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? 2005 microchip technology inc. ds21906b-page 1 mcp102/103/121/131 features ? ultra low supply current: 1.75 a (steady-state max.) ? precision monitoring options of: - 1.90v, 2.32v, 2.63v, 2.93v, 3.08v, 4.38v and 4.63v ? resets microcontroller in a power-loss event ?rst pin (active-low): - mcp121: active-low, open-drain - mcp131: active-low, open-drain with internal pull-up resistor - mcp102 and mcp103: active-low, push-pull ? reset delay timer (120 ms delay, typ.) ? available in sot23-3, to-92 and sc-70 packages ? temperature range: - extended: -40c to +125c ( except mcp1xx-195 ) - industrial: -40c to +85c ( mcp1xx-195 only ) ? pb-free devices applications ? critical microcontroller and microprocessor power-monitoring applications ? computers ? intelligent instruments ? portable battery-powered equipment general description the mcp102/103/121/131 are voltage supervisor devices designed to keep a microcontroller in reset until the system voltage has reached and stabilized at the proper level for reliable system operation. table 1 shows the available features for these devices. package types block diagram table 1: device features sot23-3/sc-70 v ss rst mcp102/121/131 1 2 3 v dd rst to-92 sot23-3/sc-70 v dd v ss mcp103 1 2 3 rst v dd v ss v dd comparator + ? output driver rst band gap reference v ss reset delay circuit r (1) note 1: mcp131 only device output reset delay (typ) package pinout (pin # 1, 2, 3) comment type pull-up resistor mcp102 push-pull no 120 ms rst , v dd , v ss mcp103 push-pull no 120 ms v ss , rst , v dd mcp121 open-drain external 120 ms rst , v dd , v ss mcp131 open-drain internal (~95 k )120ms rst , v dd , v ss mcp111 open-drain external no v out , v ss , v dd see mcp111/112 data sheet (ds21889) mcp112 push-pull no no v out , v ss , v dd see mcp111/112 data sheet (ds21889) micropower volt age supervisors
mcp102/103/121/131 ds21906b-page 2 ? 2005 microchip technology inc. 1.0 electrical characteristics absolute maximum ratings? v dd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0v input current (v dd ) . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 ma output current (rst ) . . . . . . . . . . . . . . . . . . . . . . . . . .10 ma rated rise time of v dd . . . . . . . . . . . . . . . . . . . . . . 100v/s all inputs and outputs (except rst ) w.r.t. v ss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6v to (v dd + 1.0v) rst output w.r.t. v ss . . . . . . . . . . . . . . . . . . . -0.6v to 13.5v storage temperature . . . . . . . . . . . . . . . . . . -65c to + 150c ambient temp. with power applied . . . . . . . -40c to + 125c maximum junction temp. with power applied . . . . . . . . 150c esd protection on all pins . . . . . . . . . . . . . . . . . . . . . . . . . 2kv ? notice: stresses above those listed under ?maximum ratings? may cause permanent damage to the device. this is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this sp ecification is not implied. exposure to maximum rating conditions for extended periods may affect device reliability. dc characteristics electrical specifications: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only), t a = -40c to +125c. parameters sym min typ max units conditions operating voltage range v dd 1.0 ? 5.5 v specified v dd value to rst low v dd 1.0 ? v i r st = 10 ua, v r st < 0.2v operating current mcp102, mcp103, i dd ? < 1 1.75 a reset power-up timer (t rpu ) inactive mcp121 ? ? 20.0 a reset power-up timer (t rpu ) active mcp131 i dd ?< 11.75av dd > v trip and reset power-up timer (t rpu ) inactive ??75av dd < v trip and reset power-up timer (t rpu ) inactive (note 3) ? ? 90 a reset power-up timer (t rpu ) active (note 4) note 1: trip point is 1.5% from typical value. 2: trip point is 2.5% from typical value. 3: rst output is forced low. there is a current through the internal pull-up resistor. 4: this includes the current through the internal pull-up resistor and the reset power-up timer. 5: this specification allows this device to be used in picmicro ? microcontroller applications that require in-circuit serial programming? (icsp?) (see device-specif ic programming specifications for vo ltage requirements). this specification does not allow a continuos high voltage to be present on the open-drain output pin (v out ). the total time that the v out pin can be above the maximum device operational voltage (5.5v) is 100s. current into the v out pin should be limited to 2 ma and it is recommended that the device operational temperature be maintained between 0c to 70c (+25c preferred). for additional information, please refer to figure 2-33. 6: this parameter is established by characterization and not 100% tested.
