Datasheet R3111xxx1A-C Datasheet (RICOH)

查询R3111A.91A-供应商

’98.Dec.05

LOW VOLTAGE DETECTOR

R3111xxx1A/C Series

■

OUTLINE

The R3111 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 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. Two output types, Nch open drain type and CMOS type are available. The R3111 Series are operable at a lower voltage than that for the RX5VL Series, and can be driven by a single battery. Four types of packages, TO-92, SOT-89, SOT-23-5 and SC-82AB are available.

■

FEATURES

Ultra-low Supply Current............................................................... TYP. 0.8µA (V

●

Wide Range of Operating Voltage.................................................. 0.7 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.

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

●

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

●

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

●

Four Types of Packages.................................................................. TO-92, SOT-89(Mini-power Mold), SOT-23-5 (Mini-

●

mold), SC-82AB

=1.5V)

DD

■

APPLICATIONS

CPU and Logic Circuit Reset

●

Battery Checker

●

Window Comparator

●

Wave Shaping Circuit

●

Battery Back-up Circuit

●

Power Failure Detector

●

■

BLOCK DIAGRAMS

R3111XXX1A R3111XXX1C

V

DD

Vref

OUT

GND

V

DD

OUT

Vref

GND

Rev.1.10 - 1 -

■

TIMING CHART

Release V oltage +V

Supply V oltage

Output V oltage (OUT)

■

DEFINITION OF OUTPUT DELAY TIME

Output Delay Time t

is defined as follows:

PLH

Detector Threshold -V

(VDD)

Minimum Operating Voltage V

DET

DET

Detector Threshold Hysteresis

SS

V

SS

t

PLH

1. In the case of Nch Open Drain Output:

Under the condition of the output pin (OUT) is pulled up through a resistor of 470kΩ to 5V, the time interval between the rising edge of V

pulse from 0.7V to (+V

DD

)+ 2.0V and becoming of the output voltage to 2.5V.

DET

2. In the case of CMOS Output: The time interval between the rising edge of V (V

2) V.

DD

/

+VDET + 2.0V

Input V oltage (V

DD)

pulse from 0.7V to (+V

DD

)+ 2.0V and becoming of the output voltage to

DET

Input V oltage

DD

)

(V

+V

DET

+ 2.0V

Output V oltage

0.7V

GND

5.0V

+V

DET

0.7V

GND

+2.0V

Output V oltage

DET

+2.0V

2.5V

GND

t

PHL

t

PLH

+V

2

GND

t

PHL

Nch Open Drain Output CMOS Output

t

PLH

Rev.1.10 - 2 -

■

SELECTION GUIDE

The package type, the detector threshold, the output type and the taping type of R3111 Series can be designated at the users’ request by specifying the part number as follows;

R3111×××1×-××

↑↑ ↑ ↑

ab c d

Code Contents

Designation of Package Type;

a

b

c

d

E: TO-92 Q: SC-82AB H: SOT-89 N: SOT-23-5

Setting Detector Threshold (-V

Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible.

Designation of Output Type;

A: Nch Open Drain C: CMOS

Designation of Packing or Taping Type ;

Ex.TO-92: TZ, SOT-89: T1,

SOT-23-5, SC-82AB: TR are prescribed as standard directions.

(Refer to Taping Specifications.) Antistatic bag for samples: C

←Part Number

DET

);

Rev.1.10 - 3 -

■

PIN CONFIGURATION

●

TO-92

●

SOT-89

●

SOT-23-5

●

SC-82AB

43

(mark side)

12

●

SC-2AB

(mark side)

123

■

PIN DESCRIPTION

●

TO-92

(mark side)

123

●

SOT-89

54

(mark side)

123

●

SOT-23-5

Pin No. Symbol Pin No. Symbol Pin No. Symbol Pin No. Symbol

1V 2 GND 2 V

DD

1 OUT 1 OUT 1 OUT

DD

2V

DD

2V

3 OUT 3 GND 3 GND 3 NC

4 NC 4 GND 5NC

■

ABSOLUTE MAXIMUM RATINGS

Symbol Item Rating Unit

V

DD

V

OUT1

V

OUT2

I

OUT

P

D

P

D

Topt

Tstg

Tsolder

Supply Voltage 12 V Output Voltage (CMOS) VSS-0.3 to VDD+0.3 V Output Voltage (Nch) VSS-0.3 to 12 V Output Current 70 mA Power Dissipation 1* Power Dissipation 2* Operating Temperature Range Storage Temperature Range Lead temperature (Soldering)

