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sgm80 3/sgm809/SGM810 micropro cessor supervisory circuit in 3 - pin sot -23 sg micro corp www.sg- micro.com january 201 8 C r e v. e. 3 general description the sgm803/sgm809/SGM810 supervisory circuits monitor the power supply voltage in microprocessor and digital systems. they provide a reset output during power - up, power - down and brownout conditions. on power - up, an internal timer holds reset asserted for 2 40ms. this holds the microprocessor in a reset state until conditions have stabilized. the reset output remains operational with v cc as low as 1v. the sgm803/ sgm809 provides an active low reset signal ( reset ) while the SGM810 provides an active high signal (reset) output. the sgm809/SGM810 has push - pull outputs, whereas the sgm803 has an open- drain output, which requires an external pull - up resistor. eight reset threshold voltage options are available suitable for monitoring 1.8v, 2.5v, 3v, 3.3v and 5v supply voltages. the reset comparator features built - in glitch immunity, making it immune to fast transients on v cc . the low supply current of typically 13a makes the sgm803/sgm809/SGM810 ideal for use in portable, battery o perated equipment. all are specified over the extended - 40 to +125 temperature range. features precision voltage monitor: 1.8v, 2.5v, 3v, 3.3v, 5v options superior upgrade for max803/max809/max810 and adm803/adm809/adm810 fully specified over temperature low power consumption : 13 a ( typ) reset assertion down to 1v v cc 150ms power - on reset (min) open - drain reset output (sgm803) push - pull reset output (sgm809) push - pull reset output (SGM810) - 40 to +125 operating temperature range small packaging sgm803 available in sot - 23- 3 and sot - 23 sgm809 available in sot - 23- 3 and sot - 23 SGM810 available in sot - 23- 3 and sot - 23 applications microprocessor systems controllers intelligent instruments automotive systems safety systems portable instruments typical application microprocessor system sgm803/sgm809 gnd reset reset gnd v cc v cc r pull-up sgm803 only a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 2 january 201 8 sg micro corp www.sg- micro.com package/ordering information model reset threshold (v) package description ordering number package marking packing option sgm803 4.63 sot -23 -3 sgm803 - lxn3 /tr 803l tape and reel, 3000 4.63 sot -23 sgm803 - lxn3 l/tr 803l l tape and reel, 3000 4.38 sot -23-3 sgm803 - mxn3 /tr 803m tape and reel, 3000 4.38 sot -23 sgm803 - mxn3 l/tr 803m l tape and reel, 3000 4.00 sot -23-3 sgm803 - jxn3 /tr 803j tape and reel, 3000 4.00 sot -23 sgm803 - jxn3 l /tr 803j l tape and reel, 3000 3.08 sot -23-3 sgm803 - txn3 /tr 803t tape and reel, 3000 3.08 sot -23 sgm803 - txn3 l /tr 803t l tape and reel, 3000 2.93 sot -23-3 sgm803 - sxn3 /tr 803s tape and reel, 3000 2.93 sot -23 sgm803 - sxn3 l /tr 803s l tape and reel, 3000 2.63 sot -23-3 sgm803 - rxn3 /tr 803r tape and reel, 3000 2.63 sot -23 sgm803 - rxn3 l /tr 803r l tape and reel, 3000 2.32 sot -23-3 sgm803 - zxn3 /tr 803z tape and reel, 3000 2.32 sot -23 sgm803 - zxn3 l /tr 803z l tape and reel, 3000 1.63 sot -23-3 sgm80 3-x xn3 /tr 803x tape and reel, 3000 1.63 sot -23 sgm803 -x xn3l /tr 80 3xl tape and reel, 3000 sgm809 4.63 sot -23 -3 sgm809 - lxn3 /tr 809l tape and reel, 3000 4.63 sot -23 sgm809 - lxn3l /tr 809ll tape and reel, 3000 4.38 sot -23-3 sgm809 - mxn3 /tr 809m tape and reel, 3000 4.38 sot -23 sgm809 - mxn3l /tr 809ml tape and reel, 3000 4.00 sot -23-3 sgm809 - jxn3 /tr 809j tape and reel, 3000 4.00 sot -23 sgm809 - jxn3l /tr 809jl tape and reel, 3000 3.08 sot -23-3 sgm809 - txn3 /tr 809t