LOW VOLTAGE DETECTOR RN5VS SERIES APPLICATION MANUAL ELECTRONIC DEVICES DIVISION NO.EA-037-9701 NOTICE 1. The products and the product specifications described in this application manual 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. This application manual 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 application manual shows typical characteristics of and example application circuits for the products. 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June 1995 RN5VS SERIES APPLICATION MANUAL CONTENTS OUTLINE ......................................................................................................1 FEATURES....................................................................................................1 APPLICATIONS .............................................................................................1 BLOCK DIAGRAMS .......................................................................................2 TIME CHART .................................................................................................2 DEFINITION OF OUTPUT DELAY TIME tplh ....................................................2 SELECTION GUIDE .......................................................................................4 PIN CONFIGURATION ...................................................................................5 PIN DESCRIPTION ........................................................................................5 ABSOLUTE MAXIMUM RATINGS ...................................................................6 ELECTRICAL CHARACTERISTICS.................................................................7 ELECTRICAL CHARACTERITICS BY DETECTOR THRESHOLD ....................10 OPERATION ................................................................................................14 TEST CIRCUITS ...........................................................................................15 TYPICAL CHARACTERISTICS......................................................................16 1) Supply Current vs. Input Voltage ...........................................................................16 2) Detector Threshold vs. Temperature .......................................................................16 3) Output Voltage vs. Input Voltage ...........................................................................17 4) Nch Driver Output Current vs. VDS .........................................................................18 5) Nch Driver Output Current vs. Input Voltage................................................................19 6) Pch Driver Output Current vs. Input Voltage ................................................................20 7) Output Delay Time vs. Load Capacitance ..................................................................20 8) Output Delay Time vs. Input Pin Capacitance ..............................................................21 TYPICAL APPLICATIONS ............................................................................22 • RN5VS××A CPU Reset Circuit(Nch Open Drain Output) ....................................................22 • RN5VS××C CPU Reset Circuit(CMOS Output) .............................................................22 • RN5VS××A Output