R3134x SERIES
LOW VOLTAGE DETECTOR WITH BUILT-IN DELAY CIRCUIT
NO.EA-209-130502
OUTLINE
R3134x Series are CMOS-based voltage detector ICs with built-in delay circuit, high detector threshold
accuracy, and ultra low supply current, which can operate at low voltage.
These ICs can be used as system reset generators, and each of these ICs consists of a voltage reference, a
comparator, resistors for setting voltage detector threshold, an output driver transistor, manual reset circuit, and
an output delay generator.
Detector threshold is fixed internally with high accuracy and requires no adjustment. When a supply voltage
crosses a setting detector threshold voltage from a high value to a lower value, this IC generates reset signal.
R3134x Series output "L" at its detect.
Since each of R3134x Series embeds an output delay generator, during a setting 240ms delay time, which is
fixed in the IC, this IC keeps the reset condition after they are released. Released conditions will be kept for the
delay time from when a supply voltage crosses a setting detector threshold voltage from a low value to a higher
value, or from when the manual reset signal is released.
Two output types, Nch open drain type and CMOS type, are available.
Since the packages for these ICs are DFN(PLP)1212-6 (Non-promotion), SOT-23-5, and SC-88A
(Non-promotion), high density mounting of the ICs on board is possible.
FEATURES
•
Supply Current ......................................................................Typ. 0.8μA (R3134x27Ex, V
DD
=3.0V)
•
Operating Voltage Range......................................................0.75V to 6.0V (T
opt
=25°C)
•
Detector Threshold Range....................................................1.0V to 5.0V (0.1V steps)
Further, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V, and
4.63V can be provided as standard.
•
Detector Threshold Accuracy................................................±1.8%
•
Temperature-Drift Coefficient of Detector Threshold ............Typ.
±100ppm/°C
•
Built-in Delay Time Circuit.....................................................Typ. 240ms
•
Output Delay Time Accuracy.................................................±15%
•
Output Types.........................................................................Nch Open Drain and CMOS
•
Packages ..............................................................................DFN(PLP)1212-6 (Non-promotion),
SC-88A (Non-promotion), SOT-23-5
APPLICATIONS
•
•
•
•
•
•
CPU and Logic Circuit Reset
Battery Checker
Window Comparator
Wave Shaping Circuit
Battery Back-up Circuit
Power Failure Detector
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R3134x
BLOCK DIAGRAMS
Nch Open Drain Output (R3134xxxEA)
CMOS Output (R3134xxxEC)
V
DD
Delay
Circuit
V
ref
GND
MR
V
DD
MR
D
OUT
Delay
Circuit
V
ref
GND
D
OUT
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.
Quantity per
Product Name
Package
Pb Free
Halogen Free
Reel
DFN(PLP)1212-6
5,000 pcs
Yes
Yes
R3134KxxE∗(y)-TR
(Non-promotion)
R3134QxxE∗(y)-TR-FE
R3134NxxE∗(y)-TR-FE
SC-88A (Non-promotion)
SOT-23-5
3,000 pcs
3,000 pcs
Yes
Yes
Yes
Yes
xx : The detector threshold can be designated in the range from 1.0V(10) to 5.0V(50) in 0.1V steps.
y: If the detector threshold includes the 3rd digit, indicate the digit of 0.01V.
(Example) If the detector threshold is 2.63V, R3134x26E∗3-TR-x
∗
: Designation of Output Type
(A) Nch Open Drain
(C) CMOS
The products scheduled to be discontinued : "Non-promotion"
These products will be discontinued in the future. We advise you to select other products.
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R3134x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
OUT
V
MR
I
OUT
Supply Voltage
Output Voltage (Nch Open Drain Output)
Output Voltage (CMOS Output)
Input Voltage
Output Current
Power Dissipation (DFN(PLP)1212-6) (Non-promotion)
P
D
Power Dissipation (SC-88A) (Non-promotion)
Power Dissipation (SOT-23-5)
T
opt
T
stg
Storage Temperature Range
∗
∗
∗
Item
Rating
6.5
V
SS
−0.3
to 6.5
V
SS
−0.3
to V
DD
+0.3
V
SS
−0.3
to V
DD
+0.3
20
400
380
420
−40
to 85
−55
to 125
Unit
V
V
V
mA
mW
°C
°C
Operating Temperature Range
∗)
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.
4
R3134x
ELECTRICAL CHARACTERISTICS
•
R3134x
The specification in
is checked and guaranteed by design engineering at
−40°C ≤
T
opt
≤
85°C.
Topt=25°C
Symbol
V
DET
I
SS1
I
SS2
Item
Detector Threshold
Supply Current1
Supply Current2
Conditions
Min.
V
DET
×0.982
Typ.
Max.
V
DET
×1.018
2.0
2.0
3.6
3.0
2.5
Unit
V
μA
μA
V
DD
=V
DET
−0.1V,
I
OUT
=0A
V
DD
=V
DET
+0.1V,
I
OUT
=0A
V
DET
< 1.6V
V
DD
=6V,
I
OUT
=0A
T
opt
=25°C
−40°C ≤
T
opt
≤
85°C
I
SS3
Supply Current3
1.6
≤
V
DET
<
2.7V
2.7V
≤
V
DET
μA
V
DD
V
OH
V
OL
V
IH
V
IL
R
MR
ΔV
DET
/
ΔT
opt
t
reset
t
delay
Operating Voltage
"H" Output Voltage
"L" Output Voltage
MR pin "H" Input Voltage
MR pin "L" Input Voltage
MR pin pull-up Resistance
Detector Threshold
Temperature Coefficient
Output Delay Time for
∗
detect
Output Delay Time for
release
0.75
0.85
Refer to the following table
Refer to the following table
6.00
6.00
V
V
DD
≥
V
DET
+0.1V
V
DD
≥
V
DET
+0.1V
T
opt
=25°C
−40°C ≤
T
opt
≤
85°C
V
DD
=V
DET
→
V
DET
−0.1V
V
DD
=0.8V→
V
DET
+1.0
0.75×V
DD
0.2×V
DD
0.5
1.0
±100
15
204
240
276
4.0
V
V
MΩ
ppm
/°C
μs
ms
∗)
Guaranteed by design, not mass production tested.
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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