R3112N111A - Ricoh Co., Ltd.

R3112x SERIES

LOW VOLTAGE DETECTOR WITH OUTPUT DELAY

NO. EA-087-070112

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, 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: 0.022µF

• Supply Current ................................................................... Typ. 0.5µA (R3112x271A/C, VDD=2.6V)

• Operating Voltage .............................................................. 0.7 to 6.0V(Topt=25°C)

• Detector Threshold............................................................. 0.9V to 5.0V

• High Accuracy Detector Threshold .................................... ±2.0%

• Low Temperature-Drift Coefficient of Detector Threshold ...Typ. ±100ppm/°C

• Two Output Types .............................................................. Nch Open Drain and CMOS

• Packages ........................................................................... SOT-23-5(Mini-mold),SC-82AB, SON1612-6

APPLICATIONS

• CPU and Logic Circuit Reset

• Battery Checker

• Window Comparator

• Wave Shaping Circuit

• Battery Back-up Circuit

• Power Failure Detector

R3112x

BLOCK DIAGRAMS

R3112xxx1A R3112xxx1C

GND

Vref

OUT

GND

Vref

OUT

SELECTION GUIDE

The package type, the detector threshold, the output type, and the taping type of R3112x Series can be

designated at the users’ request by specifying the part number as follows;

R3112xxx1x-xx-x ← Part Number

↑ ↑ ↑ ↑ ↑

a b c d e

Code Contents

Designation of Package Type;

Q: SC-82AB

N: SOT-23-5

D: SON1612-6

b Setting Detector Threshold (−VDET);

Stepwise setting with a step of 0.1V in the range of 0.9V to 5.0V is possible.

Designation of Output Type;

A: Nch Open Drain

C: CMOS

Designation of Packing or Taping Type;

Ex. SOT-23-5, SC-82AB, SON1612-6: TR is prescribed as standard

directions. (Refer to Taping Specifications)

e Designation of Composition of pin plating;

-F: Lead free plating (SOT-23-5, SC-82AB, SON1612-6)

R3112x

PIN CONFIGURATION

 SOT-23-5  SC82-AB  SON1612-6

1 2 3

(mark side)

1 2 3

6 5 4

PIN DESCRIPTION

• SOT-23-5

Pin No. Symbol Description

1 OUT

Output Pin

(Output “L” at detector threshold, Output “H” at released voltage)

2 VDD Voltage Supply Pin

3 GND Ground Pin

4 NC No Connection

5 CD Pin for External Capacitor (for setting output delay)

• SC-82AB

Pin No. Symbol Description

1 VDD Voltage Supply Pin

2 GND Ground Pin

3 CD Pin for External Capacitor (for setting output delay)

4 OUT

Output Pin

(Output “L” at detector threshold, Output “H” at released voltage)

• SON1612-6

Pin No. Symbol Description

1 OUT

Output Pin

(Output “L” at detector threshold, Output “H” at released voltage)

2 GND Ground Pin

3 CD Pin for External Capacitor (for setting output delay)

4 NC No Connection

5 GND Ground Pin

6 VDD Voltage Supply Pin

R3112x

ABSOLUTE MAXIMUM RATINGS

Symbol Item Rating Unit

VDD Supply Voltage 6.5 V

VOUT1 Output Voltage (CMOS) VSS−0.3 to VDD+0.3 V

VOUT2 Output Voltage (Nch) VSS−0.3 to 6.5 V

IOUT Output Current 20 mA

Power Dissipation (SOT-23-5)* 420

Power Dissipation (SC-82AB)* 380

Power Dissipation (SON1612-6)* 500

Topt Operating Temperature Range −40 to 85 °C

Tstg Storage Temperature Range −55 to 125 °C

Tsolder Lead temperature (Soldering) 260°C, 10s

* ) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum ratings are threshold limit values that must not be exceeded ever 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.

R3112x

ELECTRICAL CHARACTERISTICS

• R3112x091A/C Topt=25°C

Symbol Item Conditions Min. Typ. Max. Unit

−VDET Detector Threshold 0.882 0.900 0.918 V

VHYS Detector Threshold Hysteresis 0.027 0.045 0.063 V

VDD=0.80V 0.6 2.0

ISS Supply Current VDD=1.90V 0.5 2.0

µA

VDDH Maximum Operating Voltage 6.0 V

Topt=25°C 0.70

VDDL Minimum Operating Voltage∗Note1 −40°C

Topt

85°C 0.80

10 120 µA

Nch

VDS=0.05V, VDD=0.70V

VDS=0.50V, VDD=0.85V 0.05 0.90 mA

IOUT Output Current (Driver Output Pin)

Pch

VDS=−2.1V, VDD=4.5V 1.0 3.5 mA

VTCD CD pin Threshold Voltage VDD=0.99V 0.297 0.495 0.693 V

VDS=0.10V, VDD=0.70V 2 70

ICD CD pin Output Current VDS=0.50V, VDD=0.85V 10 400 µA

RD Output Delay Resistance 3.25 6.50 13.00 MΩ

∆−VDET/

∆Topt

Detector Threshold

Temperature Coefficient −40°C

Topt

85°C ±100 ppm/

°C

R3112x

• R3112x271A/C Topt=25°C

Symbol Item Conditions Min. Typ. Max. Unit

−VDET Detector Threshold 2.646 2.700 2.754 V

VHYS Detector Threshold Hysteresis 0.081 0.189 V

VDD=2.60V 1.0 3.0

ISS Supply Current VDD=3.70V 0.5 2.5

µA

VDDH Maximum Operating Voltage 6.0 V

Topt=25°C 0.7

VDDL Minimum Operating Voltage∗Note1 −40°C

Topt

85°C 0.8

Nch

VDS=0.05V,VDD=0.70V 10 120 µA

VDS=0.50V,VDD=1.50V 1.0 3.0 mA

IOUT Output Current (Driver Output Pin)

