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参数资料
| 型号： | R3117N221C-TR-F |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | ROHS COMPLIANT, SOT-23, 5 PIN |
| 文件页数： | 1/2页 |
| 文件大小： | 136K |
| 代理商： | R3117N221C-TR-F |
R3117x Series
Low Voltage Detector with SENSE pin
No.EK-186-091101
CMOS Voltage Detector
The R3117x Series are CMOS-based voltage detector ICs that can operate at low voltage. Since R3117x has a SENSE pin for
monitoring voltage separately from the power pin, its reset signal does not become unstable as long as power supply is secured and
the "L" can be maintained.
FEATURES
Supply Current (I
SS
) Typ. 0.29
μA (VSENSE=-VDET × 1.1)
Operating Voltage Range (V
DD
) 1.0V to 6.0V
Detector Threshold Range (-V
DET
) 0.7V to 5.0V (internally fixed)
Reset Signal "L"
Detector Threshold Accuracy ± 1%
Temp. coeff. of Detector Threshold Typ. ± 30ppm/°C
Output Type Nch. Open Drain and CMOS
Packages DFN(PLP)1010-4, SC-88A,
SOT-23-5
(The above shows specification at Topt=25
°C. Design assurance value at -40°C <
= Topt <
= 85°C is also available. For details, please refer to the datasheet.)
BLOCK DIAGRAMS
R3117xxxxA
R3117xxxxC
(Nch. open drain output)
(CMOS output)
DOUT
VDD
Vref
GND
SENSE
DOUT
VDD
Vref
GND
SENSE
SELECTION GUIDES
TIMING CHART
Package
Quantity per Reel
Part No.
DFN(PLP)1010-4
10,000 pcs
R3117K.xx.1
-TR
SC-88A
3,000 pcs
R3117Q.xx.2
-TR-F
SOT-23-5
3,000 pcs
R3117N.xx.1
-TR-F
.xx. : Specify the detector threshold within 0.7V (.07.) to 5.0V (.50.)
in 0.1V steps.
.
. : Select the output type from (.A.) Nch. open drain or (.C.) CMOS.
Detector Threshold
Hysteresis
tPLH
GND
VDDL
-VDET
+VDET
Detector Threshold
Released Voltage
Minimum Operating
Voltage
Pull-up Voltage
SENSE Pin Voltage
(VSENSE)
Output Voltage
(VOUT)
R3117xxxxA
tPLH
R3117xxxxC
tPHL
Supply Voltage
(VDD)
Detector Threshold
Hysteresis
Supply Voltage
(VDD)
PACKAGES
DFN(PLP)1010-4
SC-88A
SOT-23-5
Top View
Bottom View
2
1
3
4
1
2
4
3
13
54
2
13
54
2
1
DOUT
2
SENSE
3
GND
4
VDD
1VDD
2
NC
3
GND
4
SENSE
5DOUT
1DOUT
2VDD
3
GND
4
NC
5
SENSE
) The tab is substrate level (GND).
APPLICATIONS
Microcontroller and logic circuit reset
Battery checker
Window comparator
Wave shaping circuit
Battery back-up circuit
Power failure detector
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