R3112x SERIES LOW VOLTAGE DETECTOR WITH OUTPUT DELAY NO. EA-087-120423 OUTLINE The R3112x Series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low supply current, which can be operated at an extremely low voltage and is used for system reset as an example. Each of these ICs consists of a voltage reference unit, a comparator, resistor net for detector threshold setting, an output driver, a hysteresis circuit, and an output delay circuit. The detector threshold is fixed with high accuracy internally and does not require any adjustment. Two output types, Nch open drain type and CMOS type are available. Three types of packages, SOT-23-5, small SC-82AB, SC-88A and ultra-small SON1612-6 can be selected so that high density mounting on boards is possible. FEATURES * * * * * * * * Built-in Output Delay Circuit............................................... Typ. 100ms with an external capacitor: 0.022F Supply Current ................................................................... Typ. 0.5A (R3112x27xA/C, VDD=2.6V) Operating Voltage .............................................................. 0.7 to 6.0V (Topt=25C) Detector Threshold............................................................. 0.9V to 5.0V (0.1V steps) Detector Threshold Accuracy............................................. 2.0% Temperature-Drift Coefficient of Detector Threshold ............Typ. 100ppm/C Output Types...................................................................... Nch Open Drain and CMOS Packages ........................................................................... SON1612-6, SC-82AB, SC-88A, SOT-23-5 APPLICATIONS * * * * * * CPU and Logic Circuit Reset Battery Checker Window Comparator Wave Shaping Circuit Battery Back-up Circuit Power Failure Detector 1 R3112x BLOCK DIAGRAMS R3112xxxxA R3112xxxxC OUT VDD VDD RD RD + + - - OUT Vref Vref GND GND CD CD SELECTION GUIDE The package type, the detector threshold, and the output type for the ICs can be selected at the users' request. Product Name Package Quantity per Reel Pb Free Halogen Free R3112Dxx1-TR-FE SON1612-6 4,000 pcs Yes Yes R3112Qxx1-TR-FE SC-82AB 3,000 pcs Yes Yes R3112Qxx2-TR-FE SC-88A 3,000 pcs Yes Yes R3112Nxx1-TR-FE SOT-23-5 3,000 pcs Yes Yes xx : The detector threshold can be designated in the range from 0.9V(09) to 5.0V(50) in 0.1V steps. : Designation of Output Type (A) Nch Open Drain (C) CMOS 2 R3112x PIN CONFIGURATION z SON1612-6 6 5 4 4 (mark side) 1 2 z SC-82AB 3 z SC-88A 5 (mark side) (mark side) 3 1 2 4 1 2 3 z SOT-23-5 5 4 (mark side) 1 2 3 PIN DESCRIPTION * * * * SON1612-6 Pin No Symbol Pin Description 1 OUT Output Pin (Output "L" at detection) 2 GND Ground Pin 3 CD Pin for External Capacitor (for setting output delay) 4 NC No Connection 5 GND 6 VDD Ground Pin Voltage Supply Pin SC-82AB Pin No Symbol 1 VDD 2 GND 3 CD 4 OUT Pin Description Voltage Supply Pin Ground Pin Pin for External Capacitor (for setting output delay) Output Pin (Output "L" at detection) SC-88A Pin No Symbol Pin Description 1 VDD Voltage Supply Pin 2 NC No Connection 3 GND 4 CD 5 OUT Ground Pin Pin