delay Time Circuit 1.....................................................................22 • RN5VS××A Output delay Time Circuit 2.....................................................................22 • Memory Back-up Circuit .....................................................................................22 • Voltage Level Indicator Circuit (lighted when the power runs out) ............................................23 • Detector Threshold Changing Circuit ........................................................................23 • Window Comparator Circuit .................................................................................23 • Excessive Charge Preventing Circuit ........................................................................23 PACKAGE DIMENSIONS ..............................................................................25 TAPING SPECIFICATIONS ...........................................................................25 LOW VOLTAGE DETECTOR R N5VS SERIES OUTLINE The RN5VS Series are voltage detector ICs with high detector threshold accuracy and ultra-low supply current by CMOS process, which can be operated at an extremely low voltage and is used, for instance, for system reset. Each of these ICs consists of a voltage reference unit, a comparator, resistors for voltage detection, an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy. The RN5VS Series are operable by a lower voltage than that for the R× 5VL Series, and can be driven by a single battery. Two output types, Nch open drain type and CMOS type, are available. Since the package for these ICs are SOT-23-5 (Mini-mold) package, high density mounting of the ICs on board is possible. FEATURES • Ultra-low Supply Current ............................TYP. 0.8µA (VDD=1.5V) • Broad Operating Voltage Range .................. 0.7V to 10.0V (Topt =25˚C) • Detector Threshold ........................................Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible (refer to Selection Guide). • High Accuracy Detector Threshold ..............±3.0% • Low Temperature-Drift Coefficien of Detector Threshold ..............TYP. ±100ppm/˚C • Two Output Types .........................................Nch Open Drain and CMOS • Packages.........................................................SOT-23-5 (Mini-mold) APPLICATIONS • CPU & Logic Circuit Reset • Battery Checker • Window Comparator • Wave Shaping Circuit • Battery Back-Up Circuit • Power Failure Detector RN5VS BLOCK DIAGRAMS • Nch Open Drain Output (RN5VS×× A) • CMOS Output (RN5VS×× C) VDD VDD 2 2 OUT 1 + + – – OUT 1 Vref Vref 3 3 GND GND TIME CHART Supply Voltage (VDD) Released Voltage Detected Voltage +VDET –VDET Detector Threshold Hysteresis Minimum Operating Voltage GND Output Voltage (OUT) GND tPLH DEFINITION OF OUTPUT DELAY TIME tplh +VDET + 2.0V +VDET + 2.0V Input Voltage (VDD) Input Voltage (VDD) 0.7V 0.7V GND GND +VDET +2.0V 5.0V Output Voltage Output Voltage +VDET + 2.0V 2 2.5V GND GND tPHL tPLH Nch Open Drain Output tPHL tPLH CMOS Output RN5VS Output Delay Time tPLH is defined as follows: 1. In the case of Nch Open Drain Output: When the time at which a pulse voltage which increases from 0.7V to +VDET+2.0V is applied to VDD is Time A, and the time at which the output voltage