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january 2012 doc id 022458 rev 1 1/23 AN4009 application note steval-ifp019v1: design with vni4140k-32 quad high-side smart power solid-state relay ics introduction the steval-ifp019v1 demonstration board has been developed to show the new vni4140k-32 device functionalities within industrial applications such as plcs (programmable logic controllers) which drive lamps, valves, relays, and similar loads. this tool allows the evaluation of the vni4140k-32 features, in particular all kinds of embedded self-protections, powe r-handling capabilities, operat ion and diagnos tic feedback, thermal behavior, and conformity to inherent iec standards. figure 1. steval-ifp019v1 a double-sided pcb allows the obtaining of the best trade-off between a routing solution and thermal management results. the main features of the demonstration board are: four output channels (4 x 1 a) four input channels four feedback channels for diagnostic purposes bi-directional opto-isolated interface for mcu safe connection ttl/cmos compatible signals for mcu direct connection leds to indicate output state compliance to iec61000-4-4, iec61000-4-5, and iec61000-4-2 10.5 v to 36 v dc power supply voltage range. www.st.com
contents AN4009 2/23 doc id 022458 rev 1 contents 1 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 vni4140k-32 quad high-side smart power solid-state relay ic description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 steval-ifp019v1 demonstration board descr iption . . . . . . . . . . . . . . 8 4.1 overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2 steval-ifp019v1 schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.3 steval-ifp019v1 connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.4 steval-ifp019v1 thermal management . . . . . . . . . . . . . . . . . . . . . . . . 11 4.5 emc immunity test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.5.1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.5.2 burst immunity test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.5.3 surge test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4.5.4 esd test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 appendix a bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 appendix b pcb layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 appendix c references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 AN4009 list of figures doc id 022458 rev 1 3/23 list of figures figure 1. steval-ifp019v1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 figure 2. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. steval-ifp019v1 top view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 4. steval-ifp019v1 bottom view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 5. steval-ifp019v1 schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 6. j1 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 figure 7. j5 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 figure 8. steval-ifp019v1 pcb copper heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 9. thermal map in steady-state condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 figure 10. thermal map in demagnetization condition (1 hz repetitive cycling on 48 w 1.2 h load) . 11 figure 11. steady-state thermal behavior 3d simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 12. repetitive demagnetization thermal behavior 3d simulation (1 hz repetitive cycling on 48 w 1.2 h load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 13. burst timing waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 figure 14. eft test set-up according to iec 61000-4-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 15. surge standard timing waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 figure 16. surge test set-up on supply voltage lines according to iec 61000-4-5 . . . . . . . . . . . . . . . 16 figure 17. esd test set-up according to iec 61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 figure 18. steval-ifp019v1 compone nt layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 19. steval-ifp019v1 copper top layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 20. steval-ifp019v1 copper bottom layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 electrical characteristics AN4009 4/23 doc id 022458 rev 1 1 electrical characteristics the electrical characteristics of the vni 4140k-32 demonstration board (steval-ifp019v1) are given in ta b l e 1 . table 1. steval-ifp019v1 electrical characteristics parameter value notes min. typ. max. operating conditions ambient operating temperature 85 c if the vni4140k-32 junction temperature exceeds 170 c, the device shuts down power supply vcc supply voltage 10.5 v 24 v 36 v vdd logic supply voltage 5 v supply current on vdd 250 a all channels in off state 2.4 ma 4.8 ma on state with v in = 5 v output stage output channel on current limitation 1 a 2.6 a ic internally limited v cc = 24 v; r load < 10 m maximum dc output current dv/dt (on) turn-on voltage slope 4 v/s i out = 0.5 a, resistive load dv/dt (off) turn-off voltage slope 4 v/s i out = 0.5 a, resistive load demagnetization protection output voltage on inductive turn-off v cc -41 v cc -45 v cc -52 i out = 0.5 a; l load >= 1 mh AN4009 safety precautions doc id 022458 rev 1 5/23 2 safety precautions the board must be used only by expert technicians. the copper areas around the vni4140k-32 device have a heatsink function, visible in the top layer layout view, refer to figure 8 . in case of short-circuit, current limiting or hard demagnetization, the steval- ifp019v1 board, or part of it, may reach a very high temperature with consequent dangers. no specific protections are implemented for reverse dc accidental connection. remember that an electrolytic capacitor is connected to the supply bus, therefore a reverse continuous dc voltage applied to it may produce a dangerous explosion. warning: st assumes no responsibility for any consequences which may result from the improper use of this tool. vni4140k-32 quad high-side smart power solid-state relay ic description AN4009 6/23 doc id 022458 rev 1 3 vni4140k-32 quad high-side smart power solid-state relay ic description the vni4140k-32 is a monolithic 4-channel driver featuring a very low supply current. the ic, which uses stmicroelectronics vipower? technology, is intended for driving loads with one side connected to ground. active channel current limitation, combined with thermal shutdown (independent for each channel), and automatic restart, protect the device against overload. the main features of the vni4140k-32 ic are: output current: 1 a per channel shorted load protections for each channel junction overtemperature protection case overtemperature protection for thermal independence of the channels thermal case shutdown and restart not simultaneous in each single channel protection against ground disconnection current limitation undervoltage shutdown open drain diagnostic outputs 3.3 v cmos/ttl compatible inputs fast demagnetization of inductive loads conforms to iec 61131-2. figure 2. block diagram active current limitation avoids that the system power supply drops in case of a shorted load. in overload condition, the channel turns off and back on automatically after the ic temperatures decrease below a threshold fixed by a temperature hysteresis so that junction ! - v 5 n d e r v o l t a g e $ e t e c t i o n # u r r e n , i m i t e r # l a m p 0 o w e r * u n c t i o n 4 e m p $ e t e c t i o n , o g i c 3 a m e s t r u c t u r e f o r a l l c h a n n e l s 6 c c c l a m p 6 c c ' . $ / u t p u t / u t p u t / u t p u t / u t p u t ) n p u t ) n p u t ) n p u t ) n p u t 3 t a t u s 3 t a t u s 3 t a t u s 3 t a t u s # a s e 4 e m p $ e t e c t i o n AN4009 vni4140k-32 quad high-side smart power solid-state relay ic description doc id 022458 rev 1 7/23 temperature is controlled. if this condition c auses the case temperature to reach the case temperature limit (t csd ), overloaded channels (i.e. the ones for which junction temperature has exceeded the junction protection threshold, t jsd , and has not fallen below the junction protection reset threshold, t jr ) are turned off. these channels restart, non-simultaneously, only when the case temperature decreases below the case protection reset threshold (t cr ). non-overloaded channels continue to operate normally. the open drain diagnostic outputs indicate related channel overtemperature conditions. steval-ifp019v1 demonstration board description AN4009 8/23 doc id 022458 rev 1 4 steval-ifp019v1 demonstration board description 4.1 overview the vni4140k-32 demonstration board is composed of two main sections: opto-isolated interface for input and status signals a four-channel self-protect power stage section with stmicroelectronics tr a n s i l ? diode protection the demonstration board consists of a double-sided fr4 printed circuit board with 35 m copper plating. the pcb dimensions are 52 mm x 68 mm. the top and bottom views are shown below. figure 3. steval-ifp019v1 top view figure 4. steval-ifp019v1 bottom view AN4009 steval-ifp019v1 demonstration board description doc id 022458 rev 1 9/23 4.2 steval-ifp019v1 schematic figure 5. steval-ifp019v1 schematic ! - v # n & |