1 aug. 2009 gnd hin lin cin vref + fo_rst interlock & noise filter uv pulse generator protection logic v b v s v cc lpout lnout1 lnout2 v no fo hpout hnout1 hnout2 filter logic filter filter vreg vref v cc vreg nc nc v b hpout hnout1 hnout2 v s nc nc nc nc nc nc hin lin fo_rst cin gnd fo v cc lpout lnout1 lnout2 v no 1 12 24 13 applications power mosfet and igbt gate driver for medium and mi- cro inverter or general purpose. features ? floating supply voltage up to 600v ? low quiescent power supply current ? separate sink and source current output up to 1a (typ) ? active miller effect clamp nmos with sink current up to ?a (typ) ? input noise filters ? over-current detection and output shutdown ? high side under voltage lockout ? fo pin which can input and output fault signals to commu- nicate with controllers and synchronize the shut down with other phases ? 24-lead ssop package description M81721FP is high voltage power mosfet and igbt gate driver for half bridge applications. block diagram pin configuration (top view) outline: 24p2q mitsubishi semiconductors M81721FP 600v high voltage half bridge driver
2 aug. 2009 v v v v v v v v v v v/ns w mw/ c c/w c c c v v v v v v v v v v v s +13.5 ? 13.5 v s 13.5 ?.5 v no 0 0 0 v s +15 15 15 v s +20 500 20 v s +20 20 5 v cc v cc v cc 5 absolute maximum ratings high side floating supply absolute voltage high side floating supply offset voltage high side floating supply voltage high side output voltage low side fixed supply voltage power ground low side output voltage logic input voltage fo input/output voltage cin input voltage symbol unit parameter t est conditions limits min. typ. max. v bs > 13.5v v bs = v b ? s hin, lin, fo_rst v b v s v bs v ho v cc v no v lo v in v fo v cin ?.5 ~ 624 v b ?4 ~ v b +0.5 ?.5 ~ 24 v s ?.5 ~ v b +0.5 ?.5 ~ 24 v cc ?4 ~ v cc +0.5 v no ?.5 ~ v cc +0.5 ?.5 ~ v cc +0.5 ?.5 ~ v cc +0.5 ?.5 ~ v cc +0.5 50 ~ 1.25 ~ 12.5 ~ 80 ?0 ~ 125 ?0 ~ 100 ?0 ~ 125 v bs = v b ? s hin, lin, fo_rst ta = 25 c, on pcb ta > 25 c, on pcb high side floating supply absolute voltage high side floating supply offset voltage high side floating supply voltage high side output voltage low side fixed supply voltage power ground low side output voltage logic input voltage fo input/output voltage cin input voltage allowable offset voltage slew rate package power dissipation linear derating factor junction-case thermal resistance junction temperature operation temperature storage temperature v b v s v bs v ho v cc v no v lo v in v fo v cin dv s /dt pd k q rth(j-c) tj t opr t stg symbol parameter test conditions ratings unit mitsubishi semiconductors M81721FP 600v high voltage half bridge driver absolute maximum ratings indicate limitation beyond which destruction of device may occur. all voltage parameters are absolute voltage reference to gnd unless otherwise specified. recommended operating conditions for proper operation the device should be used within the recommended conditions. all voltage parameters are absolute voltages referenced to gnd unless otherwise specified. note: for proper operation, the device should be used within the recommend conditions. thermal derating factor characteristic pa ck age power dissipation pd (w) 0 0 1.4 1.0 1.2 0.6 0.8 0.2 0.4 25 50 100 75 125 150 ambience temperature ( c)
3 aug. 2009 typical connection mitsubishi semiconductors M81721FP 600v high voltage half bridge driver note: if hvic is working in high noise environment, it is recommended to connect a 1nf ceramic capacitor (c fo ) to fo pin. dc bus voltage dc+ dc- M81721FP vout cboot c cin r goff 5v~15v 15v v cc v b v s v no hpout lpout lnout1 lnout2 hnout1 hnout2 hin rboot dboot lin fo_rst fo gnd cin r gon r fo c fo r goff r gon hout lout rshunt r cin other phases mcu/dsp controller
4 aug. 2009 mitsubishi semiconductors M81721FP 600v high voltage half bridge driver a ma ma v v v v ma ma ns v v ns v v v v v v s v v a a a ? ? ? s s s s ns ns ns ns 14.5 4.0 0.6 ?.01 100 2.0 5.5 4.0 10.5 10 0.2 4 0.4 4.5 0.4 0.35 0.4 0.35 0.15 0.7 15 0 1 0 200 3.4 7.6 400 1 1.3 10.8 0.5 8 0.5 6.5 1 ? ? 