RICOH R3131N

Low Voltage Detector with Built-in
Delay Circuit
R3130N/R3131N SERIES
NO. EA-073-0311
OUTLINE
R3130N/R3131N Series are CMOS-based low voltage detector ICs with built-in delay circuit, high Detector
Threshold accuracy and ultra low supply current which can be operated at low voltage.
These ICs can be used as system reset generator, and each of these ICs consists of a voltage reference, a
comparator, resistors for setting voltage detector threshold, an output driver transistor, and an output delay
generator.
Detector threshold is fixed internally with high accuracy and requires no adjustment. When Supply Voltage
crosses a setting detector threshold voltage from a high value to a lower value, this IC generates reset signal.
R3130N Series output “L” at detection mode, while R3131N Series output “H”.
Further, each of R3130N/R3131N Series embeds an output delay generator, when Supply Voltage crosses a
setting detector threshold voltage from a low value to a higher value, during a setting delay time which is fixed in
the IC, this IC keeps the reset condition.
Output Delay Time can be selected. (Typ. 240ms is standard.)
Two output types, Nch open drain type and CMOS type, are available.
Since the package for these ICs is SOT23-3 (Mini-mold) package, high density mounting of the ICs on board
is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
Pin to Pin compatible with MAX 809/810 (R3130Nxxxx: MAX 809, R3131Nxxxx: MAX 810)
Ultra-low supply Current ................................................... Typ. 1.25µA (R313xN27xx: VDD=3.0V)
Operating Voltage Range .................................................. 1.0V to 6.0V (Topt=25°C)
Detector Threshold ............................................................. Setting with a step of 0.1V in the range of 1.6V to
4.8V is possible.
Embedded Power on Reset Delay Time Circuit ................ Delay Time can be designated.
Refer to Selection Guide.
High Accuracy Detector Threshold ..................................... ±1.5%
High Accuracy Output Delay Time ...................................... ±10.0%
Low Temperature-Drift Coefficient of Detector Threshold .. Typ. ±100ppm/°C
Two Output Types ............................................................... Nch Open Drain and CMOS
Small Package .................................................................... SOT-23-3
APPLICATIONS
•
•
•
•
•
•
CPU & Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-Up Circuit
Power Failure Detector
1
R3130N/R3131N
BLOCK DIAGRAMS
R3130NxxxA
Nch Open Drain Output
R3130NxxxC
CMOS Output
VDD
VDD
+
Delay
Circuit
OUT
+
Vref
GND
R3131NxxxA
Nch Open Drain Output
R3131NxxxC
CMOS Output
VDD
VDD
+
Delay
Circuit
OUT
+
Vref
2
OUT
Vref
GND
GND
Delay
Circuit
Vref
GND
Delay
Circuit
OUT
R3130N/R3131N
TIMING CHART
Supply
Voltage
(VDD)
Detector
Threshold
VDET
Supply
Voltage
(VDD)
Minimum Operating
Voltage
VSS
Detector
Threshold
VDET
Minimum Operating
Voltage
VSS
Output Voltage
Output Voltage
VSS
VSS
Tdelay
Tdelay
R3130N Operation Diagram
•
R3131N 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 VDD pulse (1.0V→(VDET)+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 470kΩ resistor.
2. In the case of CMOS output
The time interval from rising edge of VDD pulse (1.0V→(VDET)+1.0V) to the time at which the output reaches
VDD/2.
VDET+1.0V
VDET+1.0V
Input Voltage
(VDD)
Input Voltage
(VDD)
1.0V
1.0V
GND
GND
5.0V
VDET+1.0V
Output Voltage
Output Voltage
2.5V
(VDET+1.0V)/2
GND
GND
Trst
Tdelay
Nch Open Drain Output
Trst
Tdelay
CMOS Output
3
R3130N/R3131N
SELECTION GUIDE
The detector threshold , the output type, and Output delay time of R3130N/R3131N series can be designated
at the user’s request by specifying the part number as follows:
R3130Nxxxx(x)-TR
R3131Nxxxx(x)-TR
↑ ↑↑ ↑
a bc d
←Part Number
←Part Number
↑
e
Code
Contents
Setting Detector Threshold (VDET)
Stepwise setting with a step of 0.1V in the range of 1.6V to 4.8V is possible.
The following 4 kinds of voltage are also standard.
2.63V, 2.93V, 3.08V, 4.65V
Selection of Output Delay Time
E: 240ms (Standard) A: 50ms B: 100ms D: 200ms H: 400ms
∗A, B, D, H versions can be produced only for 6 kinds of standard voltage items.
Designation Output type
A: Nch Open Drain
C: CMOS
a
b
c
d
Description of last one digit of 4 kinds of standard voltage items.
e
Designation of Taping Direction (Refer to Taping Specification)
PIN CONFIGURATION
SOT-23-3
3
MARK SIDE
1
2
PIN DESCRIPTION
4
Pin No
Symbol
Description
1
GND
Ground Pin
2
OUT
Output Pin
R3130N: Output “L” at detection mode, Output “H” at release mode
R3131N: Output “H” at detection mode, Output “L” at release mode
3
VDD
Input Pin
R3130N/R3131N
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
Unit
6.5
V
VDD
Supply Voltage
VOUT
Output Voltage
IOUT
Output Current
20
mA
PD
Power Dissipation
150
mW
CMOS
VSS−0.3 to VDD+0.3
V
Nch
VSS−0.3 to 6.5
V
Topt
Operating Temperature Range
−40 to +85
°C
Tstg
Storage Temperature Range
−55 to +125
°C
Soldering Temperature
260°C, 10s
Tsolder
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.
