R3117x SERIES
LOW VOLTAGE DETECTOR with SENSE pin
NO.EA-186-080617
OUTLINE
The R3117x 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.
The tolerance of the detector threshold is ±15mV (-V
DET
<
1.5V) or ±1.0% (1.5V< -V
DET
). Since the sense pin is
=
separated from the V
DD
pin of the IC, therefore, even if the sense pin voltage becomes to 0V, the output voltage
keeps its "L" level.
Two output types, Nch open drain type and CMOS type are available.
Three types of packages, SOT-23-5, SC-88A, and DFN(PLP)1010-4 are available.
FEATURES
∗
•
Supply Current ......................................................................Typ. 0.29µA (V
DD
=6.0V)
Consumption current through SENSE pin is not included.
•
Range of Operating Voltage..................................................1.0V to 6.0V (-40°C
<
T
opt
<
105°C)
=
=
•
Detector Threshold Range....................................................Stepwise setting with a step of 0.1V in the range
of 0.7V to 5.0V
•
Accuracy Detector Threshold................................................±1.0% (-V
DET
>
1.6V),
±15mV
(-V
DET
<1.6V)
=
•
Temperature-Drift Coefficient of Detector Threshold ............Typ.
±30ppm/°C
•
Output Types.........................................................................Nch Open Drain and CMOS
•
Packages ..............................................................................SOT-23-5, DFN(PLP)1010-4, SC-88A
∗
Topt=25°C, unless otherwise noted.
APPLICATIONS
•
•
•
•
•
•
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
1
R3117x
BLOCK DIAGRAMS
Nch Open Drain Output (R3117xxxxA)
SENSE
CMOS Output (R3117xxxxC)
SENSE
V
DD
D
OUT
V
DD
D
OUT
Vref
GND
Vref
GND
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;
R3117xxxxx-xx-x
←
Part Number
↑ ↑ ↑↑ ↑ ↑
a b a' c d e
Code
a, a'
Contents
Designation of Package Type;
DFN(PLP)1010-4 : R3117Kxx1x-xx-x
SOT-23-5
: R3117Nxx1x-xx-x
SC-88A
: R3117Qxx2x-xx-x
Setting Detector Threshold (-V
DET
);
Stepwise setting with a step of 0.1V in the range of 0.7V to 5.0V is possible.
Designation of Output Type;
A: Nch Open Drain
C: CMOS
Designation of Taping Type ;
TR (Refer to Taping Specifications; TR type is the standard direction.)
Designation of Composition of pin plating
-F : Lead free solder plating (SOT-23-5, SC-88A)
None: Au plating
(DFN(PLP)1010-4)
b
c
d
e
2
R3117x
PIN CONFIGURATIONS
•
DFN(PLP)1010-4*
1
Top View
4
3
Bottom View
3
4
1
2
2
1
•
SOT-23-5
5
4
•
SC-88A
5
4
(mark side)
(mark side)
1
2
3
1
2
3
PIN DESCRIPTIONS
•
DFN(PLP)1010-4*
1
Description
Output Pin
("L" at detection, "H" at released)
•
SOT-23-5
Description
Output Pin
("L" at detection, "H" at released)
Pin No. Symbol
1
2
3
4
D
OUT
Pin No. Symbol
1
2
3
4
5
D
OUT
V
DD
GND
NC
SENSE Voltage Detector Voltage Sense Pin
GND
V
DD
Ground Pin
Input Pin
Input Pin
Ground Pin
No Connection
*1) Tab in the
parts have GND level.
(They are connected to the back side of this IC.)
Do not connect to other wires or land patterns.
SENSE Voltage Detector Voltage Sense Pin
•
SC-88A
Description
Input Pin
No Connection*
2
Ground Pin
Output Pin
("L" at detection, "H" at released)
Pin No. Symbol
1
2
3
4
5
V
DD
NC
GND
SENSE Voltage Detector Voltage Sense Pin
D
OUT
*2) In terms of NC pin of SC-88A, connect it to the
GND or use it as open.
3
R3117x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
SENSE
V
OUT
I
OUT
P
D
Topt
Tstg
Supply Voltage
SENSE Pin Voltage
Output Voltage (Nch Open Drain Output)
Output Voltage (CMOS Output)
Output Current
Power Dissipation (SOT-23-5)*
Power Dissipation (DFN(PLP)1010-4)*
Power Dissipation (SC-88A)*
Operating Temperature Range
Storage Temperature Range
Item
Rating
7.0
7.0
V
SS
−0.3
to 7.0
V
SS
−0.3
to V
DD
+0.3
20
420
400
380
−40
to 105
−55
to 125
°C
°C
mW
Unit
V
V
V
mA
* ) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
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.
ELECTRICAL CHARACTERISTICS
•
R3117xxxxA/C
Item
0.7V
-V
DET
Detector Threshold
(T
opt
=25°C)
<
=
values indicate
−40°C
<
=
T
opt
<
=
105°C, unless otherwise noted.