Note1 Note2

300 mW 150 mW

-40 to 85

-55 to 125

260°C, 10s

°C °C

*Note 1: applied to SOT-89 and TO-92 *Note 2: applied to SOT-23-5 and SC-82AB

DD

Rev.1.10 - 4 -

■

ELECTRICAL CHARACTERISTICS

R3111x091A/C Topt=25°C

●

Symbol Item Conditions MIN. TYP. MAX. Unit

-V V

V V

I

DET

HYS

SS

DDH

DDL

Detector Threshold 0.882 0.900 0.918 V

Detector Threshold Hysteresis 0.027 0.045 0.063 V

Supply Current

V

=0.80V

DD

2.90V

0.8

0.9

2.4

2.7

µA

Maximum Operating Voltage 10 V

Minimum Operating

Voltage*

Note1

Topt=25°C

-40°C≤Topt≤85°C

0.55 0.70

0.65 0.80

V

Nch

=0.05V,VDD=0.70V

V

I

OUT

t

PLH

∆-V

/∆T

DET

R3111x181A/C Topt=25°C

●

Detector Threshold Temperature

Output Current

(Driver Output Pin)

Output Delay Time*

Coefficient

Note2

DS

V

=0.50V,VDD=0.85V

DS

Pch

=-2.1V,VDD=4.5V 1.0 2.0

V

DS

-40°C≤Topt≤85°C ±100 ppm/°C

0.01

0.05

0.05

0.50

100

mA

mA

µs

Symbol Item Conditions MIN. TYP. MAX. Unit

-V V

V V

I

DET

HYS

SS

DDH

DDL

Detector Threshold 1.764 1.800 1.836 V

Detector Threshold Hysteresis 0.054 0.090 0.126 V

Supply Current

V

=1.70V

DD

3.80V

0.8

1.0

2.4

3.0

µA

Maximum Operating Voltage 10 V

Minimum Operating

Voltage*

Note1

Topt=25°C

-40°C≤Topt≤85°C

0.55 0.70

0.65 0.80

V

Nch V

∆-V

I

t

OUT

PLH

DET

/∆T

Output Current

(Driver Output Pin)

Output Delay Time*

Note2

Detector Threshold Temperature

Coefficient

=0.05V,VDD=0.70V

DS

V

=0.50V,VDD=0.85V

DS

Pch V

=-2.1V,VDD=4.5V 1.0 2.0

DS

-40°C≤Topt≤85°C ±100 ppm/°C

0.01

1.00

0.05

2.00

100

mA

mA

µs

Rev.1.10 - 5 -

R3111x271A/C Topt=25°C

●

Symbol Item Conditions MIN. TYP. MAX. Unit

-V V

V V

I

DET

HYS

SS

DDH

DDL

Detector Threshold 2.646 2.700 2.754 V

Detector Threshold Hysteresis 0.081 0.135 0.189 V

Supply Current

V

=2.60V

DD

4.70V

0.9

1.1

2.7

3.3

µA

Maximum Operating Voltage 10 V

Minimum Operating

Voltage*

Note1

Topt=25°C

-40°C≤Topt≤85°C

0.55 0.70

0.65 0.80

V

Nch V

=0.05V,VDD=0.70V

I

OUT

t

PLH

∆-V

/∆T

DET

R3111x361A/C Topt=25°C

●

Detector Threshold Temperature

Output Current

(Driver Output Pin)

