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RX5VT42A

型号：

RX5VT42A

描述：

低电压检测[ LOW VOLTAGE DETECTOR ]

品牌：

RICOH[ RICOH ELECTRONICS DEVICES DIVISION ]

页数：

31 页

PDF大小：

320 K

下载PDF手册
LOW VOLTAGE DETECTOR  
R×5VT SERIES  
APPLICATION MANUAL  
ELECTRONIC DEVICES DIVISION  
NO.EA-026-9803  
NOTICE  
1. The products and the product specifications described in this application manual are subject to change or dis-  
continuation 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. This application manual may not be copied or otherwise reproduced in whole or in part without prior written con-  
sent of Ricoh.  
3. Please be sure to take any necessary formalities under relevant laws or regulations before exporting or other-  
wise taking out of your country the products or the technical information described herein.  
4. The technical information described in this application manual 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, computer 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 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, fire-containment 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 application manual.  
8. Please contact Ricoh sales representatives should you have any questions or comments concerning the prod-  
ucts or the technical information.  
June 1995  
×
R 5VT SERIES  
APPLICATION MANUAL  
CONTENTS  
......................................................................................................  
OUTLINE  
1
1
1
2
2
2
4
5
5
6
....................................................................................................  
FEATURES  
.............................................................................................  
APPLICATIONS  
BLOCK DIAGRAMS  
.......................................................................................  
.................................................................................................  
TIME CHART  
PLH....................................................  
DEFINITION OF OUTPUT DELAY TIME t  
.......................................................................................  
SELECTION GUIDE  
...................................................................................  
PIN CONFIGURATION  
........................................................................................  
PIN DESCRIPTION  
...................................................................  
ABSOLUTE MAXIMUM RATINGS  
.................................................................  
ELECTRICAL CHARACTERISTICS  
7
10  
14  
15  
16  
16  
16  
17  
18  
19  
20  
20  
21  
22  
22  
22  
22  
22  
22  
23  
23  
23  
23  
....................  
ELECTRICAL CHARACTERITICS BY DETECTOR THRESHOLD  
OPERATION  
TEST CIRCUITS  
TYPICAL CHARACTERISTICS  
................................................................................................  
...........................................................................................  
......................................................................  
1) Supply Current vs. Input Voltage ...........................................................................  
2) Detector Threshold vs. Temperature .......................................................................  
3) Output Voltage vs. Input Voltage ...........................................................................  
4) Nch Driver Output Current vs. VDS .........................................................................  
5) Nch Driver Output Current vs. Input Voltage................................................................  
6) Pch Driver Output Current vs. Input Voltage................................................................  
7) Output Delay Time vs. Load Capacitance ..................................................................  
8) Output Delay Time vs. Input Pin Capacitance ..............................................................  
............................................................................  
• R 5VT A CPU Reset Circuit(Nch Open Drain Output).......................................................  
• R 5VT C CPU Reset Circuit(CMOS Output) ................................................................  
• R 5VT A Output delay Time Circuit 1 .......................................................................  
TYPICAL APPLICATIONS  
×
×
×
×
×
×
• R 5VT A Output delay Time Circuit 2 .......................................................................  
×
×
• Memory Back-up Circuit .....................................................................................  
• Voltage Level Indicator Circuit (lighted when the power runs out)............................................  
• Detector Threshold Changing Circuit ........................................................................  
• Window Comparator Circuit .................................................................................  
• Excessive Charge Preventing Circuit ........................................................................  
.............................................................................  
...........................................................................  
PACKAGE DIMENSIONS  
TAPING SPECIFICATIONS  
25  
26  
LOW VOLTAGE DETECTOR  
R×5VT SERIES  
OUTLINE  
The R×5VT Series are voltage detector ICs with high detector threshold accuracy and ultra-low supply current  
by CMOS process, which can be operated at an extremely low voltage and is used, for instance, for system reset.  
Each of these ICs consists of a voltage reference unit, a comparator, resistors for voltage detection, an output  
driver and a hysteresis circuit. The detector threshold is fixed with high accuracy.  
The R×5VT Series are operable by a lower voltage than that for the R×5VL Series, and can be driven by a sin-  
gle battery.  
Two output types, Nch open drain type and CMOS type, are available. Three types of packages, TO-92, SOT-  
89 (Mini-power Mold), SOT-23-5 (Mini-mold), are available.  
FEATURES  
............................  
• Ultra-low Supply Current  
TYP. 0.8µA (VDD=1.5V)  
0.7V to 10.0V (Topt =25˚C)  
..................  
• Broad Operating Voltage Range  
........................................  
• Detector Threshold  
Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V  
is possible (refer to Selection Guide).  
..............  
• High Accuracy Detector Threshold  
±2.5%  
..............  
• Low Temperature-Drift Coefficien of Detector Threshold  
TYP. ±100ppm/˚C  
.........................................  
• Two Output Types  
Nch Open Drain and CMOS  
..............................  
TO-92, SOT-89 (Mini-power Mold), SOT-23-5 (Mini-mold)  
• Three Types of Packages  
APPLICATIONS  
•
•
•
•
•
•
CPU & Logic Circuit Reset  
Battery Checker  
Window Comparator  
Wave Shaping Circuit  
Battery Back-Up Circuit  
Power Failure Detector  
1
R×5VT  
BLOCK DIAGRAMS  
×
××  
×
××  
• Nch Open Drain Output (R 5VT A)  
• CMOS Output (R 5VT C)  
VDD  
2
VDD