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LCP1531 Datasheet

Programmable transient voltage suppressor

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LCP1531
Programmable transient voltage suppressor for SLIC protection
SO-8
Figure 1. LCP1531 functional diagram
TIP 1
Gn
NC
RING
TIP
GND
GND
RING
Datasheet - production data
Features
Dual programmable transient suppressor
Wide negative firing voltage range:
VGn = -175 V max.
Low dynamic switching voltages:
VFP and VDGL
Low gate triggering current: IGT = 5 mA max
Peak pulse current: IPP = 37.5 A (5/310 µs)
Holding current: IH = 150 mA min.
Low space consuming package
Benefits
A Trisil™ is not subject to ageing and provides
a fail-safe mode in short circuit for better
protection.
Trisils are used to help equipment to meet
various standards such as YDT695, GR-1089
and ITU-T K20/21.
Trisils are UL94 V0 resin approved and are
UL497B approved [file: E136224]).
Description
These devices are ideally suited to meet the
protection requirement of VoIP SLICs located in
next generation residential gateways. They can
be used for protecting any ringing SLIC since they
meet the protection standard requirements.
Positive overvoltages are clamped by 2 diodes.
Negative surges are suppressed by 2 thyristors,
their breakdown voltage being referenced to -VBAT
through the gate.
These components present a very low gate
triggering current (IGT) to reduce the current
consumption on printed circuit board during the
firing phase.
TM: Trisil is a trademark of STMicroelectronics
August 2013
This is information on a product in full production.
DocID13397 Rev 5
1/10
www.st.com


STMicroelectronics Electronic Components Datasheet

LCP1531 Datasheet

Programmable transient voltage suppressor

No Preview Available !

Characteristics
1 Characteristics
LCP1531
Standard
Table 1. Standards compliance
Peak
surge
voltage
(V)
Voltage
waveform
Required
peak
current
(A)
Current
waveform
Minimum serial
resistor to meet
standard (Ω)
2500
2/10 µs
500
2/10 µs
GR-1089 Core First level
1000 10/1000 µs 100 10/1000 µs
20
30
GR-1089 Core
Second level
5000
2/10 µs
500
2/10 µs
40
GR-1089 Core
Intra-building
1500
2/10 µs
100
2/10 µs
0
ITU-T-K20/K21
ITU-T-K20 (IEC 61000-4-2)
IEC 61000-4-5
6000
1500
8000
15000
4000
4000
10/700 µs
1/60 ns
10/700 µs
1.2/50 µs
150
37.5
5/310 µs
ESD contact discharge
ESD air discharge
100 5/310 µs
100 8/20 µs
120
0
0
0
67
22
TIA-968-A,
1500 10/160 µs 200 10/160 µs
lightning surge type A
800 10/560 µs 100 10/560 µs
26
17
TIA-968-A,
lightning surge type B
1500
9/720 µs
37.5
5/320 µs
0
Table 2. Thermal resistance
Symbol
Parameter
Rth(j-a) Junction to ambient
Value
120
Unit
°C/W
2/10
DocID13397 Rev 5


Part Number LCP1531
Description Programmable transient voltage suppressor
Maker STMicroelectronics
Total Page 10 Pages
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