protection products 1 www.semtech.com protection products sl05 through sl24 low capacitance tvs diode for high speed data interfaces features circuit diagram schematic & pin configuration revision 09/23/04 the sl series of tvs arrays are designed to protect sensitive electronics from damage or latch-up due to esd, lightning, and other voltage-induced transient events. they are available with operating voltages of 5v, 12v, 15v and 24v. tvs diodes are solid-state devices designed specifically for transient suppression. they offer desirable charac- teristics for board level protection including fast re- sponse time, low operating and clamping voltage, and no device degradation. the sl series devices feature a low capacitance, fast switching compensation diode in series with a standard tvs diode. this effectively reduces the overall capacitance of the device to less than 5pf making it an integrated, low capacitance solution for use on high-speed interfaces. the sl series devices may be used to meet the immu- nity requirements of iec 61000-4-2, level 4. applications mechanical characteristics ? high-speed data lines ? cellular handsets and accessories ? universal serial bus (usb) port protection ? portable instrumentation ? lan/wan equipment ? peripherals ? transient protection for high-speed data lines to iec 61000-4-2 (esd) 15kv (air), 8kv (contact) iec 61000-4-4 (eft) 40a (5/50ns) iec 61000-4-5 (lightning) 12a (8/20s) ? small package for use in portable electronics ? two devices will protect one line ? low capacitance for high-speed data lines ? working voltages: 5v, 12v, 15v and 24v ? solid-state silicon avalanche technology ? jedec sot23 package ? molding compound flammability rating: ul 94v-0 ? marking : marking code ? packaging : tape and reel per eia 481 sot23 top view 1 2 3 (n.c.) description
2 ? 2004 semtech corp. www.semtech.com protection products protection products sl05 through sl24 absolute maximum rating electrical characteristics 5 0 l s 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 5v 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 =6 v 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 5 =0 2a e g a t l o v g n i p m a l cv c i p p , a 1 = t p s 0 2 / 8 = 8 . 9v e g a t l o v g n i p m a l cv c i p p , a 5 = t p s 0 2 / 8 = 1 1v t n e r r u c e s l u p k a e pi p p t p s 0 2 / 8 =7 1a e c n a t i c a p a c n o i t c n u jc j 2 o t 1 n i p v r z h m 1 = f , v 0 = 5f 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 ) s 0 2 / 8 =p k p 0 0 3s t t a w ) 2 - 4 - 0 0 0 1 6 c e i r e p m b h ( e g a t l o v d s ev d s e 5 2 >v k e r u t a r e p m e t g n i r e d l o s d a e lt l ) . c e s 0 1 ( 0 6 2c 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 2 1 l s 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 =3 . 3 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 =1a e g a t l o v g n i p m a l cv c i p p , a 1 = t p s 0 2 / 8 = 9 1v e g a t l o v g n i p m a l cv c i p p , a 5 = t p s 0 2 / 8 = 4 2v t n e r r u c e s l u p k a e pi p p t p s 0 2 / 8 =2 1a e c n a t i c a p a c n o i t c n u jc j 2 o t 1 n i p v r z h m 1 = f , v 0 = 5f p
3 ? 2004 semtech corp. www.semtech.com protection products protection products sl05 through sl24 electrical characteristics (continued) 5 1 l s 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 5 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 =7 . 6 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 5 1 =1a e g a t l o v g n i p m a l cv c i p p , a 1 = t p s 0 2 / 8 = 4 2v e g a t l o v g n i p m a l cv c i p p , a 5 = t p s 0 2 / 8 = 0 3v t n e r r u c e s l u p k a e pi p p t p s 0 2 / 8 =0 1a e c n a t i c a p a c n o i t c n u jc j 2 o t 1 n i p v r z h m 1 = f , v 0 = 5f p 4 2 l s 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 4 2v 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 =7 . 6 2v 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 4 2 =1a e g a t l o v g n i p m a l cv c i p p , a 1 = t p s 0 2 / 8 = 3 4v e g a t l o v g n i p m a l cv c i p p , a 5 = t p s 0 2 / 8 = 5 5v t n e r r u c e s l u p k a e pi p p t p s 0 2 / 8 =5a e c n a t i c a p a c n o i t c n u jc j 2 o t 1 n i p v r z h m 1 = f , v 0 = 5f p
