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SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 1 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 28 v, 56 m ? , load switch with programmable current limit and slew rate control operation description SIP32419 and sip32429 are load switches that integrate multiple control features that simplify the design and increase the reliability of the circuitry connected to the switch. both devices are 56 m ? switches designed to operate in the 6 v to 28 v range. an internally generated gate drive voltage ensures good r on linearity over the input voltage operating range. the SIP32419 and sip32429 have a slew rate control circuit that controls the switch turn-on time to the value set by an external capacitor. after soft start, an over-current protection circuit (ocp) continuously monitors the current through the load switch, and controls the switch impedance to limit the current to the level programmed by an external resistor. if the over-current condition persists for more th an 7 ms, the switch shuts off automatically. the SIP32419 and sip32429 has an over temperature protection circuit (otp) which will shut the switch off if the junction temperature exceeds about 135 c. the otp circuit will release the switch when the temperature has decreased by about 40 c of hysteresis. when an ocp or an otp fault condition is detected the flg pin is pulled low. for the sip32429, the fault flag will release 150 ms after the fault condition is cleared, and the switch will automatically turn on at the programmed slew rate. for the SIP32419, the switch will remain off and the fault flag will remain on. the switch will be reset by toggling either control signal on en pin or the input power if it is not under over temperature fault condition. these devices feature a low vo ltage control logic interface which can be controlled without the need for level shifting. these devices also include a power good flag. SIP32419 and sip32429 are available in a space efficient dfn10 3 mm x 3 mm package. features ? 6 v to 28 v operation ? programmable soft start ? programmable current limit ? over temperature protection ? on resistance 56 m ? ? power good, when v out reaches 90 % of v in ?fault flag ? under voltage lockout: 4.8 v / 5.4 v (typ. / max.) ? package: dfn10 3 mm x 3 mm ? sip32429 will turn off the switch under fault conditions, and re-try to turn on throug h the full soft start procedure 150 ms after the switch is off if there is no ot fault. ? SIP32419 will turn off the swit ch under fault conditions and remain off. the switch can be reset by toggling either signal on en pin or the input power if it is not under over temperature fault condition. ? material categorization: fo r definitions of compliance please see www.vishay.com/doc?99912 applications ? personal computers ? lighting ? flat panel displays ? game consoles ? industrial ? network communication ? data storage typical application circuit fig. 1 - SIP32419, sip32429 ty pical appl ication circuit available
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 2 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 note ? ge4 denotes halogen-fr ee and rohs-compliant notes a. device mounted with all lead and power pad soldered or welded to pcb. b. derate 11.4 mw/c above t a = 25 c. ? ? stresses beyond those listed under absolute maximum ratings ma y cause permanent damage to th e device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those in dicated in the operational sectio ns of the specifications is not implied. exposure to absolute maximum rating conditions for extended pe riods may affect device reliability. ? ordering information temperature range package marking part number -40 c to +85 c dfn10 3 mm x 3 mm 2429 sip32429dn-t1-ge4 2419 SIP32419dn-t1-ge4 absolute maximum ratings parameter limit unit input voltage (v in ) -0.3 to 30 v output voltage (v out ) -0.3 to v in + 0.3 v -5 v for 5 s pg voltage -0.3 to 30 flg voltage -0.3 to 30 en voltage -0.3 to 6 maximum continuous switch current 4.5 a esd rating (hbm) 4000 v maximum junction temperature 150 c storage temperature -55 to +150 thermal resistance ( thja ) a 88 c/w power dissipation (p d ) a, b 1.42 w recommended operating range parameter limit unit input voltage (v in )6 to 28 v v ss 0 to 6 v out 0 to 28 en 0 to 6 flg . pg 0 to v in i lim 0 to 6 current limit 0.75 to 3.5 a operating temperature range -40 to +85 c