? 2005 microchip technology inc. ds21906b-page 3 mcp102/103/121/131 v dd trip point mcp1xx-195 v trip 1.872 1.900 1.929 v t a = +25c (note 1) 1.853 1.900 1.948 v t a = -40c to +85c (note 2) mcp1xx-240 2.285 2.320 2.355 v t a = +25c (note 1) 2.262 2.320 2.378 v note 2 mcp1xx-270 2.591 2.630 2.670 v t a = +25c (note 1) 2.564 2.630 2.696 v note 2 mcp1xx-300 2.886 2.930 2.974 v t a = +25c (note 1) 2.857 2.930 3.003 v note 2 mcp1xx-315 3.034 3.080 3.126 v t a = +25c (note 1) 3.003 3.080 3.157 v note 2 mcp1xx-450 4.314 4.380 4.446 v t a = +25c (note 1) 4.271 4.380 4.490 v note 2 mcp1xx-475 4.561 4.630 4.700 v t a = +25c (note 1) 4.514 4.630 4.746 v note 2 v dd trip point tempco t tpco ? 100 ? ppm/c threshold hysteresis ( min. = 1%, max = 6%) mcp1xx-195 v hys 0.019 ? 0.114 v t a = +25c mcp1xx-240 0.023 ? 0.139 v mcp1xx-270 0.026 ? 0.158 v mcp1xx-300 0.029 ? 0.176 v mcp1xx-315 0.031 ? 0.185 v mcp1xx-450 0.044 ? 0.263 v mcp1xx-475 0.046 ? 0.278 v rst low-level output voltage v ol ??0.4vi ol = 500 a, v dd = v trip(min) rst high-level output voltage (mcp102 and mcp103 only) v oh v dd ? 0.6 ? ? v i oh = 1 ma, for mcp102/mcp103 only (push-pull output) internal pull-up resistor (mcp131 only) r pu ?95?k v dd = 5.5v open-drain high voltage on output (mcp121 only) v odh ? ? 13.5 (5) vv dd = 3.0v, time voltage > 5.5v applied 100s, current into pin limited to 2 ma, 25c operation recommended (note 5, note 6) open-drain output leakage current (mcp121 only) i od ?0.1?a dc characteristics (continued) electrical specifications: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only), t a = -40c to +125c. parameters sym min typ max units conditions note 1: trip point is 1.5% from typical value. 2: trip point is 2.5% from typical value. 3: rst output is forced low. there is a current through the internal pull-up resistor. 4: this includes the current through the internal pull-up resistor and the reset power-up timer. 5: this specification allows this device to be used in picmicro ? microcontroller applications that require in-circuit serial programming? (icsp?) (see device-specif ic programming specifications for vo ltage requirements). this specification does not allow a continuos high voltage to be present on the open-drain output pin (v out ). the total time that the v out pin can be above the maximum device operational voltage (5.5v) is 100s. current into the v out pin should be limited to 2 ma and it is recommended that the device operational temperature be maintained between 0c to 70c (+25c preferred). for additional information, please refer to figure 2-33. 6: this parameter is established by characterization and not 100% tested.
mcp102/103/121/131 ds21906b-page 4 ? 2005 microchip technology inc. figure 1-1: timing diagram. ac characteristics temperature characteristics electrical specifications: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only), t a = -40c to +125c. parameters sym min typ max units conditions v dd detect to rst inactive t rpu 80 120 180 ms figure 1-1 and c l = 50 pf v dd detect to rst active t rpd ? 130 ? s v dd ramped from v trip(max) + 250 mv down to v trip(min) ? 250 mv, per figure 1-1 , c l = 50 pf (note 1) rst rise time after rst active (mcp102 and mcp103 only) t rt ?5 ?sfor rst 10% to 90% of final value per figure 1-1 , c l = 50 pf (note 1) note 1: these parameters are for design guidance only and are not 100% tested. 1v 1v v trip v dd rst t rpu v oh t rt t rpd v ol electrical specifications: unless otherwise noted, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only), t a = -40c to +125c. parameters sym min typ max units conditions temperature ranges specified temperature range t a -40 ? +85 oc mcp1xx-195 specified temperature range t a -40 ? +125 oc except mcp1xx-195 maximum junction temperature t j ? ? +150 oc storage temperature range t a -65 ? +150 oc package thermal resistances thermal resistance, 3l-sot23 ja ? 336 ? oc/w thermal resistance, 3l-sc-70 ja ? 340 ? oc/w thermal resistance, 3l-to-92 ja ? 131.9 ? oc/w
