R3114x Series
0.8% Accuracy, 0.5V Operating Voltage Detector
The R3114x Series are CMOS-based voltage detector ICs without output delay circuit. The R3114x can operate at low voltage from
0.5V and the detector threshold can be specified from 0.7V. The detector threshold accuracy as high as
±
0.8% helps to increase
stable operating area coupled with lower voltage. The R3114x is less affected by temperature changes and the accuracy of
temperature-drift coefficient of the detector threshold is as high as
±
30ppm/°C. In addition to SOT-23-5 and SC-82AB packages, a
1mm square DFN(PLP)1010-4 package is also available.
FEATURES
•
Supply Current (I
SS
) ························Typ. 0.35μA (V
DD
=-V
SET
+1.0V, R3114x151x)
•
Operating Voltage Range (V
DD
) ······0.5V to 6.0V
•
Detector Threshold Range (-V
DET
) ··0.7V to 5.0V (Internally fixed)
•
Reset Signal ···································"L"
•
Detector Threshold Accuracy··········± 0.8%
•
Temp. coeff. of Detector Threshold····Typ.
±
30ppm/°C
•
Two Output Types······························Nch. Open Drain Output and
•
Packages ···········································DFN(PLP)1010-4,
SC-82AB, SOT-23-5
CMOS
(The above shows specification at Topt=25
°
C. Design assurance value at -40
°
C
≤
Topt
≤
85
°
C is also available. For details, please refer to the datasheet.)
BLOCK DIAGRAMS
R3114xxx1A
(Nch. open drain output)
R3114xxx1C
(CMOS output)
V
DD
OUT
V
DD
OUT
Vref
GND
Vref
GND
SELECTION GUIDES
Halogen Free
Package
DFN(PLP)1010-4
SC-82AB
SOT-23-5
Q'ty per Reel
Part No.
10,000 pcs R3114K.xx.1.
∗
.-TR
3,000 pcs R3114Q.xx.1.
∗
.-TR-FE
3,000 pcs R3114N.xx.1.
∗
.-TR-FE
TIMING CHARTS
Release Voltage +
V
DET
Supply
Voltage Detector Threshold
-V
DET
(V
DD
)
Minimum Operating
V
DDL
Voltage
GND
Pull-up Voltage
Output
Voltage
(V
OUT
)
Hysteresis
.xx.
: Specify the detector threshold within the range of
0.7V (.07.) to 5.0V (.50.) in 0.1V steps.
.
∗
.
: Select the output type from (.A.) Nch. open drain or (.C.) CMOS.
PACKAGES (Top View)
DFN(PLP)1010-4
4
3
GND
SC-82AB
4
3
SOT-23-5
5
4
t
PHL
R3114xxx1A
Release Voltage +
V
DET
Supply
Voltage Detector Threshold
-V
DET
(V
DD
)
Minimum Operating
V
DDL
Voltage
GND
Pull-up Voltage
Output
Voltage
(V
OUT
)
t
PLH
∗
Hysteresis
1
2
1
2
1
2
3
1
2
3
4
OUT
NC
GND
V
DD
1
2
3
4
OUT
V
DD
NC
GND
1
2
3
4
5
OUT
V
DD
GND
NC
NC
GND
∗
) The tab is substrate level (GND).
t
PHL
t
PLH
R3114xxx1C
APPLICATIONS
•
Microcontroller and logic circuit reset
•
Wave shaping circuit
No.EK-160-121001
•
Battery checker
•
Battery back-up circuit
•
Window comparator
•
Power failure detector
CMOS Voltage Detector
R3114x Series
0.8% Accuracy, 0.5V Operating Voltage Detector
CMOS Voltage Detector
COMPARISON OF VOLTAGE DETECTORS
R3114x Series
Supply Current (at released)
Operating Voltage Range
Detector Threshold Range
Detector Threshold Accuracy
Temp. coeff. of Detector Threshold
Typ. 0.35μA
0.5V to 6.0V
0.7V to 5.0V
±0.8%
Typ.
±30ppm/°C
R3111x Series
Typ. 1μA
0.7V to 10V
0.9V to 6.0V
±2%
Typ.
±100ppm/°C
Packages
DFN(PLP)1010-4 (1.0mm×1.0mm) SON1612-6 (1.6mm×1.6mm)
SC-82AB (2.0mm×2.1mm)
SC-82AB (2.0mm×2.1mm)
SOT-23-5 (2.9mm×2.8mm)
SC-88A (2.0mm×2.1mm)
SOT-23-3 (2.9mm×2.8mm)
SOT-23-5 (2.9mm×2.8mm)
SOT-89 (4.5mm×4.0mm)
Lower Voltage and Higher Accuracy
WHAT IS DFN(PLP)1010-4?
Lower voltage and higher accuracy of the detector threshold increase the
stable operating area.
The efficient and effective use of battery also contributes to energy saving.
The DFN(PLP)package is a leadless package using an
electroforming sheet in place of lead frame.
This extremely compact package features increased
power dissipation and conversion to thinner type.
The name is representing by a combination of the body
size and the number of pins, i.e., DFN(PLP)1010-4
stands for the body size of 1.0mm
×
1.0mm and 4pins.
An environment-friendly, leadfree package with gold
plated contacts complies with the RoHS Directive.
The currently available information as of October 2012 is provided in this New Product News.
EK-160-121001
Electronics Design Contest
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