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ELECTRONIC DEVICES DIVISION LOW VOLTAGE DETECTOR R×5VT SERIES APPLICATION MANUAL NO.EA-026-9803

  1. The products and the product specifications described in this application manual are subject to change or dis- continuation 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 con- sent of Ricoh. 3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or other- wise 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. 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, computer equipment, measuring instruments, consumer electronic products, amusement equipment etc.). Those customers intending to use a product in an application requiring extreme quality and reliability, for example, in a highly specific application where the failure or misoperation of the product could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system, traffic control system, automotive and transportation equipment, combustion equipment, safety devices, life support system etc.) should first contact us. 6. We are making our continuous effort to improve the quality and reliability of our products, but semiconductor products are likely to fail with certain probability. In order prevent any injury to persons or damages to property resulting from such failure, customers should be careful enough to incorporate safety measures in their design, such as redundancy feature, fire-containment feature and fail-safe feature. We do not assume any liability or responsibility for any loss or damage arising from misuse or inappropriate use of the products. 7. Anti-radiation design is not implemented in the products described in this application manual. 8. Please contact Ricoh sales representatives should you have any questions or comments concerning the prod- ucts or the technical information. June 1995

R×5VT SERIES APPLICATION MANUAL

CONTENTS

R×5VT SERIES OUTLINE The R×5VT 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 R×5VT Series are operable by a lower voltage than that for the R×5VL Series, and can be driven by a sin- gle battery. Two output types, Nch open drain type and CMOS type, are available. Three types of packages, TO-92, SOT- 89 (Mini-power Mold), SOT-23-5 (Mini-mold), are available. is possible (refer to Selection Guide).

FEATURES

APPLICATIONS

  • CPU & Logic Circuit Reset
  • Battery Checker
  • Window Comparator
  • Wave Shaping Circuit
  • Battery Back-Up Circuit
  • Power Failure Detector

R×5VT BLOCK DIAGRAMS

  • Nch Open Drain Output (R×5VT××A)
  • CMOS Output (R×5VT××C) TIME CHART DEFINITION OF OUTPUT DELAY TIME tPLH Vref OUT GND VDD VDD Vref OUT GND Detector Threshold Hysteresis tPLH Released Voltage +VDET Detected Voltage –VDET Supply Voltage (VDD) Output Voltage (OUT) Minimum Operating Voltage GND GND tPLH tPHL Input Voltage (VDD) Output Voltage Nch Open Drain Output GND GND 2.5V 5.0V 0.7V +VDET + 2.0V tPLH tPHL CMOS Output GND GND 0.7V +VDET + 2.0V +VDET +2.0V +VDET + 2.0V Input Voltage (VDD) Output Voltage

R×5VT 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 470kΩis 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.

R×5VT ↑↑↑ a b c d e SELECTION GUIDE The package type, the detector threshold, the output type, the packing type, and the taping type of R×5VT series can be designating at the user's request by specifying the part number as follows: For example, the product with Package Type SOT-89, Detector Threshold 3.5V, Output Type Nch Open Drain and Taping Type T1, is designated by Part Number RH5VT35AA-T1. Code Designation of Package Type: E: TO-92 a H: SOT-89 (Mini-power Mold) N: SOT-23-5 (Mini-mold) b Setting Detector Threshold (–VDET): Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible. Designation of Output Type: c A: Nch Open Drain C: CMOS Designation of Packing Type: d A: Taping C: Antistatic bag for TO-92 and samples Designation of Taping Type: Ex. TO-92: RF, RR, TZ e SOT-89: T1, T2 SOT-23-5: TR, TL (refer to Taping Specifications) “TZ”, “T1” and “TR” are prescribed as a standard

R×5VT

  • TO-92 PIN CONFIGURATION
  • SOT-89
  • SOT-23-5 PIN DESCRIPTION
  • TO-92
  • SOT-89
  • SOT-23-5 Pin No. Symbol OUT VDD GND NC NC Pin No. Symbol OUT VDD GND Pin No. Symbol OUT VDD GND (mark side) (mark side) (mark side)

