LOW VOLTAGE DETECTOR WITH BUILT-IN

DELAY CIRCUIT

R3132XxxA/C, R3133XxxA/C

R3132X_E/2003/10/20

OUTLINE

R3132X/R3133X Series are CMOS-based low voltage detector ICs with built-in delay circuit, high

detector threshold accuracy, and ultra low supply current, which can operate at low voltage.

These ICs can be used as system reset generators, and each of these ICs consists of a voltage ref-

erence, a comparator, resistors for setting voltage detector threshold, an output driver transistor,

manual reset circuit, and an output delay generator.

Detector threshold is fixed internally with high accuracy and requires no adjustment. When a

supply voltage crosses a setting detector threshold voltage from a high value to a lower value, this IC

generates reset signal.

R3132X Series output "L" at its detect, while R3133X Series output "H".

Since each of R3132X/R3133X Series embeds an output delay generator, during a setting 240ms

delay time, which is fixed in the IC, this IC keeps the reset condition after they are released. Released

conditions are the case when a supply voltage crosses a setting detector threshold voltage from a low

value to a higher value, or when this IC is released from manual reset.

Two output types, Nch open drain type and CMOS type, are available.

Since the package for these ICs are ultra small SC-82AB package and SON1612-6(Under Devel-

opment), high density mounting of the ICs on board is possible.

FEATURES

Ultra-low supply current ............................................. Typ. 0.8µA (R313xQ27x: V

=3.0V)

Operating Voltage Range ............................................. 0.8V to 6.0V (Topt=25°C)

Detector Threshold...................................................... Setting with a step of 0.1V in the range of

1.0V to 5.0V is possible. Further, 2.32V,

2.63V, 2.93V, 3.08V, 4.38V, and 4.63V can

be provided as standard.

Embedded Power on Reset Delay Time Circuit ............. Typ. 240ms

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

High Accuracy Released Delay Time............................. ±15.0%

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

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

Small Packages ........................................................... SC-82AB, SON1612-6(Under Development)

R3132XxxA/C, R3133XxxA/C

APPLICATIONS

CPU & Logic Circuit Reset

Battery Checker

Window Comparator

Wave Shaping Circuit

Battery Backup Circuit

Power Failure Detector

BLOCK DIAGRAMS

R3132XxxEA Nch Open Drain Output

R3132xxxEC CMOS Output

OUT

GND

Vref

Delay
Circuit

OUT

GND

Vref

Delay
Circuit

R3133xxxEA Nch Open Drain Output

R3133xxxEC CMOS Output

OUT

GND

Vref

Delay
Circuit

OUT

GND

Vref

Delay
Circuit

R3132XxxA/C, R3133XxxA/C

TIMING CHART

Tdelay

Detector

Threshold

DET

Power
Supply
(V

)

Output Voltage

Manual
Reset

Minimum

Operating

Voltage

Tdelay

Detector

Threshold

DET

Supply

Voltage

)

Output

Voltage

Manual

Reset

Minimum

Operating

Voltage

R3132X Operation Diagram

R3133X Operation Diagram

Output Delay Operation

Output Delay Time, or Tdelay is specified as follows:
1. In the case of Nch Open Drain Output:

The time interval from rising edge of V

pulse (0.8V

DET

)+1.0V) to the time at which the output

reaches 2.5V under the condition that the output pin (OUT) is pulled up to 5V through a 470k

resistor.

2. In the case of CMOS Output:

The time interval from rising edge of V

pulse (0.8V

DET

)+1.0V) to the time at the output reaches

/2.

