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september 2013 doc id 18022 rev 2 1/19 1 VB525SP-e high voltage ignition coil driver power integrated circuit features ecopack ? : lead free and rohs compliant primary coil voltage internally set coil current limit internally set logic level compatible input driving current quasi proportional to collector current single flag on coil current low voltage clamp thermal shutdown description the VB525SP-e is a high voltage power integrated circuit made using the stmicroelectronics? vipower? m1-3 technology, with darlin gton and logic level compatible vertical current flow power driving circuit. the enable pin allows to externally block the switch when the input is on. a built-in protection circuit for coil current limit ing and collector voltage clamping allows the device to be used as a smart, high voltage, high current interface in advanced electronic ignition systems. if the input signal from the microcontroller happens to remain high, the device protects itself against overheating by forcing collector current to smoothly decrease (low voltage clamp feature) to avoid undesired spark. type v cl i cl i cc VB525SP-e 380 v 10 a 150 ma 1 10 powerso-10 table 1. device summary package order codes tube tape and real powerso-10 VB525SP-e VB525SPtr-e www.st.com
contents VB525SP-e 2/19 doc id 18022 rev 2 contents 1 block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 absolute maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.1 electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.1 principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.2 feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.3 overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.1 ecopack ? packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.2 powerso-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.3 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
VB525SP-e list of tables doc id 18022 rev 2 3/19 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 3. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 4. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 table 5. electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 6. powerso-10 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 7. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
list of figures VB525SP-e 4/19 doc id 18022 rev 2 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. connection diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. switching time for inductive load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 4. flag current vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 5. single pulse avalanc he energy capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 6. self clamped inductive switching current vs time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 7. low voltage clamp feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 8. application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 9. powerso-10 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 figure 10. powerso-10 suggested pad layout and tube shipment (no suffix). . . . . . . . . . . . . . . . . . . 17 figure 11. powerso-10 tape and reel shipment (suffix ?tr?) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
VB525SP-e block diagram and pin description doc id 18022 rev 2 5/19 1 block diagram and pin description figure 1. block diagram table 2. pin function pin number name function 1, 5 lgnd signal ground 2, 3, 4 gnd emitter power ground 6eenable (1) 1. when grounded the input is enabled 7v cc logic supply voltage 8 bd base darlington 9 input logic input channel (internal pull down) 10 flag diagnostic output signal (open emitter) ta b h v c primary coil output driver (open collector) driver gnd reference r sense v cc hv c v in quasi prop. base current - thermal protection bd e diagnostic output v cc v r v f1 v lim v th sn limiter lgnd
block diagram and pin description VB525SP-e 6/19 doc id 18022 rev 2 figure 2. connection diagram (top view) 1 2 3 4 5 6 7 8 9 10 tab lgnd gnd gnd gnd lgnd e v cc bd input flag hv c note: pin 1 and pin 5 must be connected to pin2, pin 3 and pin 4
VB525SP-e electrical specifications doc id 18022 rev 2 7/19 2 electrical specifications 2.1 absolute maximum rating stressing the device above the ratings listed in the ?absolute maximum ratings? tables may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implie d. exposure to the conditions in this section for extended periods may affect device reliability. refer al so to the stmicroelectronics sure program and other relevant quality documents. table 3. absolute maximum ratings symbol parameter value unit hv c collector voltage (internally limited) -0.3 to v clamp v i c collector current (internally limited) 10 a i c(gnd) dc current on emitter power 10.5 a v cc driving stage supply voltage -0.3 to 7 v i s driving circuitry supply current 200 ma i s(gnd) dc current on ground pin 1 a v in input voltage -0.3 to v cc + 0.3 v i in maximum input current 100 ma f in logic input frequency in operative mode dc to 150 hz v out(flag) output voltage primary threshold current level -0.3 to v cc + 0.3 v i out(flag) flag output current 100 ma p max power dissipation (t c = 25 c) 125 w e s/b self clamped energy during output power clamping (see figure 5 ) 275 mj v esd esd voltage (hv c pin) 4 kv v esd esd voltage (enable pin) +1.5; -2 kv v esd esd voltage (other pins) 2 kv i bd input darlington base current 150 ma v bd input darlington base voltage internally limited v t j operating junction temperature -40 to 150 c t stg storage temperature range -55 to 150 c v e maximum enable voltage -0.3 to 5.5 v i e maximum enable current 150 a
