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scale driver 2SD315AI data sheet igbt-driver.com page 1 2SD315AI dual scale driver core for igbts and power mosfets description the scale drivers from concept are based on a chip set that was developed specifically for the reliable driving and safe operation of igbts and power mosfets . the name ?scale? is an acronym for the most outstanding properties of the scale series of drivers: scale = s caleable, c ompact, a ll purpose, l ow cost and e asy to use. the scale driver is a winning project of the competition organized by ?technology center switzerland 1998?. and abb switzerland ag honored the development of the scale driver by distinguishing it as the ?best power electronics project in 1998?. product highlights applications [ suitable for 1200v and 1700v igbts [ inverters [ short circuit and overcurrent protection [ motor drive technology [ extremely reliable, long service life [ traction [ high gate current of 15a [ railroad power supplies [ electrical isolation of 4000v ac [ converters [ electrically isolated status acknowledgement [ power engineering [ monitoring of power su pply and self-monitoring [ switched-mode power supplies [ switching frequency dc to >100khz [ radiology and laser technology [ duty cycle: 0... 100% [ dc/dc converter [ high dv/dt immunity, guaranteed >100,000v/s [ research [ complete with dc/dc converter [ rf generators and converters
scale driver 2SD315AI data sheet page 2 intelligent power electronics block diagram viso1 vdc gnd rg rg igd igd ldi viso1 viso2 viso2 electronic level power- isolation power level semiconductor driver on interface on pwm oscillator electrical scale driver module (external) rth rth vdd gnd fig. 1 block diagram of the 2SD315AI
scale driver 2SD315AI data sheet igbt-driver.com page 3 pin designation pin des. function 1 vdd +15v for electronic input side 2 vdd +15v for electronic input side 3 so1 status output channel 1 4 vl logic level/reset 5 rc1 rc network dead-time channel 1 6 inb input b 7 rc2 rc network dead-time channel 2 8 mod mode input 9 so2 status output channel 2 10 ina input a 11 gnd gnd for electronic input side 12 gnd gnd for electronic input side 13 vdc +15v for dc/dc converter 14 vdc +15v for dc/dc converter 15 vdc +15v for dc/dc converter 16 vdc +15v for dc/dc converter 17 vdc +15v for dc/dc converter 18 gnd(dc) ground dc/dc converter 19 gnd(dc) ground dc/dc converter 20 gnd(dc) ground dc/dc converter 21 gnd(dc) ground dc/dc converter 22 gnd(dc) ground dc/dc converter pin des. function 44 g1 gate channel 1 43 g1 gate channel 1 42 com1 virtual common channel 1 41 com1 virtual common channel 1 40 viso1 blocking capacitor channel 1 39 e1 emitter channel 1 38 e1 emitter channel 1 37 rth1 reference resistor channel 1 36 c1 collector sense channel 1 35 ls1 local status channel 1 34 free 33 free 32 g2 gate channel 2 31 g2 gate channel 2 30 com2 virtual common channel 2 29 com2 virtual common channel 2 28 viso2 blocking capacitor channel 2 27 e2 emitter channel 2 26 e2 emitter channel 2 25 rth2 reference resistor channel 2 24 c2 collector sense channel 2 23 ls2 local status channel 2 legend: pins with the designation ?free? are not physically present. pcb layout / mechanical dimensions details of the circuit board layout grid of the aspect drawing on page 4 below: 1.27mm (50mil) recommended diameter of solder pad: ? 1.6mm recommended diameter of drill holes: ? 1.0mm
scale driver 2SD315AI data sheet page 4 intelligent power electronics mechanical dimensions fig 2 front view (top) / layout overview componen t side (bottom) 2SD315AI
scale driver 2SD315AI data sheet igbt-driver.com page 5 fig. 3 side view (top) / mech anical fixing (bottom) 2SD315AI height x: typ. 22mm
scale driver 2SD315AI data sheet page 6 intelligent power electronics mechanical fixing the 2SD315AI driver has two holes each 3. 2mm in diameter. they allow additional fixing of the driver for applic ations requiring very high resistance to shaking/vibration (railways, traction systems, electrically-d riven vehicles, etc.). see fig. 3 (bottom). absolute maximum ratings parameter test conditions min max unit supply voltage vdc 0 16 vdc supply voltage vdd 0 16 vdc logic input voltage to gnd 0 vdd vdc gate peak current i out gx to ex -18 +18 a output power dc/dc converter to tal for both channels 6 w operating voltage continuous (see note 8) 1200 vdc test voltage (50hz/1min) inputs to outputs (see note 11) 4000 v ac (eff) operating temperature (see note 10) -40 +85 c storage temperature -40 +90 c all data refer to +25c and vdd = vdc = 15v unless otherwise specified electrical characteristics power supply test conditions min typ max unit nominal supply voltage vdc to gnd (see note 1) 15 vdc supply current idc without load 30 ma max. supply current idc (see note 2) 470 ma output power dc/dc converter (see note 3) 6 w efficiency internal dc/dc converter 85 % nominal supply voltage vdd to gnd 15 vdc supply current idd without load 12 ma supply current idd at 25khz switching frequency 15 ma
