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参数资料
| 型号： | R5106N341C-TR-F |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| 封装： | ROHS COMPLIANT, SOT-23, 6 PIN |
| 文件页数： | 1/2页 |
| 文件大小： | 262K |
| 代理商： | R5106N341C-TR-F |
R5106N Series
Compact Watchdog Timer Equipped with Inhibit Pin with VD
No.EK-169-091101
CMOS Microprocessor Supervisory
The R5106N Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single
chip. R5106N monitors the power system of devices equipped with microprocessors and prevents system runaway with a reset
signal when a malfunction occurs. The output delay time of the VD and watchdog timeout period/reset time can be adjusted high
accuracy with an external capacitor. The R5106N is equipped with the function that inhibits clock monitoring of the WDT (INH).
FEATURES
Supply Current (I
SS
) Typ. 11
μA (VDD=-VDET+0.5V,
Clock pulse input)
Operating Voltage (V
DD
) 0.9V to 6.0V
(VD Section)
Detector Threshold Range (-V
DET
) 1.5V to 5.5V (internally fixed)
Detector Threshold Accuracy ± 1%
Temp. coeff. of Detector Threshold Typ. ± 100ppm/°C
Output Delay Time (t
PLH
) Typ. 370ms (CT=0.1
μF)
Output Delay Time Accuracy ± 16% (-40°C <= Topt <= 105°C)
(WDT Section)
Watchdog Timeout Period (t
WD
) Typ. 310ms (CT=0.1
μF)
Reset Hold Time of WDT (t
WR
) Typ. 34ms (CT=0.1
μF)
Watchdog Timeout Period Accuracy ± 33% (-40°C <= Topt <= 105°C)
Able to stop watchdog timer Inhibit (INH) Pin
Package SOT-23-6
(The above shows specification at Topt=25°C. Design assurance value at -40°C <
= Topt <
= 105°C is also available. For details, please refer to the datasheet.)
BLOCK DIAGRAMS
TYPICAL APPLICATION
R5106Nxx1A
(Nch. open drain output)
VDD
GND
SCK
RESETB
CT
WATCHDOG
TIMER
CLOCK
DETECTOR
3
6
4
5
1
2 INH
SW1
SW2
Vref1
Vref2
R5106Nxx1C
(CMOS output)
RESETB
VDD
GND
SCK
CT
WATCHDOG
TIMER
CLOCK
DETECTOR
3
6
4
5
1
2 INH
SW1
SW2
Vref1
Vref2
R5106Nxx1A
Series
SW
VDD
RESET
I/O
R
CT
GND
VDD
INH
RESETB
SCK
CT
3
2
5
6
4
1
Microprocessor
Power Supply
SELECTION GUIDE
Package
Quantity per Reel
Part No.
SOT-23-6
3,000 pcs
R5106N.xx.1.
-TR-F
.xx. : Specify the detector threshold within the range 1.5V (.15.) to 5.5V (.55.)
in 0.1V steps.
. : Select the output type from (.A.) Nch. open drain or (.C.) CMOS.
PACKAGE (Top View)
TIMING CHART
SOT-23-6
6
5
4
1
2
3
1
SCK
Watchdog timer clock input pin
2
INH
Inhibit pin
3
VDD
Power supply pin
4
RESETB
Output pin for Reset "L" signal
5
GND
Ground pin
6
CT
Ext. Cap. pin for setting reset and
watchdog timeout period of WDT
and output delay time of VD
APPLICATION
Monitoring of the power system of devices equipped with microprocessors
-VDET
+VDET
VRESETB
VCT
VSCK
VDD
Vref2H
Vref2L
VINH
tPLH
tWDI
tWD
tPLH
tWR
tPHL
tPHL : Output delay time
tWDI : tWD/10 (SCK pulses input during this period are ignored.)
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