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LB1201AB Datasheet(PDF) 11 Page - Power Innovations Ltd |
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LB1201AB Datasheet(HTML) 11 Page - Power Innovations Ltd |
11 / 14 page 11 SEPTEMBER 1995 - REVISED SEPTEMBER 1997 TISP61060D, TISP61060P DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS PRODUCT INFORMATION TISP61060 a.c. ratings. As covered earlier, the gate decoupling capacitor should be 100 nF and should be mounted as close to the protector as possible. application circuit Figure 8 shows a typical TISP61060 SLIC card protection circuit. The incoming line wires, R and T, connect to the relay matrix via the series over-current protection. Fusible resistors, fuses and positive temperature coefficient (PTC) resistors can be used for over-current protection. Resistors will reduce the prospective current from the surge generator for both the TISP61060 and the ring/test protector. The TISP7xxxF3 protector has the same protection voltage for any terminal pair. This protector is used when the ring generator configuration maybe ground or battery-backed. For dedicated ground-backed ringing generators, the TISP3xxxF3 gives better protection as its inter-wire protection voltage is twice the wire to ground value. Relay contacts 3a and 3b connect the line wires to the SLIC via the TISP61060 protector. The protector gate reference voltage comes from the SLIC negative supply (VBAT). A 100 nF gate capacitor sources the high gate current pulses caused by fast rising impulses. Figure 8. TYPICAL APPLICATION CIRCUIT TEST RELAY RING RELAY SLIC RELAY TEST EQUIP- MENT RING GENERATOR S1a S1b R1 R2 RING WIRE TIP WIRE Th1 Th2 Th3 Th4 Th5 SLIC SLIC PROTECTOR RING/TEST PROTECTION OVER- CURRENT PROTECTION S2a S2b TISP 61060 TISP 3xxxF3 OR 7xxxF3 S3a S3b V BAT 100 nF AI6XAF |
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