LOW VOLTAGE DETECTOR
R3113D SERIES
OUTLINE
NO. EA-115-0506
The R3113D 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.
Two output types, Nch open drain type and CMOS type are available.
Since the package is ultra-small SON1408-3 (MFPAK), high density mounting on board is possible .
FEATURES
•
Ultra-low Supply Current
.................................................................
Typ. 1.4µA (V
DET
>1.5V: V
DD
=V
DET
+1.0V)
•
Wide Range of Operating Voltage
...............................................
0.6V to 6.0V (V
DET
=3.0V,
Topt=25°C)
•
Detector Threshold
............................................................................
Stepwise setting with a step of 0.1V in the range
from 1.2V to 4.5V is possible.
•
High Accuracy Detector Threshold
..............................................
±2.0%
•
Low Temperature-Drift Coefficient of Detector Threshold
...
Typ.
±100ppm/°C
•
Two Output Types
..............................................................................
Nch Open Drain and CMOS
•
Ultra-small Package
..........................................................................
SON1408-3
APPLICATIONS
•
•
•
•
•
•
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
1
R3113D
BLOCK DIAGRAMS
R3113Dxx1A
V
DD
OUT
R3113Dxx1C
V
DD
OUT
Vref
GND
Vref
GND
TIMING CHART
Release Voltage +V
DET
Supply Voltage Detector Threshold -V
DET
(V
DD
)
Minimum Operating Voltage
V
SS
Detector Threshold
Hysteresis
Output Voltage
(OUT)
V
SS
t
PLH
2
R3113D
DEFINITION OF OUTPUT DELAY TIME
Output Delay Time t
PLH
is defined as follows:
1. In the case of Nch Open Drain Output:
Under the condition of the output pin (OUT) is pulled up through a resistor of 470kΩ to 5V, the time interval
between the rising edge of V
DD
pulse from 0.85V to (+V
DET
)+ 1.0V and becoming of the output voltage to 2.5V.
2. In the case of CMOS Output:
The time interval between the rising edge of V
DD
pulse from 0.85V to (+V
DET
)+ 1.0V and becoming of the
output voltage to (V
DD
/
2) V.
+V
DET
+ 1.0V
Input Voltage
(V
DD
)
0.85V
GND
5.0V
Output Voltage
2.5V
+V
DET
+ 1.0V
Input Voltage
(V
DD
)
0.85V
GND
+V
DET
+1.0V
Output Voltage
+V
DET
+1.0V
2
GND
t
PHL
t
PLH
GND
t
PHL
t
PLH
Nch Open Drain Output
CMOS Output
SELECTION GUIDE
The detector threshold, the output type and the taping type of R3113 Series can be designated at the users’
request by specifying the part number as follows;
R3113xxx1x-xx
↑ ↑
a b
Code
a
b
c
↑ ↑
c d
←
Part Number
Contents
Designation of Package Type;
SON1408-3
Setting Detector Threshold (−V
DET
);
Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V is possible.
Designation of Output Type;
A: Nch Open Drain
C: CMOS
Designation of Packing or Taping Type;
Ex.TR prescribed as standard directions.
(Refer to Taping Specifications.) Antistatic bag for samples: C
d
3
R3113D
PIN CONFIGURATION
SON1408-3
3
(mark side)
1
2
PIN DESCRIPTION
•
R3113D
Pin No.
1
2
3
Symbol
OUT
V
DD
GND
Output Pin
Input Pin
Ground Pin
Description
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
OUT1
V
OUT2
I
OUT
P
D
Topt
Tstg
Tsolder
Supply Voltage
Output Voltage (CMOS)
Output Voltage (Nch)
Output Current
Power Dissipation
∗
Note1
Operating Temperature Range
Storage Temperature Range
Lead temperature (Soldering)
Item
Rating
6.5
V
SS
−0.3
to V
DD
+0.3
V
SS
−0.3
to 6.5
20
250
−40
to 85
−55
to 125
260°C, 10s
Unit
V
V
V
mA
mW
°C
°C
∗Note
1: Applied to SON1408-3 at mounted on board
P
D
depends on conditions of mounting on board.
This specification is based on the measurement at the condition below:
∗Measurement
Conditions
Environment: Mounted on board (Wind velocity 0m/s)
Board Material: FR-4 (2-layer)
Board dimensions: 40mm
×
40mm
×
t1.6mm
Copper Area: 50%(Both Sides)
Tab pin (Pin 3) land pattern width is same as the lead, connected to the GND plane.
4
R3113D
•
ELECTRICAL CHARACTERISTICS
R3113D121A/C
Symbol
−V
DET
V
HYS
I
SS
V
DDH
V
DDL
Item
Detector Threshold
Detector Threshold Hysteresis
Supply Current
Maximum Operating Voltage
Minimum Operating Voltage
∗
Note1
Topt=25°C
−40°C
<
Topt
<
85°C
=
=
Nch
V
DS
=0.05V,
V
DD
=0.85V
V
DS
=0.50V,
V
DD
=1.10V
Pch
V
DS
=−2.1V,
V
DD
=4.5V
−40°C
<
=
<
=
Topt
=
25°C
Conditions
Min.
1.176
0.036
Typ.
1.200
0.060
0.8
1.1
0.65
Max.
1.224
0.084
2.0
2.7
6
0.85
0.95
Unit
V
V
µA
V
V
V
DD
=
(−V
DET
)−0.1V
(−V
DET
)+1.0V
I
OUT
Output Current
(Driver Output Pin)
Output Delay Time
∗
Note2
Detector Threshold
Temperature Coefficient
0.2
1.0
2.0
0.3
2.2
5.0
100
mA
mA
µs
ppm/°C
Topt
=
25°C
t
PLH
∆−V
DET
/∆T
Topt
85°C
±100
•
R3113D181A/C
Symbol
−V
DET
V
HYS
I
SS
V
DDH
V
DDL
Item
Detector Threshold
Detector Threshold Hysteresis
Supply Current
Maximum Operating Voltage
Minimum Operating Voltage
∗
Note1
Topt=25°C
−40°C
<
=
Conditions
Min.
1.764
0.054
Typ.
1.800
0.090
1.3
1.4
0.45
Max.
1.836
0.126
3.3
3.6
6
0.70
0.80
Unit
V
V
µA
V
V
V
DD
=
(−V
DET
)−0.1V
(−V
DET
)+1.0V
Topt
<
=
85°C
0.05
2.00
2.0
0.13
5.00
5.0
I
OUT
Output Current
(Driver Output Pin)
Output Delay Time
∗
Note2
Detector Threshold
Temperature Coefficient
Nch
V
DS
=0.05V,
V
DD
=0.70V
V
DS
=0.50V,
V
DD
=1.50V
Pch
V
DS
=−2.1V,
V
DD
=4.5V
−40°C
<
=
<
=
mA
mA
100
µs
ppm/°C
t
PLH
∆−V
DET
/∆T
Topt
85°C
±100
5
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