Output Delay Time*

Coefficient

Note2

DS

V

=0.50V,VDD=1.50V

DS

Pch V

=-2.1V,VDD=4.5V 1.0 2.0

DS

-40°C≤Topt≤85°C ±100 ppm/°C

0.01

1.00

0.05

2.00

100

mA

mA

µs

Symbol Item Conditions MIN. TYP. MAX. Unit

-V V

V V

I

DET

HYS

SS

DDH

DDL

Detector Threshold 3.528 3.600 3.672 V

Detector Threshold Hysteresis 0.108 0.180 0.252 V

Supply Current

V

=3.47V

DD

5.60V

1.0

1.2

3.0

3.6

µA

Maximum Operating Voltage 10 V

Minimum Operating

Voltage*

Note1

Topt=25°C

-40°C≤Topt≤85°C

0.55 0.70

0.65 0.80

V

Nch V

∆-V

I

t

OUT

PLH

DET

/∆T

Output Current

(Driver Output Pin)

Output Delay Time*

Note2

Detector Threshold Temperature

Coefficient

=0.05V,VDD=0.70V

DS

V

=0.50V,VDD=1.50V

DS

Pch V

=-2.1V,VDD=4.5V 1.0 2.0

DS

-40°C≤Topt≤85°C ±100 ppm/°C

0.01

1.00

0.05

2.00

100

mA

mA

µs

Rev.1.10 - 6 -

R3111x451A/C Topt=25°C

●

Symbol Item Conditions MIN. TYP. MAX. Unit

-V V

V V

I

DET

HYS

SS

DDH

DDL

Detector Threshold 4.410 4.500 4.590 V

Detector Threshold Hysteresis 0.135 0.225 0.315 V

Supply Current

V

=4.34V

DD

6.50V

1.1

1.3

3.3

3.9

µA

Maximum Operating Voltage 10 V

Minimum Operating

Voltage*

Note1

Topt=25°C

-40°C≤Topt≤85°C

0.55 0.70

0.65 0.80

V

Nch V

=0.05V,VDD=0.70V

I

OUT

t

PLH

∆-V

/∆T

DET

R3111x541A/C Topt=25°C

●

Detector Threshold Temperature

Output Current

(Driver Output Pin)

Output Delay Time*

Coefficient

Note2

DS

=0.50V,VDD=1.50V

V

DS

Pch V

=-2.1V,VDD=8.0V 1.5 3.0

DS

-40°C≤Topt≤85°C ±100 ppm/°C

0.01

1.00

0.05

2.00

100

mA

mA

µs

Symbol Item Conditions MIN. TYP. MAX. Unit

-V V

V V

I

DET

HYS

SS

DDH

DDL

Detector Threshold 5.292 5.400 5.508 V

Detector Threshold Hysteresis 0.162 0.270 0.378 V

Supply Current

V

=5.20V

DD

7.40V

1.2

1.4

3.6

4.2

µA

Maximum Operating Voltage 10 V

Minimum Operating

Voltage*

Note1

Topt=25°C

-40°C≤Topt≤85°C

0.55 0.70

0.65 0.80

V

Nch

=0.05V,VDD=0.70V

∆-V

I

t

OUT

PLH

DET

/∆T

Output Current

(Driver Output Pin)

Output Delay Time*

Note2

Detector Threshold Temperature

Coefficient

V

DS

V

=0.50V,VDD=1.50V

DS

Pch

=-2.1V,VDD=8.0V 1.5 3.0

V

DS

-40°C≤Topt≤85°C ±100 ppm/°C

0.01

1.00

0.05

2.00

100

mA

mA

µs

*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.)

*Note2: In the case of CMOS Output Type: The time interval between the rising edge of V

)+2.0V and output voltage level becoming to VDD/2.

(+V

DET

DD

input pulse from

0.7V to

In the case of Nch Open Drain Output Type: Output pin is pulled up with a resistance of 470kΩ to 5.0V, The time interval between the rising edge of V

DD

input pulse from

0.7V to (+V

)+2.0V and output voltage level

DET

becoming to 2.5V.

Rev.1.10 - 7 -

■

ELECTRICAL CHARACTERISRICS BY DETECTOR THRESHOLD

R3111x09x to R3111x60x

●

Detector Threshold

Hysteresis

HYS

[V]

Supply Current 1 Supply Current 2

SS1

[µA] I

I

SS2

[µA]

Part

Number

Detector Threshold

DET

[V] V

-V

MIN. TYP. MAX. MIN. TYP. MAX. Condition TYP. MAX. Condition TYP. MAX.