scale driver 2SD315AI data sheet igbt-driver.com page 7 electrical characteristics (continuation) power supply monitoring test conditions min typ max unit turn-on threshold v th (see note 4) 11.5 vdc hysteresis on/off (see note 4) 0.7 vdc logic inputs test conditions min typ max unit input voltage all inputs (see note 5) 0 vdd vdc timing characteristics test conditions min typ max unit delay time input to output turn-on t pd(on) 300 ns turn-off t pd(off) 350 ns blocking time after failure (see note 12) 1 s outputs test conditions min typ max unit output current i g gx to ex (see note 6) -15 +15 a output rise time t r(out) gx to ex (see note 7) 100/160 ns output fall time t f(out) gx to ex (see note 7) 80/130 ns output current sox 1.5 ma output voltage rating sox sox to gnd vdd v output current lsx 5 ma vce-monitoring test cond itions min typ max unit inputs cx to ex 0 vdd vdc electrical isolation test conditions min typ max unit operating voltage continuous (see note 8) 1200 vdc test voltage (50hz/1min) (see note 11) 4000 v ac (eff) partial discharge extinction volt. iec270 >1700 v ac (pk) creep path input-output 20 mm creep path output-output 20 mm maximum ' v/ ' t at ' v =1000v (see note 9) 100 kv/ p s all data refer to +25c and vdd = vdc = 15v unless otherwise specified
scale driver 2SD315AI data sheet page 8 intelligent power electronics operating conditions operating conditions test conditions min max unit operating temperature (see note 10) -40 +85 c storage temperature -40 +90 c footnotes to the key data 1) the drivers have a zener diode on each channel for over-voltage protection. when the feed voltage exceeds 16v, this protection can be subject to thermal overload. 2) if the specified power consumption is exceeded, th is indicates an overload of the dc/dc converter. it should be noted that these dc/dc conv erters are not protected against overload. 3) this should be considered as a recommended value. please consult th e section: ?output power and self-heating?. 4) under-voltage monitoring for protecting the powe r semiconductors. the voltage refers to the local supply voltage of each individual drive channel. however, this corresponds approximately to the voltage at vdc with respect to gnd. 5) the input levels must never exceed the limits of the supply voltage (i.e. between gnd and vdd), otherwise latch-up of the integrated circuits ldi 00i can occur. particular care must be taken when driving via cables or longer leads. 6) the gate current must be limited to its maximum value by a gate resistor. 7) first value: at a load of 39nf in series with 5.6 ? /second value: at a load of 250nf in series with 1.8 ? 8) maximum continuous or repeatedly-applied dc voltage between all inputs and all outputs. 9) this specification guarantees that the drive info rmation will be transferred reliably even at a high dc-link voltage and fastest switching operations. 10) the application-specific self-heating of the drivers ? specially at high load ? must be taken into account. 11) the test voltage of 4000 vac(rms)/50hz may be a pplied only once during one minute. it should be noted that with this (strictly speaking obsolete) test method, some (minor) damage occurs to the isolation layers due to the partia l discharge. consequently, this te st is not performed at concept as a series test. in the case of repeated isolat ion tests (e.g. module test, equipment test, system test) the subsequent tests should be performed wi th a lower test voltage: the test voltage is reduced by 400v for each additional test. the mo re modern if more elaborate partial-discharge measurement is better suited than such test meth ods as it is almost entirely non-destructive. 12) the typical blocking time after an error is 1 second. if required, versions with other blocking times may also be supplied.
