Ricoh R3111x Series User Manual

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R3111x SERIES
LOW VOLTAGE DETECTOR
NO.EA-056-080131
1
OUTLINE
The R3111x 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, resistors for detector threshold setting,
an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does
not require any adjustment.
Three output types, Nch open drain “L” type, Nch open drain “H” type and CMOS type are available.
The R3111x Series are operable at a lower voltage than that for the Rx5VL series, and can be driven by a
single battery.
Six types of packages, TO-92, SOT-89, SOT-23-3, SOT-23-5, SC-82AB, and SON1612-6 are available.
FEATURES
Supply Current ......................................................................Typ. 0.8µA (VDET=1.5V, VDD=−VDET0.1V)
Range of Operating Voltage Range......................................0.7V to 10.0V (T
opt=25°C)
Detector Threshold Range....................................................0.9V to 6.0V
Accuracy Detector Threshold................................................±2.0%
Temperature-Drift Coefficient of Detector Threshold ............Typ. ±100ppm/°C
Output Types.........................................................................Nch Open Drain “L”, Nch Open Drain “H”, and
CMOS
Packages ..............................................................................TO-92, SOT-89, SOT-23-3, SOT-23-5,
SC-82AB, SON1612-6
APPLICATIONS
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
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Summary of Contents

Page 1 - R3111x SERIES

R3111x SERIES LOW VOLTAGE DETECTOR NO.EA-056-080131 1 OUTLINE The R3111x series are CMOS-based voltage detector ICs with high detector threshold ac

Page 2 - BLOCK DIAGRAMS

R3111x 10 TIMING CHART Detector ThresholdtPLHtPLHtPLHGND GND VDDL -VDET +VDET Detector Threshold Released Voltage Minimum Operating VoltagePull-

Page 4 - PIN DESCRIPTIONS

R3111x 12 ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD • R3111x09x to R3111x60x Detector Threshold Detector Threshold Hysteresis Supply Current

Page 5 - ABSOLUTE MAXIMUM RATINGS

R3111x 13 Output Current 1 *3 Output Current 2 *3 Output Delay Time Minimum Operating Voltage Detector Threshold Temperature Coefficient IOUT1[mA]

Page 6 - ELECTRICAL CHARACTERISTICS

R3111x 14 OPERATION • Operation of R3111xxxxA Vref Ra Rb Rc VDDOUTGNDTr.1 NchComparator OUT pin should be pulled-up toVDD or an external voltage l

Page 7 - • R3111x36xA/C Topt=25°C

R3111x 15 • Operation of R3111xxxxB Vref Ra Rb Rc VDDOUTGNDTr.1 NchComparator OUT pin should be pulled-up toVDD or an external voltage level. Block

Page 8 - • R3111x54xA/C Topt=25°C

R3111x 16 • Operation of R3111xxxxC Vref Ra Rb Rc VDD OUT GND Tr.1NchPchComparator Block Diagram (R3111xxxxC) tPLHGND GND VDDL -VDET +VDET Dete

Page 9 - • R3111Q441B Topt=25°C

R3111x 17 TEST CIRCUITS GND VDD VIN ISS R3111x Series OUT GND VDD VINR3111xSeriesOUT 470kΩ 5V VOUT Supply Current Test Circuit Detector Thre

Page 10 - TIMING CHART

R3111x 18 TYPICAL CHARACTERISTICS 1) Supply Current vs. Input Voltage R3111x09xC R3111x27xC Topt=85°C25°C-40°C2.52.01.51.00.50.0Input Voltage V

Page 11

R3111x 19 R3111x45xC 4.84.74.64.54.4+VDET-VDETTemperature Topt(°C)-60 0 20406080-40 -20 100Detector Threshold -VDET(V) 3) Output Voltage vs. I

Page 12 - • R3111x09x to R3111x60x

R3111x 2 BLOCK DIAGRAMS R3111xxxxA R3111xxxxB OUTVDD Vref GND OUTVDD VrefGND R3111xxxxC OUTVDD GNDVref