0.8V

5.0V

2.5V

GND

DET

+1.0V

Input Voltage
(V

)

Output Voltage

Tdelay

Trst

0.8V

GND

DET

+1.0V

DET

+1.0V

DET

+1.0V)/2

Input Voltage
(V

)

Output Voltage

Tdelay

Trst

Nch Open Drain Output

CMOS Output

R3132XxxA/C, R3133XxxA/C

SELECTION GUIDE

The detector threshold and the output type of R3132X/R3133X Series can be designated at the

user's request by specifying the part number as follows:

R3132XxxEx (x)-TR

Part Number

R3133XxxEx (x)-TR

a b b' c d

Code

Contents

Package Designation
Q:SC82-AB D: SON1612-6(Under Development)

b/b'

Setting Detector Threshold (V

DET

)

Stepwise setting with a step of 0.1V in the range of 1.0V to 5.0V is possible.
a' describes the last digit of the next items; 2.32V/2.63V/2.93V/3.08V/4.63V
ex. 2.63V Output

R313xX26Ex3-TR

Designation of Output type
A: Nch Open Drain
C: CMOS

TR: Designation of Taping Direction
(Refer to Taping Specification)

PIN CONFIGURATION

SC----82AB

82AB

SON1612-6Under Development

(mark side)

6 5 4

1 2 3

R3132XxxA/C, R3133XxxA/C

PIN DESCRIPTION

SC82-AB

Pin No.

Symbol

Description

GND

Ground Pin

OUT

Output Pin
R3132Q Series: Output "L" at detect, Output "H" at release.
R3133Q Series: Output "H" at detect, Output "L" at release.

Manual Reset Input Pin
Active at "L" input. Pulled up via 1M

. If MR pin is not necessary,

open this node, or connect to V

Input Pin

SON1612-6(Under Development)

Pin No.

Symbol

Description

Input Pin

GND

Ground Pin

Manual Reset Input Pin
Active at "L" input. Pulled up via 1M

. If MR pin is not necessary,

open this node, or connect to V

OUT

Output Pin
R3132D Series: Output "L" at detect, Output "H" at release.
R3133D Series: Output "H" at detect, Output "L" at release.

GND

Ground Pin

6 NC

Connection

R3132XxxA/C, R3133XxxA/C

ABSOLUTE MAXIMUM RATINGS

Symbol

Item

Rating

Unit

Supply Voltage

6.5

CMOS

-0.3 to V

+0.3

OUT

Output Voltage

Nch V

-0.3 to 6.5

Input Voltage

-0.3 to V

+0.3

OUT

Output Current

150(SC82-AB)

Power Dissipation

500(SON1612-6)(Under Develop-

ment)

*Note1

Topt

Operating Temperature
Range

-40 to +85

°C

Tstg

Storage Temperature
Range

-55 to +125

°C

Tsolder

Soldering Temperature

260°C, 10s

*Note 1: This specification is at mounted on board.

depends on conditions of mounting on board. This specification is based on the meas-

urement at the condition below:

*Measurement Conditions

Environment: Mounted on board (Wind velocity 0m/s)

Board Material: FR-4 (2-layer)

Board dimensions : 40mm x 40mm x t1.6mm

Copper Area : 50%

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are threshold limit values that must not be exceeded even for a moment
under any conditions.
Moreover, such values for any items must not be reached simultaneously. Operation above these
absolute maximum ratings may cause degradation or permanent damage to the device. These are
just stress ratings and do not necessarily imply to guarantee operation below these limits.

R3132XxxA/C, R3133XxxA/C

ELECTRICAL CHARACTERISTICS

Topt=25°C

Symbol

Item

Test Conditions

Min.

Typ.

Max.

Unit

Topt=25°C

0.75

6.00

R3132

-40°C

Topt

85°C

0.85

6.00

Topt=25°C

0.80

6.00

Operating Voltage

R3133

-40°C

Topt

85°C

0.90

6.00

DET

Detector Threshold

DET

0.98

DET

1.02

SS1

Supply Current1

DET

-0.1V, I

OUT

=0A

2.0

µA

SS2

Supply Current2

DET

+0.1V, I

OUT

=0A

2.0

µA

DET

<1.6V

3.6

1.6V

DET

<2.7V

3.0

SS3

Supply Current3

2.7V

DET

=6.0V,

OUT

=0A

2.5

µA

"H" Output Voltage

Refer to the specification table below.

"L" Output Voltage

Refer to the specification table below.

MR pin pull-up
resistance

Topt=25°C

0.5

1.0

4.0

Trst

*Note1

Output Delay Time
for detect

DET

to V

DET

-0.1V

µs

Tdelay

(*2)

Output Delay Time
for release

=0.8V to V

DET

+1.0V

204

240

276

DET

Topt

Detector Threshold
Temperature
Coefficient

-40°C

Topt

85°C

±100

ppm

°C

Note1) Guaranteed by design, not mass production tested.