Pch

VDS=−2.1V,VDD=4.5V 1.0 3.5 mA

VTCD CD pin Threshold Voltage VDD=2.97V 0.891 1.485 2.079 V

VDS=0.1V,VDD=0.7V 2 70 µA

ICD CD pin Output Current VDS=0.5V,VDD=1.5V 200 500

RD Output Delay Resistance 3.25 6.50 13.00 MΩ

∆−VDET/

∆Topt

Detector Threshold

Temperature Coefficient −40°C

Topt

85°C ±100 ppm/

°C

R3112x

• R3112x501A/C Topt=25°C

Symbol Item Conditions Min. Typ. Max. Unit

−VDET Detector Threshold 4.900 5.000 5.100 V

VHYS Detector Threshold Hysteresis 0.150 0.250 0.350 V

VDD=4.9V 1.5 3.0

ISS Supply Current VDD=6.0V 0.6 2.5

µA

VDDH Maximum Operating Voltage 6.0 V

Topt=25°C 0.7

VDDL Minimum Operating Voltage∗Note1 −40°C

Topt

85°C 0.8

Nch

VDS=0.05V,VDD=0.70V 10 120 µA

VDS=0.50V,VDD=1.50V 1.0 3.0 mA

IOUT Output Current

(Driver Output Pin)

Pch

VDS=−2.1V,VDD=6.0V 1.5 4.5

VTCD CD pin Threshold Voltage VDD=5.50V 1.650 2.750 3.850 V

VDS=0.1V, VDD=0.7V 2 70

ICD CD pin Output Current VDS=0.5V, VDD=1.5V 200 500 µA

RD Output Delay Resistance 3.25 6.50 13.00 MΩ

∆−VDET/

∆Topt

Detector Threshold

Temperature Coefficient −40°C

Topt

85°C ±100 ppm/

°C

∗Note1: 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 470kΩ to 5.0V.)

R3112x

ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD

Detector

Threshold

Hysteresis

Range Supply Current 1 Supply Current 2 Output Current 1 Output Current 2

Product Code

−VDET[V] VHYS[V] ISS1[µA] ISS2[µA] IOUT1[mA] IOUT2[mA]

Min. Typ. Max. Min. Typ. Max.

Condi-

tions

Typ. Max.

Condi-

tions

Typ. Max.

Condi-

tions

Min. Typ. Conditions Min. Typ.