ELECTRICAL CHARACTERISTICS
•
R3130N26xx3-TR
[Topt=25°C]
Symbol
Item
VDDH
Maximum Operating Voltage
VDDL ∗1
Minimum Operating Voltage
Conditions
Min.
IOL=50µA
Max.
Unit
6.0
V
0.75
1.00
V
2.630
2.669
V
VDET
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=2.73V
1.25
4.00
µA
ISS3
Supply Current3
VDD=2.53V
1.10
3.50
µA
VOH
“H” Output Voltage
VDD=2.73V, IOUT=−500µA
“L” Output Voltage
VDD=2.53V, IOUT=1.2Ma
VOL
Tdelay
∗2
∆VDET/
∆Topt
2.591
Typ.
0.8×VDD
V
0.93×VDD
0.16
0.30
V
Output Delay Time for release Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
<
=
Topt
<
=
85°C
±100
ppm/°C
5
R3130N/R3131N
•
R3130N29xx3-TR
[Topt=25°C]
Symbol
VDDH
Maximum Operating Voltage
VDDL ∗1
Minimum Operating Voltage
Conditions
Min.
IOL=50µA
Max.
Unit
6.0
V
0.75
1.00
V
2.930
2.973
V
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=3.03V
1.25
4.00
µA
ISS3
Supply Current3
VDD=2.83V
1.10
3.50
µA
VOH
“H” Output Voltage
VDD=3.03V, IOUT=−500µA
“L” Output Voltage
VDD=2.83V, IOUT=1.2mA
Tdelay
∗2
∆VDET/
∆Topt
2.887
Typ.
VDET
VOL
•
Item
V
0.8×VDD 0.93×VDD
0.16
0.30
V
Output Delay Time for release Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
<
=
Topt
<
=
±100
85°C
ppm/°C
R3130N30xx8-TR
[Topt=25°C]
Symbol
VDDH
VDDL
Conditions
Min.
Typ.
Max.
Unit
6.0
V
0.75
1.00
V
3.080
3.126
V
Maximum Operating Voltage
∗1
Minimum Operating Voltage
IOL=50µA
VDET
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=3.18V
1.25
4.00
µA
ISS3
Supply Current3
VDD=2.98V
1.10
3.50
µA
VOH
“H” Output Voltage
VDD=3.18V, IOUT=−500µA
“L” Output Voltage
VDD=2.98V, IOUT=1.2mA
VOL
Tdelay
∗2
∆VDET/
∆Topt
6
Item
3.034
V
0.8×VDD 0.93×VDD
0.16
0.30
V
Output Delay Time for release Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
<
=
Topt
<
=
85°C
±100
ppm/°C
R3130N/R3131N
•
R3130N40xx-TR
[Topt=25°C]
Symbol
VDDH
Maximum Operating Voltage
VDDL ∗1
Minimum Operating Voltage
Conditions
Min.
IOL=50µA
Max.
Unit
6.0
V
0.75
1.00
V
4.000
4.060
V
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=4.10V
1.30
4.00
µA
ISS3
Supply Current3
VDD=3.90V
1.15
3.50
µA
VOH
“H” Output Voltage
VDD=4.10V, IOUT=−800µA
“L” Output Voltage
VDD=3.90V, IOUT=3.2mA
Output Delay Time for release
Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
Tdelay
∗2
∆VDET/
∆Topt
3.940
Typ.
VDET
VOL
•
Item
<
=
Topt
<
=
0.8×VDD
V
0.95×VDD
0.18
0.40
±100
85°C
V
ppm/°C
R3130N44xx-TR
[Topt=25°C]
Symbol
VDDH
VDDL
Item
Conditions
Min.
Typ.
Max.
Unit
6.0
V
0.75
1.00
V
4.400
4.466
V
Maximum Operating Voltage
∗1
Minimum Operating Voltage
IOL=50µA
VDET
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=4.50V
1.30
4.00
µA
ISS3
Supply Current3
VDD=4.30V
1.15
3.50
µA
VOH
“H” Output Voltage
VDD=4.50V, IOUT=−800µA
“L” Output Voltage
VDD=4.30V, IOUT=3.2mA
Output Delay Time for release
Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
VOL
Tdelay
∗2
∆VDET/
∆Topt
4.334
<
=
Topt
<
=
85°C
0.8×VDD
V
0.95×VDD
0.18
±100
0.40
V
ppm/°C
7
R3130N/R3131N
•
R3130N46xx5-TR
[Topt=25°C]
Symbol
Item
VDDH
Maximum Operating Voltage
VDDL
∗1
Min.
IOL=50µA
Max.
Unit
6.0
V
0.75
1.00
V
4.650
4.719
V
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=4.75V
1.30
4.00
µA
ISS3
Supply Current3
VDD=4.55V
1.15
3.50
µA
VOH
“H” Output Voltage
VDD=4.75V, IOUT=−800µA
“L” Output Voltage
VDD=4.55V, IOUT=3.2mA
Tdelay
∗2
∆VDET/
∆Topt
4.581
Typ.