Power Dissipation 1 (NOTE1) PD2 Power Dissipation 2 (NOTE2) Topt Operating Temperature Range Tstg Storage Temperature Range Tsolder Lead Temperature (Soldering) Rating Unit V CMOS VSS–0.3 to VDD+0.3 V Nch VSS–0.3 to 12 mA 300 mW 150 mW –30 to +80 –55 to +125 260˚C,10s Topt=25˚C (NOTE 1) applied to SOT-89 and TO-92 (NOTE 2) applied to SOT-23-5 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. ABSOLUTE MAXIMUM RATINGS

R×5VT

  • R×5VT18A/C Topt=25˚C

ELECTRICAL CHARACTERISTICS

  • R×5VT09A/C Symbol Item –VDET Detector Threshold VHYS Detector Threshold Hysteresis ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage IOUT Output Current tPLH Output Delay Time ∆–VDET Detector Threshold ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit Note 0.878 0.900 0.922 V 0.027 0.045 0.063 V VDD=0.80V 0.8 2.4 VDD=2.90V 0.9 2.7 µA V Topt=25˚C 0.55 0.70 V Note 1 0.65 0.80 Nch VDS=0.05V,VDD=0.70V 0.01 0.05 mA VDS=0.50V,VDD=0.85V 0.05 0.50 Pch VDS=–2.1V,VDD=4.5V 1.0 2.0 mA 100 µs Note 2 ±100 ppm/˚C Topt=25˚C Symbol Item –VDET Detector Threshold VHYS Detector Threshold Hysteresis ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage IOUT Output Current tPLH Output Delay Time ∆–VDET Detector Threshold ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit Note 1.755 1.800 1.845 V 0.054 0.090 0.126 V VDD=1.70V 0.8 2.4 VDD=3.80V 1.0 3.0 µA V Topt=25˚C 0.55 0.70 V Note 1 0.65 0.80 Nch VDS=0.05V,VDD=0.70V 0.01 0.05 mA VDS=0.50V,VDD=1.50V 1.00 2.00 Pch VDS=–2.1V,VDD=4.5V 1.0 2.0 mA 100 µs Note 2 ±100 ppm/˚C

R×5VT Topt=25˚C

  • R×5VT27A/C Topt=25˚C Symbol Item –VDET Detector Threshold VHYS Detector Threshold Hysteresis ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage IOUT Output Current tPLH Output Delay Time ∆–VDET Detector Threshold ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit Note 2.633 2.700 2.767 V 0.081 0.135 0.189 V VDD=2.60V 0.9 2.7 VDD=4.70V 1.1 3.3 µA V Topt=25˚C 0.55 0.70 V Note 1 0.65 0.80 Nch VDS=0.05V,VDD=0.70V 0.01 0.05 mA VDS=0.50V,VDD=1.50V 1.00 2.00 Pch VDS=–2.1V,VDD=4.5V 1.0 2.0 mA 100 µs Note 2 ±100 ppm/˚C Symbol Item –VDET Detector Threshold VHYS Detector Threshold Hysteresis ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage IOUT Output Current tPLH Output Delay Time ∆–VDET Detector Threshold ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit Note 3.510 3.600 3.690 V 0.108 0.180 0.252 V VDD=3.47V 1.0 3.0 VDD=5.60V 1.2 3.6 µA V Topt=25˚C 0.55 0.70 V Note 1 0.65 0.80 Nch VDS=0.05V,VDD=0.70V 0.01 0.05 mA VDS=0.50V,VDD=1.50V 1.00 2.00 Pch VDS=–2.1V,VDD=4.5V 1.0 2.0 mA 100 µs Note 2 ±100 ppm/˚C

R×5VT

  • R×5VT54A/C Topt=25˚C (Note 1) 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. (Note 2) Refer to the previously defined “Output Delay Time tPLH”.
  • R×5VT45A/C Topt=25˚C Symbol Item –VDET Detector Threshold VHYS Detector Threshold Hysteresis ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage IOUT Output Current tPLH Output Delay Time ∆–VDET Detector Threshold ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit Note 4.388 4.500 4.612 V 0.135 0.225 0.315 V VDD=4.34V 1.1 3.3 VDD=6.50V 1.3 3.9 µA V Topt=25˚C 0.55 0.70 V Note 1 0.65 0.80 Nch VDS=0.05V,VDD=0.70V 0.01 0.05 mA VDS=0.50V,VDD=1.50V 1.00 2.00 Pch VDS=–2.1V,VDD=8.0V 1.5 3.0 mA 100 µs Note 2 ±100 ppm/˚C Symbol Item –VDET Detector Threshold VHYS Detector Threshold Hysteresis ISS Supply Current VDDH Maximum Operating Voltage VDDL Minimum Operating Voltage IOUT Output Current tPLH Output Delay Time ∆–VDET Detector Threshold ∆Topt Temperature Coefficient Conditions MIN. TYP. MAX. Unit Note 5.265 5.400 5.535 V 0.162 0.270 0.378 V VDD=5.20V 1.2 3.6 VDD=7.40V 1.4 4.2 µA V Topt=25˚C 0.55 0.70 V Note 1 0.65 0.80 Nch VDS=0.05V,VDD=0.70V 0.01 0.05 mA VDS=0.50V,VDD=1.50V 1.00 2.00 Pch VDS=–2.1V,VDD=8.0V 1.5 3.0 mA 100 µs Note 2 ±100 ppm/˚C

