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IRS20965 1 www.irf.com ? 20 14 international rectifier february 21, 2014 class d audio driver features ? hi - side and lo - side independent floating pwm input ? programmable bidirectional over - current detection with self - reset function ? over current sensing output ? shoot - through prevention logic ? high noise immunity ? 100 v ratings deliver up to 500 w in output power ? 3.3 v / 5 v logic compatible input ? operates up to 800 khz typical applications ? class d audio amplifier ? half bridge converter with digital controller product summary v offset (max) ? 100 v gate driver io+ 2 .0 a io - 2 . 0 a propagation delay 120 ns oc protection delay (max) 500 n s shutdown delay (max) 250 ns package options 16 - lead soic typical connection diagram (please refer to lead assignments for correct pin configuration. this diagram shows electrical connections only.) http://
irs 20965 2 www.irf.com ? 20 1 4 international rectifier february 21, 2014 table of contents page description 3 qualification information 4 absolute maximum ratings 5 recommended operating conditions 6 electrical characteristics 7 waveform definitions 9 functional block diagram 1 1 input/output pin equivalent circuit diagram 1 2 lead definitions 1 3 lead assignments 1 3 application information and additional details 14 package details 1 6 tape and reel details 1 7 part marking information 18 ordering information 1 8 http://
irs 20965 3 www.irf.com ? 20 1 4 international rectifier february 21, 2014 description the IRS20965s is a high voltage, high speed mosfet driver with floating pwm inputs designed for class d audio amplifier applications. bi - directional current sensing using r ds(on) of the mosfets detects over current conditions during positive and negative load currents without any external shunt resistors. an over current flag output provides over current status without shutting down, ena bling full external control over ocp protection sequences. independent hin and lin inputs offers independent control on ho and lo. internal shoot - thru prevention logic provides safe operation by eliminating simultaneous on state in the output mosfet. http://
irs 20965 4 www.irf.com ? 20 1 4 international rectifier february 21, 2014 qualification information ? ?? has passed jedecs industrial qualification. irs consumer qualification level is ??? ? ? qualification standards can be found at international rectifiers web site ?? ??? http://
irs 20965 5 www.irf.com ? 20 1 4 international rectifier february 21, 2014 absolute maximum ratings absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. all voltage parameters are absolute voltages referenced to v ss ; all currents are defined positive into any lead. the thermal resista nce and power dissipation ratings are measured under board mounted and still air conditions. symbol definition min. max. units v b high side floating supply voltage - 0.3 215 v v s high side floating supply voltage ? ? ? ? ? ? ?? ??? ? ? ? ?? ??? http://
irs 20965 6 www.irf.com ? 20 1 4 international rectifier february 21, 2014 recommended operating conditions for proper operation, the device should be used within the recommended conditions below. the vs and com offset ratings are tested with supplies biased at i dd = 3ma, v cc = 12v and v b - v s = 12v. symbol definition min. max. units v b high side floating supply absolute voltage vs+10 vs+14 v v s high side floating supply offset voltage ? ?? ? ? ?? C be 6.3k to 16.7k?. http://
irs 20965 7 www.irf.com ? 20 1 4 international rectifier february 21, 2014 electrical characteristics v cc , v bs = 12 v, i dd =3ma, v ss =20v, c l =1nf, stp=vcc and t a =25 ? 1 0 1 0 http://
irs 20965 8 www.irf.com ? 20 1 4 international rectifier february 21, 2014 electrical characteristics (contd) ? C C http://
irs 20965 9 www.irf.com ? 20 1 4 international rectifier february 21, 2014 waveform definitions figure 1: timing diagram figure 2: deadtime waveform definitions http://
irs 20965 10 www.irf.com ? 20 1 4 international rectifier february 21, 2014 figure 3: csd to shutdown waveform definitions figure 4: v s > vth ocl to shutdown waveform figure 5: v csh > vth och to shutdown waveform http://
irs 20965 11 www.irf.com ? 20 1 4 international rectifier february 21, 2014 fu nctional block diagram http://
irs 20965 12 www.irf.com ? 20 1 4 international rectifier february 21, 2014 input/output pin equivalent circuit diagrams: http://
irs 20965 13 www.irf.com ? 20 1 4 international rectifier february 21, 2014 lead definitions pin # symbol description 1 vdd floating input positive supply 2 csd shutdown timing capacitor, referenced to vss 3 oc over current warning output, open drain referenced to vss 4 hin pwm input, in phase with ho, referenced to vss 5 lin pwm input, in phase with lo, referenced to vss 6 vss floating input supply return 7 vref 5v reference output for setting ocset, reference to com 8 ocset low side over current threshold setting, referenced to com 9 com low side supply return 10 lo low side output 11 vcc low side logic supply 12 stp shoot - thru prevention logic override (vcc: enabled, com: disabled) 13 vs high side floating supply return 14 ho high side output 15 vb high side floating supply 16 csh high side over current sensing input, referenced to vs lead assignments soic16n v d d c s d o c o c s e t l o h i n l i n v c c s t p v r e f h o v s v s s 1 2 3 4 5 6 7 8 c s h 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 v b i r s 2 0 9 6 5 c o m http://
irs 20965 14 www.irf.com ? 20 1 4 international rectifier february 21, 2014 package details: soic 16n http://
irs 20965 15 www.irf.com ? 20 1 4 international rectifier february 21, 2014 tape and reel details: soic 16n carrier tape dimension for 16soicn code min max min max a 7.90 8.10 0.311 0.318 b 3.90 4.10 0.153 0.161 c 15.70 16.30 0.618 0.641 d 7.40 7.60 0.291 0.299 e 6.40 6.60 0.252 0.260 f 10.20 10.40 0.402 0.409 g 1.50 n/a 0.059 n/a h 1.50 1.60 0.059 0.062 reel dimensions for 16soicn code min max min max a 329.60 330.25 12.976 13.001 b 20.95 21.45 0.824 0.844 c 12.80 13.20 0.503 0.519 d 1.95 2.45 0.767 0.096 e 98.00 102.00 3.858 4.015 f n/a 22.40 n/a 0.881 g 18.50 21.10 0.728 0.830 h 16.40 18.40 0.645 0.724 metric imperial metric imperial e f a c d g a b h note : controlling dimension in mm loaded tape feed direction a h f e g d b c http://
irs 20965 16 www.irf.com ? 20 1 4 international rectifier february 21, 2014 part marking information ordering information base part number package type standard pack complete part number form quantity IRS20965spbf tube/bulk 45 IRS20965s pbf tape and reel 2500 IRS20965strpbf the information provided in this document is believed to be accurate and reliable. however, international rectifier assumes n o 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 may result from the use of this information. no license is granted by impl ication or otherwise under any patent or patent rights of international rectifier. the specifications mentioned in this document are subject to change without notice. this document supersedes and replaces all information previously supplied. for technical support, please contact irs technical assistance cen world headquarters: so16n 233 kansas st., el segundo, california 90245 tel: (310) 252 - 7105 IRS20965s ir logo yww ? part number date code pin 1 identifier lot code (prod mode C ? xxxx marking code lead free released non-lead free released ? p http://

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