R3132XxxA/C, R3133XxxA/C

"H" Output Voltage (V

) table

Topt=25°C

Products

Test Conditions

Min.

Typ.

Max.

Unit

DET

<1.2V

DET

+0.1V, I

=-50µA

1.2V

DET

<2.0V

DET

+0.1V, I

=-150µA

2.0V

DET

<3.1V

DET

+0.1V, I

=-500µA

R3132Xxx1C

3.1V

DET

+0.1V, I

=-800µA

0.8

DET

<1.2V

DET

-0.1V, I

=-10µA

1.2V

DET

<2.0V

DET

-0.1V, I

=-100µA

2.0V

DET

<3.1V

DET

-0.1V, I

=-500µA

R3133Xxx1C

3.1V

DET

-0.1V, I

=-800µA

0.8

"L" Output Voltage (V

) table

Topt=25°C

Symbol

Item

Test Conditions

Min.

Typ.

Max.

Unit

DET

<1.2V

DET

-0.1V, I

=20µA

1.2V

DET

<2.0V

DET

+0.1V, I

=750µA

2.0V

DET

<3.1V

DET

+0.1V, I

=1.2mA

0.3

R3132Xxx1x

3.1V

DET

+0.1V, I

=3.2mA

0.4

DET

<1.2V

DET

-0.1V, I

=20µA

1.2V

DET

<2.0V

DET

-0.1V, I

=750µA

2.0V

DET

<3.1V

DET

-0.1V, I

=1.2mA

0.3

R3133Xxx1x

3.1V

DET

-0.1V, I

=3.2mA

0.4

R3132XxxA/C, R3133XxxA/C

DETECTOR THRESHOLD SPECIFICATIONS BY PART NUMBER

R3132X

Operating Voltage

Detector Threshold

Supply Current 1

[V] -V

DET

[V] Is

[

µ
µ
µ
µ

Part Number

Conditions Max.

Min. Typ.

Max.

Conditions Typ.

Max.