for External Capacitor (for setting output delay) Output Pin (Output "L" at detection) SOT-23-5 Pin No Symbol Pin Description 1 OUT Output Pin (Output "L" at detection) 2 VDD Voltage Supply Pin 3 GND 4 NC No Connection 5 CD Pin for External Capacitor (for setting output delay) Ground Pin 3 R3112x ABSOLUTE MAXIMUM RATINGS Symbol VDD VOUT IOUT Item Rating Unit 6.5 V VSS-0.3 to VDD+0.3 V VSS-0.3 to 6.5 20 V Supply Voltage Output Voltage (CMOS) Output Voltage (Nch) Output Current Power Dissipation (SON1612-6) PD Power Dissipation (SC-82AB) 500 380 380 Power Dissipation (SC-88A) mA mW Power Dissipation (SOT-23-5) 420 Topt Operating Temperature Range -40 to 85 C Tstg Storage Temperature Range -55 to 125 C ) For Power Dissipation, please refer to PACKAGE INFORMATION. ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the permanent damages and may degrade the life time and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings is not assured. RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS) All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if when they are used over such conditions by momentary electronic noise or surge. And the semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions. 4 R3112x ELECTRICAL CHARACTERISTICS * Topt=25C R3112xxxxA/C Symbol Item -VDET Detector Threshold VHYS Detector Threshold Hysteresis Conditions -VDET<1.1V 1.1V -VDET<1.6V ISS Supply Current 1.6V -VDET<3.1V 3.1V -VDET<4.1V 4.1V -VDET VDDH VDDL Maximum Operating Voltage Minimum Operating Voltage Min. -VDET x0.98 -VDET x0.03 -VDET x0.05 Max. -VDET x1.02 -VDET x0.07 VDD=-VDET-0.1V 0.6 2.0 VDD=-VDET+1.0V 0.5 2.0 VDD=-VDET-0.1V 0.7 2.5 VDD=-VDET+1.0V 0.5 2.0 VDD=-VDET-0.1V 1.0 3.0 VDD=-VDET+1.0V 0.5 2.5 VDD=-VDET-0.1V 1.2 3.0 VDD=-VDET+1.0V 0.6 2.5 VDD=-VDET-0.1V 1.5 3.0 VDD=-VDET+1.0V 0.6 2.5 6.0 Topt=25C 0.7 -40CTopt85C 0.8 VDS=0.05V VDD=0.7V Output Current (Driver Output Pin) CD pin Threshold Voltage CD pin Output Current RD Output Delay Resistance -VDET/ Topt Detector Threshold Temperature Coefficient 0.9 0.05 1.1V -VDET<1.6V VDS=0.50V VDD=1.00V 0.2 1.8 1.6V -VDET VDS=0.50V VDD=1.50V 1.0 3.0 -VDET<4.0V VDS=-2.1V VDD=4.50V 1.5 3.5 4.0V -VDET VDS=-2.1V VDD=6.00V 2.0 4.5 VDD x0.3 VDD x0.5 20 70 VDD=-VDETx1.1V VDS=0.1V, VDD=0.7V ICD 0.12 VDS=0.50V VDD=0.85V Pch VTCD 0.01 -VDET<1.1V Nch IOUT Typ. V V A V V mA mA -VDET<1.1V VDS=0.50V, VDD=0.85V 10 400 1.1V -VDET<1.6V VDS=0.50V, VDD=1.00V 50 450 1.6V -VDET VDS=0.50V, VDD=1.50V 200 500 3.25 6.5 -40CTopt85C Unit 100 VDD x0.7 V A 13 M ppm/ C ) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less. (In the case of Nch Open Drain Type, Output pin is pulled up with a resistance of 470k to 5.0V.) 5 R3112x ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD Product Code R3112x09xA/C R3112x10xA/C R3112x11xA/C R3112x12xA/C R3112x13xA/C R3112x14xA/C R3112x15xA/C R3112x16xA/C R3112x17xA/C R3112x18xA/C R3112x19xA/C R3112x20xA/C R3112x21xA/C R3112x22xA/C R3112x23xA/C R3112x24xA/C R3112x25xA/C R3112x26xA/C R3112x27xA/C R3112x28xA/C R3112x29xA/C R3112x30xA/C R3112x31xA/C R3112x32xA/C R3112x33xA/C R3112x34xA/C