reaches 2.5V under the conditions that the output pin (OUT) is pulled up to 5V by a resistor of 470kΩ is Time B, the time period from Time A through Time B. 2. In the case of CMOS Output: When the time at which a pulse voltage which increases from 0.7V to +VDET+2.0V is applied to VDD is Time A, and the time at which the output voltage reaches the voltage of (+VDET+2.0V)/2 is Time B, the time period from Time A through Time B. RN5VS SELECTION GUIDE The detector threshold, the output type, the packing type, and the taping type of RN5VS series can be designating at the user's request by specifying the part number as follows: } RN5VS×× × × – × → Part Number ↑ ↑↑ ↑ a bc d Code Contents a Setting Detector Threshold (–VDET): Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible. b Designation of Output Type: A: Nch Open Drain C: CMOS c Designation of Packing Type: A: Taping C: Antistatic bag for samples d Designation of Taping Type: Ex. TR, TL (refer to Taping Specifications, the standard direction is TR.) For example, the product with Detector Threshold 3.5V, Output Type Nch Open Drain and Taping Type TR, is designated by Part Number RN5VS35AA-TR. RN5VS PIN CONFIGURATION • SOT-23-5 5 4 (mark side) 1 2 3 PIN DESCRIPTION • SOT-23-5 Pin No. Symbol 1 OUT 2 VDD 3 GND 4 NC 5 NC RN5VS ABSOLUTE MAXIMUM RATINGS Symbol Item VDD Supply Voltage VOUT Output Voltage IOUT PD Topt=25˚C Rating Unit +12 V CMOS VSS–0.3 to VDD+0.3 Nch VSS–0.3 to +12 V Output Current 70 mA Power Dissipation 150 mW Topt Operating Temperature Range –40 to +85 ˚C Tstg Storage Temperature Range –55 to +125 ˚C Tsolder Lead Temperature (Soldering) 260˚C,10s ABSOLUTE MAXIMUM RATINGS Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress ratings only and do not necessarily imply functional operation below these limits. RN5VS ELECTRICAL CHARACTERISTICS • RN5VS09A/C Symbol Topt=25˚C Item Conditions MIN. TYP. MAX. Unit –VDET Detector Threshold 0.873 0.900 0.927 V VHYS Detector Threshold Hysteresis 0.018 0.045 0.072 V VDD=0.80V 0.8 2.4 VDD=2.90V 0.9 2.7 ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage 10 Nch IOUT Output Current Topt=25˚C 0.55 0.70 – 40˚C≤Topt≤85˚C 0.65 0.80 VDS=0.05V,VDD=0.70V 0.01 0.05 VDS=0.50V,VDD=0.85V 0.05 0.50 1.0 2.0 Pch VDS=–2.1V,VDD=4.5V tPLH ∆– VDET ∆Topt Output Delay Time –40˚C≤Topt≤85˚C µA V V mA ±100 µs Topt=25˚C Item Conditions MIN. TYP. MAX. Unit –VDET Detector Threshold 1.746 1.800 1.854 V VHYS Detector Threshold Hysteresis 0.036 0.090 0.144 V VDD=1.70V 0.8 2.4 VDD=3.80V 1.0 3.0 ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage 10 Nch IOUT Output Current Topt=25˚C 0.55 0.70 –40˚C≤Topt≤85˚C 0.65 0.80 VDS=0.05V,VDD=0.70V 0.01 0.05 VDS=0.50V,VDD=1.50V 1.00 2.00 1.0 2.0 Pch VDS=–2.1V,VDD=4.5V tPLH ∆– VDET ∆Topt Note 2 ppm/˚C • RN5VS18A/C Symbol Note 1 mA 100 Detector Threshold Temperature Coefficient Note Output Delay Time Detector Threshold Temperature Coefficient ±100 µA V V Note 1 mA mA 100 –40˚C≤Topt≤85˚C Note µs ppm/˚C Note 2 RN5VS • RN5VS27A/C Symbol Topt=25˚C Item Conditions MIN. TYP. MAX. Unit –VDET Detector Threshold 2.619 2.700 2.781 V VHYS Detector Threshold Hysteresis 0.054 0.135 0.216 V VDD=2.60V 0.9 2.7 VDD=4.70V 1.1 3.3 ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage 10 Nch IOUT Output Current Topt=25˚C 