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Datasheet File OCR Text: |
this is information on a product in full production. september 2013 doc id 022473 rev 6 1/37 1 vnd5e050aso-e double channel high-side driver with analog current sense for automotive applications datasheet ? production data features general ? inrush current active management by power limitation ? very low standby current ? 3.0 v cmos compatible inputs ? optimized electromagnetic emissions ? very low electromagnetic susceptibility ? compliant with european directive 2002/95/ec ? very low current sense leakage ? aec-q100 qualified diagnostic functions ? proportional load current sense ? high current sense precision for wide currents range ? current sense disable ? off-state open-load detection ? output short to v cc detection ? overload and short to ground (power limitation) indication ? thermal shutdown indication protections ? undervoltage shutdown ? overvoltage clamp ? load current limitation ? self limiting of fast thermal transients ? protection against loss of ground and loss of v cc ? overtemperature shutdown with auto restart (thermal shutdown) ? reverse battery protected ? electrostatic discharge protection applications all types of resistive, inductive and capacitive loads suitable as led driver description the vnd5e050aso-e is a double channel high- side driver manufactured using st proprietary vipower ? m0-5 technology and housed in so-16l package. the device is designed to drive 12 v automotive grounded loads, and to provide protection and diagnostics. it also implements a 3 v and 5 v cmos-compatible interface for the use with any microcontroller. the device integrates advanced protective functions such as load current limitation, inrush and overload active management by power limitation, overtemperature shut-off with auto-restart and overvoltage active clamp. a dedicated analog current sense pin is associated with every output channel providing enhanced diagnostic functions including fast detection of overload and short-circuit to ground through power limitation indication, overtemperature indication, short-circuit to v cc diagnosis and on- state and off-state open-load detection. the current sensing and diagnostic feedback of the whole device can be disabled by pulling the cs_dis pin high to share the external sense resistor with similar devices. max transient supply voltage v cc 41 v operating voltage range v cc 4.5 to 28 v max on-state resistance (per ch.) r on 50 m current limitation (typ) i limh 27 a off-state supply current i s 2 a (1) 1. typical value with all loads connected. ( " 1 ( $ ' 5 so-16l www.st.com
contents vnd5e050aso-e 2/37 doc id 022473 rev 6 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 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.5 electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.1 gnd protection network against reverse battery . . . . . . . . . . . . . . . . . . . 24 3.1.1 solution 1: resistor in the ground line (rgnd only) . . . . . . . . . . . . . . . . 24 3.1.2 solution 2: diode (dgnd) in the ground line . . . . . . . . . . . . . . . . . . . . . 25 3.2 load dump protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.3 mcu i/os protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.4 current sense and diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.4.1 short to vcc and off-state open-load detection . . . . . . . . . . . . . . . . . . 26 3.5 maximum demagnetization energy (vcc = 13.5v) . . . . . . . . . . . . . . . . . 28 4 package and pcb thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.1 so-16l thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5.1 ecopack ? packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5.2 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 5.3 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 6 order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 vnd5e050aso-e list of tables doc id 022473 rev 6 3/37 list of tables table 1. pin function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 2. suggested connections for unused and not connected pins . . . . . . . . . . . . . . . . . . . . . . . . 6 table 3. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 4. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 table 5. power section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 6. switching (vcc = 13 v; tj = 25c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 7. logic inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 8. protections and diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 9. current sense (8 v < v cc < 18 v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 table 10. open load detection (8 v < v cc < 18 v). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 11. truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 12. electrical transient requirements (part 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 13. electrical transient requirements (part 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 14. electrical transient requirements (part 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 15. thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 table 16. so-16l mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 table 17. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 table 18. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 list of figures vnd5e050aso-e 4/37 doc id 022473 rev 6 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 5. open-load off-state delay timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 6. switching characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 7. delay response time between rising edge of output current and rising edge of current sense (cs enabled). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 8. output voltage drop limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 9. i out /i sense vs i out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 figure 10. maximum current sense ratio drift vs load current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 figure 11. normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 12. overload or short to gnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 13. intermittent overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 14. off-state open-load with external circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 15. short to v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 16. t j evolution in overload or short to gnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 17. off-state output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 18. high level input current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 19. input clamp voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 20. input low level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 21. input high level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 22. input hysteresis voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 figure 23. on-state resistance vs tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 24. on-state resistance vs vcc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 25. undervoltage shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 26. turn-on voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 27. ilimh vs tcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 28. turn-off voltage slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 figure 29. cs_dis high level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 30. cs_dis clamp voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 31. cs_dis low level voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 figure 32. application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 figure 33. current sense and diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 figure 34. maximum turn-off current versus inductance (for each channel) . . . . . . . . . . . . . . . . . . . . 28 figure 35. so-16l pc board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 36. rthj-amb vs pcb copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 29 figure 37. so-16l thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . . . . . . 30 figure 38. thermal fitting model of a single channel hsd in so-16l . . . . . . . . . . . . . . . . . . . . . . . . . 30 figure 39. so-16l package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 figure 40. so-16l tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 figure 41. so-16l tape and reel shipment (suffix ?tr?) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 vnd5e050aso-e block diagram and pin description doc id 022473 rev 6 5/37 1 block diagram and pin description figure 1. block diagram table 1. pin function name function v cc battery connection. output 1,2 power output. gnd ground connection. must be reverse battery protected by an external diode/resistor network. input 1,2 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. v cc ch 1 control & diagnostic 1 logic driver v on limitation current limitation power clamp off state open load over temp. undervoltage v senseh current sense ch 2 overload protection (active power limitation) in1 in2 cs1 cs2 cs_ dis gnd out2 out1 signal clamp control & diagnostic channels 2 block diagram and pin description vnd5e050aso-e 6/37 doc id 022473 rev 6 figure 2. configuration diagram (top view) table 2. suggested connections for unused and not connected pins connection / pin current sense n.c. output input cs_dis floating not allowed x x x x to ground through 1 k resistor x through 22 k resistor through 10 k resistor through 10 k resistor 9 f f 9 f f 9 f f 9 f f 2 8 7 3 8 7 2 8 7 3 8 7 2 8 7 3 8 7 2 8 7 3 8 7 2 8 7 3 8 7 2 8 7 3 8 7 * 1 ' , 1 3 8 7 , 1 3 8 7 & |