VDET
VOL
•
Minimum Operating Voltage
Conditions
0.8×VDD
V
0.95×VDD
0.18
0.40
V
Output Delay Time for release Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
<
=
Topt
<
=
±100
85°C
ppm/°C
R3131N26xx3-TR
[Topt=25°C]
Symbol
Item
VDDH
Maximum Operating Voltage
VDDL
∗3
Min.
CMOS
IOH=−10µA
Output
Nch Open
VDS=6.5V
Drain Output
Max.
Unit
6.0
V
0.90
1.00
V
2.630
2.669
V
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=2.73V
1.25
4.00
µA
ISS3
Supply Current3
VDD=2.53V
1.10
3.50
µA
VOH
“H” Output Voltage
VDD=2.73V, IOUT=−500µA
“L” Output Voltage
VDD=2.53V, IOUT=1.2mA
Tdelay
∗2
∆VDET/
∆Topt
2.591
Typ.
VDET
VOL
8
Minimum Operating Voltage
Conditions
0.8×VDD
V
0.93×VDD
0.16
0.30
V
Output Delay Time for release Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
<
=
Topt
<
=
85°C
±100
ppm/°C
R3130N/R3131N
•
R3131N29xx3-TR
[Topt=25°C]
Symbol
VDDH
VDDL
Conditions
Min.
Typ.
Max.
Unit
6.0
V
0.90
1.00
V
2.930
2.973
V
Maximum Operating Voltage
∗3
Minimum Operating Voltage
CMOS
Output
Nch Open
Drain Output
IOH=−10µA
VDS=6.5V
VDET
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=3.03V
1.25
4.00
µA
ISS3
Supply Current3
VDD=2.83V
1.10
3.50
µA
VOH
“H” Output Voltage
VDD=2.83V, IOUT=−500µA
“L” Output Voltage
VDD=3.03V, IOUT=1.2mA
VOL
Tdelay
∗2
∆VDET/
∆Topt
•
Item
2.887
V
0.8×VDD 0.93×VDD
0.16
0.30
V
Output Delay Time for release Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
<
=
Topt
<
=
±100
85°C
ppm/°C
R3131N30xx8-TR
[Topt=25°C]
Symbol
VDDH
VDDL ∗3
Item
Conditions
Min.
Typ.
Max.
Unit
6.0
V
0.90
1.00
V
3.080
3.126
V
Maximum Operating Voltage
Minimum Operating Voltage
CMOS
Output
Nch Open
Drain Output
IOH=−10µA
VDS=6.5V
VDET
Detector Threshold
3.034
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=3.18V
1.25
4.00
µA
ISS3
Supply Current3
VDD=2.98V
1.10
3.50
µA
VOH
“H” Output Voltage
VDD=2.98V, IOUT=−500µA
VOL
“L” Output Voltage
VDD=3.18V, IOUT=1.2mA
V
0.8×VDD 0.93×VDD
0.16
0.30
V
Tdelay ∗2 Output Delay Time for release Refer to electrical characteristics by Output Delay Time for release
∆VDET/
∆Topt
Detector Threshold
Temperature Coefficient
−40°C
<
=
Topt
<
=
85°C
±100
ppm/°C
9
R3130N/R3131N
•
R3131N40xx-TR
[Topt=25°C]
Symbol
VDDH
VDDL
Conditions
Min.
Typ.
Max.
Unit
6.0
V
0.90
1.00
V
4.000
4.060
V
Maximum Operating Voltage
∗3
Minimum Operating Voltage
CMOS
Output
Nch Open
Drain Output
IOH=−10µA
VDS=6.5V
VDET
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=3.90V
1.30
4.00
µA
ISS3
Supply Current3
VDD=4.10V
1.15
3.50
µA
VOH
“H” Output Voltag
VDD=3.90V, IOUT=−800µA
“L” Output Voltage
VDD=4.10V, IOUT=3.2mA
Output Delay Time for release
Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
VOL
Tdelay
∗2
∆VDET/
∆Topt
•
Item
3.940
<
=
Topt
<
=
0.8×VDD
V
0.95×VDD
0.18
0.40
±100
85°C
V
ppm/°C
R3131N44xx-TR
[Topt=25°C]
Symbol
VDDH
VDDL ∗3
Item
Min.
Typ.
Max.
Unit
6.0
V
0.90
1.00
V
4.400
4.466
V
Maximum Operating Voltage
Minimum Operating Voltage
CMOS
Output
Nch Open
Drain Output
IOH=−10µA
VDS=6.5V
VDET
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=4.50V
1.30
4.00
µA
ISS3
Supply Current3
VDD=4.30V
1.15
3.50
µA
VOH
“H” Output Voltage
VDD=4.30V, IOUT=−800µA
VOL
“L” Output Voltage
VDD=4.50V, IOUT=3.2mA
Tdelay ∗2 Output Delay Time for release
∆VDET/
∆Topt
10
Conditions
Detector Threshold
Temperature Coefficient
4.334
0.8×VDD
V
0.95×VDD
0.18
0.40
V
Refer to electrical characteristics by Output Delay Time for release
−40°C
<
=
Topt
<
=
85°C
±100
ppm/°C
R3130N/R3131N
•
R3131N46xx5-TR
[Topt=25°C]
Symbol
VDDH
VDDL
Item
Conditions
Min.
