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www.irf.com ? 2008 international rectifier 1 january 16, 2009 datasheet no. - pd97376 irs21856s high(dual mode) and low side driver features ? high side programmable ramp gate drive ? high side generic gate driver integrated using the same high side output pin ? low side generic gate driver ? under voltage lockout for vcc & vbs ? 5v input logic compatible ? tolerant to negative transient voltage on vs ? shoot through prevention ? rohs compliant product summary topology pdp v offset 600 v ho1 sr+ 4.5v/us i o+ & i o- (typical) 0.5a & 0.5a t on & t off (typical) 160ns & 160ns package options 14-lead soic (narrow body )
irs21856s www.irf.com ? 2008 international rectifier 2 table of contents page description 3 simplified block diagram 4 typical application diagram 5 qualification information 7 absolute maximum ratings 8 recommended operating conditions 8 static electrical characteristics 9 dv / linear (stepwise) mode 10 dynamic electrical characteristics 10 timing diagram and logic truth table 11 input/output pin equivalent circuit diagram 16 lead definitions 17 lead assignments 17 package details 18 tape and reel details 19 part marking information 20 ordering information 21
irs21856s www.irf.com ? 2008 international rectifier 3 description the irs21856 is high voltage and programmable ramp slope control gate driver for mosfet and igbt with single high side dual mode driver and low side driv er. proprietary hvic and latch immune cmos technologies enable ruggedized monolithic construction. the logic input is compatible with 5v standard cmos or lsttl output. the output dr iver features a programmable slope control by external r/c and input signal. the floating channels can be used to drive an n- channel power mosfet or igbt in the high side configuration, which operates up to 600 volts above the com ground.
irs21856s www.irf.com ? 2008 international rectifier 4 simplified block diagram uvlo 5v regulator logic & pulse generator uvlo pulse filter 10v regulator conditioning & opamp driving reference generating r r s vb ho1 vse vref vs dv res lo3 lin3 hin2 hin1 com vcc
irs21856s www.irf.com ? 2008 international rectifier 5 typical connection diagrams a) linear ramp driver?s connection diagram b) stepwise linear ramp driver?s connection diagram
irs21856s www.irf.com ? 2008 international rectifier 6 c) exponential ramp driver?s connection diagram irs21856 son14 vb ho1 vse res vs dv vref vcc com hin1 hin2 lin3 nc lo3 optional c c c ref r res 25v max v sus panel r ref
irs21856s www.irf.com ? 2008 international rectifier 7 qualification information ? industrial ?? qualification level comments: this family of ics has passed jedec?s industrial qualification. ir ?s consumer qualification level is granted by extensi on of the higher industrial level. moisture sensitivity level soic14n msl2 ??? 260c (per ipc/jedec j-std-020) machine model class a (per jedec standard jesd22-a115) esd human body model class 2 (per eia/jedec standard eia/jesd22-a114) ic latch-up test class i , level a (per jesd78) rohs compliant yes ? qualification standards can be found at international rectifier?s web site http://www.irf.com/ ?? higher qualification ratings may be available should t he user have such requirements. please contact your international rectifier sales r epresentative for further information. ?? ? higher msl ratings may be available for the specific package types listed here. please contact your international rectifier sales repr esentative for further information.
