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LCDP1521S Datasheet(PDF) 1 Page - STMicroelectronics

Part No. LCDP1521S
Description  Dual line programmable transient voltage suppressor for SLIC protection
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LCDP1521S Datasheet(HTML) 1 Page - STMicroelectronics

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February 2017
Doc16268 Rev 7
1/13
This is information on a product in full production.
www.st.com
LCDP1521S
Dual line programmable transient voltage suppressor for
SLIC protection
Datasheet - production data
Features
Dual line programmable transient voltage
suppressor with separated gates
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
= 40 A (5/310 μs)
Holding current: IH = 150 mA min.
Benefits
A Trisil™ is not subject to ageing and
provides a fail safe mode in short circuit for a
better protection.
Trisils are used to help equipment to meet
various standards such as UL1950,
IEC 60950 / CSA C22.2, UL1459 and
TIA-968-A (formerly FCC part 68).
Trisils have UL94 V0 resin approved (Trisils
are UL497B approved - file: E136224).
Description
This device has been especially designed to
protect 2 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
-VBAT through the gate. Separated gates allow the
SLICs to be supplied by two different voltages.
Figure 1: Functional diagram
SO-8
Gn1
Gn2
GND
GND
1
2
3
4
8
7
6
5
Line
(TIP1 or RING1)
Line
(TIP2 or RING2)
Line
(RING2 or TIP2)
Line
(RING1 or TIP1)


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