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LCP1521 Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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LCP1521 Scheda tecnica(HTML) 1 Page - STMicroelectronics |
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1 / 9 page ![]() LCP1521 ® September 1999 - Ed: 2A PROGRAMMABLE TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION SO-8 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 = 2 mA max Peak pulse current: IPP = 30 A (10/1000 µs) Holding current: IH = 150 mA FEATURES This device has been especially designed to pro- tect new high voltage, as well as classical SLICs, against transient overvoltages. Positive overvoltages are clipped with 2 diodes. Negative surges are suppressed by 2 thyris- tors, their breakdown voltage being referenced to -VBAT through the gate. This component presents a very low gate trigge- ring current (IGT) in order to reduce the current con- sumption on printed circuit board during the firing phase. A particular attention has been given to the internal wire bonding. The Kelvin method configuration en- sures reliable protection, reducing the overvoltage introduced by the parasitic inductances of the wir- ing L x(dI/dt), especially for very fast transients. DESCRIPTION Application Specific Discretes A.S.D. TM FUNCTIONAL DIAGRAM TIP GATE NC RING TIP GND RING GND 1/9 |
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