? 2005 microchip technology inc. ds21906b-page 5 mcp102/103/121/131 2.0 typical performance curves note: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only; see figure 4-1 ), t a = -40c to +125c. figure 2-1: i dd vs. temperature (reset power-up timer inactive) ( mcp102-195 ). figure 2-2: i dd vs. temperature (reset power-up timer inactive) ( mcp131-315 ). figure 2-3: i dd vs. temperature (reset power-up timer inactive) ( mcp121-450 ). figure 2-4: i dd vs. temperature (reset power-up timer active) ( mcp102-195 ). figure 2-5: i dd vs. temperature (reset power-up timer active) ( mcp131-315 ). figure 2-6: i dd vs. temperature (reset power-up timer active) ( mcp121-450 ). note: the graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. the performance characteristics listed herein are not tested or guaranteed. in some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 -40 -20 0 20 40 60 80 100 120 140 temperature (c) i dd (ua) 1.7v 1.0v 2.1v 2.8v 4.0v 5.0v 5.5v mcp102-195 0 5 10 15 20 25 30 35 -40 -20 0 20 40 60 80 100 120 140 temperature (c) i dd (ua) 1.0v 2.9v mcp131-315 3.3v, 4.0v, 5.0v, 5.5v 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 -40 -20 0 20 40 60 80 100 120 140 temperature (c) i dd (ua) 3.0v 1.0v 4.6v 4.1v 5.0v 5.5v mcp121-450 4.8v 0 2 4 6 8 10 12 14 16 -40 -20 0 20 40 60 80 100 120 140 temperature (c) i dd (ua) 2.1v 2.8v 4.0v 5.0v 5.5v mcp102-195 0 10 20 30 40 50 60 70 80 -40 -20 0 20 40 60 80 100 120 140 temperature (c) i dd (ua) 3.3v 4.0v 4.5v 5.0v mcp131-315 5.5v 0 2 4 6 8 10 12 14 16 -40 -20 0 20 40 60 80 100 120 140 temperature (c) i dd (ua) 4.6v 5.0v 5.5v mcp121-450 4.8v
mcp102/103/121/131 ds21906b-page 6 ? 2005 microchip technology inc. note: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only; see figure 4-1 ), t a = -40c to +125c. figure 2-7: i dd vs. v dd (reset power-up timer inactive) ( mcp102-195 ). figure 2-8: i dd vs. v dd (reset power-up timer inactive) ( mcp131-315 ). figure 2-9: i dd vs. v dd (reset power-up timer inactive) ( mcp121-450 ). figure 2-10: i dd vs.v dd (reset power-up timer active) ( mcp102-195 ). figure 2-11: i dd vs.v dd (reset power-up timer active) ( mcp131-315 ). figure 2-12: i dd vs.v dd (reset power-up timer active) ( mcp121-450 ). 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 1.0 2.0 3.0 4.0 5.0 6. 0 v dd (v) i dd (ua) -40c +25c +85c +125c mcp102-195 0c -5 0 5 10 15 20 25 30 35 1.0 2.0 3.0 4.0 5.0 6.0 v dd (v) i dd (ua) mcp131-315 -40c +85c +125c 0c, +25c +70 c 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 2.0 3.0 4.0 5.0 6. 0 v dd (v) i dd (ua) mcp121-450 -40c +25c +85c +125c 0c +70c 0 2 4 6 8 10 12 14 16 1.0 2.0 3.0 4.0 5.0 6. 0 v dd (v) i dd (ua) 0c +25c +70c +85c +125c -40c mcp102-195 device in reset t rpu inactive device in reset t rpu inactive 0 10 20 30 40 50 60 70 80 1.0 2.0 3.0 4.0 5.0 6.0 v dd (v) i dd (ua) mcp131-315 -40c, 0c +25c +85c +125c +70c device in reset t rpu inactive -2 0 2 4 6 8 10 12 14 16 1.02.03.04.05.06. 0 v dd (v) i dd (ua) mcp121-450 -40c +25c +85c +125c 0c +70c device in reset t rpu inactive
? 2005 microchip technology inc. ds21906b-page 7 mcp102/103/121/131 note: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 ; see figure 4-1 ), t a = -40c to +125c. figure 2-13: v trip vs. temperature vs. hysteresis ( mcp102-195 ). figure 2-14: v trip vs. temperature vs. hysteresis ( mcp131-315 ). figure 2-15: v trip vs. temperature vs. hysteresis ( mcp121-450 ). figure 2-16: v ol vs. i ol ( mcp102-195 @ v dd = 1.7v). figure 2-17: v ol vs. i ol ( mcp131-315 @ v dd = 2.9v). figure 2-18: v ol vs. i ol ( mcp121-450 @ v dd = 4.1v). 1.895 1.900 1.905 1.910 1.915 1.920 1.925 1.930 1.935 1.940 1.945 -60 -10 40 90 140 temperature (c) v trip (v) 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 hyst (v) v trip , decreasing v dd v hys , hysteresis mcp102-195 v trip , increasing v dd 3.060 3.080 3.100 3.120 3.140 3.160 3.180 3.200 -60 -10 40 90 140 temperature (c) v trip (v) 0.090 0.092 0.094 0.096 0.098 0.100 0.102 0.104 0.106 0.108 hyst (v) mcp131-315 v trip , decreasing v dd v trip , increasing v dd v hys , hysteresis 4.300 4.350 4.400 4.450 4.500 4.550 -60 -20 20 60 100 140 temperature (c) v trip (v) 0.100 0.110 0.120 0.130 0.140 0.150 0.160 0.170 0.180 0.190 hyst (v) mcp121-450 v trip , decreasing v dd v trip , increasing v dd v hys , hysteresis -0.020 0.000 0.020 0.040 0.060 0.080 0.100 0.120 0.00 0.25 0.50 0.75 1.00 i ol (ma) v ol (v) -40c 0c +85c +125c mcp102-195 v dd = 1.7v +70c +25c 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.070 0.00 0.25 0.50 0.75 1.00 i ol (ma) v ol (v) mcp131-315 v dd = 2.9v -40c +25c +85c +125c +70c 0c 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.00 0.25 0.50 0.75 1.00 i ol (ma) v ol (v) mcp121-450 v dd = 4.1v -40c +25c +85c +125c +70c 0c