R3112x35xA/C R3112x36xA/C R3112x37xA/C R3112x38xA/C R3112x39xA/C R3112x40xA/C R3112x41xA/C R3112x42xA/C R3112x43xA/C R3112x44xA/C R3112x45xA/C R3112x46xA/C R3112x47xA/C R3112x48xA/C R3112x49xA/C R3112x50xA/C 6 Detector Threshold Hysteresis Range -VDET[V] VHYS[V] Supply Current 1 Supply Current 2 Output Current 1 ISS1[A] ISS2[A] IOUT1[mA] Output Current 2 IOUT2[mA] CondiCondiCondiMin. Typ. Max. Min. Typ. Max. tions Typ. Max. tions Typ. Max. tions Min. Typ. Conditions Min. Typ. VDS= 0.882 0.900 0.918 0.027 0.045 0.063 0.5V 0.6 2.0 0.05 0.9 VDD= 0.980 1.000 1.020 0.030 0.050 0.070 0.85V 0.5 2.0 1.078 1.100 1.122 0.033 0.055 0.077 VDS= 1.176 1.200 1.224 0.036 0.060 0.084 0.5V 0.7 2.5 0.2 1.8 1.274 1.300 1.326 0.039 0.065 0.091 VDD= 1.372 1.400 1.428 0.042 0.070 0.098 1.0V 1.470 1.500 1.530 0.045 0.075 0.105 1.568 1.600 1.632 0.048 0.080 0.112 1.666 1.700 1.734 0.051 0.085 0.119 1.764 1.800 1.836 0.054 0.090 0.126 1.862 1.900 1.938 0.057 0.095 0.133 1.960 2.000 2.040 0.060 0.100 0.140 2.058 2.100 2.142 0.063 0.105 0.147 2.156 2.200 2.244 0.066 0.110 0.154 1.0 3.0 0.5 2.5 2.254 2.300 2.346 0.069 0.115 0.161 2.352 2.400 2.448 0.072 0.120 0.168 2.450 2.500 2.550 0.075 0.125 0.175 2.548 2.600 2.652 0.078 0.130 0.182 2.646 2.700 2.754 0.081 0.135 0.189 VDS= VDD= VDD= 2.744 2.800 2.856 0.084 0.140 0.196 0.05V 0.01 0.12 Nch -VDET -VDET VDD= 2.842 2.900 2.958 0.087 0.145 0.203 -0.1V +1.0V 0.7V 2.940 3.000 3.060 0.090 0.150 0.210 3.038 3.100 3.162 0.093 0.155 0.217 VDS= 3.136 3.200 3.264 0.096 0.160 0.224 0.5V 1.0 3.0 3.234 3.300 3.366 0.099 0.165 0.231 VDD= 3.332 3.400 3.468 0.102 0.170 0.238 1.5V 3.430 3.500 3.570 0.105 0.175 0.245 1.2 3.0 0.6 2.5 3.528 3.600 3.672 0.108 0.180 0.252 3.626 3.700 3.774 0.111 0.185 0.259 3.724 3.800 3.876 0.114 0.190 0.266 3.822 3.900 3.978 0.117 0.195 0.273 3.920 4.000 4.080 0.120 0.200 0.280 4.018 4.100 4.182 0.123 0.205 0.287 4.116 4.200 4.284 0.126 0.210 0.294 4.214 4.300 4.386 0.129 0.215 0.301 4.312 4.400 4.488 0.132 0.220 0.308 4.410 4.500 4.590 0.135 0.225 0.315 1.5 3.0 0.6 2.5 4.508 4.600 4.692 0.138 0.230 0.322 4.606 4.700 4.794 0.141 0.235 0.329 4.704 4.800 4.896 0.144 0.240 0.336 4.802 4.900 4.998 0.147 0.245 0.343 4.900 5.000 5.100 0.150 0.250 0.350 R3112x Output Current 3 Minimum Operating Voltage CD pin Threshold Voltage IOUT3[mA] VDDL[V] VTCD[V] CondiCondiCondiCondition Min. Typ. tion Max. tion Max. tion Min. 0.297 0.330 VDS= -2.1V 1.5 VDD= 4.5V 3.5 Topt= 25C Pch VDS= -2.1V 2.0 VDD= 6.0V 4.5 0.363 0.396 0.429 0.462 0.495 0.528 0.561 0.594 0.627 0.660 0.693 0.726 0.759 0.792 0.825 0.858 -40C 0.891 < VDD= = 0.924 0.7 Topt 0.8 (-VDET) 0.957 < x1.1V = 0.990 85C 1.023 1.056 1.089 1.122 1.155 1.188 1.221 1.254 1.287 1.320 1.353 1.386 1.419 1.452 1.485 1.518 1.551 1.584 1.617 1.650 CD pin Output Current 1 CD pin Output Current 2 Resistance for Output Delay Detector Threshold Temperature -VDET/ Topt [ppm/C] CondiCondiCondiTyp. Max. tion Min. Typ. tion Min. Typ. Min. Typ. Max. tion Typ. VDS= 0.495 0.693 0.5V 10 400 VDD= 0.550 0.770 0.85V 0.605 0.847 VDS= 0.660 0.924 0.5V 50 450 0.715 1.001 VDD= 0.770 1.078 1.0V 