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 3 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 specifications parameter symbol test conditions unless specified v in = 12 v, v en = 2.4 v, t a = 25 c temp. min. typ. max. unit power input voltage v in -6 -28v quiescent current i q i out = 0 a, and device enabled - - 170 300 a shutdown current i sd i out = 0 a, and device disabled - - 12 20 switch off leakage i (off) v in = 28 v, v out = 0 v (current measured at output) -- - 1 current limit accuracy r set = 4.1 k ? -40 c to +85 c 1.2 1.5 1.8 a switch on resistance r ds(on) i sw = 500 ma - - 56 72 m ? soft start charge current i ss constant current source - - 4.5 - a turn on delay time t on_dly 50 % v en to 50 % v out , c ss = open, r l = 10 ? , c out = 10 f - - 550 - s turn on rise time t r c ss = open, r l = 10 ? , c out = 10 f - - 400 - c ss = 47 nf, r l = 10 ? , c out = 10 f -- 7 - ms c ss = 47 nf, no r l , c out = 10 f -- 2 - turn off delay t off_dly -- 1 - s current limit response time - - 20 - short circuit response time - - 1 - oc flag blanking time / ? switch off delay under oc -40 c to +85 c 4-- ms auto re-try time (sip32429 only) - - 150 - input logic high voltage v enh v in = 6 v to 28 v -40 c to +85 c 1.5 - - v input logic low voltage v enl -40 c to +85 c --0.6 input pull down resistor r en v en = 5 v - - 2.5 - m ? power good trip voltage - - 90 % x v in - v power good hysteresis - - 3 % x v in - pg and flg output logic low voltage i sink = 1 ma - - < 0.1 - pg and flg output high leakage v pg , v flg = 28 v - - - 1 a uvlo threshold --4.85.4 v uvlo hysteresis --0.28- thermal shut-down threshold - - 137 - c thermal shut-down hysteresis - - 39 -
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 4 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 timing diagram fig. 2 - timing diagram pin configuration fig. 3 - dfn10 3 mm x 3 mm package top view over temperature or end of blanking time v out current limit mode en /p g i out i lim /fl g 150 m s retry time. in ca s e of ot, it i s ot protection period plu s 150 m s load current below limit s hort circuit re s pon s e time 5 m s or ot which ever occur s the fir s t programmable s lew rate low s witch on re s i s tance thermal s hutdown & over current off latching programmable over current protection & 6 m s blanking period 1 s s hort circuit re s pon s e auto retry in 150 m s v in 1 v in 2 ss 3 en 4 i lim 5 v out 10 v out 9 fl g 8 p g 7 g nd 6
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 5 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 ? block diagram fig. 4 - block diagram typical characteristics (internally regulated, 25 c, unless otherwise noted) fig. 5 - quiescent current vs. input voltag e fig. 6 - quiescent current vs. temperature pin description pin number name function 1v in power input 2v in power input 3ss soft-start pin. connect a capacitor from ss to gnd to program the soft-start time. leave ss open to set the de fault soft-start time of 400 s. 4 en enable input. logic high enabled 5i lim current limit setting pin. connect r set resistor to gnd 6 gnd ground 7pg power good 8flg fault condition flag 9v out switch output 10 v out switch output central pad connect this pad to gnd or leave it floating driver s lew rate control current limit under voltage lockout regulator logic, timing, & control thermal protection /fl g ss /p g en i lim v out v in 6 v to 28 v c in c out 28 v max. to load c ss r s et on off g nd 100 110 120 130 140 150 160 170 180 190 200 5 10 15 20 25 30 i q - q uie s cent current (a) v in (v) 100 110 120 130 140 150 160 170 180 190 200 - 40 - 20 0 20 40 60 80 100 i q - q uie s cent current (a) temperature ( c) v in = 6 v v in = 12 v v in = 28 v