15 15 15 0.8 0.74 0.8 0.74 40 40 60 60 1.0 0.5 1.5 0.5 0.6 1.4 500 4 8.5 0.95 0.6 12.1 1 1.6 0.8 16 0.6 8.5 1.25 1.2 1.25 1.2 high side leakage current v bs quiescent supply current v cc quiescent supply current high level output voltage low level output voltage high level input threshold voltage low level input threshold voltage high level input bias current low level input bias current input signals filter time high side active miller clamp nmos input threshold voltage low side active miller clamp nmos input threshold voltage active miller clamp nmos filter time low level fo output voltage high level fo input threshold voltage low level fo input threshold voltage v bs supply uv reset voltage v bs supply uv trip voltage v bs supply uv hysteresis voltage v bs supply uv filter time cin trip voltage por trip voltage output high level short circuit pulsed current output low level short circuit pulsed current active miller clamp nmos output low level short circuit pulsed current output high level on resistance output low level on resistance active miller clamp nmos output low level on resistance high side turn-on propagation delay high side turn-off propagation delay low side turn-on propagation delay low side turn-off propagation delay output turn-on rise time output turn-off fall time delay matching, high side turn-on and low side turn-off delay matching, high side turn-off and low side turn-on symbol unit parameter t est conditions limits min. typ. max. v b = v s = 600v hin = lin = 0v hin = lin = 0v i o = ?0ma, hpout, lpout i o = 20ma, hnout1, lnout1 hin, lin, fo_rst hin, lin, fo_rst v in = 5v v in = 0v hin, lin, fo_rst, fo v in = 0v v in = 0v v in = 0v i fo = 1ma v bs uvh = v bs uvr? bs uvt hpout(lpout) = 0v, hin = 5v, pw < 5 s hnout1 (lnout1) = 15v, lin = 5v, pw < 5 s hnout2 (lnout2) = 15v, lin = 5v, pw < 5 s i o = ?a, r oh = (v oh ? o )/i o i o = 1a, r ol1 = v o /i o i o = 1a, r ol2 = v o /i o hpout short to hnout1 and hnout2, cl = 1nf hpout short to hnout1 and hnout2, cl = 1nf lpout short to lnout1 and lnout2, cl = 1nf lpout short to lnout1 and lnout2, cl = 1nf cl = 1nf cl = 1nf tdlh (ho) -tdhl (lo) tdlh (lo) -tdhl (ho) i fs i bs i cc v oh v ol v ih v il i ih i il tfilter v hno2 v lno2 tv no2 v olfo v ihfo v ilfo v bs uvr v bs uvt v bs uvh tv bs uv v cin v por i oh i ol1 i ol2 r oh r ol1 r ol2 tdlh(ho) tdhl(ho) tdlh(lo) tdhl(lo) tr tf ? tdlh ? tdhl electrical characteristics (ta=25 c, v cc =v bs (=v b ? s )=15v, unless otherwise specified) note: typ is not specified.
5 aug. 2009 mitsubishi semiconductors M81721FP 600v high voltage half bridge driver function table (q: keep previous status) interlock active cin tripping when lin = h cin not tripping when lin = l output shuts down when fo = l v cc power reset v bs power reset v bs power reset is tripping when lin = h h l h l l h l h x x x x x x hin behavioral status lin v bs /uv v cc / por hout lout l h l h h l x x l h h h h h x x x x l l h h h h h h h l h h l l h q l q l l l l l h l q l q l l l h note1 : ??status of v bs /uv indicates a high side uv condition; ??status of v cc /por indicates a v cc power reset condition. note 2 : in the case of both input signals (hin and lin) are ?? output signals (hout and lout) keep previous status. note 3 : x (hin) : l h or h l. other : h or l. note 4 : output signal (hout) is triggered by the edge of input signal. fo (output) h h h h l h l h h h functional description fo_rst l l l l x x x x l l cin l l l l h h x x l l fo (input) l 1. input/output timing diagram lin hin hout lout 90% 90% 90% 90% 10% 10% 10% 10% tdlh(ho) 50% 50% tdhl(lo) tf tr tr ? tdlh ? tdhl tf tdlh(lo) tdhl(ho) hin hout
6 aug. 2009 mitsubishi semiconductors M81721FP 600v high voltage half bridge driver note1 : delay times between input and output signals are not shown in the figure above. note2 : the minimum fo_rst pulse width should be more than 500ns (because of fo_rst input filter circuit). hin lin cin fo_rst hout lout fo 2. input interlock timing diagram when the input signals (hin/lin) are high level at the same time, the outputs (hout/lout) keep their previous status. but if signals (hin/lin) are going to high level simultaneously, hin signals will get active and cause hout to enter ? status. note1 : the minimum input pulse width at hin/lin should be to more than 500ns (because of hin/lin input noise filter circuit). note2 : if a high-high status of input signals (hin/lin) is ended with only one input signal entering low level and another sti ll being in high level, the output will enter high-low status after the delay match time (not shown in the figure above). note3 : delay times between input and output signals are not shown in the figure above. hin lin hout lout 3. short circuit protection timing diagram when an over-current is detected by exceeding the threshold at the cin and lin is at high level at the same time, the short circuit protection will get active and shutdown the outputs while fo will issue a low level (indicating a fault signal). the fault output latch is reset by a high level signal at fo_rst pin and then fo will return to high level while the output of the driver will respond to the following active input signal.
