RICOH R3117xxx1, R3117xxx2 Technical data
R3117xxx1/2 SERIES
LOW VOLTAGE DETECTOR with SENSE pin
NO.EA-186-111104
Notice
If the SENSE pin voltage of R3117xxx1A/C and R3117Qxx2A/C make the gradual curve by rasing 0.5V/ms or less, it may cause noise when the output voltage is switched from low to high.Please use R3117xxx3A/C and R3117Qxx4A/C Series for new designs instead of these products to avoid the above problem.
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
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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) |
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Consumption current through SENSE pin is not included. |
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Operating Voltage Range...................................................... |
1.0V to 6.0V |
(-40°C =< Topt =< 105°C) |
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Detector Threshold Range.................................................... |
0.7V to 5.0V |
(0.1V steps) |
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(For other voltages, please refer to MARK INFORMATIONS.) |
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• Accuracy Detector Threshold................................................ |
±1.0% (-VDET => 1.6V), ±15mV (-VDET<1.6V) |
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Temperature-Drift Coefficient of Detector Threshold ............ |
Typ. ±30ppm/°C |
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Output Types......................................................................... |
Nch Open Drain and CMOS |
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Packages .............................................................................. |
DFN(PLP)1010-4, SC-88A, SOT-23-5 |
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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
R3117xxx1/2
BLOCK DIAGRAMS
Nch Open Drain Output (R3117xxxxA) |
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CMOS Output (R3117xxxxC) |
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SENSE |
SENSE |
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VDD |
DOUT |
VDD |
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DOUT |
Vref |
Vref |
GND |
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.
Product Name |
Package |
Quantity per Reel |
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Pb Free |
Halogen Free |
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R3117Kxx1 -TR |
DFN(PLP)1010-4 |
10,000 pcs |
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Yes |
Yes |
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R3117Qxx2 -TR-FE |
SC-88A |
3,000 pcs |
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Yes |
Yes |
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R3117Nxx1 -TR-FE |
SOT-23-5 |
3,000 pcs |
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Yes |
Yes |
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xx: The detector threshold can be designated in the range from 0.7V(07) to 5.0V(50) in 0.1V steps. (For other voltages, please refer to MARK INFORMATIONS.)
: Designation of Output Type
(A)Nch Open Drain
(C) CMOS
2
R3117xxx1/2
PIN CONFIGURATIONS
• DFN PLP 1010-4*1
Top View |
Bottom View |
4 |
3 |
3 |
4 |
1 |
2 |
2 |
1 |
• SC-88A
5 4
(mark side)
1 |
2 |
3 |
• SOT-23-5
5 4
(mark side)
1 2 3
PIN DESCRIPTIONS
• DFN(PLP)1010-4*1
Pin No. |
Symbol |
Description |
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1 |
DOUT |
Output Pin ("L" at detection) |
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SENSE |
Voltage Detector Voltage Sense Pin |
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GND |
Ground Pin |
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VDD |
Input Pin |
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1) Tab is GND level. (They are connected to the reverse side of this IC.)
The tab is better to be connected to the GND, but leaving it open is also acceptable.
• SC-88A
Pin No. |
Symbol |
Description |
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1 |
VDD |
Input Pin |
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No Connection*2 |
2 |
NC |
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3 |
GND |
Ground Pin |
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4 |
SENSE |
Voltage Detector Voltage Sense Pin |
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5 |
DOUT |
Output Pin ("L" at detection) |
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2) In terms of NC pin of SC-88A, connect it to the GND or use it as open.
