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this is information on a product in full production. october 2012 doc id 13240 rev 8 1/30 1 vn5012ak-e single channel high side driver with analog current sense for automotive applications datasheet ? production data features general features ? inrush current active management by power limitation ? very low stand-by current ? 3.0 v cmos compatible input ? optimized electromagnetic emission ? very low electromagnetic susceptibility ? in compliance with the 2002/95/ec european directive diagnostic functions ? proportional load current sense ? high current sense precision for wide range currents ? current sense disable ? thermal shutdown indication ? very low current sense leakage protections ? undervoltage shutdown ? overvoltage clamp ? load current limitation ? self limiting of fast thermal transients ? protection against loss of ground and loss of v cc ? thermal shutdown ? reverse battery protection ? electrostatic discharge protection application all types of resistive, inductive and capacitive loads description the vn5012ak-e is a monolithic device made using stmicroelectronics vipower ? m0-5 technology. it is intended for driving resistive or inductive loads with one side connected to ground. active v cc pin voltage clamp protects the device against low energy spikes (see iso7637 transient compatibility table). this device integrates an analog current sense which delivers a current proportional to the load current (according to a known ratio) when cs_dis is driven low or left open. when cs_dis is driven high, the current sense pin is in a high impedance condition. output current limitation protects the device in overload condition. in case of long overload duration, the device limits the dissipated power to safe level up to thermal shutdown intervention. thermal shutdown with automatic restart allows the device to recover normal operation as soon as fault condition disappears. max supply voltage v cc 41 v operating voltage range v cc 4.5 to 36 v max on-state resistance (per ch.) r on 12 m current limitation (typ) i limh 65 a off-state supply current (typ) i s 2a (1) 1. typical value with all loads connected powersso-24 table 1. device summary package order codes tube tape and reel powersso-24 vn5012ak-e vn5012aktr-e www.st.com
contents vn5012ak-e 2/30 doc id 13240 rev 8 contents 1 block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.1 gnd protection network against reverse battery . . . . . . . . . . . . . . . . . . . 20 3.1.1 solution 1: resistor in the ground line (rgnd only) . . . . . . . . . . . . . . . . 20 3.1.2 solution 2: a diode (dgnd) in the ground line . . . . . . . . . . . . . . . . . . . 21 3.2 load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.3 mcu i/os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4 maximum demagnetization energy (vcc = 13.5v) . . . . . . . . . . . . . . . . . 22 4 package and pcb thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.1 powersso-24 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5 package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.1 ecopack ? packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.2 powersso-24 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . 26 5.3 powersso-24 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 vn5012ak-e list of tables doc id 13240 rev 8 3/30 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 3. suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 6 table 4. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 5. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 table 6. power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 table 7. switching (vcc = 13 v; tj = 25c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 8. logic input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 9. protections and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 10. current sense (8 v < v cc < 16 v). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 11. truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 12. electrical transient requirements (part 1/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 13. electrical transient requirements (part 2/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 14. electrical transient requirements (part 3/3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 15. thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 table 16. powersso-24 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 table 17. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 list of figures vn5012ak-e 4/30 doc id 13240 rev 8 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. configuration diagram (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. current and voltage conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 figure 4. current sense delay characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 5. delay response time between rising edge of output current and rising edge of current sense (cs enabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 6. i out /i sense vs i out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 7. maximum current sense ratio drift vs load current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 8. switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 9. output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 10. waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 figure 11. off-state output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 12. high level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 13. input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 14. input high level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 15. input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 16. input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 17. on-state resistance vs t case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 18. on-state resistance vs v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 19. undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 20. i limh vs t case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 21. turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 22. turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 23. cs_dis high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 24. cs_dis clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 25. cs_dis low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 26. application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 27. maximum turn-off current versus inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 28. powersso-24 pc board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 29. rthj-amb vs pcb copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 23 figure 30. rthj-amb vs pcb copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 24 figure 31. thermal fitting model of a single channel hsd in powersso-24 . . . . . . . . . . . . . . . . . . . 24 figure 32. powersso-24 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 figure 33. powersso-24 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 figure 34. powersso-24 tape and reel shipment (suffix ?tr?) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 vn5012ak-e block diagram and pin description doc id 13240 rev 8 5/30 1 block diagram and pin description figure 1. block diagram table 2. pin function name function v cc battery connection. output power output. gnd ground connection. must be reverse battery protected by an external diode/resistor network. input voltage controlled input pin with hysteresis, cmos compatible. controls output switch state. current sense 1,2 analog current sense pin, delivers a current proportional to the load current. cs_dis active high cmos compatible pin, to disable the current sense pin. logic undervoltage overtemp. i lim pwclamp k i out gnd input output current sense driver v cc clamp v dslim cs_dis pwr lim v cc block diagram and pin description vn5012ak-e 6/30 doc id 13240 rev 8 figure 2. configuration diagram (top view) table 3. suggested connections for unused and not connected pins connection / pin current sense n.c. output input cs_dis floating n.r. (1) 1. not recommended. xx x x to ground through 1 k resistor xn.r. through 10 k resistor through 10 k resistor 1 2 3 4 5 6 nc nc output output input nc gnd v cc 24 23 22 21 20 19 nc nc output nc tab = v cc 7 8 9 10 11 12 output output nc nc nc v cc nc current sense 18 17 16 15 14 13 cs_dis nc nc output vn5012ak-e electrical specifications doc id 13240 rev 8 7/30 2 electrical specifications figure 3. current and voltage conventions note: v f = v out - v cc during reverse battery condition. 2.1 absolute maximum ratings stressing the device above the rating listed in ta b l e 4 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 implied. exposure to the conditions in table below for extended periods may affect device reliability. i s i gnd v cc v cc v sense output i out current sense i sense input i in v in v out gnd cs_dis i csd v csd v f table 4. absolute maximum ratings symbol parameter value unit v cc dc supply voltage 41 v -v cc reverse dc supply voltage 0.3 v -i gnd dc reverse ground pin current 200 ma i out dc output current internally limited a -i out reverse dc output current -30 a i in dc input current -1 to 10 ma i csd dc current sense disable input current -1 to 10 ma -i csense dc reverse cs pin current 200 ma v csense current sense maximum voltage v cc -41 +v cc v v electrical specifications vn5012ak-e 8/30 doc id 13240 rev 8 2.2 thermal data 2.3 electrical characteristics 8v electrical specifications vn5012ak-e 10/30 doc id 13240 rev 8 v csd(hyst) cs_dis hysteresis voltage 0.25 v v cscl cs_dis clamp voltage i csd =1ma 5.5 7 v i csd =-1ma -0.7 v table 9. protections and diagnostics (1) 1. to ensure long term reliability under heavy overload or short circuit conditions , protection and related diagnostic signals must be used together with a proper soft ware strategy. if the device is subjected to abnormal conditions, this software must limit the duration and number of activation cycles. symbol parameter test conditions min. typ. max. unit i limh dc short circuit current v cc = 13 v 45 65 90 a 5v vn5012ak-e electrical specifications doc id 13240 rev 8 13/30 figure 6. i out /i sense vs i out figure 7. maximum current sense ratio drift vs load current note: parameter guaranteed by design; it is not tested. 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