0.55 0.70 –40˚C≤Topt≤85˚C 0.65 0.80 VDS=0.05V,VDD=0.70V 0.01 0.05 VDS=0.50V,VDD=1.50V 1.00 2.00 1.0 2.0 Pch VDS=–2.1V,VDD=4.5V tPLH ∆– VDET ∆Topt Output Delay Time –40˚C≤Topt≤85˚C µA V V mA ±100 µs Topt=25˚C Item Conditions MIN. TYP. MAX. Unit –VDET Detector Threshold 3.492 3.600 3.708 V VHYS Detector Threshold Hysteresis 0.072 0.180 0.288 V VDD=3.47V 1.0 3.0 VDD=5.60V 1.2 3.6 ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage 10 Nch IOUT Output Current Topt=25˚C 0.55 0.70 –40˚C≤Topt≤85˚C 0.65 0.80 VDS=0.05V,VDD=0.70V 0.01 0.05 VDS=0.50V,VDD=1.50V 1.00 2.00 1.0 2.0 Pch VDS=–2.1V,VDD=4.5V tPLH ∆– VDET ∆Topt Note 2 ppm/˚C • RN5VS36A/C Symbol Note 1 mA 100 Detector Threshold Temperature Coefficient Note Output Delay Time Detector Threshold Temperature Coefficient ±100 µA V V Note 1 mA mA 100 –40˚C≤Topt≤85˚C Note µs ppm/˚C Note 2 RN5VS • RN5VS45A/C Symbol Topt=25˚C Item Conditions MIN. TYP. MAX. Unit –VDET Detector Threshold 4.365 4.500 4.635 V VHYS Detector Threshold Hysteresis 0.090 0.225 0.360 V VDD=4.34V 1.1 3.3 VDD=6.50V 1.3 3.9 ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage 10 Nch IOUT Output Current Topt=25˚C 0.55 0.70 – 40˚C≤Topt≤85˚C 0.65 0.80 VDS=0.05V,VDD=0.70V 0.01 0.05 VDS=0.50V,VDD=1.50V 1.00 2.00 1.5 3.0 Pch VDS=–2.1V,VDD=8.0V tPLH ∆–VDET ∆Topt Output Delay Time –40˚C≤Topt≤85˚C µA V V mA ±100 µs Topt=25˚C Item Conditions MIN. TYP. MAX. Unit –VDET Detector Threshold 5.238 5.400 5.562 V VHYS Detector Threshold Hysteresis 0.108 0.270 0.432 V VDD=5.20V 1.2 3.6 VDD=7.40V 1.4 4.2 ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage 10 Nch IOUT Output Current Topt=25˚C 0.55 0.70 –40˚C≤Topt≤85˚C 0.65 0.80 VDS=0.05V,VDD=0.70V 0.01 0.05 VDS=0.50V,VDD=1.50V 1.00 2.00 1.5 3.0 Pch VDS=–2.1V,VDD=8.0V tPLH ∆–VDET ∆ Topt (Note 1) (Note 2) Note 2 ppm/˚C • RN5VS54A/C Symbol Note 1 mA 100 Detector Threshold Temperature Coefficient Note Output Delay Time Detector Threshold Temperature Coefficient ±100 µA V V Note 1 mA mA 100 –40˚C≤Topt≤85˚C Note µs Note 2 ppm/˚C Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of Nch Open Drain Type Products, the pull-up resistance is set at 470kΩ, and the pull-up voltage is set at 5.0V. Refer to the previously defined “Output Delay Time tPLH”. RN5VS ELECTRICAL CHARACTEISTICS BY DETECTOR THRESHOLD • RN5VS09A/C to RN5VS39A/C Detector Threshold Detector Threshold Hysteresis Supply Current 1 Supply Current 2 –Vdet(V) Vhys(V) Iss(µA) Iss(µA) Part Number RN5VS09A/C RN5VS10A/C RN5VS11A/C RN5VS12A/C RN5VS13A/C RN5VS14A/C RN5VS15A/C RN5VS16A/C RN5VS17A/C RN5VS18A/C RN5VS19A/C RN5VS20A/C RN5VS21A/C RN5VS22A/C RN5VS23A/C RN5VS24A/C RN5VS25A/C RN5VS26A/C RN5VS27A/C RN5VS28A/C RN5VS29A/C RN5VS30A/C RN5VS31A/C RN5VS32A/C RN5VS33A/C RN5VS34A/C RN5VS35A/C RN5VS36A/C RN5VS37A/C RN5VS38A/C RN5VS39A/C MIN. TYP. MAX. MIN. TYP. MAX. 0.873 0.970 1.067 1.164 1.261 1.358 1.455 1.552 1.649 1.746 1.843 1.940 2.037 2.134 2.231 2.328 2.425 2.522 2.619 2.716 2.813 2.910 3.007 3.104 3.201 3.298 3.395 3.492 3.589 3.686 3.783 0.900 1.000 1.100 1.200 1.300 1.400 1.500 1.600 1.700 1.800 1.900 2.000 2.100 2.200 2.300 2.400 2.500 2.600 2.700 2.800 2.900 3.000 3.100 3.200 3.300 3.400 3.500 3.600 3.700 3.800 3.900 0.927 1.030 1.133 1.236 1.339 1.442 1.545 1.648 1.751 1.854 1.957 2.060 2.163 2.266 2.369 2.472 