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vishay siliconix SIP32451, sip32452, sip32453 document number: 63315 s12-2345-rev. d, 8-oct-12 www.vishay.com 1 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com 0.9 v to 2.5 v, 55 m ? load switch in wcsp4 description SIP32451, sip32452 and sip324 53 are n-channel integrated high side load switches that operate from 0.9 v to 2.5 v input voltage range. SIP32451, sip32452 and sip32453 have low input logic control threshold that can inte rface with low voltage control gpio directly without extra level shift or driver. there is a pull down at this en logic control pin. turn on time is fast, less than 25 s typically for input voltage of 1.2 v or higher. SIP32451 and sip32452 have fast turn off delay time of less than 1 s while sip32453 features a guaranteed turn off delay of greater than 30 s, typically 90 s. SIP32451 features an output discharge for fast turn off. SIP32451, sip32452 and sip32453 are available in compact wafer level csp package, wcsp4 0.8 mm x 0.8 mm with 0.4 mm pitch. features ? low input voltage, 0.9 v to 2.5 v ? low r on , 55 m ? typical ? fast turn on time ? low logic control with hysteresis ? reverse current blocking when disabled ? integrated pull down at en pin ? output discharge (SIP32451) ? 4 bump wcsp 0.8 mm x 0. 8 mm with 0.4 mm pitch package ? material categorization: for definitions of compliance please see www.vishay.com/doc?9991 applications ? battery operated devices ? smart phones ? gps and pmp ? computer ? medical and healthcare equipment ? industrial and instrument ? cellular phones and portable media players ? game console typical application circuit figure 1 - SIP32451, sip32452, and sip32453 typical application circuit SIP32451, sip32452, sip32453 i n v out out v i n g n d g n d g n d e n e n c i n c out
www.vishay.com 2 document number: 63315 s12-2345-rev. d, 8-oct-12 vishay siliconix SIP32451, sip32452, sip32453 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com note: ge1 denotes halogen-free and rohs compliant notes: a. device mounted with all leads and power pad soldered or welded to pc board. b. derate 3.6 mw/c above t a = 70 c. stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other condit ions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating/conditions for extended periods may affect device reliability. ordering information temperature range package marking part number - 40 c to 85 c wcsp4: 4 bumps (2 x 2, 0.4 mm pitch, 208 m bump height, 0.8 mm x 0.8 mm die size) aa SIP32451db-t2-ge1 ab sip32452db-t2-ge1 ac sip32453db-t2-ge1 absolute maximum ratings parameter limit unit supply input voltage (v in ) - 0.3 to 2.75 v enable input voltage (v en ) - 0.3 to 2.75 output voltage (v out ) - 0.3 to 2.75 maximum continuous switch current (i max. )1.2 a maximum pulsed current (i dm ) v in (pulsed at 1 ms, 10 % duty cycle) 2 esd rating (hbm) 4000 v junction temperature (t j ) - 40 to 150 c thermal resistance ( ? ja ) a 280 c/w power dissipation (p d ) a 196 mw recommended operating range parameter limit unit input voltage range (v in ) 0.9 to 2.5 v operating junction temperature range - 40 to 125 c
document number: 63315 s12-2345-rev. d, 8-oct-12 www.vishay.com 3 vishay siliconix SIP32451, sip32452, sip32453 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com notes: a. the algebraic convention whereby the most negative value is a minimu m and the most positive a maximum. b. typical values are for design aid only, not guaranteed nor subject to production testing. c. for v in outside this range consult ty pical en threshold curve. specifications parameter symbol test conditions unless specified v in = 1 v, t a = - 40 c to 85 c (typical values are at t a = 25 c) limits unit min. a typ. b max. a operating voltage c v in 0.9 - 2.5 v quiescent current i q v in = 1.2 v, v en = v in , out = open -1015 a v in = 2.5 v, v en = v in , out = open -3460 off supply current i q(off) SIP32451 en = gnd, out = open --30 sip32452, sip32453 - - 1 off switch current i ds(off) en = gnd, out = 0 v - - 30 reverse blocking current i rb v out = 2.5 v, v in = 0.9 v, v en = 0 v - 0.001 10 on-resistance r ds(on) v in = 1 v, i l = 200 ma, t a = 25 c -5665 m ? v in = 1.2 v, i l = 200 ma, t a = 25 c -5565 v in = 1.8 v, i l = 200 ma, t a = 25 c -5465 v in = 2.5 v, i l = 200 ma, t a = 25 c -5465 on-resistance temp.