protection products 1 www.semtech.com preliminary protection products - transclamp ? ? ? ? ? TCLAMP1202P low capacitance tclamp ? surge protection for 12v interfaces description features functional circuit diagram package configuration revision 5/27/2015 applications mechanical characteristics ? slp2020p5 package ? pb-free, halogen free, rohs/weee compliant ? lead finish: nipdau ? molding compound flammability rating: ul 94v-0 ? marking : marking code + date code ? packaging : tape and reel ? transient protection for high-speed data lines to iec 61000-4-2 (esd) 20kv (air), 15kv (contact) iec 61000-4-4 (eft) 40a (5/50ns) iec 61000-4-5 (lightning) 100a (8/20 s) ? array of surge rated diodes with internal tvs diode ? protects up to two lines ? low capacitance: (<12pf) ? operating voltage: 12v ? low leakage current ? solid-state silicon-avalanche technology ? rs-485 surge protection ? rs-422 surge protection ? industrial equipment ? remote meter readers ? automatic teller machines ? digital surveillance cameras ? can-bus tclamp ? 1202p provides dedicated surge and esd protection for rs-485 and other 12v lines in industrial applications. it features high surge current capability of 100a (tp=8/20us) and low clamping voltage making them ideal for use in harsh transient environments. this device is designed to replace mulitple discrete components by integrating low capacitance, surge- rated compensation diodes with a high power transient voltage suppressor (tvs). capacitance is limited to 12pf maximum to ensure correct signal transmission on high-speed lines. each TCLAMP1202P may be used to protect up to two lines. a voltage bus operating up to 12v can also be optionally protected. the TCLAMP1202P is in a 5-pin slp2020p5 package, measuring 2.0 x 2.0mm with a nominal height of 0.60mm. the flow- through package design simplifies pcb layout. nominal dimensions in mm (bottom view) 0.60 2.00 2.00 12 pin 2 pin 1 pin 3 pin 4, 5, tab 12v
2 ? 2015 semtech corporation www.semtech.com preliminary protection products TCLAMP1202P absolute maximum rating electrical characteristics (t=25 o c unless otherwise specified) r e t e m a r a pl o b m y ss n o i t i d n o cm u m i n i ml a c i p y tm u m i x a ms t i n u e g a t l o v f f o - d n a t s e s r e v e rv m w r 2 1v e g a t l o v n w o d k a e r b e s r e v e rv r b i t a m 1 = , 4 s n i p o t 3 r o 2 , 1 s n i p b a t d n a , 5 5 3 . 3 15 15 . 8 1v t n e r r u c e g a k a e l e s r e v e ri r v m w r c 5 2 = t , v 2 1 = , 4 s n i p o t 3 r o 2 , 1 s n i p b a t d n a , 5 5 0 0 1 . 0a t n e r r u c e g a k a e l e s r e v e ri r v m w r c 5 2 1 = t , v 2 1 = , 4 s n i p o t 3 r o 2 , 1 s n i p b a t d n a , 5 5 0 0 5 . 0a e c n a t s i s e r c i m a n y d 3 , 2 r n y d s n 0 0 1 / 2 . 0 = p l t 3 d n a 1 n i p 1 1 . 0s m h o e g a t l o v g n i p m a l c 4 v c i p p , a 2 1 = t p s 0 0 0 1 / 0 1 = , 4 s n i p o t 3 r o 2 , 1 s n i p b a t d n a , 5 5 5 2v e g a t l o v g n i p m a l c 4 v c i p p s 0 2 / 8 = p t , a 0 0 1 = , 4 s n i p o t 3 r o 2 , 1 s n i p b a t d n a , 5 5 0 4v e c n a t i c a p a c n o i t c n u j 4 c j , 5 , 4 s n i p o t 3 r o 1 n i p b a t d n a 5 v r z h m 1 = f , v 0 = 2 1f p g n i t a rl o b m y se u l a vs t i n u t ( r e w o p e s l u p k a e p p c 5 2 = t , ) s 0 0 0 1 / 0 1 =p k p 0 0 3s t t a w t ( t n e r r u c e s l u p k a e p p 1 = 0 0 0 1 / 0c 5 2 = t , ) si p p 2 1a t ( t n e r r u c e s l u p k a e p p c 5 2 = t , ) s 0 2 / 8 =i p p 0 0 1a ) r i a ( 2 - 4 - 0 0 0 1 6 c e i r e p d s e 1 ) t c a t n o c ( 2 - 4 - 0 0 0 1 6 c e i r e p d s e 1 v d s e 0 2 - / + 5 1 - / + v k e r u t a r e p m e t g n i t a r e p ot j 5 2 1 + o t 5 5 -c e r u t a r e p m e t e g a r o t st g t s 0 5 1 + o t 5 5 -c notes 1)esd gun return path connected to esd ground reference plane. 