R3112x091A/C 0.882 0.900 0.918 0.027 0.045 0.063

R3112x101A/C 0.980 1.000 1.020 0.030 0.050 0.070

0.6 2.0 0.05 0.9

R3112x111A/C 1.078 1.100 1.122 0.033 0.055 0.077

R3112x121A/C 1.176 1.200 1.224 0.036 0.060 0.084

R3112x131A/C 1.274 1.300 1.326 0.039 0.065 0.091

R3112x141A/C 1.372 1.400 1.428 0.042 0.070 0.098

R3112x151A/C 1.470 1.500 1.530 0.045 0.075 0.105

0.7 2.5

0.5 2.0

DS=

0.5V

DD=

0.85V 0.2 1.8

R3112x161A/C 1.568 1.600 1.632 0.048 0.080 0.112

R3112x171A/C 1.666 1.700 1.734 0.051 0.085 0.119

R3112x181A/C 1.764 1.800 1.836 0.054 0.090 0.126

R3112x191A/C 1.862 1.900 1.938 0.057 0.095 0.133

R3112x201A/C 1.960 2.000 2.040 0.060 0.100 0.140

R3112x211A/C 2.058 2.100 2.142 0.063 0.105 0.147

R3112x221A/C 2.156 2.200 2.244 0.066 0.110 0.154

R3112x231A/C 2.254 2.300 2.346 0.069 0.115 0.161

R3112x241A/C 2.352 2.400 2.448 0.072 0.120 0.168

R3112x251A/C 2.450 2.500 2.550 0.075 0.125 0.175

R3112x261A/C 2.548 2.600 2.652 0.078 0.130 0.182

R3112x271A/C 2.646 2.700 2.754 0.081 0.135 0.189

R3112x281A/C 2.744 2.800 2.856 0.084 0.140 0.196

R3112x291A/C 2.842 2.900 2.958 0.087 0.145 0.203

R3112x301A/C 2.940 3.000 3.060 0.090 0.150 0.210

1.0 3.0 0.5 2.5

R3112x311A/C 3.038 3.100 3.162 0.093 0.155 0.217

R3112x321A/C 3.136 3.200 3.264 0.096 0.160 0.224

R3112x331A/C 3.234 3.300 3.366 0.099 0.165 0.231

R3112x341A/C 3.332 3.400 3.468 0.102 0.170 0.238

R3112x351A/C 3.430 3.500 3.570 0.105 0.175 0.245

R3112x361A/C 3.528 3.600 3.672 0.108 0.180 0.252

R3112x371A/C 3.626 3.700 3.774 0.111 0.185 0.259

R3112x381A/C 3.724 3.800 3.876 0.114 0.190 0.266

R3112x391A/C 3.822 3.900 3.978 0.117 0.195 0.273

R3112x401A/C 3.920 4.000 4.080 0.120 0.200 0.280

1.2 3.0 0.6 2.5

R3112x411A/C 4.018 4.100 4.182 0.123 0.205 0.287

R3112x421A/C 4.116 4.200 4.284 0.126 0.210 0.294

R3112x431A/C 4.214 4.300 4.386 0.129 0.215 0.301

R3112x441A/C 4.312 4.400 4.488 0.132 0.220 0.308

R3112x451A/C 4.410 4.500 4.590 0.135 0.225 0.315

R3112x461A/C 4.508 4.600 4.692 0.138 0.230 0.322

R3112x471A/C 4.606 4.700 4.794 0.141 0.235 0.329

R3112x481A/C 4.704 4.800 4.896 0.144 0.240 0.336

R3112x491A/C 4.802 4.900 4.998 0.147 0.245 0.343

R3112x501A/C 4.900 5.000 5.100 0.150 0.250 0.350

−

DET

−

0.1V

1.5 3.0

−

DET

0.1V

0.6 2.5

DS=

0.05V

DD=

0.7V

0.01 0.12 Nch

DS=

0.5V

DD=

1.5V

1.0 3.0

R3112x

Output Current 3 Minimum Operating

Voltage

CD pin Threshold

Voltage

CD pin Output

Current 1

CD pin Output

Current 2

Resistance for

Output Delay

Detector

Threshold

Temperature

IOUT3[mA] VDDL[V] VTCD[V] ICD1[µA] ICD2[µA] RD[MΩ]

∆−VDET/

∆Topt

[ppm/°C]

Condition Min. Typ.

Condi-

tion

Max.

Condi-

tion

Max.

Condi-

tion

Min. Typ. Max.

Condi-

tion

Min. Typ.

Condi-

tion

Min. Typ. Min. Typ. Max.

Condi-

tion

Typ.

0.297 0.495 0.693

0.330 0.550 0.770

0.5V

0.85V

10 400

0.363 0.605 0.847

0.396 0.660 0.924

0.429 0.715 1.001

0.462 0.770 1.078

0.495 0.825 1.155

0.5V

0.85V

50 450

0.528 0.880 1.232

0.561 0.935 1.309

0.594 0.990 1.386

0.627 1.045 1.463

0.660 1.100 1.540

0.693 1.155 1.617

0.726 1.210 1.694

0.759 1.265 1.771

0.792 1.320 1.848

0.825 1.375 1.925

0.858 1.430 2.002

0.891 1.485 2.079

0.924 1.540 2.156

0.957 1.595 2.233

0.990 1.650 2.310

1.023 1.705 2.387

1.056 1.760 2.464

1.089 1.815 2.541

1.122 1.870 2.618

1.155 1.925 2.695

1.188 1.980 2.772

1.221 2.035 2.849

1.254 2.090 2.926

−

21V

4.5V

1.5 3.5

1.287 2.145 3.003

1.320 2.200 3.080

1.353 2.255 3.157

1.386 2.310 3.234

1.419 2.365 3.311

1.452 2.420 3.388

1.485 2.475 3.465

1.518 2.530 3.542

1.551 2.585 3.619

1.584 2.640 3.696

1.617 2.695 3.773

Pch

−

2.1V

6.0V

2.0 4.5

Topt

C 0.7

−

Topt

0.8

DET

)

1.1V

1.650 2.750 3.850

0.1V

0.7V

20 70

0.5V

1.5V

200 500

3.25 6.5 13.0

−

Topt

100

R3112x

OPERATION

VDD

Pch

Tr.1 Tr.2

Nch

OUT

GND

Vref

Schmitt Trigger

Comparator

Current Source

Output Capacitor

Fig. 1 Block Diagram with an external capacitor

HYSTERESIS

RANGE

GND

Delay Time

Output Voltage(OUT)

Supply Voltage(VDD)

VDDL

-VDET

+VDET

Minimum Operating

Voltge

Detector Threshold

Released Voltage

2345

Operation Status

Compartor(-) Pin

Input Voltage

Compartor Output

Tr.1, 2

I VDD

OFF

Rb+Rc

Ra+Rb+Rc

OFF

Output Tr. Nch

Pch

OFF

Indefinite

II VDD

Ra+Rb

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),

Vref

VDD×(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), Vref

VDD×Rb/(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.

R3112x

• Operation of Output Delay

GND

Released Voltage (+VDET)

CD Pin Threshold Voltage (VTCD)

Output Delay Time(tD)

Output Voltage

Capacitor Voltage

Supply Voltage

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=0.69×RD×CD(s)

RD is internal resistor and set at 6.5MΩ(Typ.) typically. CD(F) describes the capacitance value of an external

capacitor. Therefore,

tD=0.69×6.5×106×CD(s)

R3112x

TEST CIRCUITS

∗Pull-up circuit is not necessary for CMOS Output type, or R3112xxxxC.