• SOT-23-5
Pin No. |
Symbol |
Description |
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1 |
DOUT |
Output Pin ("L" at detection) |
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VDD |
Input Pin |
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GND |
Ground Pin |
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4 |
NC |
No Connection |
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5 |
SENSE |
Voltage Detector Voltage Sense Pin |
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3
R3117xxx1/2
ABSOLUTE MAXIMUM RATINGS
Symbol |
Item |
Rating |
Unit |
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VDD |
Supply Voltage |
7.0 |
V |
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VSENSE |
SENSE Pin Voltage |
7.0 |
V |
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VOUT |
Output Voltage (Nch Open Drain Output) |
VSS−0.3 to 7.0 |
V |
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Output Voltage (CMOS Output) |
VSS−0.3 to VDD+0.3 |
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IOUT |
Output Current |
20 |
mA |
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Power Dissipation (DFN(PLP)1010-4)* |
400 |
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PD |
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Power Dissipation (SC-88A)* |
380 |
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Power Dissipation (SOT-23-5)* |
420 |
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Topt |
Operating Temperature Range |
−40 to 105 |
°C |
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Tstg |
Storage Temperature Range |
−55 to 125 |
°C |
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* ) 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.
ELECTRICAL CHARACTERISTICS
• R3117xxxxA/C |
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values indicate −40°C =< Topt =< 105°C, unless otherwise noted. Topt=25°C |
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Symbol |
Item |
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Conditions |
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Min. |
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Typ. |
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Max. |
Unit |
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0.7V |
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-VDET<1.6V |
1.0V =< VDD =< 5.25V |
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-VDET-15 |
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-VDET+15 |
mV |
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Detector Threshold |
5.25V < VDD =< 6.0V |
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-VDET-11 |
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-VDET+24 |
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-VDET |
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1.0V =< VDD =< 5.25V |
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-VDET |
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-VDET |
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(Topt=25°C) |
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1.6V =< -VDET =< 5.0V |
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×0.99 |
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×1.01 |
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V |
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5.25V < VDD =< 6.0V |
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-VDET |
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-VDET |
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×0.9925 |
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×1.016 |
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1.0V =< VDD =< 5.25V |
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0.7V |
=< |
-VDET<1.6V |
-VDET-30 |
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-VDET+30 |
mV |
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5.25V < VDD =< 6.0V |
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Detector Threshold |
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-VDET-26 |
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-VDET+39 |
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-VDET |
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-VDET |
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-VDET |
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(-40°C =< Topt =< 105°C) |
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1.0V =< VDD =< 5.25V |
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1.6V =< -VDET =< 5.0V |
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×0.98 |
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×1.02 |
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V |
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5.25V < VDD =< 6.0V |
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-VDET |
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-VDET |
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×0.9825 |