tape and reel, 3000 3.08 sot -23 sgm809 - txn3l /tr 809tl tape and reel, 3000 2.93 sot -23-3 sgm809 - sxn3 /tr 809s tape and reel, 3000 2.93 sot -23 sgm809 - sxn3l /tr 809sl tape and reel, 3000 2.63 sot -23-3 sgm809 - rxn3 /tr 809r tape and reel, 3000 2.63 sot -23 sgm809 - rxn3l /tr 809rl tape and reel, 3000 2.32 sot -23-3 sgm809 - zxn3 /tr 809z tape and reel, 3000 2.32 sot -23 sgm809 - zxn3l /tr 809zl tape and reel, 3000 1.63 sot -23-3 sgm809 -x xn3 /tr 809x tape and reel, 3000 1.63 sot -23 sgm809 -x xn3l /tr 809xl tape and reel, 3000 a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 3 january 201 8 sg micro corp www.sg- micro.com package/ordering information (continued) model reset threshold (v) package description ordering number package marking packing option SGM810 4.63 sot -23 -3 SGM810 - lxn3/tr 810l tape and reel, 3000 4.63 sot -23 SGM810 - lxn3l/tr 810ll tape and reel, 3000 4.38 sot -23-3 SGM810 - mxn3/tr 810m tape and reel, 3000 4.38 sot -23 SGM810 - mxn3l/tr 810ml tape and reel, 3000 4.00 sot -23-3 SGM810 - jxn3/tr 810j tape and reel, 3000 4.00 sot -23 SGM810 - jxn3l/tr 810jl tape and reel, 3000 3.08 sot -23-3 SGM810 - txn3/tr 810t tape and reel, 3000 3.08 sot -23 SGM810 - txn3l/tr 810tl tape and reel, 3000 2.93 sot -23-3 SGM810 - sxn3/tr 810s tape and reel, 3000 2.93 sot -23 SGM810 - sxn3l/tr 810sl tape and reel, 3000 2.63 sot -23-3 SGM810 - rxn3/tr 810r tape and reel, 3000 2.63 sot -23 SGM810 - rxn3l/tr 810rl tape and reel, 3000 2.32 sot -23-3 SGM810 - zxn3/tr 810z tape and reel, 3000 2.32 sot -23 SGM810 - zxn3l/tr 810zl tape and reel, 3000 1.63 sot -23-3 SGM810 - xxn3/tr 810x tape and reel, 3000 1.63 sot -23 SGM810 - xxn3l/tr 810xl tape and reel, 3000 green (rohs & hsf): sg micro corp defines "green" to mean pb - free (rohs compatible) and free of halogen substances. if you have additional comments or questions, please contact your sgmicro representative directly. absolute maximum ratings (typical values are at t a = + 25 , unless otherwise noted.) v cc ....................................................................... - 0.3v to 6v reset , reset .......................................- 0.3v to v cc + 0.3v input current, v cc ......................................................... 20ma output current, reset , reset ................................... 20ma rate of rise, v cc ...................................................... 100v/s power dissipation, p d @ t a = + 25 sot -23 -3 ....................................................................... 0.4w package thermal resistance sot -23-3, ja .......................................................... 250 /w junction temperature ................................................. + 150 storage temperature range ........................ -65 to +150 lead temperature ( s oldering, 10s) ............................ + 260 esd susceptibility hbm ............................................................................. 4000v mm ................................................................................. 400v recommended operating conditions operating temperature range ..................... -40 to +125 overstress caution stresses beyond those listed may cause permanent damage to the device. functional operation of the device at these or any other conditions beyond those indicated in the operational section of the specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. esd sensitivity caution this integrated circuit can be damaged by esd if you dont pay attention to esd protection. sgmicro recommends that all integrated circuits be handled with appropriate precaut ions. failure to observe proper handling and installation