R3112x

GND

R3112x

OUT

+5V or V

470kΩ

GND

Supply Current Test Circuit Detector Threshold Test Circuit

VDD

OUT

VIN

VDS

GND

IOUT

R3112x

OUT

GND

OUT

R3112x

Nch Driver Output Current Test Circuit Pch Driver Output Current Test Circuit

∗Apply only to CMOS

OUT

+5V or V

470kΩ

GND

R3112x

GND

R3112x

CD Pin Threshold Test Circuit CD Pin Output Current Test Circuit

DET

+2.0 or 0.6V

Input

Voltage

Output Voltage

0.7V

GND

100%

50%

GND

R3112x

+5V

470kΩ

GND

Output Delay Time Test Circuit

R3112x

TYPICAL CHARACTERISTICS

1) Supply Current vs. Input Voltage

R3112x091x R3112x131x

1.5

1.2

0.9

0.6

0.3

Input Voltage V

(V)

Supply Current I

(µA)

01234567

Topt=85°C

-40°C

25°C

1.5

1.2

0.9

0.6

0.3

Input Voltage V

(V)

Supply Current I

(µA)

01234567

Topt=85°C

-40°C

25°C

R3112x271x R3112x451x

1.5

1.2

0.9

0.6

0.3

Input Voltage V

(V)

Supply Current I

(µA)

01234567

Topt=85°C

-40°C

25°C

2.0

1.6

1.2

0.8

0.4

Input Voltage V

(V)

Supply Current I

(µA)

01234567

Topt=85°C

-40°C

25°C

2) Detector Threshold vs. Temperature

R3112x091x R3112x131x

0.98

0.88

0.86

Temperature Topt(°C)

Detector Threshold/Released Voltage

VDET(V)

-50 -25 75 1000 25 50

0.90

0.92

0.94

0.96 +V

DET

-V

DET

1.42

1.28

1.26

Temperature Topt(°C)

Detector Threshold/Released Voltage

DET

(V)

-50 -25 75 1000 25 50

1.30

1.32

1.34

1.36

1.38

1.40

DET

-V

DET

R3112x

R3112x271x R3112x451x

2.90

2.65

2.60

Temperature Topt(°C)

Detector Threshold/Released Voltage

VDET(V)

-50 -25 75 1000 25 50

2.70

2.75

2.80

2.85 +V

DET

-V

DET

4.75

4.40

4.35

Temperature Topt(°C)

Detector Threshold/Released Voltage

DET

(V)

-50 -25 75 1000 25 50

4.45

4.50

4.55

4.60

4.65

4.70 +V

DET

-V

DET

3) Output Voltage vs. Input Voltage

R3112x091x R3112x091A

1.0

0.8

0.6

0.4

0.2

0.0

Input Voltage V

(V)

Output Voltage V

OUT

(V)

0 0.2 0.8 10.4 0.6

Nch Output Type: VDD pull up

Topt=-40°C

25°C

85°C

6.0

5.0

4.0

3.0

2.0

0.0

Input Voltage VIN(V)

Output Voltage VOUT(V)

0 0.2 0.8 10.4 0.6

1.0

5V pull up via 470kΩ

Topt=-40°C

25°C

85°C

R3112x131x R3112x131A

1.5

1.2

0.9

0.6

0.3

Input Voltage V

(V)

Output Voltage V

OUT

(V)

0 0.3 1.2 1.50.6 0.9

Nch Output Type: V

pull up

Topt=-40°C

25°C

85°C

6.0

5.0

4.0

3.0

2.0

0.0

Input Voltage V

(V)

Output Voltage V

OUT

(V)

0 0.3 1.2 1.50.6 0.9

1.0

5V pull up via 470kΩ

Topt=-40°C

25°C

85°C

R3112x

R3112x271x R3112x271A

3.0

2.5

2.0

1.5

1.0

0.5

0.0

Input Voltage V

(V)

Output Voltage V

OUT

(V)

0.0 0.5 1.0 1.5 2.0 2.5 3.0

Nch Output Type: V

pull up

Topt=-40°C

25°C

85°C

6.0

5.0

4.0

3.0

2.0

1.0

0.0

Input Voltage V

(V)

Output Voltage V

OUT

(V)

0.0 0.5 1.0 1.5 2.0 2.5 3.0

5V pull up via 470kΩ

Topt=-40°C

25°C

85°C

R3112x451x R3112x451A

5.0

4.5

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0.0

Input Voltage V

(V)

Output Voltage V

OUT

(V)

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Nch Output Type: V

pull up

Topt=-40°C

25°C85°C

6.0

5.0

4.0

3.0

2.0

1.0

0.0

Input Voltage V

(V)

Output Voltage V

OUT

(V)

0.0 0.5 1.0 2.0 3.5 4.0 5.02.5 3.01.5 4.5

5V pull up via 470kΩ

Topt=-40°C

25°C

85°C

4) Nch Driver Output Current vs. VDS

R3112x091x R3112x131x

1.2

1.0

0.6

0.4

0.2

VDS(V)

Output Current IOUT(mA)

0 0.2 0.4 0.6 0.8 1

0.8

Topt=25°C

VDD=0.85V

0.7V

2.5

2.0

1.5

1.0

0.5

VDS(V)

Output Current IOUT(mA)

0 0.2 0.4 0.6 0.8 1

Topt=25°C

VDD=1.0V

0.85V

0.7V

R3112x

R3112x271x R3112x451x

(V)