Typ.
Max.
Unit
6.0
V
0.90
1.00
V
4.650
4.719
V
Maximum Operating Voltage
∗3
Minimum Operating Voltag
CMOS
IOH=−10µA
Output
Nch Open
VDS=6.5V
Drain Output
VDET
Detector Threshold
ISS1
Supply Current1
VDD=6.00V
1.40
5.00
µA
ISS2
Supply Current2
VDD=4.75V
1.30
4.00
µA
ISS3
Supply Current3
VDD=4.55V
1.15
3.50
µA
VOH
“H” Output Voltage
VDD=4.55V, IOUT=−800µA
“L” Output Voltage
VDD=4.75V, IOUT=3.2mA
Output Delay Time for release
Refer to electrical characteristics by Output Delay Time for release
Detector Threshold
Temperature Coefficient
−40°C
VOL
Tdelay
∆VDET/
∆Topt
∗2
4.581
<
=
Topt
<
=
0.8×VDD
V
0.95×VDD
0.18
0.40
±100
85°C
V
ppm/°C
∗1) Supply Voltage when Output Voltage becomes equal or less than 0.3V. (As for Nch Open Drain Output
type, pull-up resistor is 470kΩ, pull-up voltage is 5.0V.
∗2) Time interval of rising edge of VDD which is set from 1.0V to VDET+1.0V, and the point of which Output
voltage reaches to 50% of final voltage.
∗3) CMOS Output type; Supply Voltage when Output Voltage becomes equal or more than 0.8×VDD.
Nch Open Drain type; Supply Voltage when off leakage current becomes equal or less than 0.1µA.
ELECTRICAL CHARACTERISTICS BY OUTPUT DELAY TIME
[Topt=25°C]
Part Number
Test Condition
Output Delay Time (Tdelay)
Min.
Typ.
Max.
R313xNxxAx
45
50
55
R313xNxxBx
90
100
110
180
200
220
R313xNxxEx
216
240
264
R313xNxxHx
360
400
440
R313xNxxDx
VDD=1.0V to VDET+1.0V
Unit
ms
11
R3130N/R3131N
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
•
R3130N16EA/C to R3130N48EA/C
Detector Threshold
Supply Current 1
Supply Current 2
Supply Current 3
VDET (V)
ISS1 (µA)
ISS2 (µA)
ISS3 (µA)
Part Number
12
Min.
Typ.
Max.
R3130N16EA/C
1.576
1.600
1.624
R3130N17EA/C
1.675
1.700
1.725
R3130N18EA/C
1.773
1.800
1.827
R3130N19EA/C
1.872
1.900
1.928
R3130N20EA/C
1.970
2.000
2.030
R3130N21EA/C
2.069
2.100
2.131
R3130N22EA/C
2.167
2.200
2.233
R3130N23EA/C
2.266
2.300
2.334
R3130N24EA/C
2.364
2.400
2.436
R3130N25EA/C
2.463
2.500
2.537
R3130N26EA/C
2.561
2.600
2.639
R3130N27EA/C
2.660
2.700
2.740
R3130N28EA/C
2.758
2.800
2.842
R3130N29EA/C
2.857
2.900
2.943
R3130N30EA/C
2.955
3.000
3.045
R3130N31EA/C
3.054
3.100
3.146
R3130N32EA/C
3.152
3.200
3.248
R3130N33EA/C
3.251
3.300
3.349
R3130N34EA/C
3.349
3.400
3.451
R3130N35EA/C
3.448
3.500
3.552
R3130N36EA/C
3.546
3.600
3.654
R3130N37EA/C
3.645
3.700
3.755
R3130N38EA/C
3.743
3.800
3.857
R3130N39EA/C
3.842
3.900
3.958
R3130N40EA/C
3.940
4.000
4.060
R3130N41EA/C
4.039
4.100
4.161
R3130N42EA/C
4.137
4.200
4.263
R3130N43EA/C
4.236
4.300
4.364
R3130N44EA/C
4.334
4.400
4.466
R3130N45EA/C
4.433
4.500
4.567
R3130N46EA/C
4.531
4.600
4.669
R3130N47EA/C
4.630
4.700
4.770
R3130N48EA/C
4.728
4.800
4.872
Condition
VDD=6.0V
Typ.
1.40
Max.
5.00
Condition
Typ.
Max.
Condition
Typ.
1.20
1.00
1.25
1.10
VDD=VDET
+0.1V
4.00
1.30
VDD=VDET
−0.1V
Max.
3.50
1.15
R3130N/R3131N
Topt=25°C
“H” Output Voltage
“L” Output Voltage
Minimum
Operating
Voltage
Output Delay Time
Detector Threshold
Temperature Coefficient
VOH (V)
VOL (V)
VDDL (V)
Tdelay (ms)
∆VDET/∆Topt
(ppm/°C)
Condition
Min.
Typ.
VDD=VDET
+0.1V
IOH=
−150µA
0.80×
VDD
0.95×
VDD
VDD=VDET
+0.1V
IOH=
−500µA
VDD=VDET
+0.1V
IOH=
−800µA
0.80×
VDD
0.80×
VDD
Condition
Typ.
Max.
VDD=VDET
−0.1V,
IOL=1.2mA
0.16
0.30
Typ.
Max.