0.825 1.155 0.880 1.232 0.935 1.309 0.990 1.386 1.045 1.463 1.100 1.540 1.155 1.617 1.210 1.694 1.265 1.771 1.320 1.848 1.375 1.925 1.430 2.002 -40C 1.485 2.079 VDS= < = 1.540 2.156 0.1V 3.25 6.5 13.0 Topt 100 20 70 1.595 2.233 VDD= < = 1.650 2.310 0.7V 85C 1.705 2.387 VDS= 1.760 2.464 0.5V 200 500 1.815 2.541 VDD= 1.870 2.618 1.5V 1.925 2.695 1.980 2.772 2.035 2.849 2.090 2.926 2.145 3.003 2.200 3.080 2.255 3.157 2.310 3.234 2.365 3.311 2.420 3.388 2.475 3.465 2.530 3.542 2.585 3.619 2.640 3.696 2.695 3.773 2.750 3.850 ICD1[A] ICD2[A] RD[M] 7 R3112x OPERATION VDD Ra RD Comparator - Pch Schmitt Trigger + Current Source OUT Tr.2 Rb Tr.1 Vref Nch Rc GND Output Capacitor CD Fig. 1 Block Diagram with an external capacitor 1 2 3 4 5 Step Released Voltage +VDET Detector Threshold -VDET A Detector Threshold Hysteresis B Supply Voltage (VDD) 1 2 3 4 5 Comparator (-) Pin Input Voltage I II II II I Comparator Output L H Indefinite H L Minimum Operating Voltage VDDL GND Tr.1,2 Output Tr. Output Voltage (VOUT) I Detect Delay Time tPHL tD GND II OFF ON Indefinite ON OFF Pch ON OFF Indefinite OFF ON Nch OFF ON Indefinite ON OFF Rb+Rc xVDD Ra+Rb+Rc Rb Ra+Rb xVDD Fig. 2 Operation Diagram 1. Output voltage is equal to supply voltage. (As for Nch open drain type, equal to pull-up voltage.) 2. When the supply voltage is down to the detector threshold voltage level(Point A), VrefVDDx(Rb+Rc)/(Ra+Rb+Rc) is true, then output of the comparator is reversed from "L" to "H", therefore output voltage becomes GND level. 3. When the supply voltage is lower than minimum operating voltage, the operation of output transistor is indefinite. In the case of Nch open drain type, output voltage is equal to pull-up voltage. 4. Output Voltage becomes GND level. 5. When the supply voltage is higher than released voltage (Point B), VrefVDDxRb/(Ra+Rb) is true, then output of the comparator reaches the threshold level, and Output of Shmitt Trigger is reversed from "H" to "L", then output voltage is equal to supply voltage. (As for Nch open drain type, equal to pull-up voltage.) ) The difference between released voltage and detector threshold voltage means hysteresis range voltage. 8 R3112x * Operation of Output Delay Released Voltage (+VDET) Supply Voltage CD Pin Threshold Voltage (VTCD) Capacitor Voltage GND Output Voltage GND Output Delay Time(tD) When the supply voltage which is higher than released voltage is forced to VDD pin, charge to an external capacitor starts, then capacitor voltage increases. Until the capacitor voltage reaches to CD Pin threshold voltage, output voltage maintains "L". When the capacitor voltage becomes higher than CD pin threshold voltage, output voltage is reversed from "L" to "H". Where, the time interval between the rising edge of supply voltage and output voltage reverse point means output delay time. * Output Delay Time Output Delay Time (tD) can be calculated with the next formula. tD=0.69xRDxCD(s) RD is internal resistor and set at 6.5M(Typ.) typically. CD(F) describes the capacitance value of an external capacitor. Therefore, tD=0.69x6.5x106xCD(s) 