Output Current I

OUT

(mA)

0 0.5 1 1.5 2 2.5

Topt=25°C

DD=2.5V

1.0V

1.5V

2.0V

VDS(V)

Output Current IOUT(mA)

0 0.5 1.5 3 3.5 421 2.5

Topt=25°C

VDD=2.5V

VDD=3.0V

VDD=4.0V

VDD=3.5V

1.0V

1.5V

2.0V

5) Nch Driver Output Current vs. Input Voltage

R3112x091x R3112x131x

2.0

1.5

1.0

0.5

0.0

Input Voltage V

(V)

Output Current I

OUT

(mA)

0 0.2 0.4 0.6 0.8 1

Topt=25°C

-40°C

85°C

Input Voltage VIN(V)

Output Current IOUT(mA)

0 0.3 0.6 0.9 1.2 1.5

Topt=-40°C

85°C

25°C

R3112x271x R3112x451x

Input Voltage V

(V)

Output Current I

OUT

(mA)

0 0.5 31 1.5 2 2.5

Topt=-40°C

85°C

25°C

Input Voltage V

(V)

Output Current I

OUT

(mA)

012345

Topt=-40°C

85°C

25°C

R3112x

6) Pch Driver Output Current vs. Input Voltage

R3112x091C R3112x131C

Input Voltage VIN(V)

Output Current IOUT(mA)

01 4 67532

Topt=25°C

VDS=-2.1V

-0.5V

-1.0V

-1.5V

Input Voltage VIN(V)

Output Current IOUT(mA)

01 4 67532

Topt=25°C

VDS=-2.1V

-0.5V

-1.0V

-1.5V

R3112x271C R3112x451C

Input Voltage VIN(V)

Output Current IOUT(mA)

01 4 67532

Topt=25°C

VDS=-2.1V

-0.5V

-1.0V

-1.5V

Input Voltage VIN(V)

Output Current IOUT(mA)

01 4 67532

Topt=25°C

VDS=-2.1V

-0.5V

-1.0V

-1.5V

7) CD Pin Threshold Voltage vs. Temperature

R3112x091x R3112x131x

0.8

0.3

0.2

Temperature Topt(°C)

Pin Threshold Voltage V

TCD

(V)

-50 -25 75 1000 25 50

0.4

0.5

0.6

0.7

=0.99V

1.0

0.5

0.4

Temperature Topt(°C)

Pin Threshold Voltage V

TCD

(V)

-50 -25 75 1000 25 50

0.6

0.7

0.8

0.9

=1.43V

R3112x

R3112x271x R3112x451x

1.9

1.4

1.3

Temperature Topt(°C)

Pin Threshold Voltage V

TCD

(V)

-50 -25 75 1000 25 50

1.5

1.6

1.7

1.8

=2.97V

2.9

2.4

2.3

Temperature Topt(°C)

Pin Threshold Voltage V

TCD

(V)

-50 -25 75 1000 25 50

2.5

2.6

2.7

2.8

=4.95V

8) CD Pin Output Current vs. Input Voltage

R3112x091x R3112x131x

1.0

0.8

0.4

0.2

Input Voltage V

(V)

Pin Output Current I

(mA)

0 0.2 0.4 0.6 0.8 1

0.6

=0.5V

Topt=-40°C

85°C

25°C

1.0

0.8

0.4

0.2

Input Voltage V

(V)

Pin Output Current I

(mA)

0 0.3 0.6 0.9 1.2 1.5

0.6

=0.5V

Topt=-40°C

85°C

25°C

R3112x271x R3112x451x

1.0

0.8

0.4

0.2

Input Voltage VIN(V)

CD Pin Output Current ICD(mA)

0 0.5 1 2.5231.5

0.6

VDS=0.5V

Topt=-40°C

85°C

25°C

1.0

0.8

0.4

0.2

Input Voltage VIN(V)

Pin Output Current I

(mA)

012 435

0.6

=0.5V

Topt=-40°C

85°C

25°C

R3112x

9) CD Pin Output Current vs. VDS (Topt=25°C)

R3112x091x R3112x131x

0.7

0.6

0.3

0.2

0.1

VDS(V)

CD Pin Output Current ICD(mA)

0 0.2 0.4 0.6 0.8 1

0.4

0.5

Topt=25°C

=0.85V

0.7V

1.0

0.7

0.3

0.2

0.1

(V)

Pin Output Current I

(mA)

0 0.2 0.4 0.6 0.8 1

0.6

0.8

0.9

0.4

0.5

Topt=25°C

VDD=1.0V

0.85V

0.7V

R3112x271x R3112x451x

3.0

2.0

1.0

0.5

(V)

Pin Output Current I

(mA)

0 0.5 1 1.5 2 2.5

2.5

1.5

Topt=25°C

VDD=2.5V

1.0V

1.5V

2.0V

4.5

2.0

1.0

0.5

VDS(V)

CD Pin Output Current ICD(mA)

0 0.5 1.5 2.5 3.5 41 2 3

2.5

3.0

3.5

4.0

1.5

Topt=25°C

=4.0V

1.0V

2.0V

1.5V

2.5V

3.5V 3.0V

10) Output Delay Time vs. External Capacitance (Topt=25°C)

