R3111E (TO-92) is the discontinued product as of April, 2017.
R3111x SERIES
LOW VOLTAGE DETECTOR
NO.EA-056-170428
OUTLINE
The R3111x series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low
supply current, which can be operated at an extremely low voltage and is used for system reset as an example.
Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting,
an output driver and a hysteresis circuit. The detector threshold is fixed with high accuracy internally and does
not require any adjustment.
Three output types, Nch open drain “L” type, Nch open drain “H” type and CMOS type are available.
The R3111x Series are operable at a lower voltage than that for the Rx5VL series, and can be driven by a
single battery.
Seven types of packages, TO-92, SOT-89, SOT-23-3, SOT-23-5, SC-82AB, SC-88A and SON1612-6 are
available.
FEATURES
Supply Current ...................................................................... Typ. 0.8A (-V
DET
½1.5V,
V
DD
½-V
DET
0.1V)
Operating Voltage Range...................................................... 0.7V to 10.0V (Ta½25C)
Detector Threshold Range .................................................... 0.9V to 6.0V (0.1V steps)
(
For other voltages, please refer to MARK INFORMATIONS.)
Detector Threshold Accuracy ................................................
2.0%
Temperature-Drift Coefficient of Detector Threshold ............ Typ.
100ppm/C
Output Types ......................................................................... Nch Open Drain “L”, Nch Open Drain “H”, and
CMOS
Packages .............................................................................. SON1612-6, SC-82AB, SC-88A, SOT-23-3,
SOT-23-5, SOT-89, TO-92
APPLICATIONS
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
1
R3111E (TO-92) is the discontinued product as of April, 2017.
R3111x
BLOCK DIAGRAMS
R3111xxxxA
R3111xxxxB
V
DD
OUT
V
DD
OUT
Vref
GND
Vref
GND
R3111xxxxC
V
DD
OUT
Vref
GND
2
R3111E (TO-92) is the discontinued product as of April, 2017.
R3111x
SELECTION GUIDE
The package type, the detector threshold, the output type and the taping type for the ICs can be selected at
the users’ request. The selection can be made with designating the part number as shown below;
Product Name
R3111Dxx1-TR-FE
R3111Qxx1-TR-FE
R3111Qxx2-TR-FE
R3111Nxx1-TR-FE
R3111Nxx2$-TR-FE
R3111Hxx1$-T1-FE
R3111Exx1$-TZ-F
Package
SON1612-6
SC-82AB
SC-88A
SOT-23-5
SOT-23-3
SOT-89
TO-92
Quantity per Reel
4,000 pcs
3,000 pcs
3,000 pcs
3,000 pcs
3,000 pcs
1,000 pcs
2,500 pcs
Pb Free
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Halogen Free
Yes
Yes
Yes
Yes
Yes
Yes
No
xx : The detector threshold can be designated in the range from 0.9V(09) to 6.0V(60) in 0.1V steps.
(For other voltages, please refer to MARK INFORMATIONS.)
: Designation of Output Type
(A) Nch Open Drain (Output "L" at Detection)
(B) Nch Open Drain (Output "H" at Detection)
(C) CMOS (Output "L" at Detection)
$ : Designation of Output Type
(A) Nch Open Drain (Output "L" at Detection)
(C) CMOS (Output "L" at Detection)
3
R3111E (TO-92) is the discontinued product as of April, 2017.
R3111x
PIN CONFIGURATIONS
TO-92
SOT-89
SOT-23-3
3
SOT-23-5
5
4
(mark side)
(mark side)
1
2
3
(mark side)
(mark side)
1
2
1
2
3
1
2
3
SC-82AB
4
3
SC-88A
5
4
SON1612-6
6
5
4
(mark side)
(mark side)
(mark side)
1
2
1
2
3
1
2
3
PIN DESCRIPTIONS
TO-92
Pin No.
1
2
3
Symbol
V
DD
GND
OUT
SOT-89
Pin No.
1
2
3
Symbol
OUT
V
DD
GND
SOT-23-3
Pin No.
1
2
3
Symbol
OUT
GND
V
DD
SOT-23-5
Pin No.
1
2
3
4
5
SC-82AB
Pin No.
1
2
3
4
Symbol
OUT
V
DD
NC
GND
SC-88A
Pin No.
1
2*
3
4
5
Symbol
OUT
NC
V
DD
NC
GND
SON1612-6
Pin No.
1
2
3
4
5
6
Symbol
OUT
V
DD
GND
NC
V
DD
NC
Symbol
OUT
V
DD
GND
NC
NC
*
Pin No. 2 is connected to the bottom of the IC. It is recommended that the pin be connected to the VDD pin on the board, or
otherwise be left floating so that there is no contact with other potentials.
4
R3111E (TO-92) is the discontinued product as of April, 2017.
R3111x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
OUT
I
OUT
Supply Voltage
Output Voltage (CMOS)
Output Voltage (Nch)
Output Current
Power Dissipation (TO-92)*
Power Dissipation (SOT-89)*
Power Dissipation (SOT-23-3)*
P
D
Power Dissipation (SOT-23-5)*
Power Dissipation (SC-82AB)*
Power Dissipation (SC-88A)*
Power Dissipation (SON1612-6)*
Ta
Tstg
Operating Temperature Range
Storage Temperature Range
Item
Rating
12
V
SS
0.3
to V
DD
0.3
V
SS
0.3
to 12
70
300
900
420
420
380
380
500
40
to 85
55
to 125
C
C
mW
Unit
V
V
mA
* ) For Power Dissipation, please refer to PACKAGE INFORMATION.
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause the
permanent damages and may degrade the life time and safety for both device and system using the device
in the field. The functional operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS (ELECTRICAL CHARACTERISTICS)
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the
recommended operating conditions, even if when they are used over such conditions by momentary
electronic noise or surge. And the semiconductor devices may receive serious damage when they continue
to operate over the recommended operating conditions.
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