july 2010 - revised may 2012 speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. mdrxan 1 2 3 45 6 7 8 k2 a a k4 g1,g2 k1 k3 g3,g4 sdrxaia k1 k3 k4 k2 g3,g4 a a g1,g2 TISP61089QB slic overvoltage protector TISP61089QB programmable overvoltage protector quad forward-conducting p-gate thyristor quad voltage-programmable protector - wide -20 v to -155 v programming range - low 5 ma max. gate triggering current - high 150 ma min. holding current - rated for itu-t and yd/t-950 10/700 impulses - rated for telcordia intra-building impulses 10/700 protection voltage speci ed bourns TISP61089QB is a quad forward-conducting buffered p-gate overvoltage protector. it is designed to protect monolithic slics (subscriber line interface circuits) against overvoltages on the tele- phone line caused by lightning, a.c. power contact and induction. the TISP61089QB limits voltages that exceed the slic supply rail voltage. the TISP61089QB parameters are speci ed to allow equipment compli- ance with telcordia gr-1089-core intra-building, itu-t k.20, k.21 and k.45 and yd/t-950. the slic line driver section is typically powered from 0 v (ground) and a negative voltage in the region of -20 v to -155 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 then track the negative supply voltage the overvoltage stress *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. *rohs compliant d package (top view) device symbol description on the slic is minimized. positive overvoltages are clipped to ground by diode forward conduction. negative overvoltages are initially clipped close to the slic negative supply rail value. if suf cient current is available from the overvoltage, then the protector will crowbar into a low voltage on-state condition. as the overvoltage subsides, the high holding current of the crowbar helps prevent d.c. latchup. these monolithic protection devices are fabricated in ion-implanted planar vertical power structures for high reliability and a re virtually transparent in normal operation. the TISP61089QB buffered gate design reduces the loading on the slic supply during overvoltage s caused by power cross and induction. the TISP61089QB is available in an 8-pin plastic small-outline surface mount package. how to order element 40 a, 5/310 protection level diode +12 crowbar v gg = -48 v -64 device package carrier ti 8 pin small outline (d008) sp61089qb embossed tape reeled TISP61089QBdr-s order as 1089qb marking code 2500 standard quantity
july 2010 - revised may 2012 speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. t i n u e u l a v l o b m y s g n i t a r repetitive peak off- state voltage, i g c 0 4 - 0 = t j 85 c v drm -170 v v repetitive peak gate-cathode voltage, v ka c 0 4 - 0 = t j 85 c v gkrm -167 non-repetitive peak on-state pulse current (see notes 1 and 2) i tsp 30 40 120 a 85 non-repetitive peak on-state current, 60 hz (see notes 1, 2 and 3) i tsm 0.5 a 900 s non-repetitive peak ga i ) 2 d n a 1 s e t o n e e s ( d e n o m m o c s e d o h t a c , e s l u p s 0 1 / 2 , t n e r r u c e t gsm 40 a junction temperature t j -40 to +150 ? storage temperature range t stg -40 to +150 ? notes: 1. initially the protector must be in thermal equilibrium with t j = 25 ?. the surge may be repeated after the device returns to its initial conditions. 2. these non-repetitive rated currents are peak values for either polarity. the rated current values may be applied to any catho de- anode terminal pair. additionally, all cathode-anode terminal pairs may have their rated current values applied simultaneously (in this case the anode terminal current will be four times the rated current value of an individual terminal pair). 3. eia/jesd51-2 environment and eia/jesd51-7 high effective thermal conductivity test board (multi-layer) connected with 0.6 mm printed wiring track widths. min typ max unit c g gate decoupling capacitor 100 nf t i d n o c t s e t r e t e m a r a p t i n u x a m p y t n i m s n o i i d off-state current v d = v drm , v gk = 0 -5 ? v (bo) breakover voltage 10/700 ?, i t = -40 a, r s = 55 ?, v gg = -48 v, c g v 4 6 - f n 0 0 1 = v f forward voltage i f = 5 a, t w = 200 ? 3v v frm peak forward recovery voltage 10/700 ?, i f = 40 a, r s = 55 ? , v gg = -48 v, c g v 2 1 f n 0 0 1 = i h holding current i t =-1a, di/dt=1a/ms, v gg a m 0 5 1 - 100 v - = i gas gate reverse current v gg =v gk = v gkrm , v ka a 5 - 0 = i gt gate trigger current i t = 3 a, t p(g) 20 ?, v gg a m 5 100 v - = v gt gate trigger voltage i t = 3 a, t p(g) 20 ?, v gg v 5 . 2 100 v - = c ak anode-cathode off-state capacitance f = 1 mhz, v d = 1 v i g = 0, (see note 5) v d = -3 v 100 pf v d = -48 v 50 note: 5. these capacitance measurements employ a three terminal capacitance bridge incorporating a guard circuit. the unmeasured device terminals are a.c. connected to the guard terminal of the bridge. 10/1000 ? (bellcore gr-1089-core, issue 1, november 1994, section 4) 5/310 ? (itu-t k.20/21/45, yd/t-950, open circuit voltage waveshape 10/700) 2/10 ? (bellcore gr-1089-core, issue 1, november 1994, section 4) 2/40 ? (iec61000-4-5, 1.2/50 ? open circuit voltage, 2 ohm + 10 ohm, see note 4) 4. combination wave generator as specified in itu-t k.20, k.21, k.44. TISP61089QB slic overvoltage protector absolute maximum ratings, t j = 25 ? (unless otherwise noted) recommended operating conditions electrical characteristics, t j = 25 ? (unless otherwise noted)
july 2010 - revised may 2012 speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. TISP61089QB slic overvoltage protector thermal characteristics parameter test conditions min typ max unit r ja junction to free air thermal resistance p tot = 0.8 w, t a = 25 c 5 cm 2 , fr4 pcb 160 c/w parameter measurement information figure 1. voltage-current characteristic -v i s v s v gg v d i h i t v t i tsm i tsp v (bo) i (bo) i d quadrant i forward conduction characteristic +v +i i f v f i fsm (= ) | tsm i fsp (= ) | tsp -i quadrant iii switching characteristic pm6xaaa v gk(bo)
july 2010 - revised may 2012 speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications. TISP61089QB slic overvoltage protector applications information typical applications circuit figure 2 shows a typical TISP61089QB slic card protection circuit. the incoming line conductors, ring1/ring2 and tip1/tip2, con nect to the relay matrix via the series overcurrent protection. positive temperature coef cient (ptc) thermistors can be used for overcurrent protection. the resistance of the ptc thermistor will reduce the prospective current from the surge generator for the TISP61089QB. -v bat2 100nf slic #1 slic #2 TISP61089QB mf-sd013/250 gnd mf-sd013/250 -v bat1 100nf tip1 tip2 ring1 ring2
?isp?is a registered trademark of bourns ltd., a bourns company, in the united states and other countries, except that ?isp is a registered trademark of bourns, inc. in china. ?ourns?is a registered trademark of bourns, inc. in the u.s. and other countries. bourns sales of ces region phone fax the americas: +1-951-781-5500 +1-951-781-5700 europe: +41(0)41-7685555 +41(0)41-7685510 asia-paci c: +886-2-25624117 +886-2-25624116 technical assistance region phone fax the americas: +1-951-781-5500 +1-951-781-5700 europe: +41(0)41-7685555 +41(0)41-7685510 asia-paci c: +886-2-25624117 +886-2-25624116 www.bourns.com bourns products are available through an extensive network of manufacturer s representatives, agents and distributors. to obtain technical applications assistance, a quotation, or to place an order, contact a bourns representative in your area.
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