4 ? 2004 semtech corp. www.semtech.com protection products protection products sl05 through sl24 typical characteristics non-repetitive peak pulse power vs. pulse time 0 10 20 30 40 50 60 70 80 90 100 110 0 25 50 75 100 125 150 ambient temperature - t a ( o c) % of rated power or i pp power derating curve pulse waveform 0 10 20 30 40 50 60 70 80 90 100 110 0 5 10 15 20 25 30 time (s) percent of i pp e -t td = i pp /2 waveform parameters: tr = 8s td = 20s l e v e lt s r i f k a e p t n e r r u c ) a ( k a e p t n e r r u c s n 0 3 t a ) a ( k a e p t n e r r u c s n 0 6 t a ) a ( t s e t e g a t l o v t c a t n o c ( ) e g r a h c s i d ) v k ( t s e t e g a t l o v r i a ( ) e g r a h c s i d ) v k ( 15 . 748 2 2 25 184 4 4 35 . 2 22 166 8 40 36 18 8 5 1 0.01 0.1 1 10 0.1 1 10 100 1000 pulse duration - t p (s) peak pulse power - p pk (kw) iec 61000-4-2 discharge parameters esd pulse waveform (per iec 61000-4-2)
5 ? 2004 semtech corp. www.semtech.com protection products protection products sl05 through sl24 sl connection options device connection for protection of one high-speed data line the sl series devices are designed to protect high- speed data lines. the slxx utilizes a low capacitance compensation diode in series with, but in opposite polarity to a tvs diode in each line to achieve an effective capacitance of less than 5pf per device. during a transient event, the internal rectifier must be forward biased (tvs is reversed biased). therefore, each device will only suppress transient events in one polarity. to achieve protection in both positive and negative polarity, a second device is connected in anti- parallel to the first. on unidirectional lines, a fast switching steering diode may be used as an alternative to using two sl devices. the options for connecting the devices are as follows: z z z z z low capacitance protection of one high-speed line: protection of one unidirectional or bidirec- tional high-speed line is achieved by connecting two devices in anti-parallel. pin 1 of the first device is connected to the line and pin 2 is connected to ground (or to a second line for differential protec- tion). pin 2 of the second device is connected to line 1 and pin 1 is connected to ground (or line 2) as shown. pin 3 is not connected. during positive duration transients, the first device will conduct from pin 1 to 2. the steering diode conducts in the forward direction while the tvs will avalanche and conduct in the reverse direction. during negative transients, the second device will conduct in the same manner. for optimum protection, the ground connections should be made directly to the ground plane for best results. the path length is kept as short as possible to reduce the effects of parasitic inductance in the board traces. the path length between the tvs and the protected line should also be minimized. z z z z z connection option for unidirectional lines only: an optional method for protecting unidirectional (normal signal polarities above ground) lines is to add a fast switching steering diode in parallel to the sl tvs. input/outputs are connected to pin 1 of the sl device and the cathode of the rectifier. the anode of the diode and pin 2 of the sl tvs are connected to ground. two devices : bidirectional or unidirectional line one devices with steering diode : unidirectional line i/o line protection applications information matte tin lead finish matte tin has become the industry standard lead-free replacement for snpb lead finishes. a matte tin finish is composed of 100% tin solder with large grains. since the solder volume on the leads is small com- pared to the solder paste volume that is placed on the land pattern of the pcb, the reflow profile will be determined by the requirements of the solder paste. therefore, these devices are compatible with both lead-free and snpb assembly techniques. in addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint.
