R3117x Series
Low Voltage Detector with SENSE pin
The R3117x Series are CMOS-based voltage detector ICs that can operate at low voltage. Since R3117x has a SENSE pin for
monitoring voltage separately from the power pin, its reset signal does not become unstable as long as power supply is secured and
the "L" can be maintained.
FEATURES
•
Supply Current (I
SS
) ························Typ. 0.29μA (V
SENSE
=-V
DET
×
1.1)
•
Operating Voltage Range (V
DD
) ······1.0V to 6.0V
•
Detector Threshold Range (-V
DET
) ······0.7V to 5.0V (internally fixed)
•
Reset Signal ···································"L"
•
Detector Threshold Accuracy ·········± 1%
•
Temp. coeff. of Detector Threshold ····· Typ.
±
30ppm/°C
•
Output Type ··································· Nch. Open Drain and CMOS
•
Packages ······································· DFN(PLP)1010-4, SC-88A,
SOT-23-5
(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
R3117xxxxA
(Nch. open drain output)
SENSE
SENSE
R3117xxxxC
(CMOS output)
V
DD
D
OUT
V
DD
D
OUT
Vref
GND
Vref
GND
SELECTION GUIDES
Package
DFN(PLP)1010-4
SC-88A
SOT-23-5
Quantity per Reel
Part No.
10,000 pcs
R3117K.xx.1
∗
-TR
3,000 pcs
R3117Q.xx.2
∗
-TR-F
3,000 pcs
R3117N.xx.1
∗
-TR-F
(V
DD
)
TIMING CHART
Supply Voltage
Minimum Operating V
DDL
Voltage
Released Voltage +V
DET
Detector Threshold -V
DET
Detector Threshold
Hysteresis
Detector Threshold
Hysteresis
.xx.
: Specify the detector threshold within 0.7V (.07.) to 5.0V (.50.)
in 0.1V steps.
.
∗
.
: Select the output type from (.A.) Nch. open drain or (.C.) CMOS.
SENSE Pin Voltage
(V
SENSE
)
GND
Pull-up Voltage
Supply Voltage
(V
DD
)
Output Voltage
(V
OUT
)
GND
t
PHL
R3117xxxxA
t
PLH
t
PHL
R3117xxxxC
t
PLH
PACKAGES
DFN(PLP)1010-4
Top View
4
3
SC-88A
5
4
SOT-23-5
5
4
Bottom View
3
4
∗
1
2
2
1
1
2
3
1
2
3
1
2
3
4
D
OUT
SENSE
GND
V
DD
1
2
3
4
5
V
DD
NC
GND
SENSE
D
OUT
1
2
3
4
5
D
OUT
V
DD
GND
NC
SENSE
∗
) The tab is substrate level (GND).
APPLICATIONS
•
Microcontroller and logic circuit reset
•
Battery checker
•
Window comparator
No.EK-186-091101
•
Wave shaping circuit
•
Battery back-up circuit
•
Power failure detector
CMOS Voltage Detector
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Microcontroller MCU
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