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TISP61511D Datasheet(PDF) 1 Page - Bourns Electronic Solutions |
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TISP61511D Datasheet(HTML) 1 Page - Bourns Electronic Solutions |
1 / 9 page JULY 1995 — REVISED MARCH 2006 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. TISP61511D Gated Protectors TISP61511D DUAL FORWARD-CONDUCTING P-GATE THYRISTORS PROGRAMMABLE OVERVOLTAGE PROTECTORS Device Symbol Dual Voltage-Programmable Protectors. – Wide 0 to -80 V Programming Range – Low 5 mA max. Triggering Current – High 150 mA min. Holding Current Rated for International Surge Wave Shapes D Package (Top View) Description The TISP61511D is a dual forward-conducting buffered p-gate over- voltage protector. It is designed to protect monolithic Subscriber Line Interface Circuits, SLICs, against overvoltages on the telephone line caused by lightning, ac power contact and induction. The TISP61511D limits voltages that exceed the SLIC supply rail voltage. The SLIC line driver section is typically powered from 0 V (ground) and a negative voltage in the region of -10 V to -70 V. The protector gate is connected to this negative supply. This references the protection (clipping) voltage to the negative supply voltage. As the protection voltage will track the negative supply voltage the overvoltage stress on the SLIC is minimized. Voltage Wave Shape Standard ITSP A 2/10 µs TR-NWT-001089 170 1.2/50 µs ETS 300 047-1 90 0.5/700 µs RLM88/I3124 40 10/700 µs K17, K20, K21 40 10/1000 µs TR-NWT-001089 30 Functional Replacements for .............................................. UL Recognized Component MD6XANB NC - No internal connection Terminal typical application names shown in parenthesis 1 2 3 4 5 6 7 8 K1 A A K2 G K1 K2 NC (Tip) (Ground) (Ground) (Ring) (Gate) (Tip) (Ring) Terminals K1, K2 and A correspond to the alternative line designators of T, R and G or A, B and C. The negative protection voltage is controlled by the voltage, V GG, applied to the G terminal. SD6XAE A K1 G K2 Positive overvoltages are clipped to ground by diode forward conduction. Negative overvoltages are initially clipped close to the SLIC negative supply rail value. If sufficient current is available from the overvoltage, then the protector will crowbar into a low voltage on-state condition. As the current subsides the high holding current of the crowbar prevents d.c. latchup. These monolithic protection devices are fabricated in ion-implanted planar vertical power structures for high reliability and in normal system operation they are virtually transparent. The buffered gate design reduces the loading on the SLIC supply during overvoltages caused by power cross and induction. *RoHS Directive 2002/95/EC Jan 27 2003 including Annex Device Type Package Type LCP1511, LCP1511D, ATTL7591AS, MGSS150-1 8-pin Small- Outline TISP61511D or TISP61511DR for Taped and Reeled TISP61511D-S or TISP61511DR-S for Taped and Reeled Functional Replacement With Standard Termination Finish Order As Functional Replacement With Lead Free Termination Finish Order As |
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