R×5VT Supply Current 1 Supply Current 2 Iss(µA) Iss(µA) Conditions TYP. MAX. Conditions TYP. MAX. 0.9 2.7 0.8 2.4 1.0 3.0 VDD= (–VDET) –0.10V VDD= 0.9 2.7 (–VDET) 1.1 3.3 +2.0V VDD= (–VDET) 1.0 3.0 1.2 3.6 –0.13V

  • R×5VT09A/C to R×5VT39A/C Detector Threshold Detector Threshold Part Number –VDET(V) VHYS(V) MIN. TYP. MAX. MIN. TYP. MAX. R×5VT09A/C 0.878 0.900 0.922 0.027 0.045 0.063 R×5VT10A/C 0.975 1.000 1.025 0.030 0.050 0.070 R×5VT11A/C 1.073 1.100 1.127 0.033 0.055 0.077 R×5VT12A/C 1.170 1.200 1.230 0.036 0.060 0.084 R×5VT13A/C 1.268 1.300 1.332 0.039 0.065 0.091 R×5VT14A/C 1.365 1.400 1.435 0.042 0.070 0.098 R×5VT15A/C 1.463 1.500 1.537 0.045 0.075 0.105 R×5VT16A/C 1.560 1.600 1.640 0.048 0.080 0.112 R×5VT17A/C 1.658 1.700 1.742 0.051 0.085 0.119 R×5VT18A/C 1.755 1.800 1.845 0.054 0.090 0.126 R×5VT19A/C 1.853 1.900 1.947 0.057 0.095 0.133 R×5VT20A/C 1.950 2.000 2.050 0.060 0.100 0.140 R×5VT21A/C 2.048 2.100 2.152 0.063 0.105 0.147 R×5VT22A/C 2.145 2.200 2.255 0.066 0.110 0.154 R×5VT23A/C 2.243 2.300 2.357 0.069 0.115 0.161 R×5VT24A/C 2.340 2.400 2.460 0.072 0.120 0.168 R×5VT25A/C 2.438 2.500 2.562 0.075 0.125 0.175 R×5VT26A/C 2.535 2.600 2.665 0.078 0.130 0.182 R×5VT27A/C 2.633 2.700 2.767 0.081 0.135 0.189 R×5VT28A/C 2.730 2.800 2.870 0.084 0.140 0.196 R×5VT29A/C 2.828 2.900 2.972 0.087 0.145 0.203 R×5VT30A/C 2.925 3.000 3.075 0.090 0.150 0.210 R×5VT31A/C 3.023 3.100 3.177 0.093 0.155 0.217 R×5VT32A/C 3.120 3.200 3.280 0.096 0.160 0.224 R×5VT33A/C 3.218 3.300 3.382 0.099 0.165 0.231 R×5VT34A/C 3.315 3.400 3.485 0.102 0.170 0.238 R×5VT35A/C 3.413 3.500 3.587 0.105 0.175 0.245 R×5VT36A/C 3.510 3.600 3.690 0.108 0.180 0.252 R×5VT37A/C 3.608 3.700 3.792 0.111 0.185 0.259 R×5VT38A/C 3.705 3.800 3.895 0.114 0.190 0.266 Hysteresis ELECTRICAL CHARACTEISTICS BY DETECTOR THRESHOLD (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:–30˚C ≤Topt ≤80˚C