-coefficient tc rds - 3900 - ppm/c output pulldown resistance r pd v en = 0 v, t a = 25 c (SIP32451 only) - 425 550 ? en input low voltage c v il v in = 1 v --0.1 v en input high voltage c v ih v in = 2.5 v 1.5 - - en input leakage i en v in = 2.5 v, v en = 0 v --1 a v in = 2.5 v, v en = 2.5 v -1015 output turn-on delay time t d(on) v in = 1.2 v r load = 10 ? , c l = 0.1 f t a = 25 c -0.41 s v in = 2.5 v -0.051 output turn-on rise time t r v in = 1.2 v 10 20 30 v in = 2.5 v 59.820 output turn-off delay time t d(off) SIP32451, sip32452 v in = 1.2 v -0.251 SIP32451, sip32452 v in = 2.5 v -0.151 sip32453, v in = 1.2 v 30 98 150 sip32453, v in = 2.5 v 30 86 150
www.vishay.com 4 document number: 63315 s12-2345-rev. d, 8-oct-12 vishay siliconix SIP32451, sip32452, sip32453 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com pin configuration typical characteristics (internally regulated, 25 c, unless otherwise noted) figure 2 - wcsp4 2 x 2 package pin description pin number name function a1 in this pin is the n-channel mosfet drain connec tion. bypass to ground through a 4.7 f capacitor. a2 out this pin is the n-channel mosfet source co nnection. bypass to ground th rough a 0.1 f capacitor. b1 en enable input b2 gnd ground connection a b en gnd out in index-bump a1 w b a 12 out in 1 2 a b en gnd backside bumpside figure 3 - quiescent current vs. input voltage figure 4 - off supply current vs. input voltage 0 5 10 15 20 25 30 35 40 45 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 i q - quiescent current (a) v in (v) v in (v) i q(off) - off supply current (na) 0 2 4 6 8 10 12 0.8 1.2 1.6 2.0 2.4 2.8 sip32452 and sip32453 figure 5 - quiescent current s. temperature figure 6 - off supply current s. temperature 100 0 5 10 15 20 25 30 35 40 45 50 - 40 - 20 0 20 40 60 80 i q - quiescent current (a) temperature (c) v in = 1 v v in = 2.5 v v in = 1.2 v temperature (c) i q(off) - off supply current (na) 0.0001 0.001 0.01 0.1 1 10 100 1000 - 40 - 20 0 20 40 60 80 100 v in = 2.5 v v in = 1.2 v v in = 1 v sip32452 and sip32453
document number: 63315 s12-2345-rev. d, 8-oct-12 www.vishay.com 5 vishay siliconix SIP32451, sip32452, sip32453 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com typical characteristics (internally regulated, 25 c, unless otherwise noted) figure 7 - off supply current vs. input voltage figure 8 - off switch current vs. input voltage figure 9 - r ds(on) vs. v in 400 500 600 700 800 900 1000 1100 1200 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 i q(off) - off supply current (na) v in (v) SIP32451 v in (v) i ds(off) - off switch current (na) 200 300 400 500 600 700 800 900 1000 0.8 1.2 1.6 2 2.4 2.8 v in (v) r ds - on-resistance (m ) 50 52 54 56 58 60 62 64 66 0.8 1.2 1.6 2.0 2.4 2.8 i o = 0.2 a i o = 0.5 a i o = 1.2 a figure 10 - off supply current vs. temperature figure 11 - off switch current vs. temperature figure 12 - r ds(on) vs. temperature 1 10 100 1000 10 000 100 000 - 40 - 20 0 20 40 60 80 100 i iq(off) - off supply current (na) temperature ( c) SIP32451 v in = 1 v v in = 1.2 v v in = 2.5 v temperature (c) i ds(off) - off switch current (na) 0 1 10 100 1000 10 000 100 000 - 40 - 20 0 20 40 60 80 100 v in = 1 v v in = 2.5 v v in = 1.2 v temperature (c) r ds - on-resistance (m ) 40 45 50 55 60 65 70 75 - 40 - 20 0 20 40 60 80 100 v in = 1.2 v i o = 200 ma