irs21856s www.irf.com ? 2008 international rectifier 8 absolute maximum ratings absolute maximum ratings indicate sustained limit s beyond which damage to the device may occur. all voltage parameters are absolute voltages referenced to com . symbol definition min max units v cc low side supply voltage -0.3 25 v v in logic input voltage (hin1, hin2, lin3) com-0.3 vcc +0.3 v v lo low side gate drive output voltage com-0.3 vcc +0.3 v v dv , v vref high side inputs voltage vs-0.3 vb+0.3 v v vse , v res high side inputs voltage vs-0.3 vb+0.3 v v b high side floating well supply voltage -0.3 625 v v s high side floating well supply return voltage vb-25 vb+0.3 v v ho1 floating gate drive output voltage vs-0.3 vb+0.3 v dv s /dt allowable vs offset supply trans ient relative to com - 50 v/ns p d package power dissipation @ ta<=+25oc - 1.0 w r ja thermal resistance, junction to ambient - 120 oc/w t j junction temperature -55 150 oc t s storage temperature -55 150 oc t l lead temperature (soldering, 10 seconds) - 300 oc recommended operating conditions for proper operation, the device should be used within the recommended conditions. all voltage parameters are absolute voltages referenced to com . the offset rating are tested with supplies of (vcc-com) = (vb- vs)=15v. symbol definition min max units v cc low side supply voltage 10 20 v v in hin1, hin2, lin3 input voltage com v cc v v lo3 low side gate drive output voltage com v cc v v b high side floating well supply voltage v s +10 v s +20 v v res res input voltage v s v b v v dv dv input voltage v s v b v v vref, vse vref and vse input voltage v s v b -3 v v s high side floating well supply offset voltage note2 ?? 600 v v ho1 floating gate drive output voltage v s v b v t a ambient temperature -40 125 oc ? v s and v b voltages will be tolerant to short negative transient spikes. these will be defined and specified in the future. ?? logic operation for vs of -5 to 600v. logic state held for vs of -5v to ?v bs . (please refer to design tip dt97-3 for more details).
irs21856s www.irf.com ? 2008 international rectifier 9 static electrical characteristics (vcc-com) = (vb-vs)=15v. t a = 25oc. the v in , v in th and i in parameters are referenced to com. the v o and i o parameters are referenced to respective vs, com and are applicable to the respective output leads ho1, lo3. the v ccuv parameters are referenced to com. the v bsuv parameters are referenced to v s . symbol definition min typ max units test conditions v ccuv + v cc supply undervoltage positive going threshold 8.1 9.0 9.9 v ccuv - v cc supply undervoltage negative going threshold 7.5 8.3 9.1 v bsuv+ v bs supply undervoltage positive going threshold 8.1 9.0 9.9 v bsuv- v bs supply undervoltage negative going threshold 7.5 8.3 9.1 v i lk high side floating well offset supply leakage current --- --- 50 a v b = v s = 600v --- 4.7 8.5 ma in1, 2 = 5v, res=130kohm i qbs quiescent vbs supply current --- 800 1400 in1, 2 = 0v, res=130kohm i qcc quiescent vcc supply current --- 120 250 a in1,2,3 = 0v or 5v v ih logic ?1? input voltage 3.5 --- --- v il logic ?0? input voltage --- --- 0.8 v i in + logic ?1? input bias current --- 5 --- v in =5v i in - logic ?0? input bias current --- 0 --- a v in =0v io+_ ho1,lo3 output high short circuit pulsed current --- 0.5 --- v o =15v,v in =5v, pw<=10us io-_ ho1,lo3 output low short circuit pulsed current --- 0.5 --- a v o =0v,v in =0v, pw<=10us v ol _ ho1, lo3 low level output voltage --- 35 150 mv io=2ma v oh _ ho1, lo3 high level output voltage, vbias-vo --- 15 80 mv io=2ma dv exp+ positive dv input threshold for exponential ramp --- 9.5 --- v c ref =1nf, v se open r res =130k