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×1.026 |
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Detector Threshold |
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VHYS |
VDD=1.0V to 6.0V |
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-VDET |
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-VDET |
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V |
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Hysteresis |
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×0.04 |
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×0.07 |
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VSENSE=-VDET-0.1V |
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0.31 |
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ISS |
Supply Current*1 |
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1.47 |
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μA |
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VSENSE=-VDET×1.1 |
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0.29 |
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1.25 |
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4
R3117xxx1/2
Symbol |
Item |
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Conditions |
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Min. |
Typ. |
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Max. |
Unit |
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-VDET < 1.5V |
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6 |
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25 |
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RSENSE |
Sense Resistor |
1.5V =< -VDET < 4.7V |
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5 |
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40 |
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MΩ |
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4.7V =< -VDET |
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10 |
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40 |
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VDD |
Operating Voltage |
-40°C =< Topt =< 105°C |
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V |
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1.0 |
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6.0 |
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Minimum Operating |
T |
opt |
° |
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0.50 |
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VDDL |
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=25 C |
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V |
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Voltage*2 |
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< |
< |
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0.55 |
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-40°C = |
Topt = 105°C |
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VDD=0.6V, VDS=0.05V |
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7 |
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μA |
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-VDET < 1.1V |
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VDD=0.6V |
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0.020 |
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VDS=0.5V |
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1.1V |
=< -VDET < 1.6V |
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VDD=1.0V |
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Nch |
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0.400 |
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VDS=0.5V |
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mA |
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Output Current |
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1.6V |
=< -VDET < 3.1V |
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VDD=1.5V |
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IOUT |
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1.000 |
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VDS=0.5V |
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(Driver Output Pin) |
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3.1V |
=< -VDET |
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VDD=3.0V |
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2.400 |
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VDS=0.5V |
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-VDET < 4.0V |
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VDD=4.5V |
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0.650 |
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Pch*3 |
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VDS=2.1V |
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mA |
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4.0V |
=< -VDET |
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VDD=6.0V |
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0.900 |
