R3111x SERIES
LOW VOLTAGE DETECTOR
NO.EA-056-070829
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.
Six types of packages, TO-92, SOT-89, SOT-23-3, SOT-23-5, SC-82AB, and SON1612-6 are available.
FEATURES
Supply Current ......................................................................Typ. 0.8µA (V
DD
=1.5V)
Range of Operating Voltage..................................................0.7V to 10.0V (Topt=25°C)
Detector Threshold................................................................0.9V to 6.0V
Accuracy Detector Threshold................................................±2.0%
Temperature-Drift Coefficient of Detector Threshold ............Typ.
±100ppm/°C
Output Types.........................................................................Nch Open Drain “L”, Nch Open Drain “H”, and
CMOS
•
Packages ..............................................................................TO-92, SOT-89, SOT-23-3, SOT-23-5,
SC-82AB, SON1612-6
•
•
•
•
•
•
APPLICATIONS
•
•
•
•
•
•
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
1
R3111x
BLOCK DIAGRAMS
R3111xxxxA
R3111xxxxB
V
DD
OUT
V
DD
OUT
Vref
GND
Vref
GND
R3111xxxxC
V
DD
OUT
Vref
GND
2
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;
R3111xxxxx-xx-x
←
Part Number
↑ ↑↑↑ ↑ ↑
a b cd e f
Code
Designation of Package Type;
D: SON1612-6
E: TO-92
H: SOT-89
N: SOT-23-5, SOT-23-3
Q: SC-82AB
Setting Detector Threshold (−V
DET
);
Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible.
Designation of Package Type
1: except SOT-23-3
2: SOT-23-3
Designation of Output Type;
A: Nch Open Drain (Output “L” at V
DD
=−V
DET
)
B: Nch Open Drain (Output “H” at V
DD
=−V
DET
)
C: CMOS (Output “L” at V
DD
=−V
DET
)
Designation of Packing or Taping Type ;
Ex.TO-92: TZ, SOT-89: T1, SOT-23-3, SOT-23-5, SC-82AB, SON1612-6: TR
prescribed as standard directions.
(Refer to Taping Specifications.) Antistatic bag for TO-92: C
Designation of Composition of pin plating
-F: Lead free plating (TO-92, SOT-89, SOT-23-3, SOT-23-5, SC-82AB, SON1612-6)
Contents
a
b
c
d
e
f
3
R3111x
PIN CONFIGURATIONS
TO-92
SOT-89
SOT-23-3
3
SOT-23-5
5
4
4
SC-82AB
3
SON1612-6
6
5
4
(mark side)
(mark side)
1
2
3
(mark side)
(mark side)
(mark side)
(mark side)
1
2
1
2
3
1
2
1
2
3
1
2
3
PIN DESCRIPTIONS
TO-92
Pin No.
1
2
3
Symbol
V
DD
GND
OUT
Pin No.
1
2
3
SOT-89
Symbol
OUT
V
DD
GND
Pin No.
1
2
3
SOT-23-3
Symbol
OUT
GND
V
DD
SOT-23-5
Pin No.
1
2
3
4
5
Symbol
OUT
V
DD
GND
NC
NC
Pin No.
1
2
3
4
SC-82AB
Symbol
OUT
V
DD
NC
GND
Pin No.
1
2
3
4
5
6
SON1612-6
Symbol
OUT
V
DD
GND
NC
V
DD
NC
4
R3111x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
OUT1
V
OUT2
I
OUT
Supply Voltage
Output Voltage (CMOS)
Output Voltage (Nch)
Output Current
Power Dissipation (TO-92)*
Power Dissipation (SOT-89)*
P
D
Power Dissipation (SOT-23-3)*
Power Dissipation (SOT-23-5)*
Power Dissipation (SC-82AB)*
Power Dissipation (SON1612-6)*
Topt
Tstg
Tsolder
Operating Temperature Range
Storage Temperature Range
Lead temperature (Soldering)
Item
Rating
12
V
SS
−0.3
to V
DD
+0.3
V
SS
−0.3
to 12
70
300
900
420
420
380
500
−40
to 85
−55
to 125
260°C, 10s
°C
°C
mW
Unit
V
V
V
mA
* ) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
5
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