scale driver 2SD315AI data sheet igbt-driver.com page 9 application hints important information this data sheet contains only product- specific data. all data that apply to the whole type series of scale driver s is given in the document entitled: ?description and application manual for scale drivers?. in particular, this manual contains a detailed descript ion of the concept of the scale drivers, a description of the function of all terminal pins as well as other important application hints. overview and application the scale driver 2SD315AI is a two channel driver for power mosf ets and igbts. the 2SD315AI combines compact mechanical dime nsions and a simple electrical interface with very high output currents, high drive power and a special high isolation. this driver can thus be used in almost all conceivable applications, es pecially for parallel circuits, high-power modules and modules with reve rse voltages up to 1700v. when used as a half-bridge driver, the 2SD315AI can directly generate any dead times that may be required. output power and self-heating the specified output po wer of the driver totals 6w (3w per channel). in the case of a drive power of 6w, the typical input power of the driver is about 7w; the losses due to the driver total about 1w. because concep t cannot predict how the drivers will be incorporated in the user?s application, no binding recommended va lue for self-heating and thus for the maximum useful output power at high ambient temperatures can be made. it is consequently recommended to check the self-heati ng of the system, especially when it is used at higher temperatures. for the calculation of the exac t output power, reference shou ld be made to application note an-9701 ?igbt drivers correctly calculated? on www.igbt-driver.com/go/app-note .
scale driver 2SD315AI data sheet page 10 intelligent power electronics collector sense and dimensioning of rth the 2SD315AI dual driver has a collector-sen se circuit to protect the power semicon- ductors. it is shown in fig. 4 its basic operating mode can be obtained fr om the brochure entitled: ?description and application manual for scale drivers?. to correspond more effectivel y to the turn-on characterist ic of the igbts, the scale drivers do not use a static reference voltage to compare the voltage at the collector. instead, the reference is used as shown in fig. 5. in order to ensure that the 2SD315AI can be applied as universally as possible, the components ca (response time capacitor) and rm (attenuation resistor) are not integrated in the driver as shown in fig. 4, but must be connect ed externally. whereas ca can be matched to the specific ap plication, a standard value of 180 ? is recommended for rm. the ground terminal of ca should be connected to the comx pin. rm 180r ca cx rthx gx ex rthx rgx dm (2 x 1n4007) scale driver 2sd315a 150ua 1,4ma overcurrent measuring +vdd +vdd comx fig. 4 collector-sen se circuit principle
scale driver 2SD315AI data sheet igbt-driver.com page 11 notes on table 1 the values for ?vth1? and ?vth2? are listed in table 1 as a function of the reference resistance rth. the value in the ?v th1? column cor- responds to the voltage threshold after the response time has elapsed. the value in the ?v th2? column cor- responds to the voltage which is set up statically across the resistor rth. this static value is typically reached after between 10 and 15 s. the value in the ?v ce (off)? column corresponds to the collector-emitter voltage value at which the protection function is activated when the external circuit is used as shown in fig. 4 with one or two dm diodes of type 1n4007 connected in series. a value of 1n5 is used for the response time capacitor ca. if this capacitor is rated higher or lower, the response time changes in proportion to the change in capacitance, whereas the thresholds vth1 and vth2 remain practically unchanged (they are specified by rth). value rth reaction time vth1 vth2 v ce (off) 22k ? 4.9 p s ? 4.8v ? 3.2v 2.35v (1 diode) 27k ? 5.7 p s ? 5.6v ? 3.9v 3.05v (1 diode) 33k ? 6.8 p s ? 6.5v ? 4.7v 3.25v (2 diodes) 39k ? 7.6 p s ? 7.3v ? 5.6v 4.15v (2 diodes) 47k ? 9 p s ? 8.4v ? 6.8v 5.35v (2 diodes) table 1 reference resistor, reaction ti me and turn-off threshold with ca = 1n5 +vdc 0v vth response time detail view detail 0v vce vth1 vce vth2 fig. 5 collector-sense voltage curve