R3132X23Ex2

2.274 2.320 2.366

R3132X26Ex3

2.578 2.630 2.682

0.8

R3132X29Ex3

2.872 2.930 2.988

R3132X30Ex8

3.019 3.080 3.141

R3132X43Ex8

4.293 4.380 4.467

R3132X46Ex3

Topt=25

C 0.75

-40

Topt

0.85

4.538 4.630 4.722

DET

-0.1V

OUT

=0A

0.9

2.0

R3132X10Ex

0.980 1.000 1.020

R3132X11Ex

1.078 1.100 1.122

R3132X12Ex

1.176 1.200 1.224

R3132X13Ex

1.274 1.300 1.326

R3132X14Ex

1.372 1.400 1.428

R3132X15Ex

1.470 1.500 1.530

R3132X16Ex

1.568 1.600 1.632

R3132X17Ex

1.666 1.700 1.734

R3132X18Ex

1.764 1.800 1.836

R3132X19Ex

1.862 1.900 1.938

R3132X20Ex

1.960 2.000 2.040

R3132X21Ex

2.058 2.100 2.142

R3132X22Ex

2.156 2.200 2.244

R3132X23Ex

2.254 2.300 2.346

R3132X24Ex

2.352 2.400 2.448

R3132X25Ex

2.450 2.500 2.550

R3132X26Ex

2.548 2.600 2.652

0.8

R3132X27Ex

2.646 2.700 2.754

R3132X28Ex

2.744 2.800 2.856

R3132X29Ex

2.842 2.900 2.958

R3132X30Ex

2.940 3.000 3.060

R3132X31Ex

3.038 3.100 3.162

R3132X32Ex

3.136 3.200 3.264

R3132X33Ex

3.234 3.300 3.366

R3132X34Ex

3.332 3.400 3.468

R3132X35Ex

3.430 3.500 3.570

R3132X36Ex

3.528 3.600 3.672

R3132X37Ex

3.626 3.700 3.774

R3132X38Ex

3.724 3.800 3.876

R3132X39Ex

3.822 3.900 3.978

R3132X40Ex

3.920 4.000 4.080

R3132X41Ex

4.018 4.100 4.182

R3132X42Ex

4.116 4.200 4.284

R3132X43Ex

4.214 4.300 4.386

R3132X44Ex

4.312 4.400 4.488

R3132X45Ex

4.410 4.500 4.590

R3132X46Ex

4.508 4.600 4.692

R3132X47Ex

4.606 4.700 4.794

R3132X48Ex

4.704 4.800 4.896

R3132X49Ex

4.802 4.900 4.998

R3132X50Ex

Topt=25

C 0.75

-40

Topt

0.85

4.900 5.000 5.100

DET

-0.1V

OUT

=0A

0.9

2.0

R3132XxxA/C, R3133XxxA/C

Supply Current 2

Supply Current 3

"H" Output Voltage

SS2

[

µ
µ
µ
µ

A] I

SS3

[

µ
µ
µ
µ

A] V

[V]

Conditions Typ.

Max. Conditions Typ.

Max.

Conditions Min.

1.2

3.0

DET

+0.1V

=-500uA

DET

+0.1V

OUT

=0A

0.8 2.0

=6.0V

OUT

=0A

1.0

2.5

DET

+0.1V

=-800uA

0.8

DET

+0.1V

=-50uA

3.6

DET

+0.1V

=-150uA

1.4

1.2

3.0

DET

+0.1V

=-500uA

1.0

DET

+0.1V

OUT

=0A

0.8 2.0

=6.0V

OUT

=0A

0.8

2.5

DET

+0.1V

=-800uA

0.8

R3132XxxA/C, R3133XxxA/C

"L" Output Voltage

MR pin "H" Input

Voltage

MR pin "L" Input

Voltage

MR pin pull-up resistance

[V]

[V] V

[V] R

]

Part Number

Conditions Max.

Conditions Min.

Conditions Max. Conditions Min.

Typ.

Max.

R3132X23Ex2
R3132X26Ex3
R3132X29Ex3
R3132X30Ex8

DET

-0.1V

=+1.2mA

0.3

R3132X43Ex8
R3132X46Ex3

DET

-0.1V

=+3.2mA

0.4

DET

+0.1

0.75

DET

+0.1

0.2

Topt=25

C 0.5

1.0

4.0

R3132X10Ex
R3132X11Ex

DET

-0.1V

=+20

R3132X12Ex
R3132X13Ex
R3132X14Ex
R3132X15Ex
R3132X16Ex
R3132X17Ex
R3132X18Ex
R3132X19Ex

DET

-0.1V

=+750

R3132X20Ex
R3132X21Ex
R3132X22Ex
R3132X23Ex
R3132X24Ex
R3132X25Ex
R3132X26Ex
R3132X27Ex
R3132X28Ex
R3132X29Ex
R3132X30Ex

DET

-0.1V

=+1.2mA

0.3

R3132X31Ex
R3132X32Ex
R3132X33Ex
R3132X34Ex
R3132X35Ex
R3132X36Ex
R3132X37Ex
R3132X38Ex
R3132X39Ex
R3132X40Ex
R3132X41Ex
R3132X42Ex
R3132X43Ex
R3132X44Ex
R3132X45Ex
R3132X46Ex
R3132X47Ex
R3132X48Ex
R3132X49Ex
R3132X50Ex

DET

-0.1V

=+3.2mA

0.4

DET

+0.1

0.75

DET

+0.1

0.2

Topt=25

C 0.5

1.0

4.0

R3132XxxA/C, R3133XxxA/C

R3133X

Operating Voltage

Detector Threshold

Supply Current 1

[V] -V

DET

[V] Iss

[

µ
µ
µ
µ

Part Number

Conditions Max.

Min. Typ.

Max.

Conditions Typ.

Max.

