R5104V003A-E2-F [RICOH]
Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO10, 3.10 X 6.40 MM, 0.50 MM PITCH, LEAD FREE, SSOP-10;
| 型号： | R5104V003A-E2-F |
| 厂家： | 
RICOH ELECTRONICS DEVICES DIVISION |
| 描述： | Power Supply Management Circuit, Fixed, 1 Channel, CMOS, PDSO10, 3.10 X 6.40 MM, 0.50 MM PITCH, LEAD FREE, SSOP-10 光电二极管 |
| 文件： | 总2页 (文件大小：173K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
R5104V Series
Watchdog Timer with VD and VR
The R5104V Series are CMOS-based system power ICs with a voltage regulator, voltage detector, and watchdog timer integrated in a single chip.
The R5104V 's input voltage of Max. 36V (absolute maximum rating: Max. 50V) makes it suitable for use in car applications. The voltage regulator
with an external output transistor is capable of outputting approximately 1A, using the PNP transistor of hFE=100 to 300. R5104V monitors the power
system of devices equipped with microprocessors and prevents system runaway with a reset signal when a malfunction occurs.
FEATURES
• Supply Current (ISS) ························Typ. 60μA (IOUT=0mA)
• Operating Voltage Range (VDD) ······Max. 36V
(VR Section)
• Detector Threshold Accuracy ·······± 2%
•
···Typ. ± 50ppm/°C
• TPeomwpe.r-coonefrfe. osef Dt teimteectocar nThbreesshpoeldcified with an external capacitor
• Output Voltage Range (VOUT)··········3.3V to 5.0V ∗ (internally fixed)
• Output Voltage Accuracy ················± 2%
• Temp. coeff. of Output Voltage ·······Typ. ± 50ppm/°C
• Output Current (IOUT)·······················1A∗∗
• Fold-back Protection Circuit ···········Current limit Typ. 0.5mA
(Base current limit of PNP Tr.)
(WDT Section)
• Watchdog Timeout Period (tWD)······Can be set with an external capacitor.
(Typ. 300ms at CTW=0.1μF)
•
····-100ms, +210ms (CTW=0.1μF)
• WThaetcwhdaotgchTdimoegotuimt PeerrcioadnAbcecusratocpyped by the CE pin. (A Version),
(VD Section)
• TPhaeckdaegveic·e···c··a··n···b··e···p··u··t··i·n··t·o···s··t·a··n··d··b··y·SmSoOdeP-(1B0Version)
•
Detector Threshold Range (-VDET)
·······2.8V to 4.0V ∗ (internally fixed)
) For information about combination of set output voltage period, please check our website.
) The value depends on an external transistor.
∗
∗∗
BLOCK DIAGRAMS
TYPICAL APPLICATION
R5104VxxxA
(Watchdog timer OFF type)
R5104VxxxB
(Standby type)
Microprocessor
RESET
VIN
9
CE
RESET
5
1
2
4
3
6
CE
9
CE
9
5
VDD
ISENSE
EXT
R
Level Shift
WDT
SCK
6
2
Level Shift
WDT
SCK
6
2
RESET
5
RESET
I
SENSE
Current Limit
Current Limit
ISENSE
C
TW
7
8
CTW
CD
7
C
TW
7
1
EXT
4
3
EXT
4
3
VDD
1
V
DD
VOUT
SCK
VDD
VOUT
V
OUT
COUT
Vref
Vref
CIN CTW CD
10
GND
DOUT
Vref
Vref
C
D
8
CD
8
GND
10
GND
10
C
C
C
D
: Capacitor for setting the output delay time for the
voltage detector (10pF or more)
TW : Capacitor for setting the watchdog timeout period
and reset hold time (100pF or more)
OUT :10μF or more
R : Resistor for limiting the regulator output current. The
SENSE pin monitors the voltage drop that occurs in R and
triggers the current limiter when Typ. 0.3V is exceeded.
I
SELECTION GUIDE
.
xxx : Specify combination of the output voltage and detector threshold
using serial numbers.
Package
SSOP-10
Quantity per Reel
2,000 pcs
Part No.
R5104V
.
xxx∗-E2-F
: Select the operation of the CE pin from (
.
.
) watchdog timer OFF or
.
∗
A
(.
B
.
) standby.
PACKAGE (Top View)
TYPICAL CHARACTERISTIC
Watchdog Timeout Period, Watchdog Timeout Reset Time
vs. Capacitance of CTW Pin
SSOP-10
10
9 8 7 6
10000
1000
tWD
100
10
1
1
2 3 4 5
t
WR
1
2
3
4
5
VDD
6
7
8
9
SCK
CTW
CD
ISENSE
VOUT
EXT
CE
0.1
0.001
0.01
0.1
1
10 GND
RESET
Capacitance of CTW Pin CTW (µF)
APPLICATION
• Monitoring of the power system of devices equipped with microprocessors
No.EK-141-091101
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
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