mcp102/103/121/131 ds21906b-page 8 ? 2005 microchip technology inc. note: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only; see figure 4-1 ), t a = -40c to +125c. figure 2-19: v ol vs. temperature ( mcp102-195 @ v dd = 1.7v). figure 2-20: v ol vs. temperature ( mcp131-315 @ v dd = 2.9v). figure 2-21: v ol vs. temperature ( mcp121-450 @ v dd = 4.1v). figure 2-22: v oh vs. i ol ( mcp102-195 @ v dd = 2.1v). 0.000 0.020 0.040 0.060 0.080 0.100 0.120 0.140 -40 0 40 80 120 temperature (c) v ol (v) i ol = 0.00 ma mcp102-195 v dd = 1.7 v i ol = 0.25 ma i ol = 0.50 ma i ol = 0.75 ma i ol = 1.00 ma 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.070 -40 0 40 80 120 temperature (c) v ol (v) mcp131-315 v dd = 2.9v i ol = 0.00 ma i ol = 0.25 ma i ol = 0.50 ma i ol = 0.75 ma i ol = 1.00 ma 0.000 0.010 0.020 0.030 0.040 0.050 0.060 -40 0 40 80 120 temperature (c) v ol (v) i ol = 0.00 ma i ol = 0.25 ma i ol = 0.50 ma i ol = 0.75 ma i ol = 1.00 ma mcp121-450 v dd = 4.1v 1.950 1.970 1.990 2.010 2.030 2.050 2.070 2.090 2.110 0.00 0.25 0.50 0.75 1.00 i ol (ma) v oh (v) mcp102-195 v dd = 2.1v -40c +25c +85c +125c +70c 0c
? 2005 microchip technology inc. ds21906b-page 9 mcp102/103/121/131 note: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only; see figure 4-1 ), t a = -40c to +125c. figure 2-23: t rpd vs. temperature ( mcp102-195 ). figure 2-24: t rpd vs. temperature ( mcp131-315 ). figure 2-25: t rpd vs. temperature ( mcp121-450 ). figure 2-26: t rpu vs. temperature ( mcp102-195 ). figure 2-27: t rpu vs. temperature ( mcp131-315 ). figure 2-28: t rpu vs. temperature ( mcp121-450 ). 0 50 100 150 200 250 300 -40 -15 10 35 60 85 110 temperature (c) t rpd (s) v dd decreasing from: v trip(max) + 0.25v to v trip(min) - 0.25v v dd decreasing from: 5v - 1.7v v dd decreasing from: 5v - 0v mcp102-195 0 50 100 150 200 250 -40 -15 10 35 60 85 110 temperature (c) t rpd (s) v dd decreasing from: v trip(max) + 0.25v to v trip(min) - 0.25v v dd decreasing from: 5v - 2.7v v dd decreasing from: 5v - 0v mcp131-315 35 35.5 36 36.5 37 37.5 38 -40 -15 10 35 60 85 110 temperature (c) t rt (s) v dd increasing from: 0v - 5.0v v dd increasing from: 0v - 5.5v v dd increasing from: 0v - 4.6v v dd increasing from: 0v - 4.8v mcp121-450 100 110 120 130 140 150 160 -40 -15 10 35 60 85 110 temperature (c) t rpu (s) v dd increasing from: 0v - 2.1v v dd increasing from: 0v - 5.5v v dd increasing from: 0v - 2.8v v dd increasing from: 0v - 4.0v mcp102-195 100 110 120 130 140 150 160 -40 -15 10 35 60 85 110 temperature (c) t rpu (s) v dd increasing from: 0v - 4.5v v dd increasing from: 0v - 5.5v v dd increasing from: 0v - 3.3v v dd increasing from: 0v - 4.0v mcp131-315 110 115 120 125 130 135 140 145 -40 -15 10 35 60 85 110 temperature (c) t rpu (s) v dd increasing from: 0v - 4.8v v dd increasing from: 0v - 5.0v v dd increasing from: 0v - 5.5v mcp121-450
mcp102/103/121/131 ds21906b-page 10 ? 2005 microchip technology inc. note: unless otherwise indicated, all limits are specified for: v dd = 1v to 5.5v, r pu = 100 k ( mcp121 only; see figure 4-1 ), t a = -40c to +125c. figure 2-29: t rt vs. temperature ( mcp102-195 ). figure 2-30: t rt vs. temperature ( mcp131-315 ). figure 2-31: t rt vs. temperature ( mcp121-450 ). figure 2-32: transient duration vs. v trip (min) - v dd . figure 2-33: open-drain leakage current vs. voltage applied to v out pin ( mcp121-195 ). 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 -40 -15 10 35 60 85 110 temperature (c) t rt (s) v dd increasing from: 0v - 2.1v v dd increasing from: 0v - 5.5v v dd increasing from: 0v - 2.8v v dd increasing from: 0v - 4.0v mcp102-195 v dd increasing from: 0v - 5.0v 25 27 29 31 33 35 37 39 41 43 45 -40 -15 10 35 60 85 110 temperature (c) t rt (s) v dd increasing from: 0v - 5.0v v dd increasing from: 0v - 4.0v v dd increasing from: 0v - 5.5v v dd increasing from: 0v - 3.3v v dd increasing from: 0v - 4.5v mcp131-315 35 35.5 36 36.5 37 37.5 38 -40 -15 10 35 60 85 110 temperature (c) t rt (s) v dd increasing from: 0v - 5.0v v dd increasing from: 0v - 5.5v v dd increasing from: 0v - 4.6v v dd increasing from: 0v - 4.8v mcp121-450 0 200 400 600 800 1000 1200 1400 0.001 0.01 0.1 1 10 v trip (min) - v dd transient duration (s) mcp121-450 mcp102-195 mcp131-315 1.00e-13 1.00e-12 1.00e-11 1.00e-10 1.00e-09 1.00e-08 1.00e-07 1.00e-06 1.00e-05 1.00e-04 1.00e-03 1.00e-02 01234567891011121314 pull-up voltage (v) open-drain leakage (a) +125c +25c - 40c 10m 100 1m 10 1 10n 100n 1n 100p 1p 10p 100f