Min.
Typ.
Max.
Condition
Typ.
∗1
0.75
∗1
1.00
216
240
264
−40°C
<
= Topt <
=
85°C
±100
0.93×
VDD
0.95×
VDD
VDD=VDET
−0.1V,
IOL=3.2mA
0.18
0.40
∗1describes VDD Voltage when Output Voltage becomes equal or less than 0.3V.
13
R3130N/R3131N
•
R3131N16EA/C to R3131N48EA/C
Detector Threshold
Supply Current 1
Supply Current 2
Supply Current 3
VDET (V)
ISS1 (µA)
ISS2 (µA)
ISS3 (µA)
Part Number
14
Min.
Typ.
Max.
R3131N16EA/C
1.576
1.600
1.624
R3131N17EA/C
1.675
1.700
1.725
R3131N18EA/C
1.773
1.800
1.827
R3131N19EA/C
1.872
1.900
1.928
R3131N20EA/C
1.970
2.000
2.030
R3131N21EA/C
2.069
2.100
2.131
R3131N22EA/C
2.167
2.200
2.233
R3131N23EA/C
2.266
2.300
2.334
R3131N24EA/C
2.364
2.400
2.436
R3131N25EA/C
2.463
2.500
2.537
R3131N26EA/C
2.561
2.600
2.639
R3131N27EA/C
2.660
2.700
2.740
R3131N28EA/C
2.758
2.800
2.842
R3131N29EA/C
2.857
2.900
2.943
R3131N30EA/C
2.955
3.000
3.045
R3131N31EA/C
3.054
3.100
3.146
R3131N32EA/C
3.152
3.200
3.248
R3131N33EA/C
3.251
3.300
3.349
R3131N34EA/C
3.349
3.400
3.451
R3131N35EA/C
3.448
3.500
3.552
R3131N36EA/C
3.546
3.600
3.654
R3131N37EA/C
3.645
3.700
3.755
R3131N38EA/C
3.743
3.800
3.857
R3131N39EA/C
3.842
3.900
3.958
R3131N40EA/C
3.940
4.000
4.060
R3131N41EA/C
4.039
4.100
4.161
R3131N42EA/C
4.137
4.200
4.263
R3131N43EA/C
4.236
4.300
4.364
R3131N44EA/C
4.334
4.400
4.466
R3131N45EA/C
4.433
4.500
4.567
R3131N46EA/C
4.531
4.600
4.669
R3131N47EA/C
4.630
4.700
4.770
R3131N48EA/C
4.728
4.800
4.872
Condition
VDD=6.0V
Typ.
1.40
Max.
5.00
Condition
Typ.
Max.
Condition
Typ.
1.20
1.00
1.25
1.10
VDD=VDET
+0.1V
4.00
1.30
VDD=VDET
−0.1V
Max.
3.50
1.15
R3130N/R3131N
Topt=25°C
“H” Output Voltage
“L” Output Voltage
Minimum
Operating
Voltage
Output Delay Time
Detector Threshold
Temperature Coefficient
VOH (V)
VOL (V)
VDDL (V)
Tdelay (ms)
∆VDET/∆Topt
(ppm/°C)
Condition
Min.
Typ.
VDD=VDET
−0.1V
IOH=
−150µA
0.80×
VDD
0.95×
VDD
VDD=VDET
−0.1V
IOH=
−500µA
VDD=VDET
−0.1V
IOH=
−800µA
0.80×
VDD
0.80×
VDD
Condition
Typ.
Max.
VDD=VDET
+0.1V,
IOL=1.2mA
0.16
0.30
Typ.
Max.
Min.
Typ.
Max.
Condition
Typ
∗2
0.90
∗2
1.00
216
240
264
−40°C
<
= Topt <
=
85°C
±100
0.93×
VDD
0.95×
VDD
VDD=VDET
+0.1V,
IOL=3.2mA
0.18
0.40
∗2 CMOS Output Type; describes VDD voltage when Output Voltage becomes equal or more than VDD×0.8V
Nch Open Drain Output Type; describes VDD voltage when Off-leakage Current becomes equal or less than 0.1µA.
15
R3130N/R3131N
OPERATION
•
Operation of R3130N Series
VDD
Ra
Pch
+
Delay
Circuit
Vref
OUT
Comparator
Rb
Nch
⋅ 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 VDD or an external voltage
level.)
GND
Block Diagram
1
2
3
4
5
B
Supply
Voltage
(VDD)
Output
Voltage
(OUT)
A
Detector Threshold(VDET)
=Released Voltage
Minimum Operating
Voltage(VDDL)
GND
Tdelay
GND
Operating Diagram
In the above diagram,
1 Output voltage becomes equal to supply voltage (Nch open drain output Type; equal to pull-up Voltage).
2When supply voltage is down to the detector threshold level (Point A), Vref >
= VDD× Rb/(Ra+Rb) is true. Then,
Output of the comparator is reversed, thus output voltage becomes equal to GND level.
3 When supply voltage is lower than minimum operating voltage, output of transistor is indefinite, therefore
output is also indefinite.
4 Output voltage is equal to GND level.
5 When supply voltage is higher than released voltage (Point B), Vref <
= VDD× Rb/(Ra+Rb) is true. Then output
of the comparator is reversed, thus output voltage becomes equal to supply voltage (Nch open drain output
type; equal to pull-up voltage).