R3112x091x R3112x131x

1000

0.01

External Capacitance CD(µF)

Output Deley Time tx(ms)

0.0001 0.001 0.01 0.1

0.1

100

Topt=25°C

PHL

1000

0.01

External Capacitance CD(µF)

Output Delay tx(ms)

0.0001 0.001 0.01 0.1

0.1

100

Topt=25°C

PHL

R3112x

R3112x271x R3112x451x

1000

0.01

External Capacitance C

(µF)

Output Delay Time tx(ms)

0.0001 0.001 0.01 0.1

0.1

100

Topt=25°C

PHL

1000

0.01

External Capacitance C

(µF)

Output Delay Time tx(ms)

0.0001 0.001 0.01 0.1

0.1

100

Topt=25°C

PHL

11) Delay Circuit Resistance vs. Temperature

R3112xxx1x

Temperature Topt(°C)

Delay Circuit Resistance RD(MΩ)

-50 -25 75 1000 25 50

R3112x

TECHNICAL NOTES

VDD

GND OUT

R3112x

GND OUT

R3112x

GND OUT

R3112x

Figure A Figure B Figure C

When R3112xxx1A (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 R3112xxx1C (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 R3112xxx1C with the connection in Figure A or Figure B.

The connection in Figure C may cause the oscillation in both R3112xxx1C (CMOS Output) and R3112xxx1A

(Nch Open Drain Output), therefore do not use R3112xxx1x Series with the connection in Figure C.

PACKAGE INFORMATION PE-SOT-23-5-0610

• SOT-23-5 (SC-74A) Unit: mm

PACKAGE DIMENSIONS

2.9±0.2

0.4±0.1

1.9±0.2

(0.95) (0.95)

123

+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

0.8±0.1

0.2 Min.

TAPING SPECIFICATION

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

φ1.5+0.1

∅1.1±0.1

User Direction of Feed

TAPING REEL DIMENSIONS REUSE REEL (EIAJ-RRM-08Bc)

(1reel=3000pcs)

2±0.5

11.4±1.0

9.0±0.3

13±0.2

∅

∅+1

180

∅0

−1.5

21±0.8

PACKAGE INFORMATION PE-SOT-23-5-0610

POWER DISSIPATION (SOT-23-5)

This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on board.

This specification is based on the measurement at the condition below:

(Power Dissipation (SOT-23-5) is substitution of SOT-23-6.)

Measurement Conditions

Standard Land Pattern

Environment Mounting on Board (Wind velocity=0m/s)

Board Material Glass cloth epoxy plactic (Double sided)

Board Dimensions 40mm × 40mm × 1.6mm

Copper Ratio Top side : Approx. 50% , Back side : Approx. 50%

Through-hole φ0.5mm × 44pcs

Measurement Result

(Topt=25°C,Tjmax=125°C)

Standard Land Pattern Free Air

Power Dissipation 420mW 250mW

Thermal Resistance θja=(125−25°C)/0.42W=263°C/W 400°C/W

0 50 10025 75 85 125 150

Ambient Temperature (°C)

200

100

300

400

250

420

500

600

Power Dissipation P

(mW)

On Board

Free Air

Power Dissipation Measurement Board Pattern

IC Mount Area Unit : mm

RECOMMENDED LAND PATTERN

0.7 MAX.

0.95

1.9

2.4

1.0

(Unit: mm)

PACKAGE INFORMATION PE-SC-82AB-0512

• SC-82AB Unit: mm

PACKAGE DIMENSIONS

0.3±0.2

1.3±0.2

0.3±0.1 0.3±0.1 (0.7)

0.9±0.1

0 to 0.1

0.3±0.1 0.4±0.1

0.05

0.16+0.1

−0.06

2±0.2

2.1±0.3

1.25±0.2

−0.1

TAPING SPECIFICATION

2.0±0.05

4.0±0.1

0.2±0.1 +0.1

2.2

4.0±0.1

1.6MAX.

3.5±0.05

8.0±0.3

1.75±0.1

2.6

∅

1.5

User Direction of Feed

∅1.1±0.1

TAPING REEL DIMENSIONS

(1reel=3000pcs)

2±0.5

13±0.2

180

−1.5

21±0.8

11.4±1.0

9.0±0.3

PACKAGE INFORMATION PE-SC-82AB-0512

POWER DISSIPATION (SC-82AB)

This specification is at mounted on board. Power Dissipation (PD) depends on conditions of mounting on board.

This specification is based on the measurement at the condition below:

Measurement Conditions

Standard Land Pattern

Environment Mounting on Board (Wind velocity=0m/s)

Board Material Glass cloth epoxy plactic (Double sided)

Board Dimensions 40mm × 40mm × 1.6mm

Copper Ratio Top side : Approx. 50% , Back side : Approx. 50%

Through-hole φ0.5mm × 44pcs

Measurement Result

(Topt=25°C,Tjmax=125°C)

Standard Land Pattern Free Air

Power Dissipation 380mW 150mW

Thermal Resistance θja=(125−25°C)/0.38W=263°C/W 667°C/W

0 50 10025 75 85 125 150

Ambient Temperature (°C)

200

100

300

400

150

380

500

600

Power Dissipation P

(mW)

On Board

Free Air

Power Dissipation Measurement Board Pattern

IC Mount Area (Unit : mm)

RECOMMENDED LAND PATTERN

0.8

0.6

0.65

0.650.65

1.9

0.6

0.8

0.6 0.6

0.8

(Unit: mm)

PACKAGE INFORMATION PE-SON1612-6-0510

• SON1612-6 Unit: mm

PACKAGE DIMENSIONS

1.6±0.1

0.125±0.055

0.22±0.05

0.3TYP.

