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LCP1511D Datasheet(PDF) 1 Page - STMicroelectronics |
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LCP1511D Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 7 page Application Specific Discretes A.S.D. ™ LCP1511D PROGRAMMABLE TRANSIENT VOLTAGE SUPPRESSOR FOR SLIC PROTECTION ® DUAL PROGRAMMABLE TRANSIENT SUP- PRESSOR. WIDE NEGATIVE FIRING VOLTAGE RANGE : VMGL = -80V max. LOW DYNAMIC SWITCHING VOLTAGES : VFP and VDGL. LOW GATE TRIGGERING CURRENT : IGT = 5mA max. PEAK PULSE CURRENT : IPP = 30A for 10/1000 µs surge. HOLDING CURRENT : IH = 150mA. FEATURES SO8 This device has been especially designed to pro- tect subscriber line card interfaces (SLIC) against transient overvoltages. Positive overloads are clipped with 2 diodes. Negative surges are suppressed by 2 thyristors, 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 ”4-point” configuration ensures reliable protection, eliminating the overvoltage in- troduced by the parasitic inductances of the wiring (Ldi/dt), especially for very fast transients. DESCRIPTION February 1998 Ed: 3 SCHEMATIC DIAGRAM GND GND TIP TIP RING RING 1 2 3 45 6 7 8 GATE NC CCITT K20 : 10/700 µs 1kV 5/310 µs 25A VDE 0433 : 10/700 µs 2kV 5/310 µs 38A (*) VDE 0878 : 1.2/50 µs 1.5kV 1/20 µs 40A I3124 : 0.5/700 µs 1kV 0.2/310 µs 25A FCC part 68 : 2/10 µs 2.5kV 2/10 µs 170A (*) BELLCORE TR-NWT-001089 : 2/10 µs 2.5kV 2/10 µs 170A (*) (*) with series resistors or PTC. COMPLIESWITH THE FOLLOWINGSTANDARDS : TM: ASD is trademarks of SGS-THOMSON Microelectronics. 1/7 |
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