IOUT(mA) IOUT(mA) Conditions MIN. TYP. Conditions MIN. TYP. VDD= 0.05 0.50 0.85V VDD= 0.2 1.0 1.0V Nch VDS= VDS= 0.05V 0.01 0.05 0.50V VDD= 1.5V 1.0 2.0 VDD= 0.7V Output Current 3 Output Delay Minimum IOUT(mA) tPLH(µs) VDDL(V) Conditions MIN. TYP. MAX. TYP. MAX. Pch Note 2 Note 2 VDS= Note 1 Condition 1 Condition 1 –2.1V 1.0 2.0 100 0.55 0.70 VDD= Condition 2 Condition 2 4.5V 0.65 0.80 Detector Threshold Conditions TYP. –30˚C≤ Topt ±100 ≤80˚C Time Operating Voltage Tempco. ∆–VDET/∆Topt (ppm/˚C) Topt=25˚C

R×5VT Supply Current 1 Supply Current 2 ISS(µA) ISS(µA) Conditions TYP. MAX. Conditions TYP. MAX. VDD= (–VDET) 1.1 3.3 1.3 3.9 –0.16V VDD= (–VDET) +2.0V VDD= (–VDET) 1.2 3.6 1.4 4.2 –0.20V Detector Threshold Detector Threshold Part Number –VDET(V) VHYS(V) MIN. TYP. MAX. MIN. TYP. MAX. R×5VT40A/C 3.900 4.000 4.100 0.120 0.200 0.280 R×5VT41A/C 3.998 4.100 4.202 0.123 0.205 0.287 R×5VT42A/C 4.095 4.200 4.305 0.126 0.210 0.294 R×5VT43A/C 4.193 4.300 4.407 0.129 0.215 0.301 R×5VT44A/C 4.290 4.400 4.510 0.132 0.220 0.308 R×5VT45A/C 4.388 4.500 4.612 0.135 0.225 0.315 R×5VT46A/C 4.485 4.600 4.715 0.138 0.230 0.322 R×5VT47A/C 4.583 4.700 4.817 0.141 0.235 0.329 R×5VT48A/C 4.680 4.800 4.920 0.144 0.240 0.336 R×5VT49A/C 4.778 4.900 5.022 0.147 0.245 0.343 R×5VT50A/C 4.875 5.000 5.125 0.150 0.250 0.350 R×5VT51A/C 4.973 5.100 5.277 0.153 0.255 0.357 R×5VT52A/C 5.070 5.200 5.330 0.156 0.260 0.364 R×5VT53A/C 5.168 5.300 5.432 0.159 0.265 0.371 R×5VT54A/C 5.265 5.400 5.535 0.162 0.270 0.378 R×5VT55A/C 5.363 5.500 5.637 0.165 0.275 0.385 R×5VT56A/C 5.460 5.600 5.740 0.168 0.280 0.392 R×5VT57A/C 5.558 5.700 5.842 0.171 0.285 0.399 R×5VT58A/C 5.655 5.800 5.945 0.174 0.290 0.406 R×5VT59A/C 5.753 5.900 6.047 0.177 0.295 0.413 Hysteresis (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:–30˚C ≤Topt ≤80˚C

  • R×5VT40A/C to R×5VT60A/C

IOUT(mA) IOUT(mA) Conditions MIN. TYP. Conditions MIN. TYP. Nch VDS= VDS= VDD= 0.05V 0.01 0.05 0.50V 1.5V 1.0 2.0 VDD= 0.7V Output Current 3 Output Delay Minimum IOUT(mA) tPLH(µs) VDDL(V) Conditions MIN. TYP. MAX. TYP. MAX. Pch Note 2 Note 2 VDS= Note 1 Condition 1 Condition 1 –2.1V 1.5 3.0 100 0.55 0.70 VDD= Condition 2 Condition 2 8.0V 0.65 0.80 Detector Threshold Conditions TYP. –30˚C≤ Topt ±100 ≤80˚C Time Operating Voltage Tempco. ∆–VDET/∆Topt (ppm/˚C) Topt=25˚C

FIG. 1 Block Diagram Operation Diagram 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 Com- parator 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). FIG. 2 Operation Diagram 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 Output Tr. Pch ON OFF Indefinite OFF ON Nch OFF ON Indefinite ON OFF Rb + Rc Ra + Rb + Rc