R3133X23Ex2

2.274 2.320 2.366

R3133X26Ex3

2.578 2.630 2.682

0.8

R3133X29Ex3

2.872 2.930 2.988

R3133X30Ex8

3.019 3.080 3.141

R3133X43Ex8

4.293 4.380 4.467

R3133X46Ex3

Topt=25

C 0.80

-40

Topt

0.90

4.538 4.630 4.722

DET

-0.1V

OUT

=0A

0.9

2.0

R3133X10Ex

0.980 1.000 1.020

R3133X11Ex

1.078 1.100 1.122

R3133X12Ex

1.176 1.200 1.224

R3133X13Ex

1.274 1.300 1.326

R3133X14Ex

1.372 1.400 1.428

R3133X15Ex

1.470 1.500 1.530

R3133X16Ex

1.568 1.600 1.632

R3133X17Ex

1.666 1.700 1.734

R3133X18Ex

1.764 1.800 1.836

R3133X19Ex

1.862 1.900 1.938

R3133X20Ex

1.960 2.000 2.040

R3133X21Ex

2.058 2.100 2.142

R3133X22Ex

2.156 2.200 2.244

R3133X23Ex

2.254 2.300 2.346

R3133X24Ex

2.352 2.400 2.448

R3133X25Ex

2.450 2.500 2.550

R3133X26Ex

2.548 2.600 2.652

0.8

R3133X27Ex

2.646 2.700 2.754

R3133X28Ex

2.744 2.800 2.856

R3133X29Ex

2.842 2.900 2.958

R3133X30Ex

2.940 3.000 3.060

R3133X31Ex

3.038 3.100 3.162

R3133X32Ex

3.136 3.200 3.264

R3133X33Ex

3.234 3.300 3.366

R3133X34Ex

3.332 3.400 3.468

R3133X35Ex

3.430 3.500 3.570

R3133X36Ex

3.528 3.600 3.672

R3133X37Ex

3.626 3.700 3.774

R3133X38Ex

3.724 3.800 3.876

R3133X39Ex

3.822 3.900 3.978

R3133X40Ex

3.920 4.000 4.080

R3133X41Ex

4.018 4.100 4.182

R3133X42Ex

4.116 4.200 4.284

R3133X43Ex

4.214 4.300 4.386

R3133X44Ex

4.312 4.400 4.488

R3133X45Ex

4.410 4.500 4.590

R3133X46Ex

4.508 4.600 4.692

R3133X47Ex

4.606 4.700 4.794

R3133X48Ex

4.704 4.800 4.896

R3133X49Ex

4.802 4.900 4.998

R3133X50Ex

Topt=25

C 0.80

-40

Topt

0.90

4.900 5.000 5.100

DET

-0.1V

OUT

=0A

0.9

2.0

R3132XxxA/C, R3133XxxA/C

Supply Current 2

Supply Current 3

"H" Output Voltage

SS2

[

µ
µ
µ
µ

A] I

SS3

[

µ
µ
µ
µ

A] V

[V]

Conditions Typ.

Max. Conditions Typ.

Max.

Conditions Min.

1.2

3.0

DET

-0.1V

=-500uA

DET

+0.1V

OUT

=0A

0.8 2.0

=6.0V

OUT

=0A

1.0

2.5

DET

-0.1V

=-800uA

0.8

DET

-0.1V

=-10uA

3.6

DET

-0.1V

=-100uA

1.4

1.2

3.0

DET

-0.1V

=-500uA

1.0

DET

+0.1V

OUT

=0A

0.8 2.0

=6.0V

OUT

=0A

0.8

2.5

DET

-0.1V

=-800uA

0.8

R3132XxxA/C, R3133XxxA/C

"L" Output Voltage

MR pin "H" Input

Voltage

MR pin "L" Input

Voltage

MR pin pull-up resistance

[V]

[V] V

[V] R

]

Part Number

Conditions Max.

Conditions Min.

Typ.

Max.