9 R3112x TEST CIRCUITS Pull-up circuit is not necessary for CMOS Output type, or R3112xxxxC. ISS +5V or VDD VDD VDD R3112x VIN 470k R3112x VIN OUT GND GND Supply Current Test Circuit Detector Threshold Test Circuit VDD VDD IOUT IOUT R3112x VIN R3112x VIN OUT OUT VDS GND VDD+VDS GND Nch Driver Output Current Test Circuit Pch Driver Output Current Test Circuit Apply only to CMOS +5V or VDD VDD CD VIN R3112x VDS VDD 470k ICD VIN OUT CD R3112x VDS GND GND CD Pin Threshold Test Circuit CD Pin Output Current Test Circuit +VDET+2.0V or 0.6V Input Voltage (VDD) 0.7V GND +5V 100% Output Voltage (VOUT) VDD 50% VIN R3112x CD GND GND tPHL tD Output Delay Time Test Circuit 10 CD 470k OUT R3112x TYPICAL CHARACTERISTICS 1) Supply Current vs. Input Voltage R3112x09xA/C R3112x13xA/C 1.5 Supply Current Iss(A) Supply Current Iss(A) 1.5 1.2 Topt=85C 25C 0.9 0.6 -40C 0.3 0 1.2 Topt=85C 0.9 25C 0.6 -40C 0.3 0 0 1 2 3 4 5 6 7 0 1 Input Voltage VIN(V) 3 4 5 6 7 Input Voltage VIN(V) R3112x27xA/C R3112x45xA/C 2.0 Supply Current Iss(A) 1.5 Supply Current Iss(A) 2 1.2 0.9 25C Topt=85C 0.6 0.3 -40C 1.6 1.2 25C Topt=85C 0.8 0.4 -40C 0 0 0 1 2 3 4 5 6 7 0 Input Voltage VIN(V) 1 2 3 4 5 6 7 Input Voltage VIN(V) 2) Detector Threshold vs. Temperature R3112x13xA/C 0.96 +VDET 0.94 0.92 -VDET 0.90 0.88 0.86 -50 -25 0 25 50 Temperature Topt(C) 75 100 Detector Threshold/Released Voltage VDET(V) Detector Threshold/Released Voltage VDET(V) R3112x09xA/C 0.98 1.42 1.40 1.38 +VDET 1.36 1.34 1.32 -VDET 1.30 1.28 1.26 -50 -25 0 25 50 75 100 Temperature Topt(C) 11 R3112x R3112x45xA/C +VDET 2.85 2.80 2.75 -VDET 2.70 2.65 2.60 -50 -25 0 25 50 75 100 Detector Threshold/Released Voltage VDET(V) Detector Threshold/Released Voltage VDET(V) R3112x27xA/C 2.90 4.75 +VDET 4.70 4.65 4.60 4.55 -VDET 4.50 4.45 4.40 4.35 -50 -25 Temperature Topt(C) 0 25 50 75 100 Temperature Topt(C) 3) Output Voltage vs. Input Voltage R3112x09xA/C 0.8 0.6 Topt=-40C 0.4 25C 85C 0.2 5V pull up via 470k 6.0 Output Voltage VOUT(V) 1.0 Output Voltage VOUT(V) R3112x09xA Nch Output Type: VDD pull up 0.0 Topt=-40C 5.0 25C 4.0 85C 3.0 2.0 1.0 0.0 0 0.2 0.4 0.6 0.8 1 0 Input Voltage VIN(V) 0.8 1 0.9 Topt=-40C 25C 0.3 85C 5V pull up via 470k 6.0 Output Voltage VOUT(V) Output Voltage VOUT(V) 1.2 0 Topt=-40C 5.0 25C 4.0 85C 3.0 2.0 1.0 0.0 0 0.3 0.6 0.9 Input Voltage VIN(V) 12 0.6 R3112x13xA Nch Output Type: VDD pull up 0.6 0.4 Input Voltage VIN(V) R3112x13xA/C 1.5 0.2 1.2 1.5 0 0.3 0.6 0.9 Input Voltage VIN(V) 1.2 1.5 R3112x R3112x27xA/C 2.5 2.0 1.5 Topt=-40C 1.0 25C 0.5 0.0 0.0 85C 0.5 1.0 1.5 2.0 2.5 5V pull up via 470k 6.0 Output Voltage VOUT(V) 3.0 Output Voltage VOUT(V) R3112x27xA Nch Output Type: VDD pull up Topt=-40C 5.0 25C 4.0 85C 3.0 2.0 1.0 0.0 0.0 3.0 Input Voltage VIN(V) Output Voltage VOUT(V) Output Voltage VOUT(V) 4.0 3.5 3.0 2.5 2.0 1.0 0.5 25C 2.0 2.5 3.0 5V pull up via 470k 6.0 4.5 Topt=-40C 1.5 R3112x45xA Nch Output Type: VDD pull up 1.5 1.0 Input Voltage VIN(V) R3112x45xA/C 5.0 0.5 Topt=-40C 5.0 25C 4.0 85C 3.0 2.0 1.0 85C 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Input Voltage VIN(V) Input