
TPN3021
ApplicationSpecific Discretes
A.S.D.
FEATURES
TRIPLECROWBARPROTECTION
PEAKPULSECURRENT:I
VERYLOW CAPACITANCE:
C = 30 pF
PROTECTS HIGH-SPEED LINE DRIVERS /
RECEIVERS
DESCRIPTION
Dedicated to dataline protection, this device
provides a triple protection function. It ensures
the same protection capability with the same
breakdown voltage both in common mode and
in differential mode.
Witha stand-off voltage of 28Vand a very low capacitance,thisdevice isable to protecthigh-speed
interfacessuchas T1/E1interface.
=30A,10/1000µs
PP
TRIPOLAR OVERVOLTAGE PROTEC-
TION FOR NETWORK INTERFACES
SO8
SCHEMATICDIAGRAM
I/O
1
1
NC
8
COMPLIESWITHTHEFOLLOW INGSTANDAR DS:
NC
NC
2
7
- IEC801-2 15kV (airdischarge)
- IEC801-4 40A (repetitive2.5kHz)
- IEC801-5 1.2/50µs 4kV
8/20µs 100A
ABSOLUTEMAXIMUMRATINGS (T
amb
=25°C)
NC
I/O
3
4
2
GND
6
NC
5
Symbol Parameter Value Unit
I
pp
Peakpulsecurrent 10/1000µs
8/20 µs
T
stg
Tj
T
L
Storagetemperaturerange
Maximumjunctiontemperature
Maximumleadtemperaturefor solderingduring 10s 260 °C
30
150
- 40 to + 150
150
THERMAL RESISTANCE
Symbol Parameter Value Unit
R
th(j-a)
TM: ASD is a trademark of SGS-THOMSON Microelectronics.
February 1998 - Ed : 2
Junctionto ambient 170 °C/W
A
A
°C
°C
1/4

TPN3021
ELECTRICALCHARACTERISTICS
Symbol Parameter
V
RM
V
BO
V
BR
I
H
I
BO
I
RM
I
PP
Stand-offvoltage
Breakovervoltage
Breakdownvoltage
Holdingcurrent
Breakovercurrent
Leakagecurrentat V
Peak pulsecurrent
C Capacitance
αT Temperaturecoefficient
Type I
RM
@V
RM
max.
note1
µAV VmAmApFpF10
(T
RM
amb
=25°C)
V
BO@IBO
max.
I
H
min.
note2
I
I
PP
I
BO
I
H
I
RM
C
typ. max.
note3
V
RM BO
αT
typ.
note 4
-4
V
V
/°C
TPN3021 4 28 38 100 30 25 30 8
Note 1 :
Between any I/Opin and Ground or between I/O1and I/O2.
Note 2 :
See the functional holding current (IH) test circuit.
Note 3 :
Between any I/Opin and GNDor betweenI/O1and I/O2at 0V bias, V
Note 4 :
∆VBO= αTx(T
-25) x VBO(25°C).
amb
=30 mV, F = 1 MHz.
RMS
FUNCTIONAL HOLDINGCURRENT (IH) TEST CIRCUIT : GO-NOGO TEST
R
-V
P
D.U.T
V
BAT
=
-
48 V
Thisis a GO-NOGO test which allowsto confirmthe holding current(IH)levelin a functionaltest circuit.
Surge generator
TESTPROCEDURE :
- Adjust the current level at the I
- Fire the D.U.T.with a surgecurrent : I
valueby short circuitingthe D.U.T.
H
= 10A,10/1000µs.
pp
- The D.U.T.will comeback to theoff-state within a durationof 50ms max.
2/4

TPN3021
APPLICATION CIRCUIT :
R1
1
R12
LINE SIDE
Fig.1 :
Surgepeak current versus overload
R13
R14
T1/E1InterfaceProtection
duration.
I (A)
TSM
8
7
6
5
4
3
2
1
0
1E-2 1E-1 1E+0 1E+1 1E+2 1E+3
t(s)
F=50Hz
Tj initial=25°C
TPN3021
TPN3021
R21
R22
R23
R24
+5V
+5V
+5V
LOGIC SIDE
+5V
DA108S1
3/4

TPN3021
ORDERCODE
TPN 30 2 1 RL
TRIPOLAR
PROTECTION
FORNETWORK
NUMERICALCODE
Marking
Type Marking
TPN3021 TPN302
PACKAGE MECHANICAL DATA
SO8(Plastic)
VERSION
PACKAGING:
RL = Tapeand reel
=Tube
PACKAGE:
1 =SO 8 PLASTIC.
DIMENSIONS
REF.
Millimetres Inches
Min. Typ. Max. Min. Typ. Max.
A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65 0.065
b 0.35 0.48 0.014 0.019
b1 0.19 0.25 0.007 0.010
C 0.50 0.020
c1 45°(typ)
D 4.8 5.0 0.189 0.197
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 3.81 0.150
F 3.8 4.0 0.15 0.157
L 0.4 1.27 0.016 0.050
M 0.6 0.024
S8
°
(max)
Packaging=
or tape and reel.
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor forany infringementof patents or other rights ofthird parties which may result from its use. No
license is granted by implication or otherwise under any patent or patentrights ofSGS-THOMSON Microelectronics. Specificationsmentioned
in this publication are subject to change without notice. This publicationsupersedes and replaces all information previously supplied.
SGS-THOMSONMicroelectronics products are notauthorizedforuse ascriticalcomponents in life support devices or systems without express
writtenapproval of SGS-THOMSON Microelectronics.
Australia- Brazil - Canada - China - France - Germany- Italy - Japan - Korea -Malaysia - Malta - Morocco
The Netherlands - Singapore - Spain -Sweden - Switzerland - Taiwan - Thailand - United Kingdom -U.S.A.
4/4
Productssupplied in antistatic tubes
1998 SGS-THOMSON Microelectronics - Printed in Italy - All rights reserved.
SGS-THOMSON MicroelectronicsGROUP OF COMPANIES
Weight=
0.08 g