Page 13

R3111x 20 R3111x45xC R3111x45xA Topt=-40°C25°C85°C6543201Input Voltage VIN(V)0231654Output Voltage VOUT(V) 5V Pull-up 470kΩ6543201Input Voltage

Page 14 - • Explanation of operation

R3111x 21 R3111x45xC R3111x45xC Topt=25°CVDD=4.5V4.0V3.5V3.0V2.5V2.0V1.5V6050403020010VDS(V)0 0.5 1 1.5 2 2.5 3 43.5 4.5Output Current IOUT(mA) V

Page 15 - • Operation of R3111xxxxB

R3111x 22 6) Pch Driver Output Current vs. Input Voltage R3111x09xC R3111x27xC Topt=25°CVDS=0.7V0.5V1.41.21.00.80.60.40.00.2 Input Voltage VIN(V

Page 16 - • Operation of R3111xxxxC

R3111x 23 R3111x45xA tPLHtPHL1001010.10.010.001Load Capacitance COUT(µF)0.0001 0.010.001 0.1Output Delay Time tP(ms) 8) Output Delay Time vs.

Page 17

R3111x 24 TYPICAL APPLICATION • R3111xxxxA CPU Reset Circuit (Nch Open Drain Output) Case 1. Input Voltage to R3111xxxxA is equal to Input Voltage

Page 18 - TYPICAL CHARACTERISTICS

R3111x 25 • Voltage level Indicator Circuit (lighted when the power runs out) (Nch Open Drain Output) R3111xxxxA Series VDD GNDOUT VDD • Detect

Page 19 - Output Voltage VOUT(V)

R3111x 26 TECHNICAL NOTES When R3111xxxxA/B (Nch Open Drain Output Type) is used in Figure A or Figure B, if impedance of Voltage Supply pin, VDD a

Page 20 - Output Voltage V

PACKAGE INFORMATION PE-TO-92-0611 • TO-92 (SC-43A) Unit: mm PACKAGE DIMENSIONS 5.2Max.4.2Max.2.3Max.5.2Max.12.7Min.0.6Max.0.55Max.1.272.541230.70.5

Page 21 - Output Current IOUT(mA)

PACKAGE INFORMATION PE-TO-92-0611 POWER DISSIPATION (TO-92) This specification is at mounted on board. Measurement Result (Topt=25°C,Tjmax=125°C)

Page 22 - Output Current I

PACKAGE INFORMATION PE-SOT-89-071210 • SOT-89 (SC-62) Unit: mm PACKAGE DIMENSIONS 4.5±0.10.4±0.10.4±0.11.5±0.11.6±0.21.5±0.1±0.11.5±0.12.5±0.11.0±

Page 23 - Output Delay Time tP(ms)

R3111x 3 SELECTION GUIDE The package type, the detector threshold, the output type and the taping type for the ICs can be selected at the users’ req

Page 24 - TYPICAL APPLICATION

PACKAGE INFORMATION PE-SOT-89-071210 POWER DISSIPATION (SOT-89) This specification is at mounted on board. Power Dissipation (PD) depends on condit

Page 25 - • Window Comparator Circuit

PACKAGE INFORMATION PE-SOT-23-5-071228 • SOT-23-5 (SC-74A) Unit: mm PACKAGE DIMENSIONS 2.9±0.2 0.4±0.11.9±0.2 (0.95) (0.95)54123+0.2−0.11.6+0.2−0

Page 26

PACKAGE INFORMATION PE-SOT-23-5-071228 POWER DISSIPATION (SOT-23-5) This specification is at mounted on board. Power Dissipation (PD) depends on co

Page 27 - PACKAGE DIMENSIONS

PACKAGE INFORMATION PE-SOT-23-3-0510 • SOT-23-3 (SC-59A) Unit: mm PACKAGE DIMENSIONS 2.9±0.2 0.4±0.11.9±0.2 (0.95) (0.95)3121.6±0.2+0.2–0.11.1+0

Page 28 - POWER DISSIPATION (TO-92)

PACKAGE INFORMATION PE-SOT-23-3-0510 POWER DISSIPATION (SOT-23-3) This specification is at mounted on board. Power Dissipation (PD) depends on con