Voltage VIN(V) 4) Nch Driver Output Current vs. VDS R3112x09xA/C 1.2 VDD=0.85V 1.0 0.8 0.6 0.7V 0.4 0.2 0 Topt=25C 2.5 Output Current IOUT(mA) Output Current IOUT(mA) R3112x13xA/C Topt=25C VDD=1.0V 2.0 1.5 0.85V 1.0 0.5 0.7V 0 0 0.2 0.4 0.6 VDS(V) 0.8 1 0 0.2 0.4 0.6 0.8 1 VDS(V) 13 R3112x R3112x27xA/C R3112x45xA/C Topt=25C VDD=2.5V 16 2.0V 12 8 1.5V 4 1.0V Topt=25C 20 Output Current IOUT(mA) Output Current IOUT(mA) 20 0 VDD=4.0V VDD=3.5V 16 VDD=3.0V VDD=2.5V 2.0V 12 8 1.5V 4 1.0V 0 0 0.5 1 1.5 2 2.5 0 0.5 1 VDS(V) 1.5 2 2.5 3 3.5 4 VDS(V) 5) Nch Driver Output Current vs. Input Voltage R3112x09xA/C R3112x13xA/C 5 Output Current IOUT(mA) Output Current IOUT(mA) 2.0 1.5 1.0 Topt=25C 0.5 85C -40C 4 Topt=-40C 3 25C 2 85C 1 0 0.0 0 0.2 0.4 0.6 0.8 1 0 0.3 Input Voltage VIN(V) R3112x27xA/C 1.2 1.5 R3112x45xA/C 5 Topt=-40C 4 Output Current IOUT(mA) Output Current IOUT(mA) 0.9 Input Voltage VIN(V) 5 25C 3 85C 2 1 0 Topt=-40C 25C 4 85C 3 2 1 0 0 0.5 1 1.5 2 Input Voltage VIN(V) 14 0.6 2.5 3 0 1 2 3 Input Voltage VIN(V) 4 5 R3112x 6) Pch Driver Output Current vs. Input Voltage R3112x09xC R3112x13xC Topt=25C VDS=-2.1V 5 4 3 -1.5V 2 -1.0V 1 -0.5V 0 VDS=-2.1V 5 4 3 -1.5V 2 -1.0V 1 -0.5V 0 0 1 2 3 4 5 6 7 0 1 2 3 4 5 Input Voltage VIN(V) Input Voltage VIN(V) R3112x27xC R3112x45xC Topt=25C VDS=-2.1V 5 4 3 -1.5V 2 -1.0V 1 -0.5V 0 6 7 Topt=25C 6 Output Current IOUT(mA) 6 Output Current IOUT(mA) Topt=25C 6 Output Current IOUT(mA) Output Current IOUT(mA) 6 VDS=-2.1V 5 4 3 -1.5V 2 -1.0V 1 -0.5V 0 0 1 2 3 4 5 6 7 0 1 2 Input Voltage VIN(V) 3 4 5 6 7 Input Voltage VIN(V) 7) CD Pin Threshold Voltage vs. Temperature R3112x13xA/C VDD=0.99V 0.8 0.7 0.6 0.5 0.4 0.3 0.2 -50 -25 0 25 50 Temperature Topt(C) 75 100 CD Pin Threshold Voltage VTCD(V) CD Pin Threshold Voltage VTCD(V) R3112x09xA/C VDD=1.43V 1.0 0.9 0.8 0.7 0.6 0.5 0.4 -50 -25 0 25 50 75 100 Temperature Topt(C) 15 R3112x R3112x45xA/C VDD=2.97V 1.9 1.8 1.7 1.6 1.5 1.4 1.3 -50 -25 0 25 50 75 100 VDD=4.95V 2.9 CD Pin Threshold Voltage VTCD(V) CD Pin Threshold Voltage VTCD(V) R3112x27xA/C 2.8 2.7 2.6 2.5 2.4 2.3 -50 Temperature Topt(C) -25 0 25 50 75 100 Temperature Topt(C) 8) CD Pin Output Current vs. Input Voltage R3112x13xA/C VDS=0.5V 1.0 CD Pin Output Current ICD(mA) CD Pin Output Current ICD(mA) R3112x09xA/C 0.8 Topt=-40C 0.6 25C 0.4 85C 0.2 0 0 0.2 0.4 0.6 0.8 VDS=0.5V 1.0 0.8 Topt=-40C 0.6 25C 0.4 85C 0.2 1 0 0 0.3 Input Voltage VIN(V) Topt=-40C 0.6 25C 0.4 85C 0.2 0 1 1.5 2 Input Voltage VIN(V) 16 CD Pin Output Current ICD(mA) CD Pin Output Current ICD(mA) 1.0 0.5 1.2 1.5 R3112x45xA/C VDS=0.5V 0 0.9 Input Voltage VIN(V) R3112x27xA/C 0.8 0.6 2.5 3 VDS=0.5V 1.0 0.8 Topt=-40C 0.6 25C 0.4 85C 0.2 0 0 1 2 3 Input Voltage VIN(V) 4 5 R3112x R3112x13xA/C Topt=25C 0.7 CD Pin Output Current ICD(mA) CD Pin Output Current ICD(mA) 9) CD Pin Output Current vs. VDS (Topt=25C) R3112x09xA/C VDD=0.85V 0.6 0.5 0.4 0.3 0.7V 0.2 0.1 0 0 0.2 0.4 0.6 0.8 Topt=25C 1.0 VDD=1.0V 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 1 0.85V 0.7V 0 0.2 0.4 VDS(V) 3.0 VDD=2.5V 2.5 2.0 2.0V 1.5 1.5V 1.0 1.0V 0 0 0.5 1 0.8 1 