1.2±0.05

0.6MAX.

(0.2)

(0.3)(0.3)

1.6±0.05

0.08

0.5

0.08 M

TAPING SPECIFICATION

1.5 +0.1

4.0±0.1

1.75

1.1±0.1

3.5±0.05

8.0±0.3

1.75±0.1

2.0±0.05

4.0±0.1

0.25±0.1

1.1MAX.

User Direction of Feed

TAPING REEL DIMENSIONS

(1reel=4000pcs)

2±0.5

11.4±1.0

9.0±0.3

13±0.2

∅

∅+1

180

∅0

−1.5

21±0.8

PACKAGE INFORMATION PE-SON1612-6-0510

Power Dissipation (SON1612-6)

This specification is at mounted on board.

Power Dissipation (PD) depends on conditions of mounting on board. This specification is based on the

measurement at the condition below:

Measurement Conditions

Standard Land Pattern

Environment Mounting on Board (Wind velocity=0m/s)

Board Material Glass cloth epoxy plactic (Double sided)

Board Dimensions 40mm × 40mm × 1.6mm

Copper Ratio Top side : Approx. 50%, Back side : Approx.50%

Through-hole φ0.5mm × 24pcs

Measurement Result

(Topt=25°C,Tjmax=125°C)

Standard Land Pattern

Power Dissipation 500mW

Thermal Resistance θja=(125−25°C)/0.5W=200°C/W

0 50 10025 75 85 125 150

Ambient Temperature (°C)

200

100

300

400

600

500

Power Dissipation P

(mW)

On Board

Power Dissipation Measurement Board Pattern

IC Mount Area Unit : mm

RECOMMENDED LAND PATTERN

0.50.28

0.450.45

(Unit: mm)

MARK INFORMATION ME-R3112N-0310

R3112N SERIES MARK SPECIFICATION

• SOT-23-5 (SC-74A)

1 2 3 4 5

: Product Code (refer to Part Number vs. Product Code)

: Lot Number

• Part Number vs. Product Code

Product Code Product Code Product Code Product Code

Part Number

1 2 3

Part Number

1 2 3

Part Number

123

R3112N091A 2 0 9 R3112N301A 2 3 0 R3112N091C 3 0 9 R3112N301C 3 3 0

R3112N101A 2 1 0 R3112N311A 2 3 1 R3112N101C 3 1 0 R3112N311C 3 3 1

R3112N111A 2 1 1 R3112N321A 2 3 2 R3112N111C 3 1 1 R3112N321C 3 3 2

R3112N121A 2 1 2 R3112N331A 2 3 3 R3112N121C 3 1 2 R3112N331C 3 3 3

R3112N131A 2 1 3 R3112N341A 2 3 4 R3112N131C 3 1 3 R3112N341C 3 3 4

R3112N141A 2 1 4 R3112N351A 2 3 5 R3112N141C 3 1 4 R3112N351C 3 3 5

R3112N151A 2 1 5 R3112N361A 2 3 6 R3112N151C 3 1 5 R3112N361C 3 3 6

R3112N161A 2 1 6 R3112N371A 2 3 7 R3112N161C 3 1 6 R3112N371C 3 3 7

R3112N171A 2 1 7 R3112N381A 2 3 8 R3112N171C 3 1 7 R3112N381C 3 3 8

R3112N181A 2 1 8 R3112N391A 2 3 9 R3112N181C 3 1 8 R3112N391C 3 3 9

R3112N191A 2 1 9 R3112N401A 2 4 0 R3112N191C 3 1 9 R3112N401C 3 4 0

R3112N201A 2 2 0 R3112N411A 2 4 1 R3112N201C 3 2 0 R3112N411C 3 4 1

R3112N211A 2 2 1 R3112N421A 2 4 2 R3112N211C 3 2 1 R3112N421C 3 4 2

R3112N221A 2 2 2 R3112N431A 2 4 3 R3112N221C 3 2 2 R3112N431C 3 4 3

R3112N231A 2 2 3 R3112N441A 2 4 4 R3112N231C 3 2 3 R3112N441C 3 4 4

R3112N241A 2 2 4 R3112N451A 2 4 5 R3112N241C 3 2 4 R3112N451C 3 4 5

R3112N251A 2 2 5 R3112N461A 2 4 6 R3112N251C 3 2 5 R3112N461C 3 4 6

R3112N261A 2 2 6 R3112N471A 2 4 7 R3112N261C 3 2 6 R3112N471C 3 4 7

R3112N271A 2 2 7 R3112N481A 2 4 8 R3112N271C 3 2 7 R3112N481C 3 4 8

R3112N281A 2 2 8 R3112N491A 2 4 9 R3112N281C 3 2 8 R3112N491C 3 4 9

R3112N291A 2 2 9

R3112N501A 2 5 0

R3112N291C 3 2 9

R3112N501C 3 5 0

MARK INFORMATION ME-R3112Q-0310

R3112Q SERIES MARK SPECIFICATION

• SC-82AB

: Product Code (refer to Part Number vs. Product Code)