procedures can cause damage. esd damage can range from subtle performance degradation to complete device failure. precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. disclaimer sg micro corp reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 4 january 201 8 sg micro corp www.sg- micro.com pin configuration s (top view) 1 2 gnd v cc 3 reset/reset sgm803 sgm809 SGM810 sot -23 - 3/sot -23 pin description name pin number function sgm803 sgm809 SGM810 gnd 1 1 1 ground reset 2 2 active low r eset (sgm803/sgm809) . reset remains low while v cc is below the reset threshold, and remains low for 240ms (typ) after v cc rises above the reset threshold. reset 2 active high r eset (SGM810) . reset remains high while v cc is below the reset threshold, and remains high for 240ms (typ) after v cc rises above the reset threshold. v cc 3 3 3 power supply. power supply voltage that is monitored. a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 5 january 201 8 sg micro corp www.sg- micro.com electrical characteristics (v cc = 5v for l/m/j models, 3.3v for t/s models, 3v for r models, 2.5v for z models, 1.8v for x models , unless otherwise noted.) parameter conditions min typ max units supply voltage t a = 0 to + 70 1.0 5.5 v t a = - 40 to +125 1.2 5.5 v current v cc < 5.5v, sgm8_l/m/j, t a = + 25 17 30 a v cc < 5.5v, sgm8_l/m/j, t a = - 40 to +125 50 a v cc < 3.6v, sgm8_r/s/t/z /x , t a = + 25 13 25 a v cc < 3.6v, sgm8_r/s/t/z /x , t a = - 40 to +125 45 a reset voltage threshold sgm8_l t a = + 25 4.537 4.63 4.723 v t a = - 40 to +125 4.40 4.86 v sgm8_m t a = + 25 4.292 4.38 4.468 v t a = - 40 to +125 4.16 4.56 v sgm8_j t a = + 25 3.92 4.00 4.08 v t a = - 40 to +125 3.8 4.2 v sgm8_t t a = + 25 3.003 3.08 3.157 v t a = - 40 to +125 2.92 3.23 v sgm8_s t a = + 25 2.857 2.93 3.003 v t a = - 40 to +125 2.78 3.08 v sgm8_r t a = + 25 2.564 2.63 2.696 v t a = - 40 to +125 2.50 2.76 v sgm8_z t a = + 25 2.262 2.32 2.378 v t a = - 40 to +125 2.22 2.42 v sgm8_ x t a = + 25 1.589 1.63 1.671 v t a = - 40 to +125 1.55 1.71 v reset threshold temperature coefficient 30 ppm/ v cc to reset/ reset delay v cc = v th to (v th - 100mv) 20 s reset active timeout period t a = - 40 to +85 150 240 560 ms t a = - 40 to +125 100 840 ms reset/ reset output voltage low (sgm803r/s/t/z /x ) low (sgm809r/s/t/z /x ) v cc = v th(min) , i sink = 1.2ma 0.3 v low (sgm803l/m/j) low (sgm809l/m/j) v cc = v th(min) , i sink = 3.2ma 0.4 v low (sgm803r/s/t/l/m/j/z /x ) low (sgm809r/s/t/l/m/j/z /x ) v cc > 1.0v, i sink = 50a 0.3 v high (sgm809r/s/t/z /x ) v cc > v th(max) , i source = 500a 0.8 v cc v high (sgm809l/m/j) v cc > v th(max) , i source = 800a v cc - 1.5 v low (SGM810r/s/t/z /x ) v cc = v th(max) , i sink = 1.2ma 0.3 v low (SGM810l/m/j) v cc = v th(max) , i sink = 3.2ma 0.4 v high (SGM810r/s/t/l/m/j /z ) 1.8v < v cc < v th(min) , i source = 150a 0.8 v cc v high (SGM810 x) 1. 2 v < v cc < v th(min) , i source = 150a 0.8 v cc v reset open - drain output leakage current (sgm803) v cc > v th , reset de - asserted 1 a a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 6 january 201 8 sg micro corp www.sg- micro.com typical performance characteristics pow er-dow n reset delay vs. temperature 0 50 100 150 200 250 300 -50 -30 -10 10 30 50 70 90 110 130 temperature () power-down reset (s) sgm8_t/s/r/z v od = v th - v cc v od = 10mv v od = 20mv v od = 100mv v od = 200mv supply current vs. temperature (no load) 0 5 10 15 20 25 30 -50 -30 -10 10 30 50 70 90 110 130 temperature ( ) supply current (a) v cc = 5.5v v cc = 3.6v normalized reset voltage threshold vs. temperature 0.988 0.99 0.992 0.994 0.996 0.998 1 1.002 1.004 1.006 1.008 -50 -30 -10 10 30 50 