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 (ISS1)·······················Typ. 1μA (VDD=-VDET+2V, R3111x15x)
• Operating Voltage Range (VDD) ······0.7V to 10.0V (Topt=25°C)
• 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
•
Detector Threshold Range (-VDET) ·······0.9V to 6.0V (internally fixed)
• Reset Signal ···································"L" (A and C Versions)
"H" (B Version)
• Detector Threshold Accuracy ·········± 2%
BLOCK DIAGRAMS
R3111xxxxA
R3111xxxxB
R3111xxxxC
(Nch. open drain "L" output)
(Nch. open drain "H" output)
(CMOS "L" output)
VDD
VDD
VDD
OUT
OUT
OUT
GND
Vref
Vref
Vref
GND
GND
SELECTION GUIDES
TIMING CHART
Package
Quantity per Reel
4,000 pcs
Part No.
Released Voltage
Detector Threshold
+VDET
SON1612-6
SC-82AB
SC-88A
SOT-23-3
SOT-23-5
SOT-89
R3111D
.
xx.
1.
∗-TR-F
Hysteresis
Hysteresis
Hysteresis
Supply
Voltage
-
VDET
3,000 pcs
3,000 pcs
3,000 pcs
3,000 pcs
R3111Q
R3111Q
.
xx
xx.
.
1
.
∗-TR-F
∗-TR-F
(VDD) Minimum Operating
Voltage
VDDL
GND
.
2.
Pull-up Voltage
R3111N
R3111N
R3111H
.
xx
xx.
xx.
.
2.
1.
1.
∗-TR-F
∗-TR-F
∗-T1-F
Output
Voltage
(VOUT)
.
.
GND
1,000 pcs
tPLH
tPLH
tPLH
TO-92
2,500 pcs
R3111E
.
xx
.
1
.
∗-TZ-F
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
SC-82AB
SC-88A
SOT-23-3
SOT-23-5
SOT-89
TO-92
4
3
5
4
6
5
4
3
5
4
1
2
3
1
2
3
1
2
1
2
3
1
2
3
1
2
3
1
2
1
2
3
4
5
6
OUT
VDD
GND
NC
VDD
NC
1
OUT
VDD
NC
1
OUT
NC
VDD
NC
1
2
3
OUT
GND
VDD
1
2
3
4
5
OUT
VDD
GND
NC
1
2
3
OUT
VDD
GND
1
2
3
VDD
GND
OUT
2
3
4
2
3
4
5
GND
GND
NC
APPLICATIONS
• Microcontroller and logic circuit reset
• Battery checker
• Window comparator
• Wave shaping circuit
• Battery back-up circuit
• Power failure detector
No.EK-071-091101
CMOS Voltage Detector