7 aug. 2009 mitsubishi semiconductors M81721FP 600v high voltage half bridge driver note1 : delay times between input and output signals are not shown in the figure above. note2 : the minimum fo pulse width should be more than 500ns (because of fo input filter circuit). 4. fo input timing diagram when fo is pulled down to low level in case the fo of other phases becomes low level (fault happened) or the mcu/ dsp sets fo to low level, the outputs (hout, lout) of the driver will be shut down. as soon as fo goes high again, the output will respond to the following active input signal. note1 : delay times between input and output signals are not shown in the figure above. 5. low side v cc supply power reset sequence when the v cc supply voltage is lower than power reset trip voltage, the power reset gets active and the outputs (hout/ lout) become ?? as soon as the v cc supply voltage goes higher than the power reset trip voltage, the outputs will re- spond to the following active input signals. hin lin fo hout lout v cc hin v por voltage lin hout lout
8 aug. 2009 mitsubishi semiconductors M81721FP 600v high voltage half bridge driver note1 : delay times between input and output signals are not shown in the figure above. 6. high side v bs supply under voltage lockout sequence when v bs supply voltage drops below the v bs supply uv trip voltage and the duration in this status exceeds the v bs supply uv filter time, the output of the high side is locked. as soon as the v bs supply voltage rises above the v bs supply uv reset voltage, the output will respond to the following active hin signal. 7. power start-up sequence at power supply start-up the following sequence is recommended when bootstrap supply topology is used. (1). apply v cc . (2). make sure that fo is at high level. (3). set lin to high level and hin to low level so that bootstrap capacitor could be charged. (4). set lin to low level. note : if two power supply are used for supplying note : v cc and v bs individually, it is recommended note : to set v cc first and then set v bs . v bs uvt v bs uvr v bs uvr v bs supply uv hysteresis voltage v bs hin lin hout lout v bs supply uv filter time v cc fo hin lin lout
9 aug. 2009 mitsubishi semiconductors M81721FP 600v high voltage half bridge driver 8. active miller effect clamp nmos output timing diagram the structure of the output driver stage is shown in following figure. this circuit structure employs a solution for the proble m of the miller current through cres in igbt switching applications. instead of driving the igbt gate to a negative voltage to increase the safety margin, this circuit structure uses a nmos to establish a low impedance path to prevent the self-turn-on due to the parasitic miller capacitor in power switches. when hin/lin is at low level and the voltage of the vout (igbt gate voltage) is below active miller effect clamp nmos input threshold voltage, the active miller effect clamp nmos is being turned on and opens a low resistive path for the miller current through cres. p1 on p1 off n1 on n2 on n1 off p1 on n1 off n2 off n2 off t w active miller effect clamp nmos input threshold active miller effect clamp nmos keeps turn-on if t w does not exceed active miller clamp nmos filter time v in v pg v n1g vout v n2g cres high dv/dt p1 v out v s /v no v n2g v pg /v n1g v in =0 (from hin/lin) active miller effect clamp nmos cies n2 n1 v bs /v cc
10 aug. 2009 mitsubishi semiconductors M81721FP 600v high voltage half bridge driver p ackage outline ssop24-p-300-0.80 weigh t(g) jedec code 0.2 eiaj package code lead material cu alloy 24p2q-a symbol min nom max a a 2 b c d e l l 1 y dimension in millimeters h e a 1 i 2 .3 0 0 .18 0 .0 10 .2 5 .5 7 .4 0 .27 1 .1 0 .8 1 .35 0 .2 0 .1 10 .3 5 .8 0 .8 7 .6 0 .25 1 .62 7 .2 0 .1 2 .45 0 .25 0 .2 10 .4 5 .1 8 .8 0 .1 0 b 2 ?5 0 0 ? e e 1 24 13 12 1 h e e d e y f a a 2 a 1 l 1 l c e b 2 e 1 i 2 recommended mount pad detail f z 1 0.65 0.8 z detail g z z 1 b g internal diode clamp circuits for input and output pins v cc v cc hin lin fo_rst lpout lnout1 lnout2 gnd 5k v no v cc cin fo gnd v b hpout v s v cc v no gnd v b hnout1 hnout2
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