? 2005 microchip technology inc. ds21906b-page 11 mcp102/103/121/131 3.0 pin description the descriptions of the pins are listed in table 3-1. table 3-1: pin function table pin no. symbol function mcp102 mcp121 mcp131 mcp103 11rst output state v dd falling: h = v dd > v trip l = v dd < v trip v dd rising: h = v dd > v trip + v hys l = v dd < v trip + v hys 23v dd positive power supply 32v ss ground reference
mcp102/103/121/131 ds21906b-page 12 ? 2005 microchip technology inc. 4.0 application information for many of today?s microcontroller applications, care must be taken to prevent low-power conditions that can cause many different system problems. the most common causes are brown-out conditions, where the system supply drops below the operating level momen- tarily. the second most common cause is when a slowly decaying power supply causes the microcontroller to begin executing instructions without sufficient voltage to sustain volitile memory (ram), thus producing indeterminate results. figure 4-1 shows a typical application circuit. the mcp102/103/121/131 are voltage supervisor devices designed to keep a microcontroller in reset until the system voltage has reached and stabilized at the proper level for reliable system operation. these devices also operate as protection from brown-out conditions. figure 4-1: typical application circuit. 4.1 rst operation the rst output pin operation determines how the device can be used and indicates when the system should be forced into reset. to accomplish this, an internal voltage reference is used to set the voltage trip point (v trip ). additionally, there is a hysteresis on this trip point. when the falling edge of v dd crosses this voltage threshold, the reset power-down timer (t rpd ) starts. when this delay timer times out, the rst pin is forced low. when the rising-edge of v dd crosses this voltage threshold, the reset power-up timer (t rpu ) starts. when this delay timer times out, the rst pin is forced high, t rpu is active and there is additional system current. the actual voltage trip point (v tripac ) will be between the minimum trip point (v tripmin ) and the maximum trip point (v tripmax ). the hysteresis on this trip point and the delay timer (t rpu ) are to remove any ?jitter? that would occur on the rst pin when the device v dd is at the trip point. figure 4-2 shows the waveform of the rst pin as deter- mined by the v dd voltage, while table 4-1 shows the state of the rst pin. the v trip specification is for falling v dd voltages. when the v dd voltage is rising, the rst will not be driven high until v dd is at v trip + v hys . once v dd has crossed the voltage trip point, there is also a minimal delay time (t rpd ) before the rst pin is driven low. table 4-1: rst pin states figure 4-2: rst operation as determined by the v trip and v hys . v dd v dd mclr (reset input) (active-low) v ss picmicro ? microcontroller r pu note 1: resistor r pu may be required with the mcp121 due to the open-drain output . resistor r pu may not be required with the mcp131 due to the internal pull-up resistor. the mcp102 and mcp103 do not require the external pull-up resistor. 0.1 f mcp1xx v dd rst v ss state of rst pin when: device v dd < v trip v dd > v trip + v hys ouput driver mcp102 lhpush-pull mcp103 lhpush-pull mcp121 lh (1) open-drain (1) mcp131 lh (2) open-drain (2) note 1: requires external pull-up resistor 2: has internal pull-up resistor v dd v tripmax v tripmin v tripac v tripac v tripac + v hysac rst 1v < 1v is outside the device specifications t rpd t rpu t rpd t rpu