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 6 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 typical characteristics (internally regulated, 25 c, unless otherwise noted) fig. 7 - shutdown current vs. input voltage fig. 8 - shutdown current vs. input voltage fig. 9 - on resistance vs. input voltage fig. 10 - shutdown current vs. temperature fig. 11 - switch off current vs. temperature fig. 12 - on resist ance vs. temperature 0 2 4 6 8 10 12 14 16 18 20 5 10 15 20 25 30 i s d - s hutdown current ( a) v in (v) -2 -1.8 -1.6 -1.4 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 5 10 15 20 25 30 i (off) - s witch off current (na) v in (v) 58 59 60 61 62 63 64 65 5 1015202530 r d s - on-re s i s tance (m) v in (v) i s w = 0.5 a 0 2 4 6 8 10 12 14 16 18 20 22 24 - 40 - 20 0 20 40 60 80 100 i s d - s hutdown current ( a) temperature ( c) v in = 12 v v in = 28 v v in = 6 v -200 -175 -150 -125 -100 -75 -50 -25 0 25 - 40 - 20 0 20 40 60 80 100 i (off) - s witch off current (na) temperature ( c) v in = 6 v v in = 28 v v in = 12 v 45 50 55 60 65 70 75 80 - 40 - 20 0 20 40 60 80 100 r d s - on-re s i s tance (m) temperature ( c) i s w = 0.5 a v in = 12 v
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 7 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 typical characteristics (internally regulated, 25 c, unless otherwise noted) fig. 13 - soft start current vs. input voltage fig. 14 - threshold voltage vs. input voltage fig. 15 - soft start current vs. temperature fig. 16 - en current vs. v en - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0 5 1015202530 i ss - s oft s tart current ( a) v in (v) 1 1.05 1.1 1.15 1.2 1.25 1.3 5 1015202530 en thre s hold voltage (v) v in (v) v ih v il -4.8 -4.7 -4.6 -4.5 -4.4 -4.3 -4.2 -4.1 -4 - 40 - 20 0 20 40 60 80 100 i ss - s oft s tart current ( a) temperature ( c) v in = 12 v 0 0.5 1 1.5 2 2.5 0 1 2 3 4 5 6 i en - en current ( a) v en (v) v in = 12 v
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 8 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 typical characteristics (internally regulated, 25 c, unless otherwise noted) fig. 17 - en resistance vs. temperature fig. 18 - rise time vs. temperature fig. 19 - turn-on delay time vs. temperature fig. 20 - turn-off delay time vs. temperature fig. 21 - rise ti me vs. temperature 1.5 1.75 2 2.25 2.5 2.75 3 3.25 3.5 - 40 - 20 0 20 40 60 80 100 r en - en re s i s tance (m) temperature ( c) v in = 12 v v en = 5v 350 375 400 425 450 475 500 - 40 - 20 0 20 40 60 80 100 t r - ri s e time ( s ) temperature ( c) v in = 12 v c ss = open c l = 10 f r l = 10 300 400 500 600 700 800 900 1000 - 40 - 20 0 20 40 60 80 100 t on_dly - turn-on delay time ( s ) temperature ( c) v in = 12 v c ss = open c l = 10 f 0.50 0.60 0.70 0.80 0.90 1.00 - 40 - 20 0 20 40 60 80 100 t off-dly - turn-off delay time ( s ) temperature ( c) v in = 12 v c ss = open c l = 10 f r l = 10 3 4 5 6 7 8 9 10 11 - 40 - 20 0 20 40 60 80 100 t r - ri s e time (m s ) temperature ( c) v in = 12 v c ss = 47nf c l = 10 f r l = 10
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 9 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 typical waveforms fig. 22 - turn-on time, v in = 12 v, c ss = open, r l = 10 ? , c l = 10 f fig. 23 - turn-on time, v in = 12 v, c ss = 47 nf, r l = 10 ? , c l = 10 f fig. 24 - turn-on time, v in = 12 v, c ss = 47 nf, r l = open, c l = 10 f fig. 25 - turn-off time, v in = 12 v, c ss = open, r l = 10 ? , c l = 10 f fig. 26 - turn-off time, v in = 12 v, c ss = 47 nf, r l = 10 ? , c l = 10 f fig. 27 - turn-off time, v in = 12 v, c ss = 47 nf, r l = open, c l = 10 f
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 10 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 typical waveforms fig. 28 - current limit from 25 ? to 2 ? load, v in = 12 v fig. 29 - SIP32419 remains off after seei ng fault condition fig. 30 - current limit from 25 ? to 0.5 ? load, v in = 12 v fig. 31 - sip32429 re-starts after ~ 150 ms during fault condition v out =2 v/div v flg =5v/div i out =1a/div v pg =2 v/div 2ms/div v out =2 v/div v flg =5v/div i out =1a/div v pg =2 v/div 2ms/div