2.575 2.678 2.781 2.884 2.987 3.090 3.193 3.296 3.399 3.502 3.605 3.708 3.811 3.914 4.017 0.018 0.020 0.022 0.024 0.026 0.028 0.030 0.032 0.034 0.036 0.038 0.040 0.042 0.044 0.046 0.048 0.050 0.052 0.054 0.056 0.058 0.060 0.062 0.064 0.066 0.068 0.070 0.072 0.074 0.076 0.078 0.045 0.050 0.055 0.060 0.065 0.070 0.075 0.080 0.085 0.090 0.095 0.100 0.105 0.110 0.115 0.120 0.125 0.130 0.135 0.140 0.145 0.150 0.155 0.160 0.165 0.170 0.175 0.180 0.185 0.190 0.195 0.072 0.080 0.088 0.096 0.104 0.112 0.120 0.128 0.136 0.144 0.152 0.160 0.168 0.176 0.184 0.192 0.200 0.208 0.216 0.224 0.232 0.240 0.248 0.256 0.264 0.272 0.280 0.288 0.296 0.304 0.312 (Note 1) Refer to the previously defined “Output Delay Time tPLH”. (Note 2) Refer to the previously defined “Minimum Operating Voltage”. Condition 1 :Topt =25˚C Condition 2 :–40˚C ≤Topt ≤ 85˚C Conditions TYP. MAX. 0.8 2.4 0.9 2.7 1.0 3.0 Conditions TYP. MAX. 0.9 2.7 1.0 3.0 1.1 3.3 1.2 3.6 VDD= (–VDET) –0.10V VDD= (–VDET) –0.13V VDD= (–VDET) +2.0V RN5VS Topt=25˚C Output Current 1 Output Current 2 Iout(mA) Conditions MIN. Minimum Operating Voltage Detector Threshold Tempco. Iout(mA) tplh(µs) Vddl(V) ∆–Vdet/∆Topt (ppm/˚C) Iout(mA) TYP. Conditions VDD= 0.85V VDD= 1.0V MIN. TYP. 0.05 0.50 0.2 1.0 Nch VDS= 0.05V Output Current 3 Output Delay Time Conditions MIN. TYP. MAX. Pch 0.01 0.05 VDS= 0.50V VDS= –2.1V TYP. MAX. VDD= 0.7V 1.0 1.0 2.0 Note 1 100 Condition 1 Condition 1 0.55 0.70 2.0 VDD= 4.5V TYP. Note 2 Note 2 VDD= 1.5V Conditions Condition 2 Condition 2 0.65 0.80 –40˚C≤ Topt ≤ 85˚C ±100 RN5VS • RN5VS40A/C to RN5VS60A/C Detector Threshold Detector Threshold Hysteresis –Vdet(V) Vhys(V) Part Number RN5VS40A/C RN5VS41A/C RN5VS42A/C RN5VS43A/C RN5VS44A/C RN5VS45A/C RN5VS46A/C RN5VS47A/C RN5VS48A/C RN5VS49A/C RN5VS50A/C RN5VS51A/C RN5VS52A/C RN5VS53A/C RN5VS54A/C RN5VS55A/C RN5VS56A/C RN5VS57A/C RN5VS58A/C RN5VS59A/C RN5VS60A/C Supply Current 1 Supply Current 2 Iss(µA) MIN. TYP. MAX. MIN. TYP. MAX. 3.880 3.977 4.074 4.171 4.268 4.365 4.462 4.559 4.656 4.753 4.850 4.947 5.044 5.141 5.238 5.335 5.432 5.529 5.626 5.723 5.820 4.000 4.100 4.200 4.300 4.400 4.500 4.600 4.700 4.800 4.900 5.000 5.100 5.200 5.300 5.400 5.500 5.600 5.700 5.800 5.900 6.000 4.120 4.223 4.326 4.429 4.532 4.635 4.738 4.841 4.944 5.047 5.150 5.253 5.356 5.459 5.562 5.665 5.768 5.871 5.974 6.077 6.180 0.080 0.082 0.084 0.086 0.088 0.090 0.092 0.094 0.096 0.098 0.100 0.102 0.104 0.106 0.108 0.110 0.112 0.114 0.116 0.118 0.120 0.200 0.205 0.210 0.215 0.220 0.225 0.230 0.235 0.240 0.245 0.250 0.255 0.260 0.265 0.270 0.275 0.280 0.285 0.290 0.295 0.300 0.320 0.328 0.336 0.344 0.352 0.360 0.368 0.376 0.384 0.392 0.400 0.408 0.416 0.424 0.432 0.440 0.448 0.456 0.464 0.472 0.480 (Note 1) Refer to the previously defined “Output Delay Time tPLH”. (Note 2) Refer to the previously defined “Minimum Operating Voltage”. Condition 1 :Topt =25˚C Condition 2 :–40˚C ≤Topt ≤ 85˚C Conditions Iss(µA) TYP. MAX. 1.1 3.3 Conditions TYP. MAX. 1.3 3.9 1.4 4.2 VDD= (–VDET) –0.16V VDD= (–VDET) +2.0V VDD= (–VDET) –0.20V 1.2 3.6 RN5VS Topt=25˚C Output Current 1 Output Current 2 Iout(mA) Conditions MIN. VDD= 0.7V Output Delay Time Iout(mA) tplh(µs) Iout(mA) TYP. Conditions MIN. TYP. Nch VDS= 0.05V Output Current 3 Conditions MIN. TYP. MAX. Pch 0.01 