electrical specifications VB525SP-e 8/19 doc id 18022 rev 2 2.2 thermal data table 4. thermal data symbol parameter value unit r thj-case thermal resistance junction-case (max) 1 c/w r thj-amb thermal resistance junc tion-ambient (max) 51 c/w
VB525SP-e electrical characteristics doc id 18022 rev 2 9/19 3 electrical characteristics 5.3 v < v bat < 24 v; v cc = 5 v 10 %; -40 c < t j < 125 c; r coil =580m ; l coil =3.75mh unless otherwise specified (a) . a. parametric degradation are allowed with 5.3 v< v b < 10 v and v b >24v. table 5. electrical characteristics symbol parameter test conditions min typ max unit v cl high voltage clamp i coil = 6.5 a 320 380 420 v v lcl low voltage clamp i coil = 6.5 a; t j =t sd 30 40 50 v v ce(sat) power stage saturation voltage i c =6a; v in =4v 1.5 2 v i cc(stdby) standby supply current in = off 11 ma i cc dc logic current v b =16v; i c = 6.5 a; f = 100 hz; load = coil; v cc =5.5v 40 ma i cc(peak) peak dc logic current during on phase i c = 6.5 a 100 150 ma v cc dc logic voltage 4.5 5.5 v i cl coil current limit -40 c < t j < 125 c (1) 911a i c(off) output off-state current in = off; v hvc =24v; v cc =5v; t j =25c 5ma v inh high level input voltage v cc =4.5v 4 v cc v v inl low level input voltage v cc = 5.5 v -0.3 0.8 v v in(hyst) input threshold hysteresis 0.4 v i inh high level input current v in =4v 100 a i inl low level input current v in =0.8v 0 30 a i inpd input active pull down v in =4v 10 100 a v diagh high level flag output voltage r ext =22k ; c ext =1nf (2) v cc - 1 v cc v v diagl low level flag output voltage r ext =22k ; c ext =1nf (2) 0.5 v i diagth coil current level threshold t j = 25 c 4.25 4.5 4.75 a i diagtd coil current level threshold drift (see figure 4 )
electrical characteristics VB525SP-e 10/19 doc id 18022 rev 2 i diag high level flag output current i c > i diagth ; v diag =3v 0.5 ma i diag(leak) leakage current on flag output v in =low; v cc =5.5v 10 a v f anti parallel diode forward voltage i c =-1a 2 v e s/b single pulse avalanche energy l=6mh; i c = 8 a 180 mj t on turn-on time r c =0.5 ; l c =3.75mh; t j =25c; v bat =13v (see figure 3 ) 15s t off turn-off time r c =0.5 ; l c =3.75mh; i c = 6.5 a; t j =25c; v bat =13v (see figure 3 ) 15 25 s t sd thermal shutdown intervention 150 c v eh high level enable voltage v in =v inh ; out = off (3) 2v v el low level enable voltage v out free to follow v in 0.40 v i eh high level enable current v e =5v 500 a i el low level enable current v e < 0.4 v -200 a v bd(off) base darlington voltage off v e =v eh 1v v bd(on) base darlington voltage on v in =v inh ; v e =v el ; i c =6.5a 1.8 v 1. the primary coil current value i cl must be measured ms after desaturation of the power stage. 2. no internal pull-down. 3. if enable pin is floating out = off for every input status. table 5. electrical characteristics (continued) symbol parameter test conditions min typ max unit
VB525SP-e electrical characteristics doc id 18022 rev 2 11/19 figure 3. switching time for inductive load t t v gen v cc 3v v bat t on t off 100v r gen v gen d.u.t c e v bat
electrical characteristics VB525SP-e 12/19 doc id 18022 rev 2 3.1 electrical char acteristics curves figure 4. flag current vs temperatur e figure 5. single pulse avalanche energy capability figure 6. self clamped inductive switching current vs time figure 7. low voltage clamp feature 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 0 102030405060708090100110 l (mh) e (mj) tc=25o tc=150o 0 2 4 6 8 10 200 300 400 500 600 700 800 900 1000 time in clamp (sec) inductive current (a) t=25o t=150o
VB525SP-e application schematic doc id 18022 rev 2 13/19 4 application schematic figure 8. application diagram 4.1 principle of operation the VB525SP-e is mainly intended as a high voltage power switch device driven by a logic level input and interfaces directly to a high energy electronic ignition coil. the input v in of the VB525SP-e is fed from a low power signal generated by an external controller that determines both dwell time and ignition point. during v in high ( 4v) the VB525SP-e increases current in the coil to t he desired, internally set current level. after reaching this level, the coil current remains constant until the ignition point, that corresponds to the transition of v in from high to low (typ. 1.9 v threshold). during the coil current switch-off, the primary voltage hv c is clamped at an internally set value v cl , typically 380 v. the transition from saturation to desaturation, coil current limiting phase, must have the ability to accommodate an overvoltage. a maximum overshoot of 20 v is allowed. 4.2 feedback when the collector current exceeds 4.5 a, the feedback signal is turned high and it remains so, until the input voltage is turned-off. p 1nf 18k v cc hv c gnd flag v bat 1 f 100nf e lgnd v in +5v bd 1k 1k 1k note: enable pin can be alternatively connected to lgnd.
