CCITT K17-K20 10/700 us, 1.5 kV 5/310 us, 38 A VDE 0433 10/700 us, 2 kV 5/310 us, 50 A VDE 0878 1.2/50 us, 1.5 kV 1/20 us, 40 A IEC 61000-4-2 level 4 0.5/700 us, 1.5 kV 0.2/310 us, 38 A

Benefits

Low capacitance from lines to ground, allowing high speed transmission without signal attenuation Good capacitance balance between lines to ensure longitudinal balance Fixed breakdown voltage in both common and differential modes The same surge current capability in both common and differential modes A particular attention has been given to the internal wire bonding. The "4-point" configuration ensures a reliable protection, eliminating overvoltages introduced by the parasitic inductances of the wiring (LdI/dt), especially for very fast transient overvoltages

Description
Dedicated devices for ISDN interface and high speed data telecom line protection. Equivalent to a triple TrisilTM with low capacitance. Figure 1.
Tip GND GND Ring

Functional diagram
1 2 3 4 8 7 6 5 Tip GND GND Ring

TM: Trisil is a trademark of STMicroelectronics

November 2007

Rev 5

1/9
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