: Lot Number

• Part Number vs. Product Code

Product Code Product Code Product Code Product Code

Part Number

R3112Q091A A K R3112Q301A D A R3112Q091C A V R3112Q301C D L

R3112Q101A B A R3112Q311A D B R3112Q101C B L R3112Q311C D M

R3112Q111A B B R3112Q321A D C R3112Q111C B M R3112Q321C D N

R3112Q121A B C R3112Q331A D D R3112Q121C B N R3112Q331C D P

R3112Q131A B D R3112Q341A D E R3112Q131C B P R3112Q341C D Q

R3112Q141A B E R3112Q351A D F R3112Q141C B Q R3112Q351C D R

R3112Q151A B F R3112Q361A D G R3112Q151C B R R3112Q361C D S

R3112Q161A B G R3112Q371A D H R3112Q161C B S R3112Q371C D T

R3112Q171A B H R3112Q381A D J R3112Q171C B T R3112Q381C D U

R3112Q181A B J R3112Q391A D K R3112Q181C B U R3112Q391C D V

R3112Q191A B K R3112Q401A E A R3112Q191C B V R3112Q401C E L

R3112Q201A C A R3112Q411A E B R3112Q201C C L R3112Q411C E M

R3112Q211A C B R3112Q421A E C R3112Q211C C M R3112Q421C E N

R3112Q221A C C R3112Q431A E D R3112Q221C C N R3112Q431C E P

R3112Q231A C D R3112Q441A E E R3112Q231C C P R3112Q441C E Q

R3112Q241A C E R3112Q451A E F R3112Q241C C Q R3112Q451C E R

R3112Q251A C F R3112Q461A E G R3112Q251C C R R3112Q461C E S

R3112Q261A C G R3112Q471A E H R3112Q261C C S R3112Q471C E T

R3112Q271A C H R3112Q481A E J R3112Q271C C T R3112Q481C E U

R3112Q281A C J R3112Q491A E K R3112Q281C C U R3112Q491C E V

R3112Q291A C K

R3112Q501A W A

R3112Q291C C V

R3112Q501C W L

MARK INFORMATION ME-R3112D-0409

R3112D SERIES MARK SPECIFICATION

• SON1612-6

1 2 3

4 5 6

～

: Product Code (refer to Part Number vs. Product Code)

: Lot Number

• Part Number vs. Product Code

Product Code Product Code Product Code Product Code

Part Number

234

Part Number

1 2 3 4

Part Number

1 2 3 4

R3112D091A B 0 9 A R3112D301A B 3 0 A R3112D091C B 0 9 C R3112D301C A 3 0 C

R3112D101A B 1 0 A R3112D311A B 3 1 A R3112D101C B 1 0 C R3112D311C A 3 1 C

R3112D111A B 1 1 A R3112D321A B 3 2 A R3112D111C B 1 1 C R3112D321C A 3 2 C

R3112D121A B 1 2 A R3112D331A B 3 3 A R3112D121C B 1 2 C R3112D331C A 3 3 C

R3112D131A B 1 3 A R3112D341A B 3 4 A R3112D131C B 1 3 C R3112D341C A 3 4 C

R3112D141A B 1 4 A R3112D351A B 3 5 A R3112D141C B 1 4 C R3112D351C A 3 5 C

R3112D151A B 1 5 A R3112D361A B 3 6 A R3112D151C B 1 5 C R3112D361C A 3 6 C

R3112D161A B 1 6 A R3112D371A B 3 7 A R3112D161C B 1 6 C R3112D371C A 3 7 C

R3112D171A B 1 7 A R3112D381A B 3 8 A R3112D171C B 1 7 C R3112D381C A 3 8 C

R3112D181A B 1 8 A R3112D391A B 3 9 A R3112D181C B 1 8 C R3112D391C A 3 9 C

R3112D191A B 1 9 A R3112D401A B 4 0 A R3112D191C B 1 9 C R3112D401C A 4 0 C

R3112D201A B 2 0 A R3112D411A B 4 1 A R3112D201C B 2 0 C R3112D411C A 4 1 C

R3112D211A B 2 1 A R3112D421A B 4 2 A R3112D211C B 2 1 C R3112D421C A 4 2 C

R3112D221A B 2 2 A R3112D431A B 4 3 A R3112D221C B 2 2 C R3112D431C A 4 3 C

R3112D231A B 2 3 A R3112D441A B 4 4 A R3112D231C B 2 3 C R3112D441C A 4 4 C

R3112D241A B 2 4 A R3112D451A B 4 5 A R3112D241C B 2 4 C R3112D451C A 4 5 C

R3112D251A B 2 5 A R3112D461A B 4 6 A R3112D251C B 2 5 C R3112D461C A 4 6 C

R3112D261A B 2 6 A R3112D471A B 4 7 A R3112D261C B 2 6 C R3112D471C A 4 7 C

R3112D271A B 2 7 A R3112D481A B 4 8 A R3112D271C B 2 7 C R3112D481C A 4 8 C

R3112D281A B 2 8 A R3112D491A B 4 9 A R3112D281C B 2 8 C R3112D491C A 4 9 C

R3112D291A B 2 9 A

R3112D501A B 5 0 A R3112D291C B 2 9 C R3112D501C A 5 0 C