0.05 VDS= 0.50V VDD= 1.5V 1.0 2.0 VDS= –2.1V VDD= 8.0V Minimum Detector Threshold Tempco. Operating Voltage Vddl(V) TYP. MAX. ∆–Vdet/∆Topt (ppm/˚C) Conditions TYP. Note 2 Note 2 1.5 3.0 Note 1 100 Condition 1 Condition 1 –40˚C≤ 0.55 0.70 Topt ≤85˚C Condition 2 Condition 2 0.65 0.80 ±100 RN5VS OPERATION VDD Ra • In RN5VS××A, Nch Tr. drain is Pch + connected to OUT pin. – • In RN5VS××C, Nch Tr. drain OUT Vref Rb and Pch Tr. drain are connected Nch Tr.1 to OUT pin. Rc GND FIG. 1 Block Diagram Operation Diagram 2 1 Detected Volage –VDET 4 5 B Released Volage +VDET Supply Volage (VDD) 3 A Step Step 1 Step 2 Step 3 Step 4 Step 5 Comparator(+) Pin Input Voltage I II II II I Comparator Output H L Indefinite L H Tr. 1 OFF ON Indefinite ON OFF Pch ON OFF Indefinite OFF ON Nch OFF ON Indefinite ON OFF Detector Threshold Hysteresis Minimum Operating Volage GND Output Tr. I. Output Volage Rb + Rc Ra + Rb + Rc ·VDD (OUT) II. GND FIG. 2 Operation Diagram Rb Ra + Rb ·VDD tPLH Step 1. Output Voltage is equal to Power Source Voltage (VDD). Step 2. When Input Voltage to Comparator reaches the state of Vref≥ VDD·(Rb+Rc)/(Ra+Rb+Rc)at Point A (Detected Voltage –VDET), the output of Comparator is reserved, so that Output Voltage becomes GND. Step 3. In the case of CMOS Output, Output Voltage becomes unstable when Supply Voltage (VDD) is smaller than Minimum Operating Voltage. In the case of Nch Open Drain Output, a pulled-up voltage is output. Step 4. Output Voltage becomes equal to GND. Step 5. When Input Voltage to Comparator reaches the state of Vref ≤VDD · (Rb)/(Ra+ Rb) at Point B (Released Voltage +VDET), the output of Comparator is reversed, so that Output Voltage becomes equal to Supply Voltage (VDD). RN5VS TEST CIRCUITS ISS VDD VDD Rn:RN5VS××A:470kΩ RN5VS××C:None RN5VS OUT SERIES OUT RN5VS SERIES VDET GND GND VSS VSS VSS FIG. 4 Detector Threshold Test Circuit FIG. 3 Supply Current Test Circuit VDD VDD VDD RN5VS SERIES VDD OUT IOUT RN5VS××C OUT SERIES +VDS GND VSS VSS VSS +5.0V VDD P.G. VDD –VDS FIG. 6 Pch Driver Output Current Test Circuit FIG. 5 Nch Driver Output Current Test Circuit +VDET+2.0V IOUT GND VSS 0.7V VSS Rn VDD VDD RN5VS××A OUT SERIES GND ROUT 470kΩ OUT COUT +5.0V ROUT 470kΩ RIN 100kΩ +VDET+2.0V 0.7V VSS VDD RN5VS××A OUT SERIES CIN GND P.G. VSS FIG. 7 Output Delay Time Test Circuit (1) OUT VSS FIG. 8 Output Delay Time Test Circuit (2) In Output Delay Time Test Circuits (1) and (2) in FIG. 7 and FIG. 8, their respective Output Voltage Fall Times (tPHL) and Rise Times (tPLH) are defined as shown below. +VDET+2.0V +VDET+2.0V Input Voltage Input Voltage 0.7V 0.7V GND GND +VDET+2.0V 5.0V Output Voltage +VDET+2.0V 2 Output Voltage 2.5V GND GND tPHL tPLH Nch Open Drain Output tPHL tPLH CMOS Output RN5VS TYPICAL CHARACTERISTICS 1) Supply Current vs. Input Voltage RN5VS27C RN5VS09C 2.5 2.5 Supply Current ISS(µA) Supply Current ISS(µA) Topt=85˚C 2.0 25˚C 1.5 –40˚C 1.0 0.5 0.0 2.0 Topt=85˚C –40˚C 1.0 0.5 0.0 0 2 4 6 Input Voltage VIN(V) 8 25˚C 1.5 10 0 2 4 6 Input Voltage VIN(V) 8 10 RN5VS45C 2.0 Supply Current ISS(µA) Topt=85˚C 1.5 25˚C 1.0 –40˚C 0.5 0.0 0 2 4 6 Input Voltage VIN(V) 8 10 2) Detector Threshold vs. Temperature RN5VS27C RN5VS09C 2.9 0.98 Detector Threshold VDET(V) Detector Threshold VDET(V) 1.00 0.96 0.94 0.92 +VDET 