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R3117N281A 데이터시트 PDF




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부품번호 R3117N281A 기능
기능 LOW VOLTAGE DETECTOR
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R3117N281A 데이터시트, 핀배열, 회로
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 (-VDET <= 1.5V) or ±1.0% (1.5V< -VDET). Since the sense pin is
separated from the VDD 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 (VDD=6.0V)
Consumption current through SENSE pin is not included.
Range of Operating Voltage..................................................1.0V to 6.0V (-40°C <= Topt <= 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% (-VDET >= 1.6V), ±15mV (-VDET<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




R3117N281A pdf, 반도체, 판매, 대치품
R3117x
ABSOLUTE MAXIMUM RATINGS
Symbol
Item
Rating
VDD
VSENSE
VOUT
IOUT
PD
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)*
7.0
7.0
VSS0.3 to 7.0
VSS0.3 to VDD+0.3
20
420
400
Power Dissipation (SC-88A)*
380
Topt
Tstg
Operating Temperature Range
Storage Temperature Range
40 to 105
55 to 125
* ) For Power Dissipation, please refer to PACKAGE INFORMATION to be described.
Unit
V
V
V
mA
mW
°C
°C
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
values indicate 40°C <= Topt <= 105°C, unless otherwise noted. Topt=25°C
Symbol
Item
Conditions
Min. Typ. Max. Unit
-VDET
Detector Threshold
(Topt=25°C)
0.7V <= -VDET<1.6V
1.0V <= VDD <= 5.25V
5.25V < VDD <= 6.0V
1.0V <= VDD <= 5.25V
1.6V <= -VDET <= 5.0V
5.25V < VDD <= 6.0V
-VDET-15
-VDET-11
-VDET
×0.99
-VDET
×0.9925
-VDET+15
-VDET+24
-VDET
×1.01
-VDET
×1.016
mV
V
-VDET
Detector Threshold
(-40°C <= Topt <= 105°C)
0.7V <= -VDET<1.6V
1.0V <= VDD <= 5.25V
5.25V < VDD <= 6.0V
1.0V <= VDD <= 5.25V
1.6V <= -VDET <= 5.0V
5.25V < VDD <= 6.0V
-VDET-30
-VDET-26
-VDET
×0.98
-VDET
×0.9825
-VDET+30
-VDET+39
-VDET
×1.02
-VDET
×1.026
mV
V
VHYS
Detector Threshold
Hysteresis
VDD=1.0V to 6.0V
-VDET
×0.04
-VDET
×0.07
V
ISS Supply Current*1
VSENSE=-VDET-0.1V
VSENSE=-VDET×1.1
0.31
0.29
1.47
1.25
µA
4

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R3117N281A 전자부품, 판매, 대치품
R3117x
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
R3117x07xA/C to R3117x50xA/C
are checked and guaranteed by design engineering at 40°CTopt105°C, unless otherwise noted.
Sense Resistor
RSENSE [M]
Min.
Typ.
Nch Driver Output
Current 1
IOUT1 [µA]
Cond.
Min.
Nch Driver Output
Current2
IOUT2 [mA]
Cond.
Min.
Pch Driver Output
Current
IOUT3 [mA]
Cond.
Min.
Detector Output
Delay Time
tPHL [µs]
Cond.
Typ.
Topt=25°C
Release Output
Delay Time
tPLH [µs]
Cond. Typ.
6 25
VDD=
0.6V
VDS=
0.5V
VDD=
1.0V
VDS=
0.5V
0.020
0.400
VDD=
5.0V
VSENSE=
6.0V
0V
Note)
80
VDD=
1.5V
VDS=
0.5V
1.000
VDD=
4.5V
VDS=
2.1V
0.650
VDD=
5.0V
VSENSE=
0V
-VDET
+2.0V
VDD=
0.6V
VDS=
0.05V
7
Note)
5
40
VDD=
5.0V
VSENSE=
6.0V
-VDET
-2.0V
40
VDD=
3.0V
VDS=
0.5V
2.400
VDD=
6.0V
VDS=
2.1V
Note)
0.900
VDD=
5.0V
VSENSE=
0V
6.0V
10 Note)
Note) 1. In the case of CMOS output type:
Time interval from forcing pulsive 6.0V to -VDET-2.0V or 0V, or from forcing 0V to -VDET+2.0V or 6.0V to
SENSE pin, to when the output voltage will reach VDD/2.
2. In the case of Nch Open drain output type:
Output pin is pulled up to 5V with 470kand time interval from forcing 6.0V to -VDET-2.0V or 0V, or forcing
pulsive 0V to -VDET+2.0V or 6.0V to when the output voltage reaches up to 2.5V.
40
80
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R3117N281A

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LOW VOLTAGE DETECTOR

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