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LCP1521S Datasheet(PDF) 1 Page - STMicroelectronics

Part # LCP1521S
Description  PROGRAMMABLE TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LCP1521S Datasheet(HTML) 1 Page - STMicroelectronics

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July 2006
Rev 5
1/11
11
LCP1521S/LCP152DEE
ASD (Application Specific Devices)
Programmable transient voltage suppressor for SLIC protection
Features
Dual programmable transient suppressor
Wide negative firing voltage range:
VMGL = -150 V max.
Low dynamic switching voltages:
VFP and VDGL
Low gate triggering current: IGT = 5 mA max
Peak pulse current: IPP = 30 A (10/1000 µs)
Holding current: IH = 150 mA min
Low space consuming package
Description
These devices have 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 -VBAT
through the gate.
These components present a very low gate
triggering current (IGT) in order to reduce the
current consumption on printed circuit board
during the firing phase.
Benefits
TRISILs™ are not subject to ageing and provide 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,
IEC950 / CSA C22.2, UL1459 and FCC part 68.
Trisils have UL94 V0 approved resin (Trisils are
UL497B approved [file: E136224]).
TM: TRISIL is a trademark of STMicroelectronics
Order codes
Figure 1.
LCP1521S Functional diagram
Figure 2.
LCP152DEE Functional diagram
Part Number
Marking
LCP1521S
CP152S
LCP1521SRL
CP152S
LCP152DEERL
LCP152
SO-8
LCP1521S
QFN 3x3 6 leads
LCP152DEE
TIP
GATE
NC
RING
TIP
GND
RING
GND
1
TIP
TIP
GATE
GND
NC
RING
RING
www.st.com


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