6 ? 2004 semtech corp. www.semtech.com protection products protection products sl05 through sl24 outline drawing - sot23 3l land pattern - sot23 3l e e1 d e1 e bxn 12 3 a1 a2 a 3x a bbb c a b b c seating plane aaa c 1.40 1.20 n3 3 0 - 8 0 8 0 - .055 .047 bbb .008 0.20 aaa .004 0.10 inches .114 l1 e d b e c .012 .003 .082 a1 dim a min .000 .035 0.51 0.18 2.64 0.30 0.08 2.10 .022 - .075 - .093 .020 .007 .104 (0.55) 1.90 bsc - - 2.37 2.90 millimeters max 0.10 1.12 min dimensions 0.01 max nom - - .004 .044 nom 0.89 - - 3.04 2.80 .110 .120 e1 .037 0.95 bsc l .015 .020 0.50 0.40 .024 0.60 a2 .035 .037 0.95 0.88 .040 1.02 e1 .051 1.30 see detail a side view datums and to be determined at datum plane -a- -b- 2. controlling dimensions are in millimeters (angles in degrees). notes: or gate burrs. dimensions "e1" and "d" do not include mold flash, protrusions 3. 1. -h- h detail a 0.25 c seating plane gauge plane 0 c l l1 reference ipc-sm-782a. 2. e .037 0.95 y y g z c e x e1 e1 .075 1.90 notes: 1. this land pattern is for reference purposes only consult your manufacturing group to ensure your company's manufacturing guidelines are met. dim y z g x c millimeters inches (2.20) .055 .141 .039 .031 (.087) 1.40 3.60 1.00 0.80 dimensions
7 ? 2004 semtech corp. www.semtech.com protection products protection products sl05 through sl24 ordering information r e b m u n t r a p d a e l h s i n i f l e e r r e p y t qe z i s l e e r c t . 5 0 l sb p n s0 0 0 , 3h c n i 7 c t . 2 1 l sb p n s0 0 0 , 3h c n i 7 c t . 5 1 l sb p n s0 0 0 , 3h c n i 7 c t . 4 2 l sb p n s0 0 0 , 3h c n i 7 t c t . 5 0 l se e r f b p0 0 0 , 3h c n i 7 t c t . 2 1 l se e r f b p0 0 0 , 3h c n i 7 t c t . 5 1 l se e r f b p0 0 0 , 3h c n i 7 t c t . 4 2 l se e r f b p0 0 0 , 3h c n i 7 marking codes r e b m u n t r a p g n i k r a m e d o c 5 0 l s5 0 l 2 1 l s2 1 l 5 1 l s5 1 l 4 2 l s4 2 l h c n a r b n a w i a t 0 8 3 3 - 8 4 7 2 - 2 - 6 8 8 : l e t fx a0 9 3 3 - 8 4 7 2 - 2 - 6 8 8 : h b m g d n a l r e z t i w s h c e t m e s h c n a r b n a p a j 0 5 9 0 - 8 0 4 6 - 3 - 1 8 : l e t 1 5 9 0 - 8 0 4 6 - 3 - 1 8 : x a f h c n a r b a e r o k tl e7 7 3 4 - 7 2 5 - 2 - 2 8 : f6 7 3 4 - 7 2 5 - 2 - 2 8 : x a ) . k . u ( d e t i m i l h c e t m e s 0 0 6 - 7 2 5 - 4 9 7 1 - 4 4 : l e t 1 0 6 - 7 2 5 - 4 9 7 1 - 4 4 : x a f e c i f f o i a h g n a h s t0 3 8 0 - 1 9 3 6 - 1 2 - 6 8 : l e 1 3 8 0 - 1 9 3 6 - 1 2 - 6 8 : x a f l r a s e c n a r f h c e t m e s 0 0 - 2 2 - 8 2 - 9 6 1 ) 0 ( - 3 3 : l e t 8 9 - 2 1 - 8 2 - 9 6 1 ) 0 ( - 3 3 : x a f f o y r a i d i s b u s d e n w o - y l l o h w a s i g a l a n o i t a n r e t n i h c e t m e s . a . s . u e h t n i s r e t r a u q d a e h s t i s a h h c i h w , n o i t a r o p r o c h c e t m e s h b m g y n a m r e g h c e t m e s 3 2 1 - 0 4 1 - 1 6 1 8 ) 0 ( - 9 4 : l e t 4 2 1 - 0 4 1 - 1 6 1 8 ) 0 ( - 9 4 : x a f contact information for semtech international ag
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