application schematic VB525SP-e 14/19 doc id 18022 rev 2 4.3 overvoltage the VB525SP-e can withstand the following transients of the battery line: -100 v / 2 msec (r i =10 ) +100 v / 0.2 msec (r i =10 ) +50 v / 400 msec (r i =4.2 , with v in =3v)
VB525SP-e package information doc id 18022 rev 2 15/19 5 package information 5.1 ecopack ? packages in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. 5.2 powerso-10 mechanical data figure 9. powerso-10 package dimensions detail "a" plane seating l a1 f a1 h a d d1 = = = = e4 0.10 a c a b b detail "a" seating plane e2 10 1 eb he 0.25 p095a
package information VB525SP-e 16/19 doc id 18022 rev 2 table 6. powerso-10 mechanical data symbol millimeters min. typ. max. a 3.35 3.65 a (1) 1. muar only poa p013p. 3.4 3.6 a1 0.00 0.10 b 0.40 0.60 b (1) 0.37 0.53 c 0.35 0.55 c (1) 0.23 0.32 d 9.40 9.60 d1 (2) 2. resin protrusion not included (max value: 0.20 mm per side). 7.40 7.60 e (2) 9.30 9.50 e2 7.20 7.60 e2 (1) 7.30 7.50 e4 5.90 6.10 e4 (1) 5.90 6.30 e1.27 f 1.25 1.35 f (1) 1.20 1.40 h 13.80 14.40 h (1) 13.85 14.35 h0.50 l 1.20 1.80 l (1) 0.80 1.10 0o 8o (1) 2o 8o
VB525SP-e package information doc id 18022 rev 2 17/19 5.3 packing information figure 10. powerso-10 suggested pad layout and tube shipment (no suffix) figure 11. powerso-10 tape and reel shipment (suffix ?tr?) 6.30 10.8 - 11 14.6 - 14.9 9.5 1 2 3 4 5 1.27 0.67 - 0.73 0. 54 - 0.6 10 9 8 7 6 b a c c a b muar casablanca all dimensions are in mm. base q.ty bulk q.ty tube length ( 0.5) a b c ( 0.1) casablanca 50 1000 532 10.4 16.4 0.8 muar 50 1000 532 4.9 17.2 0.8 reel dimensions all dimensions are in mm. base q.ty 600 bulk q.ty 600 a (max) 330 b (min) 1.5 c ( 0.2) 13 f 20.2 g (+ 2 / -0) 24.4 n (min) 60 t (max) 30.4 tape dimensions according to electronic industries association (eia) standard 481 rev. a, feb. 1986 all dimensions are in mm. tape width w 24 tape hole spacing p0 ( 0.1) 4 component spacing p 24 hole diameter d ( 0.1/-0) 1.5 hole diameter d1 (min) 1.5 hole position f ( 0.05) 11.5 compartment depth k (max) 6.5 hole spacing p1 ( 0.1) 2 top cover tape end start no components no components components 500mm min 500mm min empty components pockets saled with cover tape. user direction of feed
revision history VB525SP-e 18/19 doc id 18022 rev 2 6 revision history table 7. document revision history date revision changes 27-sep-2010 1 initial release. 18-sep-2013 2 updated disclaimer
VB525SP-e doc id 18022 rev 2 19/19 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a particul ar purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. st products are not designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems with product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purchaser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for ? automotive, automotive safe ty or medical? industry domains according to st product design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2013 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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