∗ There is no hysteresis range between detector threshold and released voltage.
16
R3130N/R3131N
•
Operation of R3131N Series
VDD
Ra
Pch
+
Delay
Circuit
Vref
OUT
Comparator
Rb
Nch
⋅ 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 VDD or an external voltage
level.)
GND
Block Diagram
2
1
3
4
5
B
Supply
Voltage
(VDD)
Output
Voltage
(OUT)
A
Detector Threshold(VDET)
=Released Voltage
Minimum Operating
Voltage(VDDL)
GND
Tdelay
GND
Operation Diagram
In the above diagram,
1 Output voltage becomes equal to GND level.
2When supply voltage is down to the detector threshold level (Point A), Vref >
= VDD× Rb/(Ra+Rb) is true. Then,
output of the comparator is reversed, thus output voltage becomes equal to supply voltage (Nch open drain
output type; equal to pull-up Voltage).
3 When supply voltage is lower than minimum operating voltage, Output of transistor is indefinite, therefore
output is also indefinite.(Nch open drain output type; Output voltage level is equal to pull-up voltage.)
4 Output voltage is equal to supply voltage. (Nch open drain output type; equal to pull-up voltage.)
5 When supply voltage is higher than released voltage (Point B), Vref <
= VDD× Rb/(Ra+Rb) is true. Then output
of the comparator is reversed, thus output voltage becomes equal to GND level after the output delay time.
∗ There is no hysteresis range between detector threshold and released voltage.
17
R3130N/R3131N
TEST CIRCUITS
ISS
5V
VDD
VDD
R313xN
Series
VIN
VIN
OUT
R313xN
Series
Test Circuit for Supply Current
Test Circuit for Detector Threshold
(CMOS Output type; pull-up part is not necessary.)
VDD
VDD
OUT
R313xN
Series
VOUT
OUT
GND
GND
VIN
470kΩ
VIN
VOH
R313xN
Series
OUT
VOL
V
V
GND
GND
IOUT
Test Circuit for “H” Output Voltage
(CMOS Output Type only)
IOUT
Test Circuit for “L” Output Voltage
(VDET)+1.0V
Input
Voltage
VDD
GND
Ioz
VIN
R313xN
Series
GND
VDD
1.0V
Output
Voltage
OUT
VDS
100%
VIN
R3130N Series
50%
GND
R313xN
Series
VOUT
OUT
GND
R3131N Series
Tdelay
Test Circuit for Off Leakage Current
18
Test Circuit for Output Delay Time
(CMOS Output type; pull-up is not necessary.)
R3130N/R3131N
TYPICAL CHARACTERISTICS
1) Supply Current vs. Input Voltage
R3131N26xx3
R3131N29xx3
2.0
1.6
Topt=85°C
25°C
Supply Current ISS[µA]
Supply Current ISS[µA]
2.0
1.2
-40°C
0.8
0.4
0.0
0
1
2
3
4
5
25°C
1.2
-40°C
0.8
0.4
0.0
6
Topt=85°C
1.6
0
1
Input Voltage VIN[V]
1.6
25°C
Supply Current ISS[µA]
Supply Current ISS[µA]
5
6
2.0
Topt=85°C
1.2
-40°C
0.8
0.4
0
1
2
3
4
5
Topt=85°C
1.2
-40°C
0.8
0.4
0.0
6
25°C
1.6
0
1
2
3
4
5
6
Input Voltage VIN[V]
Input Voltage VIN[V]
R3131N44xx
R3131N46xx5
2.0
2.0
Topt=85°C
1.6
Supply Current ISS[µA]
Supply Current ISS[µA]
4
R3131N40xx
2.0
25°C
1.2
-40°C
0.8
0.4
0.0
3
Input Voltage VIN[V]
R3131N30xx8
0.0
2
0
1
2
3
4
Input Voltage VIN[V]
5
6
Topt=85°C
1.6
25°C
1.2
-40°C
0.8
0.4
0.0
0
1
2
3
4
5
6
Input Voltage VIN[V]
19
R3130N/R3131N
2) Detector Threshold vs. Temperature
R3130N26xx3
R3130N29xx3
2.99
2.65
2.63
2.61
2.59
2.57
-50
-25
0
25
50
75
100
Detector Threshold -VDET[V]
Detector Threshold -VDET[V]
2.67
2.97
2.95
2.93
2.91
2.89
2.87
-50
-25
Temperature Topt[°C]
R3130N30xx8
3.07
3.05
3.03
-25
0
25
50
75
100
Detector Threshold -VDET[V]
Detector Threshold -VDET[V]
3.09
100
75
100
75
100
4.06
4.04
4.02
4.00
3.98
3.96
3.94
3.92
-50
-25
0
25
50
Temperature Topt[°C]
R3130N44xx
R3130N46xx5
4.45
4.69
4.43
4.41
4.39
4.37
4.35
4.33
4.31
-25
0
25
50
Temperature Topt[°C]
75
100