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VDS=2.1V |
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ILEAK |
Nch Driver Leakage |
VDD=6.0V, VDS=7.0V |
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nA |
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140 |
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Current*4 |
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-VDET/ |
Detector Threshold |
-40°C =< Topt =< 105°C |
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±30 |
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Topt |
Temperature |
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/°C |
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Coefficient |
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tPHL |
Detector Output Delay |
VDD=5V |
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-VDET < 1.5V |
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80 |
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Time*5 |
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1.5V |
< |
-VDET |
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40 |
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tPLH |
Release Output Delay |
VDD=5V |
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-VDET < 4.5V |
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4.5V |
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-VDET |
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All of unit are tested and specified under load conditions such that Topt=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 VDD pin and SENSE pin are connected and the value shows the minimum supply voltage (VDD) 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 VDD 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 -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.
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 -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.
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
R3117xxx1/2
ELECTRICAL CHARACTERISTICS BY DETECTOR THRESHOLD
• R3117x07xA/C to R3117x50xA/C
Bold values are checked and guaranteed by design engineering at −40°C <= Topt <= 105°C, unless otherwise noted.
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Topt=25°C |
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Detector Threshold |
Detector Threshold |
Detector Threshold |
Detector Threshold |
Detector Threshold |
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Hysteresis |
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1.0V = VDD = 5.25V |
1.0V = VDD = 5.25V |
5.25V < VDD = 6.0V |
5.25V < VDD = 6.0V |
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Number |
-VDET [V] |
-VDET [V] |
-VDET [V] |
-VDET [V] |
VHYS [V] |
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Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
R3117x07xA/C |
0.6850 |
0.7150 |
0.6700 |
0.7300 |
0.6890 |
0.7240 |
0.6740 |
0.7390 |
0.028 |
0.049 |
R3117x08xA/C |
0.7850 |
0.8150 |
0.7700 |
0.8300 |
0.7890 |
0.8240 |
0.7740 |
0.8390 |
0.032 |
0.056 |
R3117x09xA/C |
0.8850 |
0.9150 |
0.8700 |
0.9300 |
0.8890 |
0.9240 |
0.8740 |
0.9390 |
0.036 |
0.063 |
R3117x10xA/C |
0.9850 |
1.0150 |
0.9700 |
1.0300 |
0.9890 |
1.0240 |
0.9740 |
1.0390 |
0.040 |
0.070 |
R3117x11xA/C |
1.0850 |
1.1150 |
1.0700 |
1.1300 |
1.0890 |
1.1240 |
1.0740 |
1.1390 |
0.044 |
0.077 |
R3117x12xA/C |
1.1850 |
1.2150 |
1.1700 |
1.2300 |
1.1890 |
1.2240 |
1.1740 |
1.2390 |
0.048 |
0.084 |
R3117x13xA/C |
1.2850 |
1.3150 |
1.2700 |
1.3300 |
1.2890 |
1.3240 |
1.2740 |
1.3390 |
0.052 |
0.091 |
R3117x14xA/C |
1.3850 |
1.4150 |
1.3700 |
1.4300 |
1.3890 |
1.4240 |
1.3740 |
1.4390 |
0.056 |
0.098 |
R3117x15xA/C |
1.4850 |
1.5150 |
1.4700 |
1.5300 |
1.4890 |
1.5240 |
1.4740 |
1.5390 |
0.060 |
0.105 |
R3117x16xA/C |
1.5840 |
1.6160 |
1.5680 |
1.6320 |
1.5880 |
1.6256 |
1.5720 |
1.6416 |
0.064 |
0.112 |
R3117x17xA/C |
1.6830 |
1.7170 |
1.6660 |
1.7340 |
1.6872 |
1.7272 |
1.6702 |
1.7442 |
0.068 |
0.119 |
R3117x18xA/C |
1.7820 |
1.8180 |
1.7640 |
1.8360 |
1.7865 |
1.8288 |
1.7685 |
1.8468 |
0.072 |
0.126 |
R3117x19xA/C |
1.8810 |
1.9190 |
1.8620 |
1.9380 |
1.8857 |
1.9304 |
1.8667 |
1.9494 |
0.076 |
0.133 |
R3117x20xA/C |
1.9800 |
2.0200 |
1.9600 |
2.0400 |
1.9850 |
2.0320 |
1.9650 |
2.0520 |
0.080 |
0.140 |
R3117x21xA/C |
2.0790 |
2.1210 |
2.0580 |
2.1420 |
2.0842 |
2.1336 |
2.0632 |
2.1546 |
0.084 |
0.147 |
R3117x22xA/C |
2.1780 |
2.2220 |
2.1560 |
2.2440 |
2.1835 |
2.2352 |
2.1615 |
2.2572 |
0.088 |
0.154 |
R3117x23xA/C |
2.2770 |
2.3230 |
2.2540 |
2.3460 |
2.2827 |
2.3368 |
2.2597 |
2.3598 |
0.092 |
0.161 |
R3117x24xA/C |
2.3760 |
2.4240 |
2.3520 |
2.4480 |
2.3820 |
2.4384 |
2.3580 |
2.4624 |
0.096 |
0.168 |
R3117x25xA/C |
2.4750 |
2.5250 |
2.4500 |
2.5500 |
2.4812 |
2.5400 |
2.4562 |
2.5650 |
0.100 |
0.175 |
R3117x26xA/C |
2.5740 |
2.6260 |
2.5480 |
2.6520 |
2.5805 |
2.6416 |
2.5545 |
2.6676 |
0.104 |
0.182 |
R3117x27xA/C |
2.6730 |
2.7270 |
2.6460 |
2.7540 |
2.6797 |