0.90 0.88 –VDET 0.86 0.84 –60 –40 –20 0 20 40 60 Temperature Topt(˚C) 80 100 2.8 +VDET 2.7 –VDET 2.6 2.5 –60 –40 –20 0 20 40 60 Temperature Topt(˚C) 80 100 RN5VS RN5VS45C Detector Threshold VDET(V) 4.8 +VDET 4.7 4.6 –VDET 4.5 4.4 –60 –40 –20 0 20 40 60 Temperature Topt(˚C) 80 100 3) Output Voltage vs. Input Voltage RN5VS09A RN5VS09A VDD Pull-up 470kΩ 1.6 Output Voltage VOUT(V) Output Voltage VOUT(V) 1.4 1.2 1 0.8 0.6 25˚C 0.4 85˚C Topt=–40˚C 0.2 0 5V Pull-up 470kΩ 6 0 0.2 4 25˚C 3 85˚C 2 1 0 0.4 0.6 0.8 1 1.2 1.4 1.6 Input Voltage VIN(V) Topt=–40˚C 5 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 Input Voltage VIN(V) RN5VS27A RN5VS27A VDD Pull-up 470kΩ 3 2 1 85˚C 25˚C 0 Topt=–40˚C 0 0.5 1 1.5 2 2.5 3 Input Voltage VIN(V) 3.5 4 5V Pull-up 470kΩ 6 Output Voltage VOUT(V) Output Voltage VOUT(V) 4 5 4 Topt=–40˚C 3 25˚C 2 85˚C 1 0 0 0.5 1 1.5 2 2.5 3 Input Voltage VIN(V) 3.5 4 RN5VS RN5VS45A RN5VS45A VDD Pull-up 470kΩ 6 5V Pull-up 470kΩ 6 Output Voltage VOUT(V) Output Voltage VOUT(V) Topt=–40˚C 5 4 3 2 85˚C 25˚C 1 5 25˚C 4 85˚C 3 2 1 Topt=–40˚C 0 0 1 2 3 4 Input Voltage VIN(V) 5 0 6 0 1 2 3 4 Input Voltage VIN(V) 5 6 4) Nch Driver Output Current vs. VDS RN5VS09C RN5VS09C Topt=25˚C 600 VDD=0.85V 500 400 300 0.7V 200 100 0 0 0.2 0.4 0.6 Topt=25˚C 300 Output Current IOUT(µA) Output Current IOUT(µA) 700 250 200 100 0.7V 50 0 0.8 VDD=0.8V 150 0 0.02 0.04 0.06 VDS(V) VDS(V) Topt=25˚C Output Current IOUT(µA) Output Current IOUT(mA) VDD=2.5V 12 10 2.0V 8 6 1.5V 4 Topt=25˚C 300 18 16 14 0.1 RN5VS27C RN5VS27C 20 0.08 250 200 VDD=0.8V 150 100 0.7V 50 2 0 0.0 0 0.5 1.0 1.5 VDS(V) 2.0 2.5 0 0.02 0.04 0.06 VDS(V) 0.08 0.1 RN5VS RN5VS45C RN5VS45C Topt=25˚C VDD=4.5V 50 4.0V 40 3.5V 30 3.0V 20 2.5V 2.0V 10 Output Current IOUT(µA) Output Current IOUT(mA) 60 Topt=25˚C 300 1.5V 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 VDS(V) 250 200 VDD=0.8V 150 100 0.7V 50 0 0 0.02 0.04 0.06 VDS(V) 0.08 0.1 5) Nch Driver Output Current vs. Input Voltage RN5VS09C RN5VS27C 900 14 Output Current IOUT(mA) Output Current IOUT(µA) 800 700 600 500 Topt=–40˚C 400 300 25˚C 200 85˚C 100 0 0 0.2 0.4 0.6 0.8 Input Voltage VIN(V) 1 1.2 5 6 RN5VS45C Output Current IOUT(mA) 25 20 Topt=–40˚C 15 25˚C 10 85˚C 5 0 0 1 2 3 4 Input Voltage VIN(V) 12 10 Topt=–40˚C 25˚C 8 6 85˚C 4 2 0 0.0 0.5 1.0 1.5 2.0 Input Voltage VIN(V) 2.5 3.0 RN5VS 6) Pch Driver Output Current vs. Input Voltage RN5VS27C RN5VS09C Topt=25˚C 1.2 1.0 VDS=0.7V 0.8 0.6 0.5V 0.4 0.2 0.0 3.0 VDS=2.1V 2.5 2 4 6 Input Voltage VIN(V) 1.5V 2.0 1.0V 1.5 1.0 0.5V 0.5 0.0 0 Topt=25˚C 3.5 Output Current IOUT(mA) Output Current IOUT(mA) 1.4 8 0 1 2 3 4 5 Input Voltage VIN(V) 6 7 RN5VS45C Topt=25˚C 4.5 Output Current IOUT(mA) 4.0 3.5 VDS=2.1V 3.0 1.5V 2.5 1.0V 2.0 1.5 0.5V 1.0 0.5 0.0 0 2 4 6 Input Voltage VIN(V) 8 10 7) Output Delay Time vs. Load Capacitance RN5VS09A RN5VS27A 100 Output Delay Time tp(ms) Output Delay Time tp(ms) 100 10 1 tPLH 0.1 0.01 0.001 0.0001 tPHL 0.001 0.01 Load Capacitance COUT(µF) 0.1 10 1 tPLH 0.1 0.01 0.001 0.0001 tPHL 0.001 0.01 Load Capacitance COUT(µF) 0.1 RN5VS RN5VS45A Output Delay Time tp(ms) 100 10 1 tPLH 0.1 0.01 0.001 0.0001 tPHL 0.001 0.01 Load Capacitance COUT(µF) 0.1 8) Output Delay Time vs. Input Pin Capacitance RN5VS27A RN5VS09A 100 Output Delay Time tp(ms) Output Delay