LCP154DJF
Programmable transient voltage suppressor for SLIC protection
5LQJ
*Q
1&
7LS
3RZHU)/$7[
Features
•
Programmable transient suppressor
•
Wide negative firing voltage range: V
Gn
= -
175 V max.
•
Low dynamic switching voltages: V
FP
and V
DGL
•
Low gate triggering current: I
GT
= 5 mA max.
•
Peak pulse current:
– I
PP
= 100 A (10/1000 µs)
– I
PP
= 150 A (5/310 µs)
– I
PP
= 500 A (2/10 µs)
•
Holding current: I
H
= 150 mA min.
Benefits
• Trisil™ is not subject to ageing and provides a fail safe mode in short-circuit for a better level of protection.
• Trisils are used to ensure equipment meets various standards such as UL60950,
IEC 60950 / CSA C22.2, UL1459, TIA-968-A
(formerly FCC part 68)
• Trisils have UL94 V0 approved resin (Trisils are UL497B approved [file: E136224]).
Datasheet
-
production data
Description
This device has been especially designed to protect new high voltage, as well as classical
SLICs, against transient overvoltages.
Positive overvoltages are clamped by 2 diodes.
Negative surges are suppressed by 2 thyristors, their breakdown voltage being referenced to -V
BAT through the gate.
LCP154DJF is specified to comply with
ITU-T K20/21/45 and GR1089-Core when associated with Cooper Bussmann Telecom
Circuit Protector fuse TCP 1.25 A.
LCP154DJF is packaged in a PowerFLAT™ 5x6 to meet IEC/UL 60950 clearance requirements.
Figure 1. Functional diagram
7RSYLHZ
*1'
7LS 1& *Q 5LQJ
TM: Trisil is a trademark of STMicroelectronics
October 2015
This is information on a product in full production.
DocID028213 Rev 1 1/13 www.st.com
Characteristics
1 Characteristics
LCP154DJF
Standard
GR-1089 Core First level
GR-1089 Core
Second level
GR-1089 Core
Intra-building
ITU-T-K20/K21
ITU-T-K20 (IEC 61000-4-2)
IEC 61000-4-5
TIA-968-A, lightning surge type A
TIA-968-A, lightning surge type B
1500
6000
1500
8000
15000
4000
4000
1500
800
1000
Table 1. Standards compliance
Peak surge voltage
(V)
Voltage waveform
Required peak current
(A)
Current waveform
Minimum serial resistor to meet standard (
Ω
)
2500
1000
2/10 µs
10/1000 µs
500
100
2/10 µs
10/1000 µs
0
0
5000 2/10 µs 500 2/10 µs 0
2/10 µs 100 2/10 µs
10/700 µs
1/60 ns
10/700 µs
1.2/50 µs
10/160 µs
10/560 µs
150
37.5
5/310 µs
ESD contact discharge
ESD air discharge
100
100
200
100
5/310 µs
8/20 µs
10/160 µs
10/560 µs
9/720 µs 25 5/320 µs
0
0
0
0
0
0
0
0
0
0
2/13 DocID028213 Rev 1
LCP154DJF Characteristics
Symbol
Table 2. Absolute ratings (T amb
= 25 °C)
Parameter Value Unit
I
I
PP
TSM
Peak pulse current
(1)
10/1000 µs
8/20 µs
10/560 µs
5/310 µs
10/160 µs
1/20 µs
2/10 µs
Non repetitive surge peak on-state current
(50 Hz sinusoidal)
(1)
t = 10 ms t = 0.2 s t = 1 s t = 2 s t = 15 min t = 30 min
35
18
12
10
4
3
100
400
140
150
200
400
500
A
A
V
GN
T stg
T j
T
L
Negative battery voltage
Storage temperature range
Operating junction temperature range
Maximum lead temperature for soldering during 10 s.
-175
-55 to +150
-55 to +150
260
1.
The rated current values may be applied either to the RING to GND or to the Tip to GND terminal pairs.
Additionally, both terminal pairs may have their rated current values applied simultaneously (in this case the GND terminal current will be twice the rated current value of an individual terminal pair).
V
°C
°C
Figure 2. Electrical characteristics (definitions)
I
I
R
V
F
C
Symbol
I
GT
V
FP
V
GT
V
F
I
RG
I
H
V
RG
V
DGL
I
PP
=
=
=
=
=
=
=
=
=
=
=
=
Parameter
Gate triggering current
Peak forward voltage LINE / GND
Gate triggering voltage
Forward drop voltage LINE /GND
Reverse leakage current GATE / LINE
Holding current
Reverse voltage GATE / LINE
Dynamic switching voltage GATE / LINE
Peak pulse current
Breakdown current
Forward drop voltage LINE / GND
Capacitance LINE /GND
V
R V
F
I
R
I
H
I
PP
V
DocID028213 Rev 1 3/13
13
Characteristics LCP154DJF
,
33
Figure 3. Pulse waveform
3XOVHZDYHIRUPV
WU V
WS V
WU WS W
Symbol
Table 3. Parameters (T amb
= 25 °C unless otherwise specified)
Test conditions
I
GT
I
H
V
GT
(1)
V
I
RG
DGL
(1)
V
LINE
= -48 V
V
Gn
= -48 V at I
GT
V
V
V
RG
RG
Gn
= -175 V
= -175 V
= -48 V
(1)
10/700 µs
2/10 µs
T j
= 25 °C
T j
= 85 °C
I
PP
= 150 A
I
PP
= 200 A
V
V
F
FP(I)
I
R
C
C
G
I
F
= 5 A
10/700 µs
2/10 µs
V
Gn / LINE
= -1 V V
LINE
= -175 V
V
Gn / LINE
= -1 V V
LINE
= -175 V
V
LINE
= -50 V, V
RMS
= 1 V, f = 1 MHz
V
LINE
= -2 V, V
RMS
= 1 V, f = 1 MHz
Gate decoupling capacitance t = 500 µs
I pp
= 150 A
I pp
= 200 A
T
T j j
= 25 °C
= 85 °C
1.