R3112x45xA/C Topt=25C 1.5 2 CD Pin Output Current ICD(mA) CD Pin Output Current ICD(mA) R3112x27xA/C 0.5 0.6 VDS(V) Topt=25C 4.5 VDD=4.0V 4.0 3.5 3.5V 3.0 3.0V 2.5 2.5V 2.0 2.0V 1.5 1.5V 1.0 0.5 1.0V 0 2.5 0 0.5 VDS(V) 1 1.5 2 2.5 3 3.5 4 VDS(V) 10) Output Delay Time vs. External Capacitance (Topt=25C) R3112x09xA/C R3112x13xA/C Topt=25C 100 tD 10 1 0.1 Topt=25C 1000 Output Delay tx(ms) Output Deley Time tx(ms) 1000 100 tD 10 1 0.1 tPHL 0.01 0.0001 0.001 0.01 External Capacitance CD(F) tPHL 0.1 0.01 0.0001 0.001 0.01 0.1 External Capacitance CD(F) 17 R3112x R3112x27xA/C R3112x45xA/C Topt=25C 100 tD 10 1 0.1 tPHL 0.01 0.0001 0.001 0.01 0.1 External Capacitance CD(F) Delay Circuit Resistance RD(M) R3112xxxxA/C 13 12 11 10 9 8 7 6 5 4 -25 0 25 50 Temperature Topt(C) 18 75 100 tD 10 1 0.1 0.01 0.0001 tPHL 0.001 0.01 External Capacitance CD(F) 11) Delay Circuit Resistance vs. Temperature 3 -50 Topt=25C 1000 Output Delay Time tx(ms) Output Delay Time tx(ms) 1000 100 0.1 R3112x TECHNICAL NOTES VDD VDD R R1 VDD VDD R3112x VDD R1 R2 OUT GND Figure A R3112x GND Figure B VDD OUT R2 R3112x OUT GND Figure C When R3112xxxxA (Nch open drain output type) is used in Figure A or Figure B, if impedance of voltage supply pIn, VDD and VDD of this IC is large, detector threshold level would shift by voltage dropdown caused by the consumption current of the IC itself. Released voltage may also shift and delay time for start-up might be generated by this usage. When R3112xxxxC (CMOS output type) is used in Figure A or Figure B, Output level could be unstable by cross conduction current which is generated at detector threshold level or at released voltage level, therefore, do not use R3112xxxxC with the connection in Figure A or Figure B. The connection in Figure C may cause the oscillation in both R3112xxxxC (CMOS Output) and R3112xxxxA (Nch Open Drain Output), therefore do not use R3112xxxxA/C Series with the connection in Figure C. 19 1. The products and the product specifications described in this document are subject to change or discontinuation of production without notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to Ricoh sales representatives for the latest information thereon. 2. The materials in this document may not be copied or otherwise reproduced in whole or in part without prior written consent of Ricoh. 3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or otherwise taking out of your country the products or the technical information described herein. 4. The technical information described in this document shows typical characteristics of and example application circuits for the products. The release of such information is not to be construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual property rights or any other rights. 5. The products listed in this document are intended and designed for use as general electronic components in standard applications (office equipment, telecommunication equipment, measuring instruments, consumer electronic products, amusement equipment etc.). 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