2)transmission line pulse test (tlp) settings: t p = 100ns, t r = 0.2ns, i tlp and v tlp averaging window: t 1 = 70ns to t 2 = 90ns. 3) dynamic resistance calculated from i pp = 4a to i pp = 16a 4)guaranteed by design. not production tested. 5)pins 4, 5 and center tab are internally connected
3 ? 2015 semtech corporation www.semtech.com preliminary protection products TCLAMP1202P typical characteristics non-repetitive peak pulse power vs. pulse time (vbus pin 1) clamping voltage vs. peak pulse current (10/1000us pulse waveform) forward voltage vs. peak pulse current (8/20us pulse waveform) capacitance vs. reverse voltage (data line pins 1 and 3) tlp characteristic (data line pins 1 and 3) clamping voltage vs. peak pulse current (8/20us pulse waveform) 0 5 10 15 20 25 02468101214 peak pulse current - i pp (a) clamping voltage - v c (v) w aveform parameters: tr = 10s t d = 1000s tx/rx (pins 1 and 3) vbus (pin 2) 0 5 10 15 20 25 30 35 0 5 10 15 20 25 tlp voltage (v) tlp current (a) transmission line pulse test (tlp) settings: tp = 100ns, tr = 0.2ns, i tlp and v tlp averaging window: t 1 = 70ns to t 2 = 90ns 0.1 1 10 100 0.1 1 10 100 1000 peak pulse power - p pp (kw) pulse duration - tp (s) t a = 25 o c 0 2 4 6 8 10 12 14 02468101214 reverse voltage - v r (v) junction capacitance - c j (pf) f = 1 mhz 0 5 10 15 20 25 30 35 40 0 20406080100120 peak pulse current - i pp (a) clamping voltage - v c (v) w aveform parameters: tr = 8s t d = 20s tx/rx (pins 1 and 3) vbus (pin 2) 0 2 4 6 8 10 12 0 20406080100120 peak pulse current - i pp (a) forward voltage - v f (v) tx/rx (pins 1 and 3)
4 ? 2015 semtech corporation www.semtech.com preliminary protection products TCLAMP1202P typical characteristics esd clamping (+8kv contact per iec 61000-4-2) (data line pins 1 and 3) esd clamping (-8kv contact per iec 61000-4-2) (data line pins 1 and 3) typical insertion loss s21 (data line pins 1 and 3) esd clamping (+8kv contact per iec 61000-4-2) (vbus pin 2) esd clamping (-8kv contact per iec 61000-4-2) (vbus pin 2) -20 0 20 40 60 80 100 120 140 160 -10 0 10 20 30 40 50 60 70 80 time (ns) voltage (v) measured ? with ? 50 ? ohm ? scope ? input ? impedance, ? 2ghz ? bandwidth. ?? corrected ? for ? 50 ? ohm, ? 20db ? attenuator. ? esd ? gun ? return ? path ? connected ? to ? esd ? ground ? plane -150 -130 -110 -90 -70 -50 -30 -10 10 -10 0 10 20 30 40 50 60 70 80 time (ns) voltage (v) measured ? with ? 50 ? ohm ? scope ? input ? impedance, ? 2ghz ? bandwidth. ?? corrected ? for ? 50 ? ohm, ? 20db ? attenuator. ? esd ? gun ? return ? path ? connected ? to ? esd ? ground ? plane -10 0 10 20 30 40 50 60 70 80 90 100 -10 0 10 20 30 40 50 60 70 80 time (ns) voltage (v) measured ? with ? 50 ? ohm ? scope ? input ? impedance, ? 2ghz ? bandwidth. ?? corrected ? for ? 50 ? ohm, ? 20db ? attenuator. ? esd ? gun ? return ? path ? connected ? to ? esd ? ground ? plane analog crosstalk (pin 1 to 3) -100 -80 -60 -40 -20 0 20 -10 0 10 20 30 40 50 60 70 80 time (ns) voltage (v) measured ? with ? 50 ? ohm ? scope ? input ? impedance, ? 2ghz ? bandwidth. ?? corrected ? for ? 50 ? ohm, ? 20db ? attenuator. ? esd ? gun ? return ? path ? connected ? to ? esd ? ground ? plane 1 2 3 4 5 start. 030 mh z 3 stop 000.000000 mhz ch1 s21 log 6 db / ref 0 db 1: - 7.4634 db 800 mhz 2: - 8.8858 db 900 mhz 3: - 6.2824 db 1.8 ghz 4: - 4.1204 db 2.5 ghz 5: - 4.1436 db 2.7 ghz 0 db -6 db -12 db -18 db -24 db -30 db -36 db 1 ghz 100 mhz 3 ghz 10 mhz 1 mhz -42 db -48 db start. 030 mhz 3 stop 000.000000 mhz ch1 s21 log 20db /ref 0 db 0 db -20 d b -40 db -60 db -80 db -100 db -120 db -140 db -160 db