Time tp(ms) 100 10 1 tPLH 0.1 0.01 0.001 0.0001 tPHL 0.001 0.01 Input Pin Capacitance CIN(µF) 0.1 10 1 tPLH 0.1 tPHL 0.01 0.001 0.0001 0.001 0.01 Input Pin Capacitance CIN(µF) 0.1 RN5VS45A Output Delay Time tp(ms) 100 10 1 tPLH 0.1 tPHL 0.01 0.001 0.001 0.01 0.1 Input Pin Capacitance CIN(µF) 1 2 RN5VS TYPICAL APPLICATIONS • RN5VS ×× A CPU Reset Circuit (Nch Open Drain Output) (1) Input Voltage to RN5VS ×× A is the same as (2) Input Voltage to RN5VS ×× A is different the input voltage to CPU. from the input voltage to CPU. VDD VDD 470kΩ RN5VS××A SERIES VDD1 VDD R 470kΩ RN5VS××A SERIES CPU RESET OUT VDD2 VDD GND GND VDD R RESET OUT CPU GND GND • RN5VS ×× C CPU Reset Circuit (CMOS Output) VDD VDD VDD RN5VS××C SERIES OUT RESET CPU GND GND • RN5VS ×× A Output delay Time Circuit 1 • RN5VS ×× A Output delay Time Circuit 2 VDD VDD 470kΩ R RN5VS××A OUT SERIES VDD VDD RESET 100kΩ 470kΩ R1 CPU VDD GND GND RN5VS××A SERIES RESET OUT GND • Memory Back-up Circuit VDD VCC D1 D2 A Y1 Y2 B Y3 G Y4 GND VDD RN5VS××C OUT SERIES GND R2 VDD VCC VCC VCC VCC RAM1 RAM2 RAM3 RAM4 GND CS GND CS GND CS GND CS CPU GND RN5VS • Voltage Level Indicator Circuit (lighted when the power runs out) ( Nch Open Drain Output) VDD VDD OUT RN5VS××A SERIES GND • Detector Threshold Changing Circuit (Nch Open Drain Output) VDD Changed Detector Threshold = Ra OUT RN5VS××A SERIES VDD Hysteresis Voltage = Rb C GND Ra + Rb Rb Ra + Rb Rb · (–VDET ) · VHYS (Note) Please note that when the value of Ra becomes excessively large, the detector threshold detected may differ from the value calculated by use of the above formula. • Window Comparator Circuit (Nch Open Drain Output) VDD VDET1 VDET2 VDD VDD RN5VS××A OUT SERIES VDET2 VDD RN5VS××A OUT SERIES VDET1 OUT VSS GND OUT GND VSS • Excessive Charge Preventing Circuit D1 R1 R2 VDD R4 OUT R3 RN5VS××C SERIES Load Solar Battery Light VSS 2 RN5VS APPLICATION HINTS VDD VDD R1 R VDD VDD R2 RN5VS OUT SERIES GND FIG.9 RN5VS OUT SERIES GND FIG.10 1. When RN5VS×× C (CMOS Output) is used in FIG. 9, this IC may oscillate by the through-type current at the detection when impedance is connected between Power Source VDD and RN5VS VDD Pin.When RN5VS×× A (Nch Open Drain Output) is used in FIG. 9, and R becomes excessively large, Detector Threshold may be varied because of the voltage drop of the supply current in the IC itself. 2. The connection as shown in FIG. 10 may cause the oscillation in both RN5VS×× C (CMOS Output) and RN5VS×× A (Nch Open Drain Output). RN5VS PACKAGE DIMENSIONS (Unit: mm) • SOT-23-5 2.9±0.2 1 2 2.8±0.3 4 +0.2 1.6 –0.1 5 0.8±0.1 0.2 MIN. +0.2 1.1 –0.1 1.9±0.2 (0.95) (0.95) 0 to 0.1 3 0.4±0.1 +0.1 0.15 –0.05 TAPING SPECIFICATIONS (Unit: mm) • SOT-23-5 4.0±0.1 ø 1.5+0.1 –0 2.0±0.05 8.0±0.3 3.5±0.05 1.75±0.1 0.3±0.1 3.2 3.3 4.0±0.1 2.0MAX. TL TR User Direction of Feed. 2 RICOH COMPANY, LTD. ELECTRONIC DEVICES DIVISION HEADQUARTERS 13-1, Himemuro-cho, Ikeda City, Osaka 563, JAPAN Phone 81-727-53-1111 Fax 81-727-53-6011 YOKOHAMA OFFICE (International Sales) 3-2-3, Shin-Yokohama, Kohoku-ku, Yokohama City, Kanagawa 222, JAPAN Phone 81-45-477-1697 Fax 81-45-477-1694 · 1695 RICOH CORPORATION ELECTRONIC DEVICES DIVISION SAN JOSE OFFICE 3001 Orchard Parkway, San Jose, CA 95134-2088, U.S.A. Phone 1-408-432-8800 Fax 1-408-432-8375