  • VDD II. Rb Ra + Rb
  • VDD GND OUT VDD Ra Rb Rc Tr.1 Vref Pch Nch Detector Threshold Hysteresis tPLH A B
  • In R×5VT××A, Nch Tr. drain is connected to OUT pin.
  • In R×5VT××C, Nch Tr. drain and Pch Tr. drain are connected to OUT pin. Released Volage +VDET Supply Volage Detected Volage –VDET (VDD) Minimum Operating Volage GND Output Volage (OUT) GND

R×5VT TEST CIRCUITS FIG. 3 Supply Current Test Circuit FIG. 5 Nch Driver Output Current Test Circuit FIG. 4 Detector Threshold Test Circuit FIG. 6 Pch Driver Output Current Test Circuit FIG. 7 Output Delay Time Test Circuit (1) 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. VDD VSS ISS VDD GND OUT R×5VT SERIES VDD VSS VDD GND OUT R×5VT SERIES Rn VSS VDET Rn:R×5VT××A:470kΩ R×5VT××C:None VDD VSS VDD GND OUT R×5VT SERIES IOUT VSS +VDS VDD R×5VT××C SERIES VSS VDD GND OUT IOUT VSS VDD –VDS P.G. R×5VT××A SERIES VDD GND OUT OUT VSS COUT +5.0V ROUT 470kΩ +VDET+2.0V 0.7V VSS R×5VT××A SERIES VDD GND OUT OUT VSS +5.0V +VDET+2.0V ROUT 470kΩ 100kΩ 0.7V VSS P.G. RIN CIN tPHL tPLH +VDET+2.0V Input Voltage Output Voltage 0.7V GND 5.0V 2.5V GND Nch Open Drain Output tPHL tPLH +VDET+2.0V +VDET+2.0V +VDET+2.0V GND 0.7V GND CMOS Output Input Voltage Output Voltage

R×5VT TYPICAL CHARACTERISTICS 1) Supply Current vs. Input Voltage R×5VT09C R×5VT27C R×5VT45C R×5VT09C R×5VT27C 0.5 1.0 1.5 2.0 2.5 3.0 Input Voltage VIN(V) Supply Current ISS(µA) Topt=80˚C 25˚C –30˚C 0.5 1.0 1.5 2.0 Input Voltage VIN(V) Supply Current ISS(µA) Topt=80˚C –30˚C 25˚C –30˚C 0.5 1.0 1.5 2.0 2.5 3.0 Input Voltage VIN(V) Supply Current ISS(µA) Topt=80˚C 25˚C –40 0.84 0.86 0.88 0.90 0.92 0.94 0.96 0.98 1.00 –20 100 Tenperature Topt(˚C) Detector Threshold VDET(V) +VDET –VDET –40 2.5 2.6 2.7 2.8 2.9 –20 100 Temperature Topt(˚C) Detector Threshold VDET(V) +VDET –VDET 2) Detector Threshold vs. Temperature

R×5VT R×5VT45C R×5VT09A R×5VT09A R×5VT27A 3) Output Voltage vs. Input Voltage R×5VT27A –40 4.4 4.5 4.6 4.7 4.8 –20 100 Temperature Topt(˚C) Detector Threshold VDET(V) +VDET –VDET 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Input Voltage VIN(V) VDD Pull-up 470kΩ Output Voltage VOUT(V) 25˚C 80˚C Topt=–30˚C 80˚C 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Input Voltage VIN(V) 5V Pull-up 470kΩ Output Voltage VOUT(V) 25˚C Topt=–30˚C 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Input Voltage VIN(V) VDD Pull-up 470kΩ Output Voltage VOUT(V) 25˚C 80˚C Topt=–30˚C 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Input Voltage VIN(V) 5V Pull-up 470kΩ Output Voltage VOUT(V) 25˚C Topt=–30˚C 80˚C