? 2005 microchip technology inc. ds21906b-page 13 mcp102/103/121/131 4.2 negative going v dd transients the minimum pulse width (time) required to cause a reset may be an important criteria in the implementa- tion of a power-on reset (por) circuit. this time is referred to as transient duration, defined as the amount of time needed for these supervisory devices to respond to a drop in v dd . the transient duration time is dependant on the magnitude of v trip ? v dd . generally speaking, the transient duration decreases with increases in v trip ? v dd . figure 4-3 shows a typical transient duration vs. reset comparator overdrive, for which the mcp102/103/121/131 will not generate a reset pulse. it shows that the farther below the trip point the transient pulse goes, the duration of the pulse required to cause a reset gets shorter. figure 2-32 shows the transient response characteristics for the mcp102/103/121/131. a 0.1 f bypass capacitor, mounted as close as possible to the v dd pin, provides additional transient immunity (refer to figure 4-1). figure 4-3: example of typical transient duration waveform. 4.3 reset power-up timer (t rpu ) figure 4-4 illustrates the device current states. while the system is powering down, the device has a low current. this current is dependent on the device v dd and trip point. when the device v dd rises through the voltage trip point (v trip ), an internal timer starts. this timer consumes additional current until the rst pin is driven (or released) high. this time is known as the reset power-up time (t rpu ). figure 4-4 shows when t rpu is active (device consuming additional current). figure 4-4: reset power-up timer waveform. 4.3.1 effect of temperature on reset power-up timer (t rpu ) the reset power-up timer time-out period (t rpu ) determines how long the device remains in the reset condition. this is affected by both v dd and temperature. typical responses for different v dd values and temperatures are shown in figures 2-26, 2-27 and 2-28. time (s) 0v supply voltage 5v v trip(min) - v dd t trans v trip(max) v trip(min) v trip v dd rst t rpu reset power-up timer inactive reset power-up timer inactive reset power-up timer active see figures 2-1, 2-2 and 2-3 see figures 2-4, 2-5 and 2-6 see figures 2-1 , 2-2 and 2-3
mcp102/103/121/131 ds21906b-page 14 ? 2005 microchip technology inc. 4.4 using in picmicro ? microcontroller, icsp? applications (mcp121 only) figure 4-5 shows the typical application circuit for using the mcp121 for voltage superviory function when the picmicro microcontroller will be programmed via the icsp feature. additional information is available in tb087, ?using voltage supervisors with picmicro ? microcontroller systems which implement in-circuit serial programming?? , ds91087. figure 4-5: typical application circuit for picmicro ? microcontroller with the icsp? feature. note: it is recommended that the current into the rst pin be current limited by a 1 k resistor. v dd /v pp v dd mclr (reset input) (active-low) v ss picmicro ? mcu r pu 0.1f 1k mcp121 v dd rst v ss
? 2005 microchip technology inc. ds21906b-page 15 mcp102/103/121/131 5.0 packaging information 5.1 package marking information 3-lead to-92 xxxxxx xxxxxx xxxxxx ywwnnn example: mcp102 195i to^^ 547256 legend: xx...x customer-specific information y year code (last digit of calendar year) ww week code (week of january 1 is week ?01?) nnn alphanumeric traceability code pb-free jedec designator for matte tin (sn) * this package is pb-free. the pb-free jedec designator ( ) can be found on the outer packaging for this package. note : in the event the full microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. 3 e 3 e 3 e 3-pin sot-23 part number mcp1xx = mcp102 mcp103 mcp121 mcp131 mcp1xx t-195i/tt jgnn tgnn lgnn kgnn mcp1xx t-240ett jhnn thnn lhnn khnn mcp1xx t-270e/tt jjnn tjnn ljnn kjnn mcp1xx t-300e/tt jknn tknn lknn kknn mcp1xx t-315e/tt jlnn tlnn llnn klnn mcp1xx t-450e/tt jmnn tmnn lmnn kmnn mcp1xx t-475e/tt jpnn tpnn lpnn kpnn example: xxnn
mcp102/103/121/131 ds21906b-page 16 ? 2005 microchip technology inc. package marking information (continued) part number mcp1xx = mcp102 mcp103 mcp121 mcp131 mcp1xx t-195i/lb bgn fgn dgn cgn mcp1xx t-240e/lb bhn fhn dhn chn mcp1xx t-270e/lb bjn fjn djn cjn mcp1xx t-300e/lb bkn fkn dkn ckn mcp1xx t-315e/lb bln fln dln cln mcp1xx t-450e/lb bmn fmn dmn cmn mcp1xx t-475e/lb bpn fpn dpn cpn 3-pin sc-70 top side example: bottom side xxn yww part number mcp1xx = mcp102 mcp103 mcp121 mcp131 mcp1xx t-195i/lb bgnn fgnn dgnn cgnn mcp1xx t-240e/lb bhnn fhnn dhnn chnn mcp1xx t-270e/lb bjnn fjnn djnn cjnn mcp1xx t-300e/lb bknn fknn dknn cknn mcp1xx t-315e/lb blnn flnn dlnn clnn mcp1xx t-450e/lb bmnn fmnn dmnn cmnn mcp1xx t-475e/lb bpnn fpnn dpnn cpnn top side example: xxnn or