70 90 110 130 temperature ( ) normalized reset threshold 0 50 100 150 200 250 300 350 400 1 10 100 1000 maximum transient duration (s) sgm8_l/m/j sgm8_r/s/t/z maximum transient duration without causing a reset pulse vs. reset comparator overdrive reset comparator overdrive v th - v cc ( mv ) pow er-dow n reset delay vs. temperature 0 50 100 150 200 250 -50 -30 -10 10 30 50 70 90 110 130 temperature () power-down reset (s) sgm8_l/m/j v od = v th - v cc v od = 10mv v od = 20mv v od = 100mv v od = 200mv pow er-up reset delay vs. temperature 220 225 230 235 240 245 250 255 260 265 270 -50 -30 - 10 10 30 50 70 90 110 130 temperature () power-down reset (ms) sgm8_s a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 7 january 201 8 sg micro corp www.sg- micro.com typical performance characteristics ( continued ) reset output voltage vs. supply voltage 200ms/div 2v/div supply voltage reset output 5v p-p voltage sgm809s sgm809r a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 8 january 201 8 sg micro corp www.sg- micro.com application information benefits of an accurate reset threshold in other microprocessor supervisory circuits, tolerances in supply voltages lead to an overall increase in reset tolerance levels due to the deterioration of the microprocessor reset circuits power supply. the possibility of a malfunction during a power failure is grea tly reduced because the sgm803/ sgm809/ SGM810 series can operate effectively even when there are large degradations of the supply voltages. another advantage of the sgm803/sgm809/SGM810 series is its very accurate internal voltage reference circuit. t hese benefits combine to produce an exceptionally reliable voltage monitor circuit. interfacing to microprocessors with multiple interrupts in a number of cases, it is necessary to interface many interrupts from different devices (for example, thermal, altitude, and velocity sensors). the sgm803/sgm809/ SGM810 can easily be integrated into existing interrupt - handlin g circuits, as shown in figure 1 , or can be used as a standalone device. sgm809 gnd reset v cc v cc other sensing devices priority encoder 74ls147 4-line bcd to microprocessor figure 1 . interfacing to microprocessors with multiple interrupts interfacing to o ther devices output the sgm803/sgm809/SGM810 series is designed to integrate with as many devices as possible and, therefore, has a standard output dependent on v cc . this enables the parts to be used in both 3v and 5v, or any nominal voltage within the minimum and maximum specifications for v cc . this design simplifies interfacing this device to other devices. ensuring a valid reset output down to v cc = 0v when v cc falls below 1.0v, the sgm803/sgm809 reset no longer sinks current. a high impedance cmos logic input connected to reset may, therefore, drift to undetermined logic levels. to eliminate this problem, a 100k resistor should be connected from reset to ground. sgm809 gnd reset v cc v cc figure 2 . ensuring a valid reset output down to v cc = 0v preventing the high voltage spike and low power design to prevent the high voltage spike damage or input v cc current limitation low power design, i t is always to connect a resistor r1(0 to 1k ) in series to v cc , for such application, one capacitance c1(0.1 f to 4.7 f) should be connected between v cc pin and gnd. th e schematic is shown in figure 3 . t he input resistor will a ffect output driving capability. sgm809 gnd reset v cc output in r1 0 ~ 1k c1 0.1f ~ 4.7f figure 3 . preventing the high voltage spike and low power design a ll data sheet.com