www.vishay.com 6 document number: 63315 s12-2345-rev. d, 8-oct-12 vishay siliconix SIP32451, sip32452, sip32453 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com typical characteristics (internally regulated, 25 c, unless otherwise noted) figure 13 - i en vs. v en figure 14 - reverse blocking current vs. temperature figure 15 - output pulldown resistance vs. input voltage v en (v) i en - en current (a) 0 2 4 6 8 10 12 0 0.5 1 1.5 2 2.5 v in = 2.5 v 0 20 40 60 80 100 - 40 - 20 0 20 40 60 80 100 i in (na) temperature (c) v out = 2.5 v v in = 0.9 v 410 415 420 425 430 435 440 0.8 1.0 1.2 1.4 1.6 1. 8 2.0 2.2 2.4 2.6 2.8 r pd - output pulldown resistance ( ) v in (v) SIP32451 only v out = v in figure 16 - reerse blocking current s. output voltage figure 17 - en threshold voltage s. input voltage figure 18 - output pulldown resistance s. temperature 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 i in (na) v out (v) v in = 0.9 v v in (v) en threshold voltage (v) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 v ih v il 400 410 420 430 440 450 460 - 40 - 20 0 20 40 60 80 100 r pd - output pulldown resistance () temperature ( c) SIP32451 only v out = v in = 2.5 v
SIP32451, sip32452, sip32453 vishay siliconix document number: 63315 s12-2345-rev. d, 8-oct-12 www.vishay.com 7 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com typical characteristics (internally regulated, 25 c, unless otherwise noted) figure 19 - turn-on delay time vs. temperature figure 20 - turn-off delay time vs. temperature temperature (c) t d(on) - turn-on delay time (s) 0.050 0.055 0.060 0.065 0.070 0.075 0.080 0.085 0.090 0.095 0.100 - 40 - 20 0 20 40 60 80 100 v in = 2.5 v c l = 0.1 f r l = 10 0.00 0.05 0.10 0.15 0.20 0.25 0.30 - 40 - 20 0 20 40 60 80 100 t d(off) - turn off delay time (s) temperature (c) SIP32451 and sip32452 v in = 2.5 v c l = 0.1 f r l = 10 temperature (c) t r - rise switching time (s) 5 6 7 8 9 10 11 12 13 14 - 40 - 20 0 20 40 60 80 100 v in = 2.5 v c l = 0.1 f r l = 10 60 70 80 90 100 110 120 - 40 - 20 0 20 40 60 80 100 t d(off) - turn off delay time (s) temperature (c) sip32453 v in = 2.5 v c l = 0.1 f r l = 10
www.vishay.com 8 document number: 63315 s12-2345-rev. d, 8-oct-12 vishay siliconix SIP32451, sip32452, sip32453 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com typical waveforms block diagram figure 23 - turn-on time (v in = 1.2 v) figure 24 - SIP32451 and sip32452 turn-off time (v in = 1.2 v) figure 25 - sip32453 turn-off time (v in = 1.2 v) figure 26 - turn-on time (v in = 2.5 v) figure 27 - SIP32451 and sip32452 turn-off time (v in = 2.5 v) figure 28 - sip32453 turn-off time (v in = 2.5 v) figure 29 - functional block diagram gnd out en in control logic charge pump
SIP32451, sip32452, sip32453 vishay siliconix document number: 63315 s12-2345-rev. d, 8-oct-12 www.vishay.com 9 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com detailed description SIP32451, sip32452 and sip32453 are n-channel power mosfet designed as high side load switch. once enable the device charge pumps the gate of the power mosfet to a constant gate to source voltage for fast turn on time. the mostly constant gate to so urce voltage keeps the on resistance low through out the input voltage range. when disable, the SIP32451 and sip32452 pull the gate of the output n-channel low right away for a fast turn off delay while there is a build-in turn off delay for the sip32453. the SIP32451 especially features a output discharge circuit to help discharge the output capacitor. the turn off delay for the sip32453 is guaranteed to be at least 30 s. because the body of the output n-channel is always connected to gnd, it prevents the current from going back to the input in case the output voltage is higher than the output. application information input capacitor while a bypass capacitor on the input is not required, a 4.7 f or larger capacitor for c in is recommended in almost all applications. the bypass capacitor should be placed as physically close as possible to the input pin to be effective in minimizing transients on the input. ceramic capacitors are recommended over tantalum be cause of their ability to withstand input current surges from low impedance sources such as batteries in portable devices. output capacitor a 0.1 f capacitor across v out and gnd is recommended to insure proper slew operation. there is inrush current through the output mosfet and the magnitude of the inrush current depends on the output capacitor, the bigger the c out the