scale driver 2SD315AI data sheet page 12 intelligent power electronics double or multiple pins due to the high output currents, several pins are present in duplicate or as multiples. it is recommended to conn ect these in parallel on the layout so that the voltage drop across the lead frames (contact pins) is minimized. special terminal pins the 2SD315AI half-bridge driver is optimi zed for universal use and high driver performance and thus contains more termin al pins than the compact scale drivers. these pins will be desc ribed below: visox and comx pins: external support capacitor note: the ?x? in viso x and comx stands fo r the channel number. like the compact scale drivers, the 2sd315a i also has blocking capacitors on the secondary side of the dc/dc co nverter for each drive channel. igbts with gate charges up to 3 p c (corresponding typically to about a 1200v/300a module) and gate currents up to about 10a can be driven without exte rnal blocking capacitors. at higher gate charges or gate currents, external blocking capacitors are required between visox and comx. these capacitors should be rated at between 47 and 120 p f (but no more than 220 p f) and a dielectri c strength of ? 20v. it is important that the capacitors are suitable for switched-mode power supply appl ications (low inductance and high current handling capacity). they must be connected as close as possible to the driver?s terminal pins with minimu m inductance. the anode of the capacitor is connected to visox, its cathod e to comx. the comx pin is always present in duplicate. vdc and gnd pins: supply for dc/dc converter it is recommended to connect a blocking capacitor of appr oximately 220f to the driver input. this capacitor should also be of the switched-mode power supply type. pin lsx: local status note: the ?x? in lsx stands for the channel number. the status of the igd 001 for ea ch channel is available at th is output. it is an open- collector output to which approximately 5ma may be applied. a led can be connected here, for example, as shown in fig. 6. the led lights up in normal operation
scale driver 2SD315AI data sheet igbt-driver.com page 13 (everything ok) and goes out when the driver detects an undervoltage or during the blocking time. 3k3 scale driver visox lsx okay led isolated +16v ds comx fig. 6 status display with led at pin lsx attention: the schottky diode ds should not be omitted if the local status outputs are used. if the local status outputs are not used, ls1 should be connected to com1 and ls2 to com2 in order to increase the no ise immunity of the driver. configuration within the power section the drivers should be located as closely as possible to the power transistors. the connecting leads to the transist ors should be as short as possible and as low inductance as possible, i.e. they can be up to 3cm to 10cm long depending on the gate current and switching speed.
scale driver 2SD315AI data sheet page 14 intelligent power electronics if you need any help, simply call our technical support concept provides expert help with your questions and problems: www.igbt-driver.com/go/support quite special: customized scale drivers if you need a power mosfet or igbt driver th at is not included in the delivery range, don?t hesitate to contact concept or your concept sales partner. concept engineers have more than 20 ye ars experience in the development and manufacture of intelligent drivers for po wer mosfets and igbts and have already implemented a large number of customized solutions. important notice the data contained in this product data sh eet is intended exclusively for technically trained staff. handling all high-voltage equi pment involves risk to life. strict compliance with the respective safety regulations is mandatory! any handling of electronic devi ces is subject to the genera l specifications for protecting electrostatic-sensitive devices according to international st andard iec 747-1, chapter ix or european standard en 100015 (i.e. the wo rkplace, tools, etc. must comply with these standards). otherwise, this product may be damaged. legal disclaimer this data sheet specifies devices but cannot promise to deliver any specific characteristics. no warranty or guarantee is given ? either expre ssly or implicitly ? regarding delivery, perf ormance or suitability. ct-concept technologie ag reserves the righ t to make modifications to its technical data and product specifications at any time without prior notice. the general terms and conditions of delivery of ct-c oncept technologie ag apply.
scale driver 2SD315AI data sheet igbt-driver.com page 15 ordering information dual scale driver with 15a gate cu rrent / 0/+15v or 15v gate voltage 2SD315AI information about other products for other drivers, product docume ntation, and app lication support direct link: please click: www.igbt-driver.com manufacturer ct-concept technologie ag intelligent power electronics renferstrasse 15 ch-2504 biel-bienne switzerland tel. +41 - 32 - 344 47 47 fax +41 - 32 - 344 47 40 e-mail info@igbt-driver.com internet www.igbt-driver.com ? copyright 1998?2009 by ct-concept technologie ag - switzerland. all rights reserved. we reserve the right to make any technical modific ations without prior notice. version from 2009-09-15

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