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 11 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 detailed description over current limit the SIP32419 and sip32429 current limit control circuit responses within 1 s (typ.) when an over current event occurs. during this brief peri od before the over current protection circuit is engaged, the parts will see a surge current especially under a severe output short condition. the magnitude of the surge cu rrent developed during the period when the overcurrent protection is not engaged is determined by impedance in the loop from the input current source to ground and the resp onse time. this impedance is the sum total of the current source impedance, the path resistance and inductance and the load impedance. it is recommended to design the circuit to keep the peak current under 50 a by ensuring that there is sufficient impedance in the path to limit current to this recommended maximum of 50 a. once the current limit circuit is engaged, the SIP32419 / sip32429 will limit the current to the programmed set point. if the over current event exceeds 7 ms, the switch is turned off and the flg pin is pulled low. the sip32429 features auto retry logic design and as long as enable is high, the part will re start after a 150 ms time out. the SIP32419 will remain off and can be reset by toggling v in or en. the current limit is set by connecting a resistor between the i lim pin and gnd. r set can be calculated by the following formula: where: ? i lim = is the target current limit setting. fig. 32 - current limit vs. r set ? soft start the soft start time can be calculated by the following formula: where: ? ? t is the soft start time ? ? v out is the output voltage range ? i ss is the built-in current source charging the soft start capacitor c ss . i ss value is 5 a typical. ? c ss is the soft start time setting capacitor. ? r set is the current limit setting resistor. ? r out is the output load. ? enable the enable pin needs to be hi gh for the devi ce to become active. this can be accomplished by applying a logic high signal to the en pin. alternatively this pin can be hardwired through a resistor divider to the v in , thus keeping the switch permanently on as long as the supply is present. ? flg the flg is an open drain output and will be pulled low in fault condition. this pin can be pulled up through a 100k resistor. ? pg the pg is an open drain output th at will be pulled low when output voltage passes 90 % of the v in . this pin can be pulled up through a 100k resistor. ? r set selection table r set (k ? ) current limit (a) tol. (%) min. typ. max. 1.74 2.85 3.56 4.28 20 1.78 2.78 3.48 4.18 20 1.82 2.73 3.41 4.09 20 2.21 2.25 2.81 3.37 20 2.80 1.77 2.21 2.66 20 3.57 1.39 1.74 2.08 20 4.12 1.20 1.50 1.81 20 4.53 1.03 1.37 1.71 25 5.76 0.81 1.08 1.35 25 7.32 0.64 0.85 1.06 25 8.25 0.56 0.75 0.94 25 1.24 v i lim = r set x 5000 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0246810 i lim , current limit (a) r s et (k ) i ss c ss r out x 5000 r set v out t x =
SIP32419, sip32429 www.vishay.com vishay siliconix s16-2135-rev. e, 24-oct-16 12 document number: 63939 for technical questions, contact: powerictechsupport@vishay.com 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 application information input capacitor while bypass capacitors at the inputs pins are not required, a 2.2 f or larger capacitors for c in is recommended in almost all applications. the bypass capacitors should be placed as physically close to th e devices input pins to be effective to minimize transi ents on the input. ceramic capacitors are recommended over tantalum because of their ability to withstand input current surges from low impedance sources such as batteries. ? output capacitor the device does not require an output capacitor for proper operation. a proper value c out is recommended to accommodate load tran sient per circuit design requirements. there are no esr or capacitor type requirements. ? over temperature shutdown in case an over temperature event happens, the SIP32419 and sip32429 will turn the sw itch off immediately. the sip32429 will then retry to start 150 ms after the temperature is back to norma l; during this period, flg will be pulled low. the