5 ? 2015 semtech corporation www.semtech.com preliminary protection products TCLAMP1202P device connection for protection of rs-485 inter- faces eia rs-485 specifies a 7v ground difference between devices on the bus. this permits the bus voltage to range from +12v (5v + 7v) to -7v (0 - 7v). because of this requirement, each TCLAMP1202P can be configured to protect one line for common mode surges or one line pair for differential surges. the example below illustrates how to connect the TCLAMP1202P for common mode and differential mode protection on an rs-485 interface. for common mode protection, one of the TCLAMP1202P data pins (pin 1 or 3) is connected to the tx/rx line and the other is connected to ground. pins 4 and 5 as well as the center tab are not connected. this effectively makes the device look like a bidirectional 12v tvs to the circuit. for differential mode protection, each of the device data pins (1 and 3) are connected to the transceiver rx/tx pins as shown. again, pins 4, 5 and the center tab are not connected. applications information rs-485 common mode and differential surge protection receiver r driver TCLAMP1202P TCLAMP1202P TCLAMP1202P
6 ? 2015 semtech corporation www.semtech.com preliminary protection products TCLAMP1202P outline drawing - so-8 land pattern - slp2020p5 outline drawing - slp2020p5 b1 bbb aaa n l e dim a1 a2 a 0.35 0.25 0.30 0.35 0.25 0.08 0.08 5 0.30 0.675 bsc millimeters max 0.05 0.65 dimensions min 0.00 nom 0.50 0.03 (0.127) 0.60 controlling dimensions are in millimeters (angles in degrees). coplanarity applies to the exposed pad as well as the terminals. notes: 2. 1. a1 a b seating plane c aaa c bbb c a b 12 n e/2 (laser mark) indicator pin 1 a d1 1.025 0.775 0.925 d 2.00 2.10 1.90 e1 e 2.00 2.10 1.90 1.000 0.750 0.900 d e e1 e r0.20 d1 a2 bx2 b 0.30 0.20 0.25 lxn bbb c a b d/2 b1x3 e/2 e1 e1 0.725 bsc this land pattern is for reference purposes only. consult your manufacturing group to ensure your notes: 2. dim b1 y p1 g millimeters 0.35 0.60 0.725 1.35 dimensions company's manufacturing guidelines are met . 2.55 z c (1.95) h 0.925 k 0.900 controlling dimensions are in millimeters (angles in degrees). 1. b 0.30 p/2 p y g z p 0.675 k (c) p1 h b1 b
7 ? 2015 semtech corporation www.semtech.com preliminary protection products TCLAMP1202P marking codes ordering information transclamp and tclamp are trademarks of semtech corporation. carrier tape specification yw = alphanumeric character date code r e b m u n t r a p r e p y t q l e e r e z i s l e e r t g t . p 2 0 2 1 p m a l c t0 0 0 , 0 1h c n i 3 1 (laser mark) indicator pin 1 12p yw device orientation in tape 12p yw 12p yw TCLAMP1202P \ 6 \ r0 pin1 ? location ? (towards ? sprocket ? holes) contact information semtech corporation protection products division 200 flynn road, camarillo, ca 93012 phone: (805)498-2111 fax (805)498-3804
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