R5106N161A-TR-F [RICOH]
Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, ROHS COMPLIANT, SOT-23, 6 PIN;
| 型号： | R5106N161A-TR-F |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO6, ROHS COMPLIANT, SOT-23, 6 PIN 光电二极管 |
| 文件： | 总2页 (文件大小：262K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
R5106N Series
Compact Watchdog Timer Equipped with Inhibit Pin with VD
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 (ISS) ························Typ. 11μA (VDD=-VDET+0.5V,
Clock pulse input)
• Operating Voltage (VDD)··················0.9V to 6.0V
(VD Section)
• Output Delay Time (tPLH)·················Typ. 370ms (CT=0.1μF)
<
• Output Delay Time Accuracy··········± 16% (-40°C Topt 105°C)
=
=
(WDT Section)
• Watchdog Timeout Period (tWD)······Typ. 310ms (CT=0.1μF)
•
•
•
Detector Threshold Range (-VDET
Detector Threshold Accuracy ··········± 1%
Temp. coeff. of Detector Threshold ···Typ. ± 100ppm/°C
)
···1.5V to 5.5V (internally fixed)
• Reset Hold Time of WDT (tWR) ·······Typ. 34ms (CT=0.1μF)
<
•
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)
R5106Nxx1C
(CMOS output)
Power Supply
Microprocessor
VDD
3
3
6
VDD
VDD
SW1
SW1
SW2
R
3
2
RESETB
R5106Nxx1A
4
1
VDD
RESET
I/O
Vref2
Vref1
Vref2
Vref1
5
1
5
1
GND
SCK
GND
SCK
6
4
CT
CT
Series
SCK
SW2
WATCHDOG
TIMER
CLOCK
DETECTOR
WATCHDOG
TIMER
CLOCK
DETECTOR
SW
INH
CT
6
GND
5
CT
RESETB
RESETB
4
INH
INH
2
2
SELECTION GUIDE
.
xx.
:
Specify the detector threshold within the range 1.5V (
in 0.1V steps.
.
15
.
) to 5.5V (
.
55
.
)
Package
Quantity per Reel
Part No.
SOT-23-6
3,000 pcs
R5106N
.
xx.
1.
∗-TR-F
: Select the output type from (
.
A
.
) Nch. open drain or (
.
C
.
) CMOS.
.
∗
PACKAGE (Top View)
TIMING CHART
SOT-23-6
6
5
4
+VDET
DD
V
-VDET
VINH
1
2
3
tWD
tPLH
tWDI
V
V
ref2H
1
2
3
4
5
SCK
INH
VDD
Watchdog timer clock input pin
Inhibit pin
Power supply pin
V
CT
ref2L
RESETB Output pin for Reset "L" signal
GND
tPHL
Ground pin
VSCK
Ext. Cap. pin for setting reset and
watchdog timeout period of WDT
and output delay time of VD
6
CT
tPLH
tWR
VRESETB
APPLICATION
∗tPHL : Output delay time
∗tWDI : tWD/10 (SCK pulses input during this period are ignored.)
• Monitoring of the power system of devices equipped with microprocessors
No.EK-169-091101
CMOS Microprocessor Supervisory
1.The products and the product specifications described in this document are subject to change or
discontinuation of production without notice for reasons such as improvement. Therefore, before
deciding to use the products, please refer to Ricoh sales representatives for the latest
information thereon.
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without prior written consent of Ricoh.
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exporting or otherwise taking out of your country the products or the technical information
described herein.
4.The technical information described in this document shows typical characteristics of and
example application circuits for the products. The release of such information is not to be
construed as a warranty of or a grant of license under Ricoh's or any third party's intellectual
property rights or any other rights.
5.The products listed in this document are intended and designed for use as general electronic
components in standard applications (office equipment, telecommunication equipment,
measuring instruments, consumer electronic products, amusement equipment etc.). Those
customers intending to use a product in an application requiring extreme quality and reliability,
for example, in a highly specific application where the failure or misoperation of the product
could result in human injury or death (aircraft, spacevehicle, nuclear reactor control system,
traffic control system, automotive and transportation equipment, combustion equipment, safety
devices, life support system etc.) should first contact us.
6.We are making our continuous effort to improve the quality and reliability of our products, but
semiconductor products are likely to fail with certain probability. In order to prevent any injury to
persons or damages to property resulting from such failure, customers should be careful enough
to incorporate safety measures in their design, such as redundancy feature, firecontainment
feature and fail-safe feature. We do not assume any liability or responsibility for any loss or
damage arising from misuse or inappropriate use of the products.
7.Anti-radiation design is not implemented in the products described in this document.
8.Please contact Ricoh sales representatives should you have any questions or comments
concerning the products or the technical information.
RICOH COMPANY., LTD. Electronic Devices Company
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■
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Electronic Devices Company
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