R3111x Series
Low Input Voltage Detector
The R3111x Series are CMOS-based voltage detector ICs that can operate at low voltage.
R3111x is a simple voltage detector without an internal delay circuit.
FEATURES
•
Supply Current (I
SS1
) ·······················Typ. 1μA (V
DD
=-V
DET
+2V, R3111x15x)
•
Operating Voltage Range (V
DD
) ······0.7V to 10.0V (Topt=25°C)
•
Detector Threshold Range (-V
DET
) ·······0.9V to 6.0V (internally fixed)
•
Reset Signal ···································"L" (A and C Versions)
•
"H" (B Version)
Detector Threshold Accuracy ·········± 2%
•
Temp. coeff. of Detector Threshold··· Typ.
±
100ppm/°C
•
Two Output Types ·························· Nch. Open Drain and CMOS
•
Packages ······································· SON1612-6, SC-82AB, SC-88A,
SOT-23-3,SOT-23-5, SOT-89, TO-92
BLOCK DIAGRAMS
R3111xxxxA
(Nch. open drain "L" output)
V
DD
OUT
R3111xxxxB
(Nch. open drain "H" output)
V
DD
OUT
V
DD
R3111xxxxC
(CMOS "L" output)
OUT
Vref
Vref
Vref
GND
GND
GND
SELECTION GUIDES
Package
Quantity per Reel
SON1612-6
4,000 pcs
SC-82AB
3,000 pcs
SC-88A
3,000 pcs
SOT-23-3
3,000 pcs
SOT-23-5
3,000 pcs
SOT-89
1,000 pcs
TO-92
2,500 pcs
Part No.
R3111D.xx.1.
∗
-TR-F
R3111Q.xx.1.
∗
-TR-F
R3111Q.xx.2.
∗
-TR-F
R3111N.xx.2.
∗
-TR-F
R3111N.xx.1.
∗
-TR-F
R3111H.xx.1.
∗
-T1-F
R3111E.xx.1.
∗
-TZ-F
TIMING CHART
Released Voltage
+V
DET
Supply Detector Threshold
-V
DET
Voltage
(V
DD
) Minimum Operating
V
DDL
GND
Voltage
Pull-up Voltage
Output
Voltage
(V
OUT
)
Hysteresis
Hysteresis
Hysteresis
GND
t
PLH
t
PLH
t
PLH
R3111xxxxA
R3111xxxxB
R3111xxxxC
.xx.
: Specify the detector threshold within the range
0.9V (.09.) to 6.0V (.60.) in 0.1V steps.
.∗
: Select the output type from (.A.) Nch. open drain "L" output,
(.B.) Nch. open drain "H" output or (.C.) CMOS "L" output.
PACKAGES (Top View)
SON1612-6
6
5
4
SC-82AB
4
3
SC-88A
5
4
SOT-23-3
3
SOT-23-5
5
4
SOT-89
TO-92
1
2
3
1
2
1
2
3
1
2
1
2
3
1
2
3
1
2
3
1
2
3
4
5
6
OUT
V
DD
GND
NC
V
DD
NC
1
2
3
4
OUT
V
DD
NC
GND
1
2
3
4
5
OUT
NC
V
DD
NC
GND
1
2
3
OUT
GND
V
DD
1
2
3
4
5
OUT
V
DD
GND
NC
NC
1
2
3
OUT
V
DD
GND
1
2
3
V
DD
GND
OUT
APPLICATIONS
•
Microcontroller and logic circuit reset
•
Battery checker
•
Window comparator
No.EK-071-091101
•
Wave shaping circuit
•
Battery back-up circuit
•
Power failure detector
CMOS Voltage Detector
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