R3133X23Ex2
R3133X26Ex3
R3133X29Ex3
R3133X30Ex8

DET

+0.1V

=+1.2mA

0.3

R3133X43Ex8
R3133X46Ex3

DET

+0.1V

=+3.2mA

0.4

DET

+0.1

0.75

DET

+0.1

0.2

Topt=25

C 0.5

1.0

2.0

R3133X10Ex
R3133X11Ex

DET

+0.1V

=+20

R3133X12Ex
R3133X13Ex
R3133X14Ex
R3133X15Ex
R3133X16Ex
R3133X17Ex
R3133X18Ex
R3133X19Ex

DET

+0.1V

=+750

R3133X20Ex
R3133X21Ex
R3133X22Ex
R3133X23Ex
R3133X24Ex
R3133X25Ex
R3133X26Ex
R3133X27Ex
R3133X28Ex
R3133X29Ex
R3133X30Ex

DET

+0.1V

=+1.2mA

0.3

R3133X31Ex
R3133X32Ex
R3133X33Ex
R3133X34Ex
R3133X35Ex
R3133X36Ex
R3133X37Ex
R3133X38Ex
R3133X39Ex
R3133X40Ex
R3133X41Ex
R3133X42Ex
R3133X43Ex
R3133X44Ex
R3133X45Ex
R3133X46Ex
R3133X47Ex
R3133X48Ex
R3133X49Ex
R3133X50Ex

DET

+0.1V

=+3.2mA

0.4

DET

+0.1

0.75

DET

+0.1

0.2

Topt=25

C 0.5

1.0

2.0

R3132XxxA/C, R3133XxxA/C

OPERATION

Operation of R3132X Series

OUT

GND

Vref

Nch

Pch

Comparator

Delay

Circuit

Block Diagram

CMOS Output Type
OUT pin is connected to the drain of Nch Tr. and Pch Tr. in this IC.

Nch Open Drain Output Type
OUT pin is connected to the drain of Nch Tr. in this IC.
(OUT pin should be pulled up to V

or an external voltage level.)

GND

DELAY

Detector Threshold (V

DET

)

=Relased Voltage

Supply
Voltage
(V

)

Output
Voltage
(OUT)

Minimum Operating Voltage
(V

DDL

)

Operating Diagram

In the above diagram,
x

Output voltage becomes equal to supply voltage (Nch open drain output type; equal to pull-up

Voltage).

When the supply voltage is down to the detector threshold level (Point A), Vref

Rb / (Ra+Rb) is

true. Then, the output of the comparator is reversed, thus output voltage becomes equal to GND
level.

When the supply voltage is lower than minimum operating voltage, the output of transistor is in-

definite, therefore the output is also indefinite.

{

Output voltage is equal to GND level.

When the supply voltage is higher than the released voltage (Point B), Vref

Rb / (Ra+Rb) is

true. Then the output of the comparator is reversed, thus the output voltage becomes equal to the
supply voltage (Nch open drain output type; equal to pull-up voltage).

*There is no hysteresis range between the detector threshold and the released voltage.

R3132XxxA/C, R3133XxxA/C

Operation of R3133X Series

OUT

GND

Vref

Nch

Pch

Comparator

Delay

Circuit

Block Diagram

CMOS Output Type:
Out pin is connected to the drain of Nch Tr. and Pch Tr. in this IC.

Nch Open Drain Output Type: I
Out pin is connected to the drain of Nch Tr. in this IC.
(OUT pin should be pulled up to V

or an external voltage level.)

GND

DELAY

Detector Threshold (V

DET

)

=Released Voltage

Supply
Voltage
(V

)

Output
Voltage
(V

OUT

)

Minimum Operating Voltage
(V

DDL

)

Operation Diagram

In the above diagram,
x

Output voltage becomes equal to GND level.

When the supply voltage is down to the detector threshold level (Point A), Vref

Rb / (Ra+Rb) is

true. Then, the output of the comparator is reversed, thus output voltage becomes equal to the
supply voltage (Nch open drain output type; equal to pull-up voltage).

When the supply voltage is lower than minimum operating voltage, the output of transistor is in-

definite, therefore the output is also indefinite. (Nch open drain output type; the output voltage level
is equal to pull-up voltage.)

{

Output voltage is equal to the supply voltage. (Nch open drain output type; equal to pull-up Voltage.)

When the supply voltage is higher than the released voltage (Point B), Vref

Rb / (Ra+Rb) is

true. Then the output of the comparator is reversed, thus the output voltage becomes equal to GND
level after the output delay time.

