protection products 1 www.semtech.com preliminary protection products - emiclamp tm ECLAMP2522P usb upstream port filter and tvs for emi filtering and esd protection description features pin configuration the eclamp tm 2522p is an easily implemented solution for protection and termination of low speed or full speed universal serial bus (usb) ports. each device will provide termination, filtering, and esd protection for one upstream usb port on cellular phones and other portable electronics. this state-of-the-art device utilizes solid-state silicon-avalanche technology for superior clamping performance and electrical characteristics. line termination is achieved with 22 ohm series resistors on both the d+ and d- usb lines. tvs diodes are also included on each data line for esd protection in excess of 15kv (air discharge) and 8kv (contact discharge) per iec 61000-4-2, level 4. an additional tvs diode connection is included for protection of the voltage (vbus) bus. the 1.5k ohm pull-up resistor is included on one of the usb data lines to identify the equipment as either a full-speed (connected to d+ line) or low-speed (connected to d- line) device. the ECLAMP2522P is in a 6-pin, rohs compliant, slp1616p6 package. it measures 1.6 x 1.6 x 0.60mm. the leads are spaced at a pitch of 0.5mm and are finished with lead-free nipdau. the small package makes it ideal for use in portable electronics such as cell phones and digital still cameras. mechanical characteristics circuit diagram applications ? bidirectional emi/rfi filter with integrated tvs for esd protection ? esd protection to iec 61000-4-2 (esd) level 4, 15kv (air), 8kv (contact) ? tvs working voltage: 5.25v ? termination resistor: 22 ohms ? capacitance: 45pf (max at vr = 0v) ? protection and filtering for one usb port ? solid-state technology revision 07/29/2007 ? slp1616p6 6l package ? rohs/weee compliant ? nominal dimensions: 1.6 x 1.6 x 0.60 mm ? lead finish: nipdau ? molding compound flammability rating: ul 94v-0 ? marking : marking code + date code ? packaging : tape and reel per eia 481 ? usb ports ? cellular handsets ? pdas ? pc peripherals ? mp3 players 1 gnd 2 3 6 5 4 dm in dp in dp out vbus dm out vterm r slp1616p6 (top view) 20pf 20pf 22 gnd 1 2 3 4 5 6 22 20pf 20pf 1.5k
2 ? 2007 semtech corp. www.semtech.com preliminary protection products ECLAMP2522P maximum ratings electrical characteristics (t=25 o c) g n i t a rl o b m y se u l a vs t i n u ) r i a ( 2 - 4 - 0 0 0 1 6 c e i r e p d s e ) t c a t n o c ( 2 - 4 - 0 0 0 1 6 c e i r e p d s e v d s e 7 1 - / + 2 1 - / + v k e r u t a r e p m e t n o i t c n u jt j 5 2 1 o c e r u t a r e p m e t g n i t a r e p ot p o 5 8 + o t 0 4 - o 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 - o c 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 r s v tv m w r d n g o t 1 n i p5 . 5v e g a t l o v n w o d k a e r b e s r e v e r s v t v r b d n g o t 1 n i p i t a m 1 = 65 . 79 v t n e r r u c e g a k a e l e s r e v e r s v ti r v m w r v 5 . 5 = a t a d n e e w t e b d n u o r g d n a n i p ) - d , + d ( 1a t n e r r u c e g a k a e l e s r e v e r s v ti r e n i l h c a e1a e c n a t s i s e r s e i r e sr s e n i l h c a e0 22 24 2s m h o e c n a t s i s e r p u l l u pr u p 5 3 . 15 . 15 6 . 1s m h o k e c n a t i c a p a c l a t o tc t o t d n g o t 3 r o 2 , 1 n i p v r z h m 1 = f , v 0 = 0 30 45 4f p
3 ? 2007 semtech corp. www.semtech.com preliminary protection products ECLAMP2522P typical characteristics typical insertion loss s21 esd clamping (+8kv contact) esd clamping (-8kv contact) note: data is taken with a 10x attenuator note: data is taken with a 10x attenuator normalized capacitance vs. reverse voltage start . 030 mhz 3 stop 000 . 000 000 mhz ch1 s21 log 6 db / ref 0 db 1: -4.7448 db 163.291 mhz 2: -19.581 db 800.00 mhz 3: -21.137 db 900.00 mhz 4: -17.702 db 1.800 ghz 5: -15.929 db 2.500 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 1 2 3 4 5 -42 db -48 db analog crosstalk (each line) start . 030 mhz 3 stop 000 . 000 000 mhz ch1 s21 log 20 db / ref 0 db 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 012345 reverse voltage - v r (v) c j (v r ) / c j (v r =0) f = 1 mhz
