R3114x SERIES
0.8% LOW VOLTAGE DETECTOR
NO.EA-160-090707
OUTLINE
The R3114x series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low
supply current, which can be operated at an extremely low voltage and is used for system reset as an example.
Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting,
an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does
not require any adjustment.
Two output types, Nch open drain type and CMOS type are available.
The R3114x series are operable at a lower voltage than that of the R3111x series, and can be driven by a
single battery.
Three types of packages, SOT-23-5, SC-82AB, and DFN(PLP)1010-4 are available.
FEATURES
•
Supply Current ......................................................................Typ. 0.35μA (-V
DET
=1.5V,
V
DD
=-V
DET
+1V)
•
Operating Voltage Range......................................................0.5V to 6.0V (T
opt
=25°C)
•
Detector Threshold Range....................................................Stepwise setting with a step of 0.1V in the range
of 0.7V to 5.0V
•
Detector Threshold Accuracy................................................±0.8% (-V
DET
≥
1.5V)
•
Temperature-Drift Coefficient of Detector Threshold ............Typ.
±30ppm/°C
•
Output Types.........................................................................Nch Open Drain "L" and CMOS
•
Packages ..............................................................................SOT-23-5, SC-82AB, DFN(PLP)1010-4
APPLICATIONS
•
•
•
•
•
•
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
1
R3114x
BLOCK DIAGRAMS
Nch Open Drain Output (R3114xxx1A)
CMOS Output (R3114xxx1C)
V
DD
OUT
V
DD
OUT
Vref
GND
Vref
GND
SELECTION GUIDE
The package type, the detector threshold, the output type and the taping type for the ICs can be selected at
the users’ request. The selection can be made with designating the part number as shown below;
R3114xxx1x-xx -x
←
Part Number
↑↑
a b
Code
a
↑ ↑ ↑
c d e
Contents
Designation of Package Type;
N: SOT-23-5
Q: SC-82AB
K: DFN(PLP)1010-4
Setting Detector Threshold (-V
DET
);
Stepwise setting with a step of 0.1V in the range of 0.7V to 5.0V is possible.
Designation of Output Type;
A: Nch Open Drain
C: CMOS
Designation of Taping Type ;
TR (Refer to Taping Specifications; TR type is the standard direction.)
Designation of Composition of pin plating
-F : Lead free solder plating (SOT-23-5, SC-82AB)
None: Au plating
(DFN(PLP)1010-4)
b
c
d
e
2
R3114x
PIN CONFIGURATIONS
•
DFN(PLP)1010-4
∗
Top View
4
3
Bottom View
3
4
1
2
2
1
•
SOT-23-5
5
4
•
SC-82AB
4
3
(mark side)
(mark side)
1
2
3
1
2
PIN DESCRIPTIONS
•
DFN(PLP)1010-4
∗
•
Description
SOT-23-5
Description
Output Pin
("L" at detection, "H" at released)
Pin No. Symbol
1
2
3
4
OUT
NC
GND
V
DD
Output Pin
Pin No. Symbol
1
2
3
4
5
OUT
V
DD
GND
NC
NC
("L" at detection, "H" at released)
No Connection
Ground Pin
Input Pin
Input Pin
Ground Pin
No Connection
No Connection
∗)
Tab is GND level. (They are connected to the
reverse side of this IC.)
The tab is better to be connected to the GND,
but leaving it open is also acceptable.
•
SC-82AB
Description
Output Pin
("L" at detection, "H" at released)
Pin No. Symbol
1
2
3
4
OUT
V
DD
NC
GND
Input Pin
No Connection
Ground Pin
3
R3114x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
OUT
I
OUT
P
D
Supply Voltage
Output Voltage (Nch Open Drain Output)
Output Voltage (CMOS Output)
Output Current
Power Dissipation (SOT-23-5)
Power Dissipation (SC-82AB)
∗
∗
∗
Item
Rating
7.0
V
SS
−0.3
to 7.0
V
SS
−0.3
to V
DD
+0.3
20
420
380
400
−40
to 85
−55
to 125
Unit
V
V
mA
mW
°C
°C
Power Dissipation (DFN(PLP)1010-4)
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
∗)
For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field.
The functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
4
R3114x
ELECTRICAL CHARACTERISTICS
•
R3114x071A/C
Item
Detector Threshold
Detector Threshold Hysteresis
Supply Current
Maximum Operating Voltage
Minimum Operating Voltage
∗1
Output Current
(Driver Output Pin)
Nch Driver Leakage Current
∗3
Detector Threshold
Temperature Coefficient
Output Delay Time
T
opt
=25°C
−40°C ≤
T
opt
≤
85°C
Nch
Pch
∗2
V
DD
=0.55V,
V
DS
=0.05V
V
DD
=0.6V,
V
DS
=0.5V
V
DD
=4.5V,
V
DS
=−2.1V
7
0.02
0.65
80
±30
40
V
DD
=0.6V
V
DD
=1.7V
values indicate
−40°C ≤
T
opt
≤
85°C, unless otherwise noted.
Conditions
T
opt
=25°C
−40°C ≤
T
opt
≤
85°C
Min.
0.6880
0.6775
0.028
Typ.
0.7
Topt=25°C
Symbol
-V
DET
V
HYS
I
SS
V
DDH
V
DDL
Max.
0.7120
0.7225
0.049
1.4
1.2
6
0.50
0.55
Unit
V
V
μA
V
V
μA
mA
mA
nA
ppm
/°C
μs
I
OUT
I
LEAK
Δ-V
DET
/
ΔT
opt
t
PLH
V
DD
=6.0V,
V
DS
=7.0V
−40°C ≤
T
opt
≤
85°C
V
DD
=0.55V→2.7V
•
R3114x151A/C
Item
values indicate
−40°C ≤
T
opt
≤
85°C, unless otherwise noted.
Conditions
T
opt
=25°C
−40°C ≤
T
opt
≤
85°C
V
DD
=1.4V
V
DD
=2.5V
T
opt
=25°C
−40°C ≤
T
opt
≤
85°C
Nch
Pch
∗2
V
DD
=0.55V,
V
DS
=0.05V
V
DD
=1.0V,
V
DS
=0.5V
V
DD
=4.5V,
V
DS
=−2.1V
7
0.40
0.65
80
±30
40
0.35
Min.
1.4880
1.4775
0.060
Typ.
1.5
Topt=25°C
Symbol
-V
DET
V
HYS
I
SS
V
DDH
V
DDL
Max.
1.5120
1.5225
0.105
1.4
1.2
6
0.50
0.55
Unit
V
V
μA
V
V
μA
mA
mA
nA
ppm
/°C
μs
Detector Threshold
Detector Threshold Hysteresis
Supply Current
Maximum Operating Voltage
Minimum Operating Voltage
∗1
Output Current
(Driver Output Pin)
Nch Driver Leakage Current
∗3
Detector Threshold
Temperature Coefficient
Output Delay Time
I
OUT
I
LEAK
Δ-V
DET
/
ΔT
opt
t
PLH
V
DD
=6.0V,
V
DS
=7.0V
−40°C ≤
T
opt
≤
85°C
V
DD
=0.55V→3.5V
All of unit are tested and specified under load conditions such that T
opt
=25°C
except for Detector Threshold
Temperature Coefficient.
∗1:
Minimum operating voltage means the value of input voltage when output voltage maintains 0.1V or less.
(In case of Nch Open Drain Output type, the output pin is pulled up with a resistance of 470kΩ to 5.0V)
∗2:
In case of CMOS type
∗3:
In case of Nch Open Drain type
5
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