*There is no hysteresis range between the detector threshold and the released voltage.

R3132XxxA/C, R3133XxxA/C

TECHNICAL NOTES

When the IC is released, if a large pulse (glitch) which crosses the detector threshold voltage is in,

the IC may not maintain the released condition. The amplitude of the pulse (V

DET

-V

min) and the pulse

width the IC can maintain the released level is described in the graph as follows:

Reset Comparator Overdrive, (V

DET

-Vddmin) (mV)

100

120

Pulse width during under V

DET

(

100

1000

R313xQ36E

R313xQ48E

R313xQ27E

R313xQ10E

DET

Amplitude level
(V

DET

-V

DDmin

)

Pulse Width

VIN Input Waveform

Notes:

The graph above shows the condition for the maximum transient duration without generating a

reset. If the larger amplitude or larger pulse width noise than the graph may be on the V

, the reset

signal may be generated.

R3132XxxA/C, R3133XxxA/C

Application Notes

GND

OUT

R313xQ

Series

GND

OUT

R313xQ

Series

Figure

The connection such as Figure A and Figure B may cause the loop oscillation because of the cross
conduction current. Not only that, these types connection may make shift the detector threshold level
because of the voltage dropout with consumption current of the IC itself.

TEST CIRCUITS

Test Circuit for Supply Current

·
·
·
·

Test Circuit for Detector Threshold

(CMOS Output type; pull-up part is not necessary.)

R313xQ

Series

GND

OUT

R313xQ

Series

OUT

470k

GND

OUT

Test Circuit for "H" Output Voltage

·
·
·
·

Test Circuit for "L" Output Voltage

(CMOS Output Type only)

R313xQ

Series

OUT

GND

OUT

R313xQ

Series

OUT

GND

OUT

R3132XxxA/C, R3133XxxA/C

Test Circuit for MR pin Input Voltage

·
·
·
·

Test Circuit for MR pin Pull-up Resistance

(CMOS Output type; pull-up part is not necessary.)

GND

470k

R313xQ

Series

GND

R313xQ

Series

Test Circuit for Off Leakage Current

·
·
·
·

Test Circuit for Output Delay Time

(CMOS Output type; pull-up is not necessary.)

OUT

GND

R313xQ

Series

50%

Tdelay

Input
Voltage

Output
Voltage

GND

1.0V

DET

)+1.0V

R3133Q
Series

R3132Q
Series

R313xQ

Series

OUT

GND

OUT

TYPICAL CHARACTERISTICS

1) Supply Current vs. Input Voltage

R3132X101x/R3133X101x

R3132X161x/R3133X161x

1.6

1.2

0.8

0.4

Input Voltage V

(V)

Supply Current I

(

Topt=85

-40

1.6

1.2

0.8

0.4

Input Voltage V

(V)

Supply Current I

(

Topt=85

-40

R3132XxxA/C, R3133XxxA/C

R3132X271x/R3133X271x

R3132X481x/R3133X481x

1.6

1.2

0.8

0.4

Input Voltage V

(V)

Supply Current I

(

Topt=85

-40

1.6

1.2

0.8

0.4

Input Voltage V

(V)

Supply Current I

(

Topt=85

-40

2) Detector Threshold vs. Temperature

R3132X101x/R3133X101x

R3132X161x/R3133X161x

1.10

1.05

1.00

0.95

0.90

Temperature Topt(

Detector Threshold V

DET

(V)

-50

-25

100

1.80

1.70

1.60

1.50

1.40

Temperature Topt(

Detector Threshold V

DET

(V)

-50

-25

100

1.45

1.75

1.65

1.55

R3132X271x/R3133X271x

R3132X481x/R3133X481x

2.90

2.80

2.70

2.60

2.50

Temperature Topt(

Detector Threshold V

DET

(V)

-50

-25

100

2.55

2.85

2.75

2.65

5.1

4.9

4.8

4.5

Temerature Topt(

Detector Threshold V

DET

(V)

-50

-25

100

4.6

5.0

4.7

R3132XxxA/C, R3133XxxA/C

3) Nch Driver Output Current vs. V

(Topt=25

R3132X101x

R3132X161x

1.6

1.4

0.8

0.6

0.2

(V)