R×5VT 4) Nch Driver Output Current vs. VDS R×5VT45A R×5VT45A R×5VT09C R×5VT27C R×5VT27C R×5VT09C Input Voltage VIN(V) Output Voltage VOUT(V) Topt=–30˚C 25˚C 80˚C VDD Pull-up 470kΩ Input Voltage VIN(V) Output Voltage VOUT(V) Topt=–30˚C 25˚C 80˚C 5V Pull-up 470kΩ 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.2 0.4 0.6 0.8 VDS(V) Topt=25˚C Output Current IOUT(mA) VDD=0.85V 0.7V 0.05 0.10 0.15 0.20 0.25 0.02 0.04 0.06 0.08 0.10 VDS(V) Topt=25˚C Output Current IOUT(mA) VDD=0.8V 0.7V 2.0V 1.5V 0.5 1.0 1.5 2.0 2.5 VDS(V) Output Current IOUT(mA) Topt=25˚C VDD=2.5V 0.20 0.15 0.10 0.05 0.25 0.02 0.04 0.06 0.08 0.10 VDS(V) Output Current IOUT(mA) Topt=25˚C 0.7V VDD=0.8V

5) Nch Driver Output Current vs. Input Voltage R×5VT45C R×5VT45C R×5VT09C R×5VT27C R×5VT45C R×5VT 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 VDS(V) Output Current IOUT(mA) 3.5V 3.0V 2.5V 2.0V 1.5V Topt=25˚C VDD=4.0V 0.20 0.15 0.10 0.05 0.25 0.02 0.04 0.06 0.08 0.10 VDS(V) Output Current IOUT(mA) Topt=25˚C 0.7V VDD=0.8V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.2 0.4 0.6 0.8 1.0 1.2 Input Voltage VIN(V) VDS=0.5V Output Current IOUT(mA) 25˚C Topt=80˚C –30˚C VDS=0.5V 0.5 1.0 1.5 2.0 2.5 3.0 Input Voltage VIN(V) Output Current IOUT(mA) 25˚C 80˚C Topt=–30˚C Input Voltage VIN(V) VDS=0.5V Output Current IOUT(mA) 25˚C 80˚C Topt=–30˚C

R×5VT R×5VT09C 6) Pch Driver Output Current vs. Input Voltage R×5VT45C R×5VT27A R×5VT09A R×5VT27C 7) Output Delay Time vs. Load Capacitance 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Input Voltage VIN(V) Output Current IOUT(mA) 0.5V Topt=25˚C VDS=0.7V 0.5 1.0 1.5 2.0 2.5 3.0 Input Voltage VIN(V) Output Current IOUT(mA) Topt=25˚C 1.5V 1.0V 0.5V VDS=2.1V Input Voltage VIN(V) Output Current IOUT(mA) Topt=25˚C 1.5V 1.0V 0.5V VDS=2.1V 0.0001 0.001 0.01 0.1 0.01 0.1 100 Load Capacitance COUT(µF) Output Delay Time tp(ms) tPHL tPLH 0.0001 0.001 0.01 0.1 0.01 0.1 100 Load Capacitance COUT(µF) Output Delay Time tp(ms) tPHL tPLH

8) Output Delay Time vs. Input Pin Capacitance R×5VT45A R×5VT27A R×5VT09A R×5VT45A R×5VT 0.0001 0.001 0.01 0.1 0.01 0.1 100 Load Capacitance COUT(µF) Output Delay Time tp(ms) tPHL tPLH 0.0001 0.001 0.01 0.1 0.01 0.1 100 Input Pin Capacitance CIN(µF) Output Delay Time tp(ms) tPHL tPLH 0.0001 0.001 0.01 0.1 0.01 0.1 100 Input Pin Capacitance CIN(µF) Output Delay Time tp(ms) tPHL tPLH 0.0001 0.001 0.01 0.1 0.01 0.1 100 Input Pin Capacitance CIN(µF) Output Delay Time tp(ms) tPHL tPLH

R×5VT TYPICAL APPLICATIONS

  • R×5VT××A CPU Reset Circuit (Nch Open Drain Output) (1)Input Voltage to R×5VT××A is the same as the input voltage to CPU. (2) Input Voltage to R×5VT××A is different from the input voltage to CPU.
  • R×5VT××A Output delay Time Circuit 2
  • Memory Back-up Circuit
  • R×5VT××A Output delay Time Circuit 1
  • R×5VT××C CPU Reset Circuit (CMOS Output) R VDD GND OUT 470kΩ R×5VT××A SERIES VDD VDD CPU RESET GND VDD VDD1 VDD2 GND OUT 470kΩ R R×5VT××A SERIES VDD CPU RESET GND VDD VDD OUT GND R×5VT××C SERIES VDD CPU RESET GND VDD VDD OUT 470kΩ R GND R×5VT××A SERIES VDD CPU RESET GND VDD VDD GND OUT 470kΩ 100kΩ R×5VT××A SERIES VDD CPU RESET GND OUT A B G VCC RAM1 GND CS VCC RAM2 GND CS VCC RAM3 GND CS VCC RAM4 GND CS GND VDD VDD GND VCC R×5VT××C SERIES