Detector Threshold -VDET[V]
Detector Threshold -VDET[V]
75
R3130N40xx
Temperature Topt[°C]
20
50
4.08
3.11
4.29
-50
25
Temperature Topt[°C]
3.13
3.01
-50
0
4.67
4.65
4.63
4.61
4.59
4.57
4.55
4.53
-50
-25
0
25
50
Temperature Topt[°C]
R3130N/R3131N
3) Nch Driver Output Current vs. VDS
R3130N26xx3
R3130N29xx3
10
VDD=2.0V
8
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
10
6
4
2
1.0V
0
0.0
0.5
1.5
1.0
2.0
VDD=2.0V
8
6
4
2
1.0V
0
0.0
0.5
1.0
VDS[V]
R3130N30xx8
R3130N40xx
VDD=2.0V
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
20
8
6
4
2
1.0V
0
0.0
0.5
1.0
1.5
2.0
VDD=3.0V
15
10
2.0V
5
1.0V
0
0.0
0.5
1.0
R3130N44xx
3.0V
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
20
15
2.0V
5
1.0V
0.5
1.0
1.5
VDS[V]
2.0
2.5
3.0
R3130N46xx5
VDD=4.0V
10
1.5
VDS[V]
VDS[V]
0
0.0
2.0
VDS[V]
10
20
1.5
2.0
2.5
3.0
3.0V
VDD=4.0V
15
10
2.0V
5
1.0V
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
VDS[V]
21
R3130N/R3131N
R3131N26xx3
R3131N29xx3
20
4.0V
6.0V
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
20
VDD=3.0V
15
10
5.0V
5
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
4.0V
6.0V
VDD=3.0V
15
5.0V
10
5
0
0.0
0.5
1.0
VDS[V]
VDD=4.0V
15
5.0V
10
5
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
6.0V
0
0.0
0.5
1.0
VDS[V]
22
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
5
1.5
1.5
2.0
2.5
3.0
R3131N46xx5
VDD=5.0V
1.0
3.0
5
20
10
0.5
2.5
10
VDS[V]
15
0
0.0
2.0
15
R3131N44xx
6.0V
3.0
VDD=5.0V
VDS[V]
20
2.5
R3131N40xx
20
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
6.0V
2.0
VDS[V]
R3131N30xx8
20
1.5
2.0
2.5
3.0
6.0V
VDD=5.0V
15
10
5
0
0.0
0.5
1.0
1.5
VDS[V]
R3130N/R3131N
10
9
8
7
6
5
4
3
2
1
0
R3130N29xx3
VDS=0.5V
Topt=-40°C
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
4) Nch Driver Output Current vs. Input Voltage
R3130N26xx3
25°C
85°C
0
0.5
1
1.5
2
2.5
3
10
9
8
7
6
5
4
3
2
1
0
VDS=0.5V
Topt=-40°C
25°C
85°C
0
0.5
R3130N30xx8
Topt=-40°C
25°C
6
4
85°C
2
0
0.5
1
1.5
2
2.5
3
3.5
25°C
8
6
85°C
4
2
0
0
1
VDS=0.5V
6
85°C
4
2
0
1
2
5
3
Input Voltage VIN[V]
4
5
VDS=0.5V
14
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
25°C
8
0
4
R3130N46xx5
Topt=-40°C
10
3
2
Input Voltage VIN[V]
R3130N44xx
12
3
Topt=-40°C
10
Input Voltage VIN[V]
14
2.5
VDS=0.5V
12
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
12
0
2
R3130N40xx
VDS=0.5V
8
1.5
Input Voltage VIN[V]
Input Voltage VIN[V]
10
1
Topt=-40°C
12
25°C
10
8
6
85°C
4
2
0
0
1
2
3
4
5
Input Voltage VIN[V]
23
R3130N/R3131N
R3131N26xx3
16
Topt=-40°C
14
25°C
12
10
8
85°C
6
4
2
0
0
1
2
3
4
5
VDS=0.5V
16
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
R3131N29xx3
VDS=0.5V
6
Topt=-40°C
25°C
14
12
10
8
85°C
6
4
2
0
0
1
Input Voltage VIN[V]
10
8
85°C
6
4
2
0
0
1
2
3
4
5
6
14
12
8
85°C
6
4
2
0
0
1
25°C
8
85°C
6
4
2
0
1
2
3
4
Input Voltage VIN[V]
24
4
5
6
5
6
VDS=0.5V
16
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
Topt=-40°C
10
0
3
R3131N46xx5
VDS=0.5V
12
2
Input Voltage VIN[V]
R3131N44xx
14
6
10
Input Voltage VIN[V]
16
5
VDS=0.5V
Topt=-40°C
25°C
16
Nch Driver Output Current
IOUT[mA]
Nch Driver Output Current
IOUT[mA]
12
4
R3131N40xx
VDS=0.5V
Topt=-40°C
25°C
14
3
Input Voltage VIN[V]
R3131N30xx8
16
2
Topt=-40°C
14
25°C
12
10
8
85°C
6
4
2
0
0
1
2
3
4
Input Voltage VIN[V]
5
6
R3130N/R3131N
5) Pch Driver Output Current vs. Input Voltage
R3130N26xx3
R3130N29xx3
12
VDS=-2.1V
10
Pch Driver Output Current
IOUT[mA]
Pch Driver Output Current
IOUT[mA]
12
-1.5V
8
-1.0V
6
4
-0.5V
2
0
0
1
2
3
4
5
6