Nch Driver Output Current

OUT

(mA)

0.2

0.4

0.6

0.8

1.2

1.0

1.2

1.0

0.4

=0.99V

0.8V

1.6

1.4

0.8

0.6

0.2

(V)

Nch Driver Output Current

OUT

(mA)

0.2

0.4

0.6

0.8

1.2

1.0

1.2

1.0

0.4

=1.0V

0.8V

R3132X271x

R3132X481x

15.0

12.5

5.0

2.5

(V)

Nch Driver Output Current

OUT

(mA)

0.5

1.5

10.0

7.5

=2.0V

1.0V

(V)

Nch Driver Output Current

OUT

(mA)

0.5

1.5

=4.0V

1.0V

2.0V

R3133X101x

R3133X161x

(V)

Nch Driver Output Current

OUT

(mA)

1.5

0.5

2.5

=6.0V

2.0V

3.0V

4.0V

5.0V

(V)

Nch Driver Output Current

OUT

(mA)

1.5

0.5

2.5

=6.0V

2.0V

3.0V

5.0V

R3132XxxA/C, R3133XxxA/C

R3133X271x

R3133X481x

(V)

Nch Driver Output Current

OUT

(mA)

1.5

0.5

2.5

=6.0V

3.0V

5.0V

4.0V

(V)

Nch Driver Output Current

OUT

(mA)

1.5

0.5

2.5

VDD=6.0V

5.0V

4) Nch Driver Output Current vs. Input Voltage (V

=0.5V)

R3132X101x

R3132X161x

2.0

1.5

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

0.4

0.6

1.2

0.2

0.8

1.0

0.5

Topt=85

-40

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

1.5

0.5

2.5

Topt=-40

R3132X271x

R3132X481x

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

1.5

0.5

2.5

Topt=-40

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

Topt=-40

R3132XxxA/C, R3133XxxA/C

R3133X101x

R3133X161x

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

Topt=-40

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

Topt=-40

R3133X271x

R3133X481x

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

Topt=-40

Input Voltage V

(V)

Nch Driver Output Current

OUT

(mA)

Topt=-40

5) Pch Driver Output Current vs. Input Voltage

R3132X101x

R3132X161x

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-2.1V

-1.5V

-1.0V

-0.5V

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-2.1V

-1.5V

-1.0V

-0.5V

R3132XxxA/C, R3133XxxA/C

R3132X271x

R3132X481x

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-2.1V

-1.5V

-1.0V

-0.5V

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-2.1V

-1.5V

-1.0V

-0.5V

R3133X101x

R3133X161x

2.0

1.5

0.5

1.5

1.0

0.5

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-1.0V,-0.5V

2.0

1.5

0.5

1.5

1.0

0.5

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-1.5V,-1.0V

-0.5V

R3133X271x

R3133X481x

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-2.1V

-1.5V

-1.0V

-0.5V

Input Voltage V

(V)

Pch Driver Output Current

OUT

(mA)

=-2.1V

-1.5V

-1.0V

-0.5V

R3132XxxA/C, R3133XxxA/C

6) Output Delay Time at Detection Mode vs. Temperature
R3132X101x/R3133X101x

R3132X161x/R3133X161x

Temperature Topt(

Output Delay Time at Detection Mode

Trst(

-50

100

-25

-50

100

-25

Temperature Topt(

Output Delay Time at Detection Mode

Trst(

R3132X271x/R3133X271x

R3132X481x/R3133X481x

-50

100

-25

Temperature Topt(

Output Delay Time at Detection Mode

Trst(

-50

100

-25

Temperature Topt(

Output Delay Time at Detection Mode

Trst(

7) Power-on Reset Delay Time vs. Temperature
R3132X101x/R3133X101x

R3132X161x/R3133X161x

360

320

200

Power-on Reset Delay Time

Tdelay(ms)

-50

100

-25

280

240

Temperature Topt(

360

320

200

-50

100

-25

280

240

Power-on Reset Delay Time

Tdelay(ms)

Temperature Topt(

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: R3133X47Ex

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: R3133X47Ex