herunterladen
This is information on a product in full production.
July 2015 DocID16268 Rev 5 1/11
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:
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
= 40 A (5/310 µs)
• Holding current: I
H
= 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
-V
BAT
through the gate. Separated gates allow the
SLICs to be supplied by two different voltages.
Figure 1. Functional diagram
TM: Trisil is a trademark of STMicroelectronics
62
*Q
*Q
*1'
*1'
/LQH
7,3RU5,1*
/LQH
7,3RU5,1*
/LQH
5,1*RU7,3
/LQH
5,1*RU7,3
www.st.com
Verzeichnis