VDS=-2.1V
10
-1.5V
8
-1.0V
6
4
-0.5V
2
0
0
1
R3130N30xx8
VDS=-2.1V
10
Pch Driver Output Current
IOUT[mA]
Pch Driver Output Current
IOUT[mA]
5
6
R3130N40xx
-1.5V
8
6
-1.0V
4
-0.5V
2
0
1
2
3
4
5
6
VDS=-2.1V
10
-1.5V
8
6
-1.0V
4
-0.5V
2
0
0
1
2
3
4
5
6
Input Voltage VIN[V]
Input Voltage VIN[V]
R3130N44xx
R3130N46xx5
12
12
VDS=-2.1V
10
Pch Driver Output Current
IOUT[mA]
Pch Driver Output Current
IOUT[mA]
4
12
12
-1.5V
8
6
-1.0V
4
-0.5V
2
0
3
Input Voltage VIN[V]
Input Voltage VIN[V]
0
2
0
1
2
3
4
Input Voltage VIN[V]
5
6
VDS=-2.1V
10
-1.5V
8
6
-1.0V
4
-0.5V
2
0
0
1
2
3
4
5
6
Input Voltage VIN[V]
25
R3130N/R3131N
R3131N26xx3
R3131N29xx3
5
VDS=-2.1V
-1.5V
3
-1.0V
2
-0.5V
1
0
0
0.5
1
1.5
2
2.5
VDS=-2.1V
Pch Driver Output Current
IOUT[mA]
Pch Driver Output Current
IOUT[mA]
4
4
-1.5V
3
-1.0V
2
-0.5V
1
0
3
0
Input Voltage VIN[V]
-1.5V
3
-1.0V
2
-0.5V
1
2
3
8
VDS=-2.1V
7
Pch Driver Output Current
IOUT[mA]
Pch Driver Output Current
IOUT[mA]
4
1
6
-1.5V
5
4
-1.0V
3
-0.5V
2
1
0
4
1
0
R3131N44xx
4
5
R3131N46xx5
VDS=-2.1V
8
-1.5V
6
-1.0V
4
-0.5V
2
0
1
2
3
Input Voltage VIN[V]
4
5
Pch Driver Output Current
IOUT[mA]
Pch Driver Output Current
IOUT[mA]
3
10
10
26
2
Input Voltage VIN[V]
Input Voltage VIN[V]
0
4
R3131N40xx
VDS=-2.1V
0
3
Input Voltage VIN[V]
R3131N30xx8
5
0
2
1
VDS=-2.1V
8
-1.5V
6
-1.0V
4
-0.5V
2
0
0
1
2
3
Input Voltage VIN[V]
4
5
R3130N/R3131N
50
40
30
20
10
0
-50
-25
0
25
50
75
100
R3131N29xx3
Output Delay Time at Detection
Mode
Trst[µs]
Output Delay Time at Detection
Mode
Trst[µs]
6) Output Delay Time at Detection Mode vs. Temperature
R3131N26xx3
50
40
30
20
10
0
-50
-25
40
30
20
10
0
25
50
75
100
30
20
10
50
Temperature Topt[°C]
75
100
Output Delay Time at Detection
Mode
Trst[µs]
Output Delay Time at Detection
Mode
Trst[µs]
100
75
100
30
20
10
0
-50
-25
0
25
50
R3131N46xx5
40
25
75
40
R3131N44xx
0
100
Temperature Topt[°C]
50
-25
75
50
Temperature Topt[°C]
0
-50
50
R3131N40xx
Output Delay Time at Detection
Mode
Trst[µs]
Output Delay Time at Detection
Mode
Trst[µs]
R3131N30xx8
50
-25
25
Temperature Topt[°C]
Temperature Topt[°C]
0
-50
0
50
40
30
20
10
0
-50
-25
0
25
50
Temperature Topt[°C]
27
R3130N/R3131N
7) Power-on Reset Delay Time vs. Temperature
R3131NxxAx
R3131NxxBx
140
65
55
45
35
-50
-25
0
25
50
75
100
Power-on Reset Delay Time
Tdelay[ms]
Power-on Reset Delay Time
Tdelay[ms]
75
120
100
80
60
-50
-25
Temperature Topt[°C]
R3131NxxDx
175
-25
0
25
50
75
100
100
75
100
450
400
350
0
25
50
Temperature Topt[°C]
320
280
240
200
-50
-25
0
25
50
Temperature Topt[°C]
R3131NxxHx
-25
Power-on Reset Delay Time
Tdelay[ms]
Power-on Reset Delay Time
Tdelay[ms]
200
500
Power-on Reset Delay Time
Tdelay[ms]
75
R3131NxxEx
Temperature Topt[°C]
28
50
360
225
300
-50
25
Temperature Topt[°C]
250
150
-50
0
75
100
R3130N/R3131N
TECHNICAL NOTES
VDD
VDD
R1
R
VDD
VDD
R313xN
Series
GND
Figure A
R2
OUT
R313xN
Series
OUT
GND
Figure B
As shown wiring in Figure A and Figure B may cause unstable operation by cross conduction current at
detection of all types of R313xN Series. The detector threshold may shift because of voltage drop by
consumption current of this IC itself.
At the power-on state, if VDD starts up from minimum input voltage (1V) or less very rapidly, the internal
initialization may not be finished, and output may be unstable. If the transient time from the minimum input
voltage to the detector threshold level at the power-on state is 30µs or less, fully evaluation is necessary.
29