R3111x091x 0.882 0.900 0.918 0.027 0.045 0.063 0.9 2.7 R3111x101x 0.980 1.000 1.020 0.030 0.050 0.070 R3111x111x 1.078 1.100 1.122 0.033 0.055 0.077 R3111x121x 1.176 1.200 1.224 0.036 0.060 0.084 R3111x131x 1.274 1.300 1.326 0.039 0.065 0.091 R3111x141x 1.372 1.400 1.428 0.042 0.070 0.098

0.8 2.4 R3111x151x 1.470 1.500 1.530 0.045 0.075 0.105 R3111x161x 1.568 1.600 1.632 0.048 0.080 0.112 R3111x171x 1.666 1.700 1.734 0.051 0.085 0.119 R3111x181x 1.764 1.800 1.836 0.054 0.090 0.126 R3111x191x 1.862 1.900 1.938 0.057 0.095 0.133 R3111x201x 1.960 2.000 2.040 0.060 0.100 0.140

DD

V

=

DET

(-V

-0.10V

)

R3111x211x 2.058 2.100 2.142 0.063 0.105 0.147 R3111x221x 2.156 2.200 2.244 0.066 0.110 0.154 R3111x231x 2.254 2.300 2.346 0.069 0.115 0.161 R3111x241x 2.352 2.400 2.448 0.072 0.120 0.168 R3111x251x 2.450 2.500 2.550 0.075 0.125 0.175

0.9 2.7 1.1 3.3 R3111x261x 2.548 2.600 2.652 0.078 0.130 0.182

R3111x271x 2.646 2.700 2.754 0.081 0.135 0.189 R3111x281x 2.744 2.800 2.856 0.084 0.140 0.196 R3111x291x 2.842 2.900 2.958 0.087 0.145 0.203 R3111x301x 2.940 3.000 3.060 0.090 0.150 0.210 R3111x311x 3.038 3.100 3.162 0.093 0.155 0.217 R3111x321x 3.136 3.200 3.264 0.096 0.160 0.224 R3111x331x 3.234 3.300 3.366 0.099 0.165 0.231 R3111x341x 3.332 3.400 3.468 0.102 0.170 0.238 R3111x351x 3.430 3.500 3.570 0.105 0.175 0.245 R3111x361x 3.528 3.600 3.672 0.108 0.180 0.252

DD

=

V

DET

(-V

-0.13V

)

1.0 3.0 1.2 3.6

DD

V

DET

(-V +2.0V

=

)

R3111x371x 3.626 3.700 3.774 0.111 0.185 0.259 R3111x381x 3.724 3.800 3.876 0.114 0.190 0.266 R3111x391x 3.822 3.900 3.978 0.117 0.195 0.273 R3111x401x 3.920 4.000 4.080 0.120 0.200 0.280 R3111x411x 4.018 4.100 4.182 0.123 0.205 0.287 R3111x421x 4.116 4.200 4.284 0.126 0.210 0.294 R3111x431x 4.214 4.300 4.386 0.129 0.215 0.301 R3111x441x 4.312 4.400 4.488 0.132 0.220 0.308 R3111x451x 4.410 4.500 4.590 0.135 0.225 0.315 R3111x461x 4.508 4.600 4.692 0.138 0.230 0.322

DD

=

V

DET

(-V

-0.16V

)

1.1 3.3 1.3 3.9

R3111x471x 4.606 4.700 4.794 0.141 0.235 0.329 R3111x481x 4.704 4.800 4.896 0.144 0.240 0.336 R3111x491x 4.802 4.900 4.998 0.147 0.245 0.343 R3111x501x 4.900 5.000 5.100 0.150 0.250 0.350 R3111x511x 4.998 5.100 5.202 0.153 0.255 0.357 R3111x521x 5.096 5.200 5.304 0.156 0.260 0.364 R3111x531x 5.194 5.300 5.406 0.159 0.265 0.371 R3111x541x 5.292 5.400 5.508 0.162 0.270 0.378 R3111x551x 5.390 5.500 5.610 0.165 0.275 0.385 R3111x561x 5.488 5.600 5.712 0.168 0.280 0.392