? 2005 microchip technology inc. ds21906b-page 17 mcp102/103/121/131 3-lead plastic small outline transistor (tt) (sot-23) 10 5 0 10 5 0 mold draft angle bottom 10 5 0 10 5 0 mold draft angle top 0.51 0.44 0.37 .020 .017 .015 b lead width 0.18 0.14 0.09 .007 .006 .004 c lead thickness 10 5 0 10 5 0 foot angle 0.55 0.45 0.35 .022 .018 .014 l foot length 3.04 2.92 2.80 .120 .115 .110 d overall length 1.40 1.30 1.20 .055 .051 .047 e1 molded package width 2.64 2.37 2.10 .104 .093 .083 e overall width 0.10 0.06 0.01 .004 .002 .000 a1 standoff 1.02 0.95 0.88 .040 .037 .035 a2 molded package thickness 1.12 1.01 0.89 .044 .040 .035 a overall height 1.92 .076 p1 outside lead pitch (basic) 0.96 .038 p pitch 3 3 n number of pins max nom min max nom min dimension limits millimeters inches* units 2 1 p d b n e e1 l c a2 a a1 p1 * controlling parameter notes: dimensions d and e1 do not include mold flash or protrusions. mold flash or protrusions shall not exceed .010? (0.254mm) per side. jedec equivalent: to-236 drawing no. c04-104 significant characteristic
mcp102/103/121/131 ds21906b-page 18 ? 2005 microchip technology inc. 3-lead plastic small outline transistor (lb) (sc-70) 12 8 12 8 b mold draft angle bottom 12 8 12 8 a mold draft angle top 0.40 0.15 .016 .006 b lead width 0.25 0.08 .010 .003 c lead thickness 0.41 0.10 .016 .004 l foot length 2.25 1.80 .089 .071 d overall length 1.35 1.15 .053 .045 e1 molded package width 2.40 1.80 .094 .071 e overall width .010 0.00 .0004 .000 a1 standoff 1.00 0.80 .039 .031 a2 molded package thickness 1.10 0.80 .043 .031 a overall height 1.30 bsc. p1 outside lead pitch (basic) 0.65 bsc. p pitch 3 3 number of pins max min max min dimension limits millimeters* inches units shall not exceed .005" (0.127mm) per side. dimensions d and e1 do not include mold flash or protrusions. mold flash or protrusions notes: jeita (eiaj) equivalent: sc70 drawing no. c04-104 *controlling parameter l b e1 e p c p1 d 1 2 3 b a a a2 a1 .026 bsc. .051 bsc.
? 2005 microchip technology inc. ds21906b-page 19 mcp102/103/121/131 3-lead plastic transistor outline (to) (to-92) 4 3 2 4 3 2 mold draft angle bottom 6 5 4 6 5 4 0.56 0.48 0.41 .022 .019 .016 b lead width 0.51 0.43 0.36 .020 .017 .014 c lead thickness 2.41 2.29 2.16 .095 .090 .085 r molded package radius 4.95 4.64 4.32 .195 .183 .170 d overall length 4.95 4.71 4.45 .195 .186 .175 e1 overall width 3.94 3.62 3.30 .155 .143 .130 a bottom to package flat 1.27 .050 p pitch 3 3 n number of pins max nom min max nom min dimension limits millimeters inches* units r n 1 3 p l b a c 1 d 2 e1 tip to seating plane l .500 .555 .610 12.70 14.10 15.49 *controlling parameter mold draft angle top notes: dimensions d and e1 do not include mold flash or protrusions. mold flash or protrusions shall not exceed .010? (0.254mm) per side. jedec equivalent: to-92 drawing no. c04-101
mcp102/103/121/131 ds21906b-page 20 ? 2005 microchip technology inc. 5.2 product tape and reel specifications figure 5-1: embossed carrier dimensions (8, 12, 16 and 24 mm tape only) figure 5-2: 3-lead sot-23/sc70 d evice tape and reel specifications to p cover tape k 0 p w b 0 a 0 table 1: carrier tape/cavity dimensions case outline package type carrier dimensions cavity dimensions output quantity units reel diameter in mm w mm p mm a0 mm b0 mm k0 mm tt sot-23 3l 8 4 3.15 2.77 1.22 3000 180 lb sc-70 3l 8 4 2.4 2.4 1.19 3000 180 standard reel component orientation device marking pin 1 user direction of feed w p
? 2005 microchip technology inc. ds21906b-page 21 mcp102/103/121/131 figure 5-3: to-92 device tape and reel specifications device marking p seal tap e back tap e mark face user direction of feed w mark face mark face note: bent leads are for tape and reel only.
mcp102/103/121/131 ds21906b-page 22 ? 2005 microchip technology inc. notes:
? 2005 microchip technology inc. ds21906b-page 23 mcp102/103/121/131 appendix a: revision history revision b (march 2005) the following is the list of modifications: 1. added section 4.4 ?using in picmicro? microcontroller, icsp? applications (mcp121 only)? on using the mcp121 in picmicro microcontroller icsp applications. 2. added v odh specifications in section 1.0 ?electrical characteristics? (for icsp applications). 3. added figure 2-33. 4. updated sc-70 package markings and added pb-free marking information to section 5.0 ?packaging information? . 5. added appendix a: ?revision history? . revision a (august 2004) ? original release of this document.