Topt=25°C
Symbol
Conditions
Min.
Typ.
Max.
Unit
1.0V
<
V
DD
<
5.25V -V
DET
-15
-V
DET
+15
=
=
mV
-V
DET
<1.6V
-V
DET
+24
5.25V < V
DD
<
6.0V -V
DET
-11
=
1.0V
-V
DET
<
=
<
=
V
DD
1.6V
<
=
<
=
5.25V
6.0V
5.0V
5.25V < V
DD
<
=
-V
DET
×0.99
-V
DET
×0.9925
-V
DET
-26
-V
DET
×0.98
-V
DET
×0.9825
-V
DET
×0.04
0.31
0.29
-V
DET
×1.01
-V
DET
×1.016
-V
DET
+30
-V
DET
+39
-V
DET
×1.02
-V
DET
×1.026
-V
DET
×0.07
1.47
1.25
V
0.7V
-V
DET
Detector Threshold
(-40°C
<
T
opt
<
105°C)
=
=
<
=
-V
DET
<1.6V
1.0V
<
=
V
DD
<
=
5.25V -V
DET
-30
6.0V
5.25V < V
DD
1.0V
<
=
<
=
mV
V
DD
<
=
5.25V
6.0V
1.6V
<
=
-V
DET
<
=
5.0V
5.25V < V
DD
<
=
V
V
HYS
I
SS
Detector Threshold
Hysteresis
Supply Current*
1
V
DD
=1.0V to 6.0V
V
SENSE
=-V
DET
-0.1V
V
SENSE
=-V
DET
×1.1
V
µA
4
R3117x
Symbol
R
SENSE
V
DD
V
DDL
Item
-V
DET
< 1.5V
Sense Resistor
Operating Voltage
Minimum Operating
Voltage*
2
1.5V
4.7V
<
=
<
=
Conditions
-V
DET
< 4.7V
-V
DET
T
opt
T
opt
<
=
<
=
Min.
6
5
10
1.0
Typ.
Max.
25
40
40
6.0
0.50
0.55
Unit
MΩ
V
V
µA
-40°C
-40°C
<
=
<
=
105°C
105°C
T
opt
=25°C
V
DD
=0.6V, V
DS
=0.05V
-V
DET
< 1.1V
Nch
1.1V
1.6V
3.1V
Pch*
3
7
V
DD
=0.6V
V
DS
=0.5V
V
DD
=1.0V
V
DS
=0.5V
V
DD
=1.5V
V
DS
=0.5V
V
DD
=3.0V
V
DS
=0.5V
V
DD
=4.5V
V
DS
=2.1V
V
DD
=6.0V
V
DS
=2.1V
0.020
0.400
1.000
2.400
0.650
0.900
140
±30
80
40
40
80
<
=
<
=
<
=
-V
DET
< 1.6V
-V
DET
< 3.1V
-V
DET
I
OUT
Output Current
(Driver Output Pin)
mA
-V
DET
< 4.0V
4.0V
<
=
mA
nA
ppm
/°C
µs
µs
-V
DET
Nch Driver Leakage
Current*
4
Detector Threshold
∆-V
DET
/
Temperature
∆T
opt
Coefficient
I
LEAK
t
PHL
t
PLH
Detector Output Delay
Time*
5
Release Output Delay
Time*
5
V
DD
=6.0V, V
DS
=7.0V
-40°C
<
=
T
opt
<
=
105°C
-V
DET
< 1.5V
1.5V
4.5V
<
=
<
=
V
DD
=5V
V
DD
=5V
-V
DET
-V
DET
-V
DET
< 4.5V
All of unit are tested and specified under load conditions such that T
opt
=25°C except for Detector Threshold
Temperature Coefficient, Detector Output Delay Time and Release Output Delay Time.
*1: Consumption current through SENSE pin is not included.
*2: In case that the V
DD
pin and SENSE pin are connected and the value shows the minimum supply voltage (V
DD
) when the
output voltage at detector threshold can be maintained as 0.1V or less. (In case of Nch open drain type, pull-up resistor
is 470kΩ and pull-up voltage is set at 5V for testing.) If V
DD
is high enough, down to 0V is acceptable for SENSE pin.
*3: In case of CMOS type
*4: In case of Nch Open Drain type
*5: In the case of CMOS output type: Time interval from forcing pulsive 6.0V to -V
DET
-2.0V or 0V, or from forcing 0V to
-V
DET
+2.0V or 6.0V to SENSE pin, to when the output voltage will reach V
DD
/2.
In the case of Nch Open drain output type: Output pin is pulled up to 5V with 470kΩ and time interval from forcing 6.0V
to -V
DET
-2.0V or 0V, or forcing pulsive 0V to -V
DET
+2.0V or 6.0V to when the output voltage reaches up to 2.5V.
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.
5
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