DD

V

=

DET

(-V

-0.20V

)

1.2 3.6

R3111x571x 5.586 5.700 5.814 0.171 0.285 0.399 R3111x581x 5.684 5.800 5.916 0.174 0.290 0.406 R3111x591x 5.782 5.900 6.018 0.177 0.295 0.413 R3111x601x 5.880 6.000 6.120 0.180 0.300 0.420

Note 1:In the case of CMOS Output parts; when the voltage is forced to VDD from 0.7V to (+V

DET

)+2.0V, time interval between the rising edge of VDD and the reaching poi nt at 50% of Output Voltage. In the case of Nch open Drain Output parts : Output pin is pulled up to 5V throug h 470kΩ,and when the voltage is forced to V

DD

from 0.7V to (+V

DET

)+2.0V, time interval between the rising edge of VDD and the reaching point ar 50% of Output

Voltage.

DD

Note 2:V

value when Output Voltage is equal or less than 0.1V. In the case of Nch Open Drain Output parts, Output pin is pulled up to 5V through 470kΩ resistor. Condition 1: Topt=25°C Condition 2: -40°C≤Topt≤85°C

1.0 3.0

1.4 4.2

Rev.1.10 - 8 -

Output Current 1 Output Current 2

OUT1

I

[mA] I

Condition MIN. TYP.

C on d it io n

VDD=

0.85V

OUT2

[mA]

Output Delay

Time

PLH

[µs]

t

Minimum Operating

Voltage

DDL

V

[V]

Detector Threshold

Temperature Coefficient

∆

DET

V

MIN. TYP. MAX. TYP. MAX. Condition TYP.

0.05 0.5

/∆T[ppm/°C]

Nch V V

DS

=0.05V

DD

=0.7V

0.01 0.05

Nch

DS

V

0.5V

VDD=

1.0V

=

V

1.5V

DD

=

0.2 1.0

1.0 2.0

Note 1

100

Note 2

Condi-

tion 1

0.55

Condi-

tion 2

0.65

Note 2

Condi-

tion 1

0.70

Condi-

tion 2

0.80

-40°C Topt

≤85°

≤

±

100

C

Rev.1.10 - 9 -

■

OPERATION

V

DD

Supply Voltage (VDD)

Output Voltage (V

OUT

)

Vref

DET

Released Voltage(+V Detector Threshold(-V

Minimum Operating Voltage

GND

GND

)

DET

Ra

Pch

OUT

Rb

Comparator

Nch

Rc

GND

Figure 1. Block Diagram

12 3 4 5

)

Detector Threshold Hysteresis

A

B

t

PLH

Step 12345

Comparator Pin Input Voltage

Comparator Output H L

Tr.1 OFF ON

Pch ON OFF

Output Tr.

Nch OFF ON

I II III IV V

Indefinite Indefinite Indefinite Indefinite

+

Rb

RcRb

+

RbRa

I.

II.

DD

V

++

RcRbRa

DD

V

ON OFF

OFF ON

ON OFF

LH

Figure 2. Operation Diagram

Step 1. Output Voltage is equal to Supply Voltage (V Step 2. At Point “A”, Vref≥V

×(Rb+Rc)/(Ra+Rb+Rc) is true, as a result, the output of comparator is reverse, and

DD

DD

).

output voltage becomes to GND level. The voltage level of Point A means detector threshold voltage, or (-V

).

DET

Step 3. When the supply voltage is less than minimum operating voltage, the operation of output transistor becomes

indefinite, and in the case that output is pulled up to V

, Output voltage equals to VDD voltage.

DD

Step 4. Output Voltage equals to GND level. Step 5. At Point “B”, Vref≤V

the supply voltage, or (V

×Rb/(Ra+Rb) is true, Output of the comparator is reverse, and output voltage is equal to

DD

). The voltage level of Point B means released voltage, or (+V

DD

DET

).

* The difference between Released Voltage and Detector Threshold Voltage is Detector Threshold Hysteresis.