mcp102/103/121/131 ds21906b-page 24 ? 2005 microchip technology inc. notes:
? 2005 microchip technology inc. ds21906b-page 25 mcp102/103/121/131 product identification system to order or obtain information, e. g., on pricing or delivery, refer to the factory or the listed sales office . device: mcp102: micropower voltage supervisor, push-pull mcp102t: micropower voltage supervisor, push-pull (tape and reel) mcp103: micropower voltage supervisor, push-pull mcp103t: micropower voltage supervisor, push-pull (tape and reel) mcp121 micropower voltage supervisor, open-drain mcp121t: micropower voltage supervisor, open-drain (tape and reel) mcp131 micropower voltage supervisor, open-drain mcp131t: micropower voltage supervisor, open-drain (tape and reel) monitoring options: 195 = 1.90v 240 = 2.32v 270 = 2.63v 300 = 2.93v 315 = 3.08v 450 = 4.38v 475 = 4.63v temperature range: i = -40c to +85c (mcp11x-195 only) e = -40c to +125c (except mcp11x-195 only) package: tt = sot-23b, 3-lead lb = sc-70, 3-lead to = to-92, 3-lead part no. xxx x temperature monitoring options device examples: a) mcp102t-195i/tt: tape and reel, 1.95v micropower voltage supervisor, push-pull, -40c to +85c, sot-23b-3 package. b) mcp102-300e/to: 3.00v micropower voltage supervisor, push-pull, -40c to +125c, to-92-3 package. a) mcp103t-270e/tt: tape and reel, 2.70v micropower voltage supervisor, push-pull, -40c to +125c, sot-23b-3 package. b) mcp103t-475e/lb: tape and reel, 4.75v micropower voltage supervisor, push-pull, -40c to +125c, sc-70-3 package. a) mcp121t-315i/lb: tape and reel, 3.15v micropower voltage supervisor, open-drain, -40c to +125c, sc-70-3 package. b) mcp121-300e/to: 3.00v micropower voltage supervisor, open-drain, -40c to +125c, to-92-3 package. a) mcp131t-195i/tt: tape and reel, 1.95v micropower voltage supervisor, open-drain, -40c to +85c, sot-23b-3 package. b) mcp131-300e/to: 3.00v micropower voltage supervisor, open-drain, -40c to +125c, to-92-3 package. range xx package x tape/reel option ? /
mcp102/103/121/131 ds21906b-page 26 ? 2005 microchip technology inc. notes:
? 2005 microchip technology inc. ds21906b-page 27 information contained in this publication regarding device applications and the like is prov ided only for your convenience and may be superseded by updates. it is your responsibility to ensure that your application m eets with your specifications. microchip makes no representations or war- ranties of any kind whether express or implied, written or oral, statutory or otherwise, related to the information, including but not limited to its condition, quality, performance, merchantability or fitness for purpose . microchip disclaims all liability arising from this information and its use. use of microchip?s products as critical components in life support systems is not authorized except with express written approval by microchip. no licenses are conveyed, implicitly or otherwise, under any microchip intellectual property rights. trademarks the microchip name and logo, the microchip logo, accuron, dspic, k ee l oq , micro id , mplab, pic, picmicro, picstart, pro mate, powersmart, rfpic, and smartshunt are registered trademarks of microchip technology incorporated in the u.s.a. and other countries. amplab, filterlab, migratable memory, mxdev, mxlab, picmaster, seeval, smartsensor and the embedded control solutions company are registered trademarks of microchip technology incorporated in the u.s.a. analog-for-the-digital age, app lication maestro, dspicdem, dspicdem.net, dspicworks, ecan, economonitor, fansense, flexrom, fuzzylab, in-circuit serial programming, icsp, icepic, mpasm, mplib, mplink, mpsim, pickit, picdem, picd em.net, piclab, pictail, powercal, powerinfo, powermate, powertool, rflab, rfpicdem, select mode, smart serial, smarttel, total endurance and wiperlock are trademarks of microchip technology incorporated in the u.s.a. and other countries. sqtp is a service mark of microchip technology incorporated in the u.s.a. all other trademarks mentioned herein are property of their respective companies. ? 2005, microchip technology incorporated, printed in the u.s.a., all rights reserved. printed on recycled paper. note the following details of the code protection feature on microchip devices: ? microchip products meet the specification cont ained in their particular microchip data sheet. ? microchip believes that its family of products is one of the most secure families of its kind on the market today, when used i n the intended manner and under normal conditions. ? there are dishonest and possibly illegal methods used to breach the code protection feature. all of these methods, to our knowledge, require using the microchip products in a manner outsi de the operating specifications c ontained in microchip?s data sheets. most likely, the person doing so is engaged in theft of intellectual property. ? microchip is willing to work with the customer who is concerned about the integrity of their code. ? neither microchip nor any other semiconductor manufacturer c an guarantee the security of their code. code protection does not mean that we are guaranteeing the product as ?unbreakable.? code protection is constantly evolving. we at microchip are committed to continuously improving the code protection features of our products. attempts to break microchip?s code protection feature may be a violation of the digital millennium copyright act. if such acts allow unauthorized access to your software or other copyrighted wo rk, you may have a right to sue for relief under that act. microchip received iso/ts-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in chandler and tempe, arizona and mountain view, california in october 2003. the company?s quality system processes and procedures are for its picmicro ? 8-bit mcus, k ee l oq ? code hopping devices, serial eeproms, microperipherals, nonvolatile memory and analog products. in addition, microchip?s quality system for the design and manufacture of development systems is iso 9001:2000 certified.
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