R5109G341A-TR-F [RICOH]
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8;型号: | R5109G341A-TR-F |
厂家: | RICOH ELECTRONICS DEVICES DIVISION |
描述: | Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8 光电二极管 电源管理电路 电源电路 |
文件: | 总2页 (文件大小:286K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
R5109G Series
Watchdog Timer Equipped with 2-Clock Monitoring with VD
The R5109G Series are CMOS-based system power ICs with a voltage detector (VD) and watchdog timer (WDT) integrated in a single chip.
R5109G 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 with an external capacitor
with a high degree of accuracy. R5109G is equipped with the function that inhibits clock monitoring of the WDT (INH) and the function to
supervise two different clocks.
FEATURES
• Supply Current (ISS) ························Typ. 11.5μA (VDD=-VDET+0.5V,
Clock pulse input)
• Operating Voltage Range (VDD) ······0.9V to 6.0V
(VD Section)
• Output Delay Time (tPLH)·················Typ. 370ms (CD=0.1μF)
<
• Output Delay Time Accuracy··········± 16% (-40°C Topt 105°C)
=
=
(WDT Section)
• Watchdog Timeout Period (tWD)······Typ. 310ms (CTW=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 (CTW=0.1μF)
<
•
Watchdog Timeout Period Accuracy ····± 33% (-40°C Topt 105°C)
• Package ·········································SSOP-8G
=
=
•
°
°
°
(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
R5109Gxx1A
R5109Gxx1C
(Nch. open drain output)
(CMOS output)
Power Supply
Microprocessor 1
VDD
V
DD
VDD
R
8
VDD
INH
CD
RESETB
SCK1
1
5
6
7
RESET
I/O
C
D
CD
R5109Gxx1A
Series
2
3
Vref2
Vref1
Vref2
Vref1
SCK2
CTW
Microprocessor 2
VDD
GND
GND
C
TW
CTW
GND
4
WATCHDOG
TIMER
CLOCK
WATCHDOG
TIMER
CLOCK
SW
CTW
SCK1
SCK2
SCK1
SCK2
DETECTOR
DETECTOR
CD
RESET
I/O
CLOCK
DETECTOR
CLOCK
DETECTOR
RESETB
RESETB
INH
INH
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
3,000 pcs
Part No.
SSOP-8G
R5109G
.
xx.
1.
∗-TR-F
: Select the output type from (
.
A
.
) Nch. open drain or (
.
C
.
) CMOS.
.
∗
PACKAGE (Top View)
TIMING CHART
SSOP-8G
DD +VDET
V
-VDET
8
7 6 5
V
INH
t
PHL
t
PHL
tPHL
1
2
3
4
+VTCD
V
CD -VTCD
1
2
RESETB Output pin for Reset "L" signal
tWDI
tWD
INH
Inhibit pin
V
ref2H
VCTW
Ext. Cap. pin for setting output
delay time of VD
3
CD
V
ref2L
4
5
6
GND
SCK1
SCK2
Ground pin
Watchdog timer clock input pin 1
Watchdog timer clock input pin 2
Ext. Cap. pin for setting reset and
watchdog timeout period of WDT
Power supply pin
V
SCK1
7
8
CTW
VDD
VSCK2
t
PLH
tWR
t
PLH
tPLH
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-172-091101
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.
2.The materials in this document may not be copied or otherwise reproduced in whole or in part
without prior written consent of Ricoh.
3.Please be sure to take any necessary formalities under relevant laws or regulations before
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
■Ricoh awarded ISO 14001 certification.
■
Ricoh presented with the Japan Management Quality Award for 1999.
The Ricoh Group was awarded ISO 14001 certification, which is an international standard for
environmental management systems, at both its domestic and overseas production facilities.
Our current aim is to obtain ISO 14001 certification for all of our business offices.
Ricoh continually strives to promote customer satisfaction, and shares the achievements
of its management quality improvement program with people and society.
Ricoh completed the organization of the Lead-free production for all of our products.
After Apr. 1, 2006, we will ship out the lead free products only. Thus, all products that
will be shipped from now on comply with RoHS Directive.
http://www.ricoh.com/LSI/
RICOH COMPANY, LTD.
Electronic Devices Company
● Shin-Yokohama office (International Sales)
3-2-3, Shin-Yokohama, Kohoku-ku, Yokohama City, Kanagawa 222-8530, Japan
Phone: +81-45-477-1697 Fax: +81-45-477-1698
RICOH EUROPE (NETHERLANDS) B.V.
● Semiconductor Support Centre
Prof. W.H.Keesomlaan 1, 1183 DL Amstelveen, The Netherlands
P.O.Box 114, 1180 AC Amstelveen
Phone: +31-20-5474-309 Fax: +31-20-5474-791
RICOH ELECTRONIC DEVICES KOREA Co., Ltd.
11 floor, Haesung 1 building, 942, Daechidong, Gangnamgu, Seoul, Korea
Phone: +82-2-2135-5700 Fax: +82-2-2135-5705
RICOH ELECTRONIC DEVICES SHANGHAI Co., Ltd.
Room403, No.2 Building, 690#Bi Bo Road, Pu Dong New district, Shanghai 201203,
People's Republic of China
Phone: +86-21-5027-3200 Fax: +86-21-5027-3299
RICOH COMPANY, LTD.
Electronic Devices Company
● Taipei office
Room109, 10F-1, No.51, Hengyang Rd., Taipei City, Taiwan (R.O.C.)
Phone: +886-2-2313-1621/1622 Fax: +886-2-2313-1623
相关型号:
R5109G341C-TR-F
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8
RICOH
R5109G381A-TR-F
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8
RICOH
R5109G381C-TR-F
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8
RICOH
R5109G391C-TR-F
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8
RICOH
R5109G401A-TR-F
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8
RICOH
R5109G401C-TR-F
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8
RICOH
R5109G401C-TR-FE
Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, HALOGEN FREE AND ROHS COMPLIANT, SSOP-8
RICOH
R5109G411A-TR-F
Power Supply Management Circuit, Adjustable, 1 Channel, CMOS, PDSO8, LEAD FREE, SSOP-8
RICOH
R5109G411C-TR-FE
Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO8, HALOGEN FREE AND ROHS COMPLIANT, SSOP-8
RICOH
©2020 ICPDF网 联系我们和版权申明