4 ? 2007 semtech corp. www.semtech.com preliminary protection products ECLAMP2522P figure 1 - pin identification and configuration (top side view) n i pl o b m y sn o i t a c i f i t n e d i 1s u b vn o i t c e t o r p d s e s u b v v 5 2 . 5 2n i m d n o i t a n i m r e t h t i w t u p n i a t a d b s u r o t s i s e r 3n i p d n o i t a n i m r e t h t i w t u p n i a t a d b s u r o t s i s e r 4t u o p d h t i w t u p t u o a t a d b s u r o t s i s e r n o i t a n i m r e t 5t u o m d h t i w t u p t u o a t a d b s u r o t s i s e r n o i t a n i m r e t 6v m r e t r o t s i s e r p u - l l u p m h o k 5 . 1 r e t n e c b a t d n gn o i t c e n n o c d n u o r g 1 gnd 2 3 6 5 4 device connection the ECLAMP2522P is designed to provide termination, emi filtering and esd protection for one usb port. the device is connected as follows: 1. 1. 1. 1. 1. full-speed devices: for full-speed devices the pull-up resistor is connected to the d+ line. route the d+ line from the connector to pin 2. pin 5 is connected to the d+ line of the ic. route the d- line from the connector to pin 3. pin 4 is con- nected to the d- line of the ic. pin 1 is connected to the voltage supply line (v bus ). pin 6 is connected to the 3.3 volt supply. the ground connection is made to the center tab. for best results, use multiple vias to the ground plane to reduce para- sitic inductance. 2. 2. 2. 2. 2. low-speed devices : : : : : for low speed devices the pull-up resistor is connected to the d- line. route the d- line from the connector to pin 2. pin 5 is connected to the d- line of the ic. route the d+ line from the connector to pin 3. pin 4 is con- nected to the d+ line of the ic. pin 1 is connected to the voltage supply line (v bus ). pin 6 is connected to the 3.3 volt supply. the ground connection is made to the center tab. for best results, use multiple vias to the ground plane to reduce para- sitic inductance. usb port design considerations the universal serial bus (usb) specification requires termination and filtering components for proper opera- tion. in addition, an open usb socket is vulnerable to hazardous esd discharges in excess of 15kv. these discharges can occur on the data lines or the voltage bus. the ECLAMP2522P is an easily implemented solution that is designed to meet the termination and emi filter requirements of the usb specification for low speed and full speed devices. it also provides esd protection to iec 61000-4-2, level 4. usb line termination is achieved with series resistors on both the d+ and d- lines. these resistors preserve signal integrity by matching the cable impedance to that of the differential driver. a 1.5k ? pull-up resistor is used to identify an upstream port on either the d+ (full speed devices) or the d- (low speed devices) data line. tvs diodes provide esd protection of both (d+ and d-) data lines and the voltage bus (v bus ). this integrated solution simplifies design and requires minimal board space.
5 ? 2007 semtech corp. www.semtech.com preliminary protection products ECLAMP2522P applications information - spice model ECLAMP2522P spice model line in line out 22 ? d2 vcc s r e t e m a r a p e c i p s p 2 2 5 2 p m a l c e r e t e m a r a pt i n u1 d2 d s ip m a5 1 - e 4 . 35 1 - e 4 . 3 v bt l o v6 4 5 . 74 9 5 . 7 j vt l o v3 5 7 . 03 5 7 . 0 s rm h o9 4 6 . 01 4 4 . 0 v b ip m a3 - e 13 - e 1 o j cd a r a f2 1 - e 7 12 1 - e 1 3 t tc e s9 - e 1 4 5 . 29 - e 1 4 5 . 2 m- -4 2 . 06 2 . 0 n- -1 . 11 . 1 g ev e1 1 . 11 1 . 1
6 ? 2007 semtech corp. www.semtech.com preliminary protection products ECLAMP2522P land pattern - slp1616p6 outline drawing - slp1616p6 .016 .022 .026 0.40 0.55 0.65 1.60 .063 e a b a1 seating plane c aaa c 12 n e pin 1 indicator (laser mark) bbb c a b d/2 bxn e/2 lxn e1 d1 a2 a e d 1.70 1.50 .067 .059 1.50 1.70 .067 .059 inches .020 bsc b .007 bbb aaa n d1 l e d .013 .041 dim a1 a2 a min 0.00 .020 0.30 0.20 .012 0.25 .010 0.40 1.30 0.25 1.05 .004 .004 6 .013 .063 .047 .016 .051 0.09 0.09 6 0.33 1.60 1.20 0.50 bsc millimeters max 0.05 0.65 dimensions min 0.00 nom (.006) .023 .001 max .002 .026 nom 0.50 0.03 (0.15) 0.58 controlling dimensions are in millimeters (angles in degrees). coplanarity applies to the exposed pad as well as the terminals. notes: 2. 1. e1 this land pattern is for reference purposes only. consult your manufacturing group to ensure your notes: 1. dim x y p g c millimeters inches 1.52 .012 .025 .035 .020 .060 0.30 0.63 0.50 0.89 dimensions company's manufacturing guidelines are met. 2.15 .085 z b .051 1.30 .018 f 0.45 x z p y g (c) b f
7 ? 2007 semtech corp. www.semtech.com preliminary protection products ECLAMP2522P contact information semtech corporation protection products division 200 flynn rd., camarillo, ca 93012 phone: (805)498-2111 fax (805)498-3804 marking ordering information tape and reel specification 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 c t . p 2 2 5 2 p m a l c e0 0 0 3h c n i 7 this is a lead-free rohs/weee compliant device emiclamp and eclamp are marks of semtech corporation 0 a0 b0 k m m 5 0 . 0 - / + 8 7 . 1m m 5 0 . 0 - / + 8 7 . 1m m 5 0 . 0 - / + 9 6 . 0 e p a t h t d i w ) x a m ( , bd1 de f k ) x a m ( p0 p2 p) x a m ( tw m m 8m m 2 . 4 m m 1 . 0 + 5 . 1 ) m m 0 . 0 - m m 5 . 0 5 0 . 0 0 1 . 0 5 7 . 1 m m 5 0 . 0 5 . 3 m m m m 4 . 2 1 . 0 0 . 4 m m 1 . 0 0 . 4 m m 5 0 . 0 0 . 2 m m m m 4 . 0 m m 0 . 8 m m 3 . 0 + m m 1 . 0 - device orientation in tape pin 1 in upper left towards sprocket holes 2522p xx xx = date code pin 1 location
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