Rev.1.10 - 10 -

■

TEST CIRCUITS

ISS

V

DD

VDD

R3111

V

V

IN

R3111X

Series

OUT

IN

Series

X

OUT

5.0V

470K

V

OUT

GND

GND

*Pull-up circuit is not ne cessary for

CMOS Output type, or R3111XXXXC

Figure 3. Supply Current Test Circuit Figure 4. Detector Threshold Test Circuit

.

GND

VDS

OUT

I

OUT

VDD- VDS

V

DD

I

OUT

OUT

IN

V

V

DS

R3111

V

IN

X

Series

VDD

R3111X

Series

GND

*Apply only to CMOS

Figure 5. Nch Driver Output Current Test Circuit Figure 6. Pch Driver Output Current Test Circuit

+V

DET

+2.0V

0.7V V

+5.0V

+V

DET

V

DD

R

OUT

470K

XXX

Series

1A

OUT

OUT

C

OUT

V

SS

SS

P.G.

R3111

GND

+2.0V

0.7V V

SS

P.G.

R

IN

100K

V

DD

C

R3111

IN

GND

XXX

Series

1A

OUT

Figure 7. Output Delay Time Test Circuit (1) Figure 8. Output Delay Time Test Circuit (2)

R

OUT

470K

+5.0V

OUT

V

SS

Rev.1.10 - 11 -

■

TYPICAL CHARACTERISTICS

1) Supply Current vs. Input Voltage R3111x091C R3111x271C

2.5

2.0

(µA)

SS

1.5

1.0

0.5

Supply Current I

Topt=85°C

25°C

-40°C

2.0

1.5

(µA)

SS

1.0

0.5

Supply Current I

Topt=85°C

25°C

-40°C

0.0 0246810

Input Voltage V

IN

(V)

R3111x451C

2.0

1.5

(µA)

SS

1.0

0.5

Supply Current I

0.0 0246810

Input Voltage V

Topt=85°C

IN

(V)

25°C

-40°C

2) Detector Threshold Hysteresis vs. Temperature R3111x091C R3111x271C

1.00

0.98

(V)

DET

0.96

0.94

0.92

0.90

0.88

0.86

Detector Threshold -V

0.84

-60 0 20406080-40 -20 100 T emperature Topt(°C)

+V

DET

-V

DET

0.0 0246810

Input Voltage V

2.9

(V)

DET

2.8

2.7

2.6

Detector Threshold -V

2.5

-60 0 20406080-40 -20 100 T emperature Topt(°C)

+V

-V

DET

DET

IN

(V)

Rev.1.10 - 12 -

(V)

DET

4.8

4.7

4.6

R3111x451C

+V

DET

4.5

-V

DET

Detector Threshold -V

4.4

-60 0 20406080-40 -20 100 T emperature Topt(°C)

3) Output Voltage vs. Input Voltage R3111x091C R3111x091A

DD

1.6

V

1.4

(V)

1.2

OUT

1.0

0.8 85°C

0.6

25°C

0.4

Output Voltage V

0.2

0.0

Topt=-40°C

0 0.6 0.8 1 1.2 1.40.2 0.4 1.6

Input Voltage V

IN

R3111x271C R3111x271A

DD

4.0

3.5

(V)

3.0

OUT

2.5

2.0

1.5

85°C

1.0

Output Voltage V

25°C

0.5

0.0

Topt=-40°C

0 1.5 2 2.5 3 3.50.5 1 4

Input Voltage V

V

Pull-up 470kΩ

(V)

Pull-up 470kΩ

IN

(V)

5V Pull-up 470kΩ

(V)

OUT

6

5

T opt=-40°C

4

25°C

3

2

Output Voltage V

(V)

OUT

85°C

1 0

0 0.6 0.8 1 1.2 1.40.2 0.4 1.6

6

5

Input Voltage V

T opt=-40°C

IN

5V Pull-up 470kΩ

4

25°C

3

85°C

0 1.5 2 2.5 3 3.50.5 1 4

Input Voltage V

IN

Output Voltage V

2

1 0

(V)

(V)

Rev.1.10 - 13 -

R3111x451C R3111x451A

6

5 4 3

85°C

2

Output Voltage VOUT(V)