higher the inrush current. there are no esr or capacitor type requirement. enable the en pin is compatible with cmos logic voltage levels. it requires at least 0.1 v or below to fully shut down the device and 1.5 v or above to fully turn on the device. protection against reverse voltage condition SIP32451, sip32452 and sip32453 can block the output current from going to the input in case where the output voltage is higher than the input voltage when the main switch is off. thermal considerations these devices are designed to maintain a constant output load current. due to physical limitations of the layout and assembly of the device the ma ximum switch current is 1.2 a as stated in the absolute maximum ratings table. however, another limiting characteristic for the safe operating load current is the thermal power dissipation of the package. to obtain the highest power dissipation (and a thermal resistance of 280 c/w) the device should be connected to a heat sink on the printed circuit board. the maximum power dissipation in any application is dependant on the maximum junction temperature, t j(max.) = 125 c, the junction-to-ambient thermal resistance, ? j-a = 280 c/w, and the ambient temperature, t a , which may be formulaically expressed as: it then follows that, assuming an ambient temperature of 70 c, the maximum power dissipation will be limited to about 196 mw. so long as the load current is below the 1.2 a limit, the maximum continuous switch current becomes a function two things: the package power dissipation and the r ds(on) at the ambient temperature. as an example let us calculate the worst case maximum load current at t a = 70 c. the worst case r ds(on) at 25 c is 65 m ? . the r ds(on ) at 70 c can be extrapolated from this data using the following formula: r ds(on) (at 70 c) = r ds(on) (at 25 c) x (1 + t c x ? t) where t c is 3900 ppm/c. continuing with the calculation we have r ds(on) (at 70 c) = 65 m ? x (1 + 0.0039 x (70 c - 25 c)) = 76.4 m ? the maximum current limit is then determined by which in this case is 1.6 a. under the stated input voltage condition, if the 1.6 a current lim it is exceeded the internal die temperature will rise and eventually, possibly damage the device. to avoid possible permanent damage to the device and keep a reasonable design margin, it is recommended to operate the device maximum up to 1.2 a only as listed in the absolute maximum ratings table. 2 8 0 125 (max.) (max.) a a j a j t t t p - = - = - n ds load r p i <
www.vishay.com 10 document number: 63315 s12-2345-rev. d, 8-oct-12 vishay siliconix SIP32451, sip32452, sip32453 this document is subject to change without notice. the products described herein and this document ar e subject to specific disclaimers, set forth at www.vishay.com/doc?91000 for technical questions, contact: powerictechsupport@vishay.com package outline wcsp4: 4 bumps (2 x 2, 0.4 mm pitch, 208 m bump height, 0.8 mm x 0.8 mm die size) notes: 1. laser mark on the backside surface of die. 2. bumps are sac396. 3. 0.050 max. coplanarity. vishay siliconix maintains worldwide manufacturing capability. products may be manufactured at one of several qualified locatio ns. reliability data for silicon technology and package reliability represent a composite of all qualified locations. for related documents such as package/tape drawings, part marking, and reliability data, see www.vishay.com/ppg?63315 dimension millimeters inches min. nom. max. min. nom. max. a 0.515 0.530 0.545 0.0202 0.0208 0.0214 a1 0.208 0.0081 b 0.250 0.260 0.270 0.0098 0.0102 0.0106 e 0.400 0.0157 d 0.720 0.760 0.800 0.0182 0.0193 0.0203 4 x ? b b u mp n ote 2 a b index-bump a1 w b a 12 1 2 a b mark on backside of die e e d d a a1 n ote 3 recommended land pattern all dimensions in millimeters 0.4 0.4 4 x ? 0.150 to 0.200 solder mask dia. - pad diameter + 0.1
