AS1390B-BSOT-500

austriamicrosystems AG is now ams AG The technical content of this austriamicrosystems datasheet is still valid. 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0D[ 8QLWV 7KHUPDO3URWHFWLRQ 7KHUPDO6KXWGRZQ7KUHVKROG  ƒ& 7KHUPDO6KXWGRZQ+\VWHUHVLV  ƒ& Te ch ni ca am lc s on A te G nt st il lv al id  'HSHQGLQJRQH[WHUQDOFRPSRQHQWVDQH[WHQGHG6XSSO\9ROWDJH5DQJHXSWR9LVSRVVLEOH  *XDUDQWHHGE\GHVLJQDQGFKDUDFWHULVDWLRQ'HSHQGLQJRQH[WHUQDOFRPSRQHQWVDQH[WHQGHG2XWSXW9ROWDJH5DQJHXSWR9LVSRV VLEOH  'HSHQGLQJRQSDUDPHWHUVRIH[WHUQDOWUDQVLVWRUDQGPD[DOORZHGKHDWGLVVLSDWLRQRIWKHH[WHUQDOWUDQVLVWRU ZZZDXVWULDPLFURV\VWHPVFRP3RZHU0DQDJHPHQW$6 5HYLVLRQ  $6$$6% 'DWDVKHHW2 S H U D W L Q J  & K D U D F W H U L V W L F V  2SHUDWLQJ&KDUDFWHULVWLFV 9OUT Boost 9,OUT Boost $9OUT Buck 9,OUT Buck P$7A ƒ&XQOHVVRWKHUZLVHVSHFLILHG 100 90 90 80 80 Output Voltage (V) 100 70 60 50 40 30 va l id )LJXUH%RRVW2XWSXW9ROWDJHYV2XWSXW&XUUHQW9IN 9 70 60 50 40 30 20 20 10 10 0 Te ch ni ca a l c ms on A te G nt st i ll Efficiency (%) )LJXUH%RRVW(IILFLHQF\YV2XWSXW&XUUHQW9IN 9 0 0 0.1 1 10 0 0.25 0 0.5 Output Current (A) 1 1.25 1.5 1.75 2 28 30 )LJXUH%RRVW(IILFLHQF\YV,QSXW9ROWDJH )LJXUH )LJXUH (IILFLHQF\YV,QSX HQF\YV,QSX 100 100 90 95 80 90 70 85 Efficiency (%) Efficiency (%) )LJXUH%RRVW(IILFLHQF\YV2XWSXW&XUUHQW9IN 9 60 50 40 30 80 75 7 70 65 20 60 10 55 0 50 0.1 1 10 10 12 14 16 Output ut Current (A) 18 20 22 24 26 Input Voltage (V) )LJXUH%RRVW2XWSXW9ROWDJHYV2XWSXW&XUUHQW9 9ROWDJHYV2XWSXW&X JHYV2XWSXW&X IN 9 )LJXUH%RRVW9OUTYV7HPS9IN 9,OUT P$ 80 80 75 75 70 70 Output Voltage (V) Output put Volta Voltage (V) 0.75 5 Output put Curre Current (A) 5 65 0 60 5 55 50 45 65 60 55 50 45 40 40 0 0.5 1 1.5 2 2.5 3 3.5 4 Output Current (A) ZZZDXVWULDPLFURV\VWHPVFRP3RZHU0DQDJHPHQW$6 -30 -15 0 15 30 45 60 75 90 Temperature (ΣC) 5HYLVLRQ  $6$$6% 'DWDVKHHW2 S H U D W L Q J  & K D U D F W H U L V W L F V )LJXUH%XFN(IILFLHQF\YV2XWSXW&XUUHQW9IN 9 )LJXUH%XFN2XWSXW9ROWDJHYV2XWSXW&XUUHQW9IN 9 100 7 95 6.5 Output Voltage (V) 85 80 75 6 5.5 5 Te ch ni ca a l c ms on A te G nt st ill va l id Efficiency (%) 90 70 65 60 4.5 4 3.5 55 50 3 10 100 0 10 20 30 Output Current (mA) )LJXUH%XFN(IILFLHQF\YV2XWSXW&XUUHQW9IN 9 100 7 95 6.5 Output Voltage (V) Efficiency (%) 50 60 70 80 90 1 100 )LJXUH%XFN2XWSXW9ROWDJHYV2XWSXW&XUUHQW9 )LJXUH%XFN2 UH%XFN DJHYV2XWSXW&XU YV2XWSXW&XU IN 9 90 85 80 75 70 65 60 6 5.5 5 4 5 4.5 4 3.5 55 50 3 10 100 0 10 20 30 Output Current (mA) 40 50 60 70 80 90 100 Output Current (mA) )LJXUH%XFN(IILFLHQF\YV,QSXW9ROWDJH ,QSXW9ROWDJH QSXW9ROWDJH )LJXUH%XFN9OUTYV7HPS9IN 9 100 7 95 6.5 Output Voltage (V) 90 Efficiency (%) Efficien 40 Output Current nt (mA) 85 80 75 5 70 0 65 6 60 6 5.5 5 4.5 4 3.5 55 50 3 12 14 16 18 20 22 24 Input Voltage (V) ZZZDXVWULDPLFURV\VWHPVFRP3RZHU0DQDJHPHQW$6 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 Temperature (°C) 5HYLVLRQ  $6$$6% 'DWDVKHHW2 S H U D W L Q J  & K D U D F W H U L V W L F V 50V/Div VIN 10V/Div id VOUT 1ms/Div 5A/Div 5A/D 5A/Di lv al EN 1V/Div 50V/Div 5A/Div IIN VIN VOUT VLOAD IIN 20V/Div )LJXUH6WDUWZLWK(1B%2267SLQ 20V/Div )LJXUH/RDG5HJXODWLRQ Te ch ni ca am lc s on A te G nt st il 2ms/Div 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OUT – 3D = V FB × §© 1 + -------------------------------·¹ R FB3 (EQ 2) Where:9FB 9 Note: 7KHRYHUDOOUHVLVWDQFHVKRXOGEHLQWKHUDQJHRINWRNΩWRDYRLGDQ\QRLVHLVVXHV ZZZDXVWULDPLFURV\VWHPVFRP3RZHU0DQDJHPHQW$6 5HYLVLRQ  $6$$6% 'DWDVKHHW' H W D L O H G  ' H V F U L S W L R Q  8QGHUYROWDJH/RFNRXW89/2 7RHQDEOHWKHXVDJHRIWKHFLUFXLWZLWKDZLGHLQSXWYROWDJHUDQJHW\S9DQG9WKHWKUHVKROGIRUXQGHUYROWDJHGHWHFWLRQVKRXOGEH VHOHFWDEOHE\H[WHUQDOFRPSRQHQWV7KHUHIRUHD3$'89/2LVLPSOHPHQWHGZLWKDQH[WHUQDOUHVLVWRUWKDWVHOHFWVWKHYDOXHRIWKHWKUHVKROGDQG LPSOHPHQWVDOVRDK\VWHUHVLV7LOO89/2&2JHWVGHDFWLYDWHGWKHWKUHVKROGLVKLJKHUDIWHU89/2&2LVQRXQGHUYROWDJHFRQGLWLRQWKH WKUHVKROGLVORZHUHGE\DVZLWFKRQRIDFRQVWDQWFXUUHQWVRXUFH ,IWKHXQGHUYROWDJHORFNRXWLVQRWQHHGHHGFRQQHFWWKH89/2SLQWR9''/ ni ca a l c ms on A te G nt st i ll va l id )LJXUH89/2FRPSDUDWRUDQGH[WHUQDOUHVLVWRUGLYLGHU )LJXUH89/2FRPSDUDWRU2XWSXW )ROORZLQJHTXDWLRQVFDQEHGHULYHGIRUDGMXVWLQJWKHWKUHVKROGYROWDJHV ULYHGIRUDGMXVWLQJWK HGIRUDGMXVWLQJW 8QGHUYROWDJHWKUHVKROG+LJK LJK ch R UVLO1· § ------------------V DDH – UV UVH = V REF × © 1 + R ¹ UVLO2 (EQ 3) 8QGHUYROWDJHWKUHVKROG+LJK HWKUHVKROG+LJK HVKROG+LJK (EQ 4) Te R UVLO1 V DDH – UVL = V REF × § 1 + -------------------· – ( IHYST × R UVLO1 ) © R UVLO2¹ Where:,HYST —$  Where:, 9  RE REF 9 ZZZDXVWULDPLFURV\VWHPVFRP3RZHU0DQDJHPHQW$6 5HYLVLRQ  $6$$6% 'DWDVKHHW' H W D L O H G  ' H V F U L S W L R Q  &RQWLQXRXV&RQGXFWLRQ0RGH&&0 )RUQRUPDORSHUDWLRQWKHFRQYHUWHUVKRXOGVWD\LQFRQWLQXRXVFRQGXFWLRQPRGHWRHQVXUHWKDWWKHLQGXFWRUYDOXHPXVWEHELJJHUWKDQ/CRIT (EQ 5) id L CRIT V IN 2 § 1 – --------------------------· × V IN × R © V OUT + V D¹ = --------------------------------------------------------------------2 2 × f SW × ( V OUT + V D ) Where: 9IN,QSXWYROWDJHDW9''+ 9D'LRGHIRUZDUGYROWDJHDW' ISW6ZLWFKLQJIUHTXHQF\ 5/RDGUHVLVWRUVKRXOGEHFDOFXODWHGZLWKPLQLPXPFXUUHQWORDG5 9OUT,OUT_min ch ni ca a l c ms on A te G nt st il ,OUT_min0LQLPXPRXWSXWFXUUHQWHJIRU/('GLUYHURQO\RQH/('VWULQJLVRQ lv al 9OUT2XWSXWYROWDJH  'XW\&\FOH 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