25°C

1

Topt=-40°C

0

0231654

Input Voltage V

DD Pull-up 470kΩ

V

IN(V)

6

T opt=-40°C

5

25°C

4

85°C

3

2

Output Voltage VOUT(V)

1 0

0231654

Input Voltage V

5V Pull-up 470kΩ

IN(V)

4) Nch Driver Output Current vs. V R3111x091C R3111x091C

700 600

DD=0.85V

500

V

400 300 200

Output Current IOUT(µA)

100

0

0 0.2 0.4 0.6 0.8

0.7V

V

DS(V)

R3111x271C R3111x271C

20 18 16

(mA)

14

OUT

12 10

8 6 4

Output Current I

2 0

0 0.5 1 1.5 2 2.5

1.5V

V

DS

(V)

DS

Topt=25°C

Topt=25°C

VDD=2.5V

2.0V

300

250 200

VDD=0.8V

150

100

Output Current IOUT(µA)

50

0

0 0.02 0.04 0.06 0.08 0.1

V

0.7V

DS(V)

300

250 200

VDD=0.8V

150

100

Output Current IOUT(µA)

50

0

0 0.02 0.04 0.06 0.08 0.1

V

0.7V

DS(V)

Topt=25°C

Topt=25°C

Rev.1.10 - 14 -

R3111x451C R3111x451C

60 50

(mA)

40

OUT

30 20 10

Output Current I

0

0 0.5 1 1.5 2 2.5 3 43.5 4.5

1.5V

V

2.0V

DS

2.5V

(V)

Topt=25°C

VDD=4.5V

4.0V

3.5V

3.0V

5) Nch Driver Output Current vs. Input Voltage R3111x091C R3111x271C

900 800 700

(mA)

600

OUT

500 400 300 200

Output Current I

100

0

0 0.2 0.4 0.6 10.8

Input Voltage V

Topt=-85°C

25°C

IN

-40°C

(V)

300

250 200

VDD=0.8V

150

100

Output Current IOUT(µA)

50

0

0 0.02 0.04 0.06 0.08 0.1

V

DS(V)

0.7V

14 12

(mA)

OUT

10

Topt=-40°C

8 6 4

Output Current I

2 0

0 0.5 1 1.5 1 2.5 3

IN

Input Voltage V

(V)

Topt=25°C

25°C

85°C

R3111x451C

25

20

(mA)

OUT

15

10

5

Output Current I

0

0123456

Topt=-40°C

25°C

85°C

Input Voltage V

IN

(V)

Rev.1.10 - 15 -

6) Pch Driver Output Current vs. Input Voltage R3111x091C R3111x271C

IN

(V)

Topt=25°C

1.4

1.2

(mA)

1.0

OUT

0.8

0.6

0.4

Output Current I

0.2

0.0 02468

Input Voltage V

VDS=0.7V

0.5V

R3111x451C

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

Output Current IOUT(mA)

0.5

0.0 024 8610

VDS=2.1V

Input Voltage V

Topt=25°C

1.5V

1.0V

0.5V

IN(V)

3.5

3.0

2.5

2.0

1.5

1.0

Output Current IOUT(mA)

0.5

0.0 012 43657

Input Voltage V

Topt=25°C

VDS=2.1V

1.5V

1.0V

0.5V

IN(V)

7) Output Delay Time vs. Load Capacitance R3111x091A R3111x271A

100

10

1

0.1

0.01

Output Delay Time tP(ms)

0.001

0.0001 0.010.001 0.1

tPLH

tPHL

Load Capacitance C

OUT

(µF)

100

10

1

0.1

0.01

Output Delay Time tP(ms)

0.001

0.0001 0.010.001 0.1

tPLH

tPHL

Load Capacitance C

OUT

(µF)

Rev.1.10 - 16 -

R3111x451A

100

10

t

1

PLH

0.1

t

0.01

Output Delay Time tP(ms)

0.001

0.0001 0.010.001 0.1

PHL

Load Capacitance C

OUT

(µF)

8) Output Delay Time vs. Input Pin Capacitance R3111x091A R3111x271A

100

100

10

t

1

PLH

0.1 t

0.01

Output Delay Time tP(ms)