Page 29 - TAPING REEL DIMENSIONS

PACKAGE INFORMATION PE-SC-82AB-0512 • SC-82AB Unit: mm PACKAGE DIMENSIONS 0.3±0.232141.3±0.20.3±0.1 0.3±0.1(0.7)0.9±0.10 to 0.10.3±0.10.4±0.10.05

Page 30 - POWER DISSIPATION (SOT-89)

PACKAGE INFORMATION PE-SC-82AB-0512 POWER DISSIPATION (SC-82AB) This specification is at mounted on board. Power Dissipation (PD) depends on condit

Page 31 - TAPING SPECIFICATION

PACKAGE INFORMATION PE-SON1612-6-0510 • SON1612-6 Unit: mm PACKAGE DIMENSIONS 64131.6±0.10.125±0.0550.22±0.050.3TYP.1.2±0.050.6MAX.(0.2)(0.3)(0.3

Page 32 - RECOMMENDED LAND PATTERN

PACKAGE INFORMATION PE-SON1612-6-0510 Power Dissipation (SON1612-6) This specification is at mounted on board. Power Dissipation (PD) depends on

Page 33

MARK INFORMATIONME-R3111E-0310 R3111E SERIES MARK SPECIFICATION • TO-92 (SC-43A) 123456 78910 1112 1 to 5 : Series Name: R3111 (fixed) 6, 7 : D

Page 34 - POWER DISSIPATION (SOT-23-3)

R3111x 4 PIN CONFIGURATIONS  TO-92  SOT-89  SOT-23-3  SOT-23-5  SC-82AB  SON1612-6 3 12 (mark side) 3 12 (mark side) 1 23(mark side

Page 35

MARK INFORMATIONME-R3111H-0310 R3111H SERIES MARK SPECIFICATION • SOT-89 (SC-62) 123456 1 to 4 : Product Code (refer to Part Number vs. Product Cod

Page 36 - POWER DISSIPATION (SC-82AB)

MARK INFORMATIONME-R3111Nxx1-0310 R3111Nxx1 SERIES MARK SPECIFICATION • SOT-23-5 (SC-74A) 1 2 3 4 1, 2 : Product Code (refer to Part Number vs

Page 37

MARK INFORMATIONME-R3111Nxx2-0310 R3111Nxx2x SERIES MARK SPECIFICATION • SOT-23-3 (SC-59A) 1 2 3 4 1, 2 : Product Code (refer to Part Number vs. Pr

Page 38

MARK INFORMATIONME-R3111Q-070918 R3111Q SERIES MARK SPECIFICATION • SC-82AB 2 4 1 3 1, 2 : Product Code (refer to Part Number vs. Product Code) 3

Page 39 - MARK INFORMATION

MARK INFORMATION ME-R3111D-070918 R3111D SERIES MARK SPECIFICATION • SON1612-6 1 2 3 4 5 6 1 to 4 : Product Code (refer to Part Number vs. Pr

Page 40

R3111x 5 ABSOLUTE MAXIMUM RATINGS Symbol Item Rating Unit VDD Supply Voltage 12 V VOUT1 Output Voltage (CMOS) VSS−0.3 to VDD+0.3 V VOUT2 Output

Page 41

R3111x 6 ELECTRICAL CHARACTERISTICS • R3111x09xA/C Topt=25°C Symbol Item Conditions Min. Typ. Max. Unit −VDET Detector Threshold 0.882 0.900

Page 42

R3111x 7 • R3111x27xA/C Topt=25°C Symbol Item Conditions Min. Typ. Max. Unit −VDET Detector Threshold 2.646 2.700 2.754 V VHYS Detector Thre

Page 43

R3111x 8 • R3111x45xA/C Topt=25°C Symbol Item Conditions Min. Typ. Max. Unit −VDET Detector Threshold 4.410 4.500 4.590 V VHYS Detector Thr

Page 44

R3111x 9 • R3111Q231B Topt=25°C Symbol Item Conditions Min. Typ. Max. Unit −VDET Detector Threshold 2.254 2.300 2.346 V VHYS Detector Thresh

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