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TPP25011
®
UNIDIRECTIONAL FUNCTION
PROGRAMMABLE BREAKDOWN VOLTAGE
UP TO 250 V
PROGRAMMABLE CURRENT LIMITATION
FROM 40 mA TO 500 mA
SURGE CURRENT CAPABILITY
IPP = 30A 10/1000 µs
FEATURES
SO-8
Dedicated to sensitive telecom equipment protec-
tion, this device can provide both voltage and cur-
renttriggeredprotectionwithaverytighttolerance.
Thebreakdownvoltage canbe easily programmed
by using an external zener diode.
A multiple protection mode can be also performed
when using several zener diodes, providing to
each line interface an optimized protection level.
The current limiting function is achieved with the
use of a resistor between the gate and the cath-
ode. The value of the resistor will determine the
level of the desired current.
DESCRIPTION
SCHEMATIC DIAGRAM
OVERVOLTAGE and OVERCURRENT
PROTECTION for TELECOM LINE
October 2003 - Ed: 5
Application Specific Discretes
A.S.D.™
TM: ASD is trademarks of STMicroelectronics.
CCITT K17 : 10/700 µs 1.5 kV
5/310 µs38A
VDE 0433 : 10/700 µs2kV
5/310 µs 40 A (*)
CNET : 0.5/700 µs 1.5 kV
0.2/310 µs38A
FCC part 68 : 2/10 µs 2.5 kV
2/10 µs 75 A (*)
BELLCORE
TR-NWT-000974 : 10/1000 µs1kV
10/1000 µs 30 A (*)
(*) with series resistors or PTC.
COMPLIES WITH THE FOLLOWING STANDARDS :
TPP25011
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Symbol Parameter Value Unit
Rth (j-a) Junction to ambient 170 °C/W
THERMAL RESISTANCES
Symbol Parameter Value Unit
IPP Peak pulse current (see note 1) 10/1000µs
5/310µs
2/10µs
30
40
75
A
ITSM Non repetitive surge peak on-state current
(F = 50Hz) tp= 10ms
t=1s 5
3.5 A
Tstg
TjStorage temperature range
Maximum junction temperature -55to+150
150 °C
ABSOLUTE MAXIMUM RATINGS (Tamb =2C)
Note 1 : Pulse waveform :
10/1000µst
r
=10µst
p
=1000µs
5/310µst
r
=5µst
p
=310µs
2/10µst
r
=2µst
p
=10µs
100
50
%IPP
tt
rp
0t
TPP25011
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Symbol Parameter
VRM Stand-off voltage
IRM Leakage current at stand-off voltage
VBR Breakdown voltage
VBO Breakover voltage
IHHolding current
IBO Breakover current
IPP Peak pulse current
VGN Gate voltage
IGGate triggering current
CCapacitance
ELECTRICAL CHARACTERISTICS (Tamb = 25°C)
Note 1: See the reference test circuit 1.
Note 2: See test circuit 2.
Note 3: VR= 5V, F = 1MHz
Type IRM @V
RM VBR @I
RV
BO @I
BO IHC
max. min. max. min.
note1 max. min.
note 2 max.
note 3
µAV VmAVmAmAmApF
TPP25011 6 60 250 1 340 15 200 180 100
1 - OPERATION WITHOUT GATE
Type VGN @I
GN =30mA I
G
min. max. min. max.
note 4 VA-C = 100 V
VVmAmA
TPP25011 1.05 1.35 5 40
2 - OPERATION WITH GATE
TPP25011
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REFERENCE TEST CIRCUIT 1 :
FUNCTIONAL HOLDING CURRENT (IH) TEST CIRCUIT2=GO-NOGO TEST
220V
static
relay.
R1
R2
240
140
D.U.T VBO
measure
IBO
measure
tp =20ms
K
Transformer
220V/800V
5A
Auto
Transformer
220V/2A
Vout
R
-V
P
V
BAT =-48V
Surge generator
D.U.T.
TEST PROCEDURE :
Pulse Test duration (tp = 20ms):
- For Bidirectional devices = Switch K is closed
- For Unidirectional devices = Switch K is open.
VOUT Selection
- Device with VBO <200 Volt
-V
OUT = 250 VRMS,R
1= 140 .
- Device with VBO 200 Volt
-V
OUT = 480 VRMS,R
2= 240 .
This is a GO-NOGO Test which allows to confirm the holding current (IH) level in a functional
test circuit.
TEST PROCEDURE :
1) Adjust the current level at the IHvalue by short circuiting the AK of the D.U.T.
2) Fire the D.U.T with a surge Current : Ipp = 10A , 10/1000 µs.
3) The D.U.T will come back off-state within 50 ms max.
TPP25011
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TPP250
APPLICATION CIRCUIT
Overvoltage protection and current limitation
CURRENT TOLERANCE
R
( ± 5%)
IT
mA
min
IT
mA
max
3.00
3.30
3.60
3.90
4.30
4.70
5.10
5.60
6.20
6.80
7.50
8.20
9.10
10.10
11.00
12.00
13.00
15.00
16.00
18.00
20.00
22.00
24.00
27.00
30.00
338
308
283
261
238
218
201
184
166
152
138
127
115
104
96
88
82
72
68
61
55
50
47
42
38
514
471
435
404
370
342
319
294
269
249
229
213
196
181
169
158
149
135
129
119
111
105
99
93
87
LOAD
Line -+
Table below gives the tolerance of the limited current IT for each standardized resistor value.
TPP25011
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Telephone set protection
PROTECTION MODES :
OFF HOOK = Ringer circuit protection is insured with intrinsic breakdown voltage at 250 V
ON HOOK =In dialing mode and in conversation mode,the breakdown voltage of TPP250 can beadapted
at different levels with zener diodes.
ORDER CODE
TPP 250 1 1 RL
Telecom
Programmable
Protection
Breakdown voltage Version
Package:
1 = SO-8 Plastic
Packaging:
RL = Tape & reel
= Tube
TPP25011
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Packaging : Products supplied antistatic tubes or
tape and reel.
Weight :0.08g
Informationfurnished isbelievedto beaccurate and reliable.However, STMicroelectronics assumesno responsibilityfor the consequences of
useof such information norfor any infringement of patents or other rights of third parties which may result from its use.No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not au-
thorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics.
All other names are the property of their respective owners.
© 2003 STMicroelectronics - All rights reserved.
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PACKAGE MECHANICAL DATA
SO-8 Plastic
REF. DIMENSIONS
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
S (max)
Package Type Marking
SO-8 TPP25011 TPP250
MARKING