applications all microprocessor applications where an automatic restart is required: computer electronicswhite / brown goods automotive electronics industrial electronics n nn n n t elecom systems n hand-held systems 1 features n voltage window monitoring n processor reset at power down n reset output guaranteed down to v = 1 v dd n o n c o n c nn n 1) n to-92, sot -23 5l and sot -223 packages n pin compatible with ds 1233 a in to-92 and sot -223 1) on request n clear microprocessor restart after power up low power consumption: typ. 3 m a at v = 5 v dd - 40 to +85 temperature range on request extended temperature range, -40 to +125 on-chip oscillatorno external components required push-pull or open drain output description the V6310 is a cmos device which monitors the supply voltage of any electronic system, and generates the appropriate reset signal. the g ap between the two thresholds defines the allowed voltage range. as long as v stays inside this voltage dd window, the output stays inactive. if v drops below v , or dd thlow rises above v , the output gets active. when v enters into thhigh dd the allowed range, the output remains active for an additional 50 ms (typ.). this allows the system to stabilize before getting fully active. the lower thresho ld voltage may be obtained in different versions: 2.0 v to 6 v2.4 v to 6 v 2.8 v to 6 v 3.5 v to 6 v 4.0 v to 6 v 4.5 v to 6 v ultra low power 3-pin v oltage window surveillance with time-out t ypical operating configuration fig. 1 v dd v dd v ss res or res V6310 gnd micro- processor v dd v ss res or res for open drain version: pin assignment to-92 fig. 2 v dd v ss 1 2 3 re s or re s V6310 view flat front 1) sot -223 v ss 1 2 4 v ss re s o r re s V6310 3 v dd nc 1 2 4 v ss re s o r re s V6310 3 v dd sot -23 5l nc 5 1) on request em microelectronic-marin sa V6310 r
handling procedures stresses above these listed maximum ratings may cause permanent damage to the device. exposure beyond specified operating conditions may affect device reliability or cause malfunction. 2 absolute maximum ratings t able 1 parameter voltage at v to v dd ss min. voltage at res or res max. voltage at res or resstorage temperature range v dd v min v max t sto -0.3v to+10 v v - 0.3 v ss -65 to +150 o o c v + 0.3 v dd symbol conditions this device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other cmos component. unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the supply voltage range. 1) the maximum operating temperature is confirmed by sampling at initial device qualification. operating conditions t a -40 1 +125 o c v 8 v dd t able 2 parameter symbol min. typ . max. units 1) operating temperature positive supply voltage electrical characteristics o t = -40 to +85 c, unless otherwise specified a 1) res or res open 2) only for open drain versions i dd v hys v ol v ol v ol v oh v oh i leak v = 2 v dd v = 5 v , i = 8 ma dd ol v = 5.5 v dd 1) supply current threshold low voltage threshold hysteresis res output low level res output high level 2) output leakage current m a m a m a v v v v v v v mv mv mv mv v v mv m a parameter symbol t est conditions min. typ. max. units i dd v = 5 v dd v = 8 v dd version: a,g,m version: b,h,n version: c,i,o version: d,j,p version: e,k,q version: f ,l,r i dd v thlow v thlow max. at 25 o c min. at 25 o c v oh v = 3 v , i = 4 ma dd ol v = 1 v , i = 50 m a dd ol v = 5 v , i = -8 ma dd oh v = 3 v , i = -4 ma dd oh v = 1 v , i = -100 m a dd oh 1.77 2.09 2.48 3.11 3.55 4.05 5.58 4.3 2.3 850 1.84 2.18 2.59 3.23 3.70 4.22 5.79 1.5 3.0 5.2 1.95 2.32 2.73 3.42 3.88 4.42 6.10 25 175 140 20 4.5 2.6 950 0.05 2.1 3.9 6.8 2.04 2.41 2.86 3.59 4.08 4.67 6.42 3.1 5.7 10.0 2.17 2.55 3.03 3.80 4.32 4.95 6.82 400 300 90 1 t able 3 threshold high voltage v thlow v thlow v thlow v thlow v thhigh timing characteristics o v = 5.0 v , t = -40 to +85 c, unless otherwise specified dd a t por t sen high for v = 5 v to 7 v in 5 m s dd 25 1820 20 22 power on reset time sensitivity around v thhigh ms m s m s t able 4 parameter symbol t est conditions min. t yp. max. units reaction time around v thhigh t sen low 3) t ested on versions with v higher than 3 v thlow for v = 5 v to 3 v in 5 m s dd 50 0.8 t rhigh 0.8 t rlow 55 75 75 90 150 3) sensitivity around v thlow 3) reaction time around v thlow t rlow t rhigh for v = 5 v to 7 v in 5 m s dd for v = 5 v to 3 v in 5 m s dd m s m s V6310 r
3 pin description to-92 t able 5 pin 1 23 v dd res or res v ss positive supply reset output supply ground name function sot -23 5l t able 6 pin 1 2 3 4 5 nc v ss nc res or res v dd no connection supply ground no connection reset output positive supply name function 1) sot -223 t able 7 pin 1 2 3 4 * v dd res or res v ss v ss reset output supply ground positive supply supply ground * internally connected to pin 2 1) on request name function block diagram fig.4 res or res v dd v ss volta ge ref ere nce - + res et log ic osc illat or tim er - + timing waveforms v dd v thlow 1 v logic ?1? t por t rhigh t por fig.3 res res t t t logic ?1? logic ?0? logic ?0? t senhigh t rlow v thhigh t senlow V6310 r
4 ordering information the v 6310 is available with push-pull or open drain output stage and reset active low or high. ordering form: V6310 < packaging>example: smart reset with: - reset active low - open drain output - 2.8 v threshold - to-92 package V6310 o to-92 when ordering, please specify the complete part number. version letter definition output stage threshold low voltage [v] 2.0 2.4 2.8 3.5 4.0 4.5 push-pull, reset active low a b c d e f push-pull, reset active high g h i j k l open drain, reset active low m n o p q r t able 7 chip form and sot -223 on request 1) non-stock items, minimum order 30 k pieces. 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) 1) V6310 r em microelectronic-marin sa cannot assume responsibility for use of any circuitry described other than circuitry entirely embodied in an em microelectronic-marin sa product. em microelectronic-marin sa reserves the right to change the circuitry and specifications without notice at any time. you are strongly urged to ensure that the information given has not been superseded by a more up-to-date 2000 em microelectronic-marin sa, 10/00, rev. d/317
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