0.001

0.0001 0.010.001 0.1

PHL

Input Pin Capacitance C

IN

R3111x451A

100

10

1

0.1

0.01

Output Delay Time tP(ms)

0.001

0.001 0.10.01 1

t

PLH

t

PHL

Input Pin Capacitance C

IN(µF)

(µF)

10

1

0.1

0.01

Output Delay Time tP(ms)

0.001

0.0001 0.010.001 0.1

t

PLH

t

PHL

Input Load Capacitance C

IN

(µF)

Rev.1.10 - 17 -

■

TYPICAL APPLICATION

R3111xxx1A CPU Reset Circuit (Nch Open Drain Output)

●

Case 1.Input Voltage to R3111xxx1A is equal to

Input Voltage to CPU

V

DD

V

DD

470K

XXX

SERIES

DD

XXX

SERIES

1A

OUT

1C

OUT

R3111

GND

R3111xxx1A CPU Reset Circuit CMOS Output

●

V

R3111

GND

R

V

RESET

GND

V

RESET

GND

DD

DD

CPU

CPU

V

DD

Case 2.Input Voltage to R3111xxx1A is unequal to

Input Voltage to CPU

V

DD1

V

DD

R3111

SERIES

GND

XXX

1A

470K

OUT

R

V

RESET

GND

DD

CPU

V

DD2

●

R3111xxx1A Output Delay Time Circuit 1

(Nch Open Drain Output)

V

DD

R3111

SERIES

GND

Memory Back-up Circuit

●

XXX

1A

470K

V

DD

OUT

R

D1

V

DD

R3111

SERIES

GND

V

RESET

GND

XXX

1C

DD

CPU

D2

OUT

A B G

GND

●

R3111xxx1A Output Delay Ti me Circuit 2

(Nch Open Drain Output)

V

DD

R2R1

CC

VDD

RESET

GND

CPU

V Y1

Y2 Y3

CC

XXX

470K

1A

OUT

V

CC

V

100K

V

CC

R3111

SERIES

V

DD

GND

V

CC

RAM1 RAM2 RAM3 RAM4

Y4

GND CS

GND CS

GND CS

GND CS

DD

V

Rev.1.10 - 18 -

Voltage level Indicator Circuit (lighted when the power runs out)

●

(Nch Open Drain Output)

V

DD

V

DD

XXX

R3111

OUT

GND

Detector Threshold Adjustable Circuit

●

1A

SERIES

(Nch Open Drain Type Output)

OUT

R3111

XXX

1A

SERIES

GND

Window Comparator Circuit

●

(Nch Open Drain Output)

V

DD

R3111

SERIES

GND

XXX

1A

OUT V

DET

R3111

GND

1

V

DD

C

V

DD

SERIES

+

XXX

1A

OUT

V

DET

Ra

Rb

2

V

DD

A d ju st e d Detecto r Thresho l d

DET

)*(Ra+ R b)/R b

=(-V

Hysteresis Voltage

HYS

=(V

)*(Ra+Rb)/Rb

*) If the value of Ra is set excessively large, voltage drop may occur

caused by the sup ply current of IC itself, and detector threshold may vary.

V

DD

OUT

V

V

OUT

V

DD

SS

SS

DET

1

V

V

DET

2

Over-charge Preventing Circuit

●

Light

R1

Solar Battery

R2

D1

R3

OUT

Rev.1.10 - 19 -

VDD

R3111

SERIES

GND

R4

XXX1C

Load

TECHNICAL NOTES

V

DD

V

DD

R3111

SERIES

GND

R

OUT

V

DD

V

DD

R3111

SERIES

GND

Figure 9 Figure 10

R1

R2

OUT

1. In Figure 9, When R3111xxx1C is used, and if an impedance is connected in between Voltage Supplier and the V Pin of R3111xxx1C Series, the operation might be unstable by through-type current at detection. When R3111xxx1A is used in Figure 9, if the value of R is set excessively large, voltage drop may occur caused by supply crrent of IC itself and Detector threshold may vary.

2. Wiring as shown in Figure 10 may cause the oscillation in both output types of R3111 Series.

DD

Rev.1.10 - 20 -

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