irs21856s www.irf.com ? 2008 international rectifier 10 dv / linear (stepwise) mode symbol definition min typ max units test conditions 0.4 0.5 0.6 dv=500mv, c ref =1nf, v se open r res =130k, vref, hold dv reference voltage 2.82 3 3.18 v dv=3v, c ref =1nf, v se open r res =130k, dynamic electrical characteristics (vcc-com)= (vb-vs)=15v. t a = 25oc. c l = 1000pf unless otherwise specif ied. all parameters are reference to com. symbol definition min typ max units test conditions internal operational amplifier characteristics t ref_ln_ramp linear ramp reference 10% to 90% 110 170 230 s c ref =1nf, v se open, r res =130k, v dv =vs=com gm ota transconductance --- 12 --- ms cl_lo=1nf, v dv =v b, r res =130k, dc bias 5v g open loop open loop gain 45 60 --- db cc =1nf, v dv =v b, r res =130k bw ss small signal bandwidth --- 3.5 --- mhz cc =1nf v dv =v b, r res =130k v os input offset voltage --- 10 --- mv v dv =v b, r res =130k ho1 sr+ output positive slew rate --- 4.5 --- v/s cl_ho1=1nf, v dv =v b, r res =130k cmrr common mode rejection ratio 55 65 --- db v dv =v b, r res =130k psrr power supply rejection ratio 55 65 --- db v dv =v b, r res =130k propagation delay characteristics t on turn-on delay (ho1, lo3) --- 150 250 t off turn-off delay (ho1, lo3) --- 160 260 t r turn-on rise from 10% to 90% --- 30 70 t f turn-off fall from 90% to 10% --- 20 70 mt delay matching, ho1 & lo3 turn- on/off 50 ns gate drive mode c l =1nf
irs21856s www.irf.com ? 2008 international rectifier 11 figure 1a1 input/output timing diagram: linear ramp figure 1a2 input/output timing diagram: linear ramp with voltage difference
irs21856s www.irf.com ? 2008 international rectifier 12 figure 1b input/output timing diagram: stepwise linear ramp figure 1c input/output timing diagram: exponential ramp
irs21856s www.irf.com ? 2008 international rectifier 13 hin1 hin2 ho1 vref vse dv=vs lin3 lo3 figure 1d input/output timing diagram : ho1/lo3 outputs logic truth table hin1 hin2 lin3 lo3 ota of ho1 gate driver of ho1 0 0 0 0 high impedance (hiz) 0 0 0 1 1 high impedance (hiz) 0 0 1 0 0 high impedance (hiz) 1 0 1 1 0 high impedance (hiz) 0 1 1 0 0 linear/exp ramp depend on dv pin high impedance (hiz) 1 1 1 0 high impedance (hiz) 0 1 step(0/1) 0 0 stepwise linear if dv pin is vs high impedance (hiz) 1 step(0/1) 1 0 high impedance (hiz) 0
irs21856s www.irf.com ? 2008 international rectifier 14 figure 2 timing definitions of v ref figure 3 switching time waveform definitions of ho1 and lo3
irs21856s www.irf.com ? 2008 international rectifier 15 figure 4 delay matching waveform definitions
irs21856s www.irf.com ? 2008 international rectifier 16 input/output pin equivalent circuit diagrams vcc com vse, res, vref, dv vb vs ho1 esd diode esd diode 25v 25v 600v esd diode esd diode r esd esd diode esd diode vcc com lo3 vb vs hin1, hin2, lin3 25v esd diode esd diode r esd 600v
irs21856s www.irf.com ? 2008 international rectifier 17 lead definitions pin# symbol description 1 vcc low side supply voltage 2 com low side supply return 3 hin1 logic input for ho1 ramp reference control 4 hin2 logic input for high side gate driver outputs, in phase 5 lin3 logic input for lo w side gate driver output 6 nc no connection 7 lo3 low side gate driver output 8 vref external programmable r/c input for ramp generation 9 dv ramp selection and programmable difference voltage (dv) input 10 vs high side gate drive floating supply return 11 res adjustable current source resistor input 12 vse voltage sense input 13 ho1 high side gate driver output 14 vb high side gate drive floating supply lead assignments
irs21856s www.irf.com ? 2008 international rectifier 18 package details: soic14
irs21856s www.irf.com ? 2008 international rectifier 19 t ape and reel details: soic14
irs21856s www.irf.com ? 2008 international rectifier 20 part marking information
irs21856s www.irf.com ? 2008 international rectifier 21 ordering information standard pack base part number package type form quantity complete part number tube/bulk 55 IRS21856SPBF irs21856s soic14 tape and reel 2500 irs21856strpbf the information provided in this document is believed to be accu rate and reliable. however, international rectifier assumes no responsibility for the consequences of the use of this information. international rectifier assumes no responsibility for any infringement of patents or of other rights of third parties which ma y result from the use of this information. no license is g ranted by implication or otherwise under any patent or patent rights of inte rnational rectifier. the spec ifications mentioned in this do cument are subject to change without notice. this document supersedes and replaces all in formation previously supplied. for technical support, please contact ir?s technical assistance center http://www.irf.com/technical-info/ world headquarters: 233 kansas st., el segundo, california 90245 tel: (310) 252-7105

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