microprocessor supervisory sgm803/sgm809/SGM810 circuit in 3 - pin sot - 23 9 january 201 8 sg micro corp www.sg- micro.com detailed descriptions reset timing the reset signal is asserted low for the sgm809 and high for the SGM810 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 150ms after the power supply voltage has risen above the threshold. threshould voltage 0v 0v 0v note *: undefined below minimum operating voltage. v cc reset reset 240ms (typ) 240ms (typ) v cc to reset/reset delay v cc to reset/reset delay * * * * figure 4 . reset timing diagram revision history note: page numbers for previous revisions may differ from page numbers in the current version. january 201 8 ? rev. e.2 to rev. e.3 changed reset timing diagram .......................................................................................................................................................................... 9 september 201 5 ? rev. e .1 to rev. e .2 changed electrical characteristics section .......................................................................................................................................................... 5 january 201 3 ? rev. e to rev. e .1 added recommended land pattern information ......................................................................................................................................... 10 , 11 added tape and reel information ................................................................................................................................................................ 12, 13 a ll data sheet.com
package information tx00031.000 sg micro corp www.sg- micro.com package outline dimensions sot - 23 symbol dimensions in millimeters dimensions in inches min max min max a 0.900 1.150 0.035 0.045 a1 0.000 0.100 0.000 0.004 a2 0.900 1.050 0.035 0.041 b 0.300 0.500 0.012 0.020 c 0.080 0.150 0.003 0.006 d 2.800 3.000 0.110 0.118 e 1.200 1.400 0.047 0.05 5 e1 2.250 2.550 0.089 0.100 e 0.950 bsc 0.037 bsc e1 1.900 bsc 0.075 bsc l 0.550 ref 0.022 ref l1 0.300 0.500 0.012 0.020 0 8 0 8 e e1 e1 e b d a a2 a1 c l1 0.25 l 2.29 0.76 0.76 0.95 recommended land pattern (unit: mm) a ll data sheet.com
package information tx00032.000 sg micro corp www.sg- micro.com package outline dimensions sot - 23 -3 symbol dimensions in millimeters dimensions in inches min max min max a 1.050 1.250 0.041 0.049 a1 0.000 0.100 0.000 0.004 a2 1.050 1.150 0.041 0.045 b 0.300 0. 5 00 0.012 0.0 20 c 0.100 0.200 0.004 0.008 d 2.820 3.020 0.111 0.119 e 1.500 1.700 0.059 0.067 e1 2.650 2.950 0.104 0.116 e 0.950 bsc 0.037 bsc e1 1.90 0 bsc 0.075 bsc l 0.300 0.600 0.012 0.024 0 8 0 8 e e1 e1 e b d a a2 a1 c l 0.2 0.95 0.69 0.99 2.59 1.90 recommended land pattern (unit: mm) a ll data sheet.com
package information tx10000.000 sg micro corp www.sg- micro.com tape and reel information note: the picture is only for reference. please make the object as the standard. key parameter list of tape and reel package type reel diameter reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p0 (mm) p1 (mm) p2 (mm) w (mm) pin1 quadrant dd0001 sot -23 7 9.5 3.15 2.77 1.22 4.0 4.0 2.0 8.0 q3 s ot -23 -3 7 9.0 3.2 0 3.3 0 1.3 0 4.0 4.0 2.0 8.0 q3 reel width (w1) reel diameter reel dimensions tape dimensions direction of feed p2 p0 w p1 a0 k0 b0 q1 q2 q4 q3 q3 q4 q2 q1 q3 q4 q2 q1 a ll data sheet.com
package information tx20000.000 sg micro corp www.sg- micro.com carton box dimensions note: the picture is only for reference. please make the object as the standard. key parameter list of carton box reel type length (mm) width (mm) height (mm) pizza/carton dd0002 7 (option) 368 227 224 8 7 442 410 224 18 a ll data sheet.com

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