The oscillations with a time duration lower than 50 ns are not taken into account.
Min
0.1
150
100
Typ
35
100
220
Max
5
12
20
3
7
10
5
50
2.5
5
50
Unit mA mA
V
µA
µA pF nF
V
V
V
4/13 DocID028213 Rev 1
LCP154DJF Technical information
Figure 4. Example of PCB layout based on LCP154DJF protection
To line side
>2 mm
To
SLIC side
GND 100 nF
GND
Figure 4 shows the classical PCB layout used to optimize line protection. The 2 mm
distance is used to comply with IEC/UL 60950 clearance requirements.
The capacitor C is used to speed up the crowbar structure firing during the fast surge edges.
This allows minimization of the dynamic breakover voltage at the SLIC Tip and Ring inputs during fast strikes. Note that this capacitor is generally present around the SLIC - Vbat pin.
So to be efficient it has to be as close as possible from the LCP Gate pin and from the reference ground track (or plan).
The schematics of
Figure 5 give the topology used to protect all SLICs according to ITU-T
K20/21/45 and GR1089-Core.
Figure 5. Protection of high voltage SLIC
[7&3$
&RRSHU %XVVPDQ
)XVH
/&3'-)
7,3
7,3
*Q
6/,&
Q)
5,1*
5,1*
5LQJVLJQDO
9EDW
DocID028213 Rev 1 5/13
13
Technical information LCP154DJF
Figure 6. Surge peak current versus duration Figure 7. Relative variation of holding current versus junction temperature
,
760
$ ,
+
>7
M
@,
+
>7
M
&@
I +]
7
-
LQLWLDO &
7
M
&
6/13 DocID028213 Rev 1
LCP154DJF Package information
•
Epoxy meets UL94, V0
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
® specifications, grade definitions and product status are available at: www.st.com
.
ECOPACK
®
is an ST trademark.
DocID028213 Rev 1 7/13
13
Package information
3.1 PowerFLAT™ 5x6 package information
Figure 8. PowerFLAT™ 5x6 package outline
LCP154DJF
8/13 DocID028213 Rev 1
LCP154DJF
Ref
E2 e
L
K
M
N
O
P
Q
R
A
A1
A2 b
D
E
D2
Package information
0.50
2.25
5.75
4.90
0.40
1.10
0.40
0.35
0.30
5.0
5.95
4.25
2.56
Min.
0.80
0.02
Table 4. PowerFLAT™ 5x6 mechanical data
Dimensions
Millimeters
Typ.
Max.
1.00
0.05
Min.
0.315
0.008
Inches
Typ.
0.25
0.098
0.50
5.4
6.35
4.45
2.76
0.118
1.969
2.343
1.673
1.008
1.27
0.500
0.80
5.95
5.10
0.60
1.30
0.60
0.65
0.197
0.886
2.264
1.929
0.157
0.433
0.157
0.138
Max.
0.394
0.020
0.197
2.126
2.500
1.752
1.087
0.315
2.343
2.008
0.236
0.512
0.236
0.256
DocID028213 Rev 1 9/13
13
Package information LCP154DJF
Figure 9. PowerFLAT™ 5x6 recommended footprint (all dimensions are in mm.)
10/13 DocID028213 Rev 1
LCP154DJF
Figure 10. Marking
3LQ
£
[ [ [ [ [ [
] ] V V V \ Z Z
;;;;;0DUNLQJ
==0DQXIDFWXULQJ ORFDWLRQ
666VHTXHQFLDO QXPEHU
<<HDU
::ZHHN
Package information
DocID028213 Rev 1 11/13
13
Ordering information LCP154DJF
Order code
LCP154DJF
Marking
Table 5. Ordering information
Package Weight Base qty
CP154 PowerFLAT 5x6 91 mg 3000
Delivery mode
Tape and reel
Date
13-Oct-2015
Revision
Table 6. Document revision history
Changes
1 First issue.
12/13 DocID028213 Rev 1
LCP154DJF
IMPORTANT NOTICE – PLEASE READ CAREFULLY
STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on
ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products.
No license, express or implied, to any intellectual property right is granted by ST herein.
Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product.
ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners.
Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2015 STMicroelectronics – All rights reserved
DocID028213 Rev 1 13/13
13