2.7432 |
2.6527 |
2.7702 |
0.108 |
0.189 |
R3117x28xA/C |
2.7720 |
2.8280 |
2.7440 |
2.8560 |
2.7790 |
2.8448 |
2.7510 |
2.8728 |
0.112 |
0.196 |
R3117x29xA/C |
2.8710 |
2.9290 |
2.8420 |
2.9580 |
2.8782 |
2.9464 |
2.8492 |
2.9754 |
0.116 |
0.203 |
R3117x30xA/C |
2.9700 |
3.0300 |
2.9400 |
3.0600 |
2.9775 |
3.0480 |
2.9475 |
3.0780 |
0.120 |
0.210 |
R3117x31xA/C |
3.0690 |
3.1310 |
3.0380 |
3.1620 |
3.0767 |
3.1496 |
3.0457 |
3.1806 |
0.124 |
0.217 |
R3117x32xA/C |
3.1680 |
3.2320 |
3.1360 |
3.2640 |
3.1760 |
3.2512 |
3.1440 |
3.2832 |
0.128 |
0.224 |
R3117x33xA/C |
3.2670 |
3.3330 |
3.2340 |
3.3660 |
3.2752 |
3.3528 |
3.2422 |
3.3858 |
0.132 |
0.231 |
R3117x34xA/C |
3.3660 |
3.4340 |
3.3320 |
3.4680 |
3.3745 |
3.4544 |
3.3405 |
3.4884 |
0.136 |
0.238 |
R3117x35xA/C |
3.4650 |
3.5350 |
3.4300 |
3.5700 |
3.4737 |
3.5560 |
3.4387 |
3.5910 |
0.140 |
0.245 |
R3117x36xA/C |
3.5640 |
3.6360 |
3.5280 |
3.6720 |
3.5730 |
3.6576 |
3.5370 |
3.6936 |
0.144 |
0.252 |
R3117x37xA/C |
3.6630 |
3.7370 |
3.6260 |
3.7740 |
3.6722 |
3.7592 |
3.6352 |
3.7962 |
0.148 |
0.259 |
R3117x38xA/C |
3.7620 |
3.8380 |
3.7240 |
3.8760 |
3.7715 |
3.8608 |
3.7335 |
3.8988 |
0.152 |
0.266 |
R3117x39xA/C |
3.8610 |
3.9390 |
3.8220 |
3.9780 |
3.8707 |
3.9624 |
3.8317 |
4.0014 |
0.156 |
0.273 |
R3117x40xA/C |
3.9600 |
4.0400 |
3.9200 |
4.0800 |
3.9700 |
4.0640 |
3.9300 |
4.1040 |
0.160 |
0.280 |
R3117x41xA/C |
4.0590 |
4.1410 |
4.0180 |
4.1820 |
4.0692 |
4.1656 |
4.0282 |
4.2066 |
0.164 |
0.287 |
R3117x42xA/C |
4.1580 |
4.2420 |
4.1160 |
4.2840 |
4.1685 |
4.2672 |
4.1265 |
4.3092 |
0.168 |
0.294 |
R3117x43xA/C |
4.2570 |
4.3430 |
4.2140 |
4.3860 |
4.2677 |
4.3688 |
4.2247 |
4.4118 |
0.172 |
0.301 |
R3117x44xA/C |
4.3560 |
4.4440 |
4.3120 |
4.4880 |
4.3670 |
4.4704 |
4.3230 |
4.5144 |
0.176 |
0.308 |
R3117x45xA/C |
4.4550 |
4.5450 |
4.4100 |
4.5900 |
4.4662 |
4.5720 |
4.4212 |
4.6170 |
0.180 |
0.315 |
R3117x46xA/C |
4.5540 |
4.6460 |
4.5080 |
4.6920 |
4.5655 |
4.6736 |
4.5195 |
4.7196 |
0.184 |
0.322 |
R3117x47xA/C |
4.6530 |
4.7470 |
4.6060 |
4.7940 |
4.6647 |
4.7752 |
4.6177 |
4.8222 |
0.188 |
0.329 |
R3117x48xA/C |
4.7520 |
4.8480 |
4.7040 |
4.8960 |
4.7640 |
4.8768 |
4.7160 |
4.9248 |
0.192 |
0.336 |
R3117x49xA/C |
4.8510 |
4.9490 |
4.8020 |
4.9980 |
4.8632 |
4.9784 |
4.8142 |
5.0274 |
0.196 |
0.343 |
R3117x50xA/C |
4.9500 |
5.0500 |
4.9000 |
5.1000 |
4.9625 |
5.0800 |
4.9125 |
5.1300 |
0.200 |
0.350 |
6
R3117xxx1/2
Sense Resistor |
Nch Driver Output |
Nch Driver Output |
Pch Driver Output |
Detector Output |
Release Output |
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Current 1 |
Current2 |
Current |
Delay Time |
Delay Time |
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RSENSE [MΩ] |
IOUT1 [μA] |
IOUT2 [mA] |
IOUT3 [mA] |
tPHL [µs] |
tPLH [µs] |
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Min. |
Typ. |
Cond. |
Min. |
Cond. |
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Cond. |
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Min. |
Cond. |
Typ. |
Cond. |
Typ. |
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VDD= |
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0.6V |
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0.020 |
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VDS= |
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VDD= |
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0.5V |
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5.0V |
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VSENSE= |
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VDD= |
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VDD= |
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2.1V |
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0.5V |
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+2.0V |
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VDD= |
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0.6V |
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VDS= |
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0.05V |
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VDD= |
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5.0V |
40 |
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6.0V |
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-VDET |
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-2.0V |
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VDD= |
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3.0V |
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2.400 |
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5.0V |
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0V |
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6.0V |
80 |
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Note) |
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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 470kΩ and 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.
7
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