R3118x Series
0.6V detect VD with Delay Function and SENSE pin
The R3118x Series are CMOS-based voltage detector ICs with the built-in output delay circuit that can operate at low voltage. Since
R3118x 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. The detector threshold can be specified from 0.6V. The delay time can be set
with an external capacitor connected to C
D
pin. In addition to SOT-23-5 and SC-88A packages, a 1.2mm square DFN(PLP)1212-6
package is also available.
FEATURES
•
Supply Current (I
SS
) ························Typ. 0.4μA (at release, V
DD
=6V)
•
Operating Voltage Range (V
DD
) ······1.0V to 6.0V
•
Detector Threshold Range (-V
DET
) ··0.6V to 5.0V (internally fixed)
•
Output Delay···································Typ. 100ms delay set with a 0.022μF
external capacitor
•
Reset Signal ···································"L"
•
Detector Threshold Accuracy ·········± 1.5% (-V
DET
>
1.6V)
=
•
Temp. coeff. of Detector Threshold ······Typ.
±
30ppm/°C
•
Two Output Types···························Nch. Open Drain and CMOS
•
Packages········································DFN(PLP)1212-6, 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
R3118xxxxA
(Nch. open drain output)
SENSE
V
DD
D
OUT
R3118xxxxC
(CMOS output)
SENSE
V
DD
Delay
Circuit
Vref
GND
C
D
Delay
Circuit
Vref
D
OUT
GND
C
D
SELECTION GUIDES
Package
DFN(PLP)1212-6
SC-88A
SOT-23-5
Quantity per Reel
Part No.
5,000 pcs
R3118K.xx.1
∗
-TR
3,000 pcs
R3118Q.xx.2
∗
-TR-F
3,000 pcs
R3118N.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 0.6 (.06.) 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
reset
t
delay
R3118xxxxA
t
reset
t
delay
R3118xxxxC
PACKAGES (Top View)
DFN(PLP)1212-6
6
5
4
SC-88A
5
4
SOT-23-5
5
4
1
2
3
1
2
3
1
2
3
1
2
3
4
5
6
SENSE
C
D
GND
V
DD
NC
D
OUT
1
2
3
4
5
D
OUT
GND
V
DD
C
D
SENSE
1
2
3
4
5
D
OUT
V
DD
GND
C
D
SENSE
APPLICATIONS
•
Microcontroller and logic circuit reset
•
Battery checker
No.EK-242-091101
•
Wave shaping circuit
•
Battery back-up circuit
•
Window comparator
•
Power failure detector
CMOS Voltage Detector
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