package information www.vishay.com vishay siliconix revision: 10-oct-11 1 document number: 63459 this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 wcsp4: 4 bumps (2 x 2 , 0.4 mm pitch, 208 m bump height, 0.8 mm x 0.8 mm die size) notes (1) laser mark on the backside surface of die (2) bumps are sac396 (3) 0.050 max. coplanarity note a. use millimeters as the primary measurement. millimeters a inches dim. min. nom. max. min. nom. max. a 0.515 0.530 0.545 0.0202 0.0208 0.0214 a1 0.208 0.0081 b 0.250 0.260 0.270 0.0098 0.0102 0.0106 e 0.400 0.0157 d 0.720 0.760 0.800 0.0182 0.0193 0.0203 4 x ? b bump note 2 a b pin 1 mark w b a 12 1 2 a b mark on back s ide of die e e d d a a1 note 3 ec n : t11-0497-rev. b, 10-oct-11 dwg: 6004
legal disclaimer notice www.vishay.com vishay revision: 02-oct-12 1 document number: 91000 disclaimer all product, product specifications and data are subject to change without notice to improve reliability, function or design or otherwise. vishay intertechnology, inc., its affiliates, agents, and employee s, and all persons acting on it s or their behalf (collectivel y, vishay), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any o ther disclosure relating to any product. vishay makes no warranty, repres entation or guarantee regarding the suitabilit y of the products for any particular purpose or the continuing production of any product. to the maximum extent permitted by applicable law, vi shay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation specia l, consequential or incidental damages, and (iii) any and all i mplied warranties, including warra nties of fitness for particular purpose, non-infringement and merchantability. statements regarding the suitability of products for certain type s of applications are based on vishays knowledge of typical requirements that are often placed on vishay products in generic applications. such statements are not binding statements about the suitability of products for a particular application. it is the customers responsib ility to validate that a particu lar product with the properties descri bed in the product specification is suitable fo r use in a particular application. parameters provided in datasheets and/or specification s may vary in different applications an d performance may vary over time. all operating parameters, including typical pa rameters, must be validated for each customer application by the customers technical experts. product specifications do not expand or otherwise modify vish ays terms and condit ions of purchase, including but not limited to the warranty expressed therein. except as expressly indicate d in writing, vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the vi shay product could result in personal injury or death. customers using or selling vishay products not expressly indicated for use in such applications do so at their own risk. pleas e contact authorized vishay personnel to ob tain written terms and conditions regarding products designed for such applications. no license, express or implied, by estoppel or otherwise, to any intellectual prope rty rights is granted by this document or by any conduct of vishay. product names and markings noted herein may be trad emarks of their respective owners. material category policy vishay intertechnology, inc. hereby certi fies that all its products that are id entified as rohs-compliant fulfill the definitions and restrictions defined under directive 2011/65/eu of the euro pean parliament and of the council of june 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (eee) - recast, unless otherwis e specified as non-compliant. please note that some vishay documentation may still make reference to rohs directive 2002/95/ ec. we confirm that all the products identified as being compliant to directive 2002 /95/ec conform to directive 2011/65/eu. vishay intertechnology, inc. hereby certifi es that all its products that are identified as ha logen-free follow halogen-free requirements as per jedec js709a stan dards. please note that some vishay documentation may still make reference to the iec 61249-2-21 definition. we co nfirm that all the products identified as being compliant to iec 61249-2-21 conform to jedec js709a standards.
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