LCP1521

Channels :
Breakdown Voltage :
Capacitance :
Termination Style :
Power Dissipation Pd :
Operating Temperature Range :
Package / Case : SO-8


Features:

` Dual programmable transient suppressor
` Wide negative firing voltage range:
   V_MGL = -150 V max.
` Low dynamic switching voltages: V<sub>FP</sub> and V<sub>DGL</sub>
` Low gate triggering current: I_GT = 5 mA max
` Peak pulse current: I<sub>PP</sub> = 30 A (10/1000 s)
` Holding current: I_H = 150 mA min


Specifications

Symbol	Parameter		Value	Unit
IPP	Peak pulse current (see note1)	10/1000ms 8/20µs 10/560µs 5/310ms 10/160µs 1/20µs 2/10ms	30 100 35 40 50 100 170	A
ITSM	Non repetitive surge peak on-state current (50Hz sinusoidal)	t = 10ms t = 1s	20 5	A
IGSM	Maximum gate current (50Hz sinusoidal)	t = 10ms	2	A
VMLG VMGL	Maximum voltage LINE/GND Maximum voltage GATE/LINE	-40°C < Tamb < +85°C -40°C < Tamb < +85°C	-150 -150	V
Tstg Tj	Storage temperature range Maximum junction temperature		- 55 to + 150 150	°C
TL	Maximum lead temperature for soldering during 10s		260	°C

Description

The LCP1521 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.

The LCP1521 presents a very low gate triggering current (I_GT) in order to reduce the current consumption on printed circuit board during the firing phase.

A particular attention has been given to the internal wire bonding. The Kelvin method configuration ensures reliable protection, reducing the overvoltage introduced by the parasitic inductances of the wiring, especially for very fast transients.