R×5VT

  • Voltage Level Indicator Circuit (lighted when the power runs out) ( Nch Open Drain Output)
  • Detector Threshold Changing Circuit (Nch Open Drain Output)
  • Window Comparator Circuit (Nch Open Drain Output) Changed Detector Threshold =
  • (–VDET ) Hysteresis Voltage =
  • 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 for- mula. Ra + Rb Rb Ra + Rb Rb VDD VDD GND OUT R×5VT××A SERIES C VDD VDD OUT GND Ra Rb R×5VT××A SERIES VDD VDD VDD GND GND OUT OUT OUT VDET2 VDET1 R×5VT××A SERIES R×5VT××A SERIES VDD VDET1 VDET2 VSS OUT VSS
  • Excessive Charge Preventing Circuit OUT VDD VSS Load Solar Battery Light R×5VT××C SERIES

R×5VT 1. When R×5VT××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 R×5VT VDD Pin.When R×5VT××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 R×5VT××C (CMOS Output) and R×5VT××A (Nch Open Drain Output). FIG.9 SERIES R×5VT VDD VDD GND OUT FIG.10 APPLICATION HINTS SERIES VDD VDD OUT R GND R×5VT

R×5VT PACKAGE DIMENSIONS (Unit: mm)

  • TO-92
  • SOT-89
  • SOT-23-5 5.2MAX. 4.2MAX. 2.3MAX. 5.2MAX. 12.7MAX. 0.6MAX. 0.55MAX. 1.27 2.54 0.7 0.5MAX. 4.5±0.1 0.4±0.1 0.4±0.1 1.5±0.1 1.6±0.2 1.5±0.1 ±0.1 ±0.1 ±0.1 1.5±0.1 2.5±0.1 0.4 MIN. 4.25MAX. 0.8 ø1.0 0.42 0.47 0.42 2.9±0.2 0.4±0.1 1.9±0.2 (0.95) (0.95) +0.2 –0.1 1.6 +0.2 –0.1 1.1 +0.1 –0.05 0.15 2.8±0.3 0 to 0.1 0.2 MIN. 0.8±0.1

R×5VT TAPING SPECIFICATIONS (Unit: mm)

  • TO-92 (Note) When taping is conducted, the pins of TO-92 are subjected to a particular forming. (Note) TZ type tape is not in the form of a reel, but is packed in a zigzag state in a box.Therefore, the tape can be used as either an RF type tape or an RR type tape,depending upon the pulling out direction (B or F).
  • SOT-23-5
  • SOT-89 RF RR ±1.0 0.3 12.7 12.7 ø 4.0±0.2 6.0±0.5 9.0±0.5 0.5 MAX. 18.0+1.0 –0.5 16.0±0.5 19.0±0.5 24.7 MAX. 1.45 MAX. 0.7±0.2 : Mark Side When TZ type tape is pulled out from the direction B When TZ type tape is pulled out from the direction F User Direction of Feed (Note) User Direction of Feed. T 1 ø T 2 8.0±0.1 5.0 1.5 4.0±0.1 2.0±0.05 1.5±0.1 5.65±0.05 4.7 12±0.3 +0.1 2.5MAX. 0.3±0.1 T R T L 2.0MAX. 0.3±0.1 4.0±0.1 2.0±0.05 4.0±0.1 3.3 3.2 8.0±0.3 1.75±0.1 3.5±0.05 1.5+0.1 ø User Direction of Feed. 5.2 MAX. 4.2 MAX. 2.3 MAX. 5.2 MAX. 12.7 MAX. 0.6 MAX. 0.55 0.7 0.5 MAX. MAX. 2.5 –0.1 +0.4

RICOH COMPANY, LTD. ELECTRONIC DEVICES DIVISION HEADQUARTERS 13-1, Himemuro-cho, Ikeda City, Osaka 563-8501, 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 222-8530, JAPAN Phone 81-45-477-1697 Fax 81-45-477-1694 · 1695 http://www.ricoh.co.jp/LSI/english/ 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