sip32429 flg will be pulled high 150 ms after the ot event has finished. the SIP32419 will remain off and not retry to start, flg will remain to be pulled low. ? thermal consideration SIP32419 and sip23429 are designed to maintain a constant output load current. due to physical limitations of the layout and assembly of th e device the maximum switch current should be kept at reas onably safe level. however, another limiting characteristic of the safe operating load current is the therma l power dissipation. soa fig. 33 - soa on application board fig. 34 - application board layout ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? vishay siliconix maintains worldw ide manufacturing ca pability. products may be manufactured at one of several qualified locatio ns. reliability da ta for silicon technology and package reliability represent a composite of all qu alified locations. for related documents such as package/tape drawings, part marking, and reliability data, see www.vishay.com/ppg?63939 . 0.01 0.1 1 10 0.01 0.1 1 10 100 i d (a) v d s (v) 25 c ambient s ingle pul s e 1 m s dc 10 m s 100 m s 1 s 10 s
bottom view notes: 1. all dimensions are in millimeters and inches. 2. n is the total number of terminals. 3. dimension b applies to metallized terminal and is measured between 0.15 and 0.30 mm from terminal tip. 4. coplanarity applies to the exposed heat sink slug as well as the terminal. 5. the pin #1 identifier may be either a mold or marked feature, it must be located within the zone iindicated. e/2 5 index area d/2 e/2 5 c 0.15 2x c 0.15 2x package information vishay siliconix document number: 73181 29-nov-04 www.vishay.com 1 dfn-10 lead (3 x 3) millimeters inches dim min nom max min nom max a 0.80 0.90 1.00 0.031 0.035 0.039 a1 0.00 0.02 0.05 0.000 0.001 0.002 a3 0.20 bsc 0.008 bsc b 0.18 0.23 0.30 0.007 0.009 0.012 d 3.00 bsc 0.118 bsc d2 2.20 2.38 2.48 0.087 0.094 0.098 e 3.00 bsc 0.118 bsc e2 1.49 1.64 1.74 0.059 0.065 0.069 e 0.50 bsc 0.020 bsc l 0.30 0.40 0.50 0.012 0.016 0.020 *use millimeters as the primary measurement. ecn: s-42134?rev. a, 29-nov-04 dwg: 5943
legal disclaimer notice www.vishay.com vishay revision: 13-jun-16 1 document number: 91000 disclaimer ? all product, product specifications and data ar e subject to change with out 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 fo r any errors, inaccuracies or incompleteness contained in any datasheet or in any o ther disclosure relating to any product. vishay makes no warranty, representation or guarantee regarding the suitability of th e 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 implied warranties, includ ing warranties of fitness for particular purpose, non-infringement and merchantability. statements regarding the suitability of products for certain types of applicatio ns 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 applic ation. it is the customers responsibility to validate tha t a particular product with the prope rties described in the product sp ecification is suitable for use in a particular application. parameters provided in datasheets and / or specifications may vary in different ap plications and perfor mance may vary over time. all operating parameters, including ty pical parameters, must be va lidated for each customer application by the customer s technical experts. product specifications do not expand or otherwise modify vishays term s and conditions of purchase, including but not limited to the warranty expressed therein. except as expressly indicated 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 vishay product could result in personal injury or death. customers using or selling vishay product s not expressly indicated for use in such applications do so at their own risk. please contact authorized vishay personnel to obtain writ ten terms and conditions rega rding products designed for such applications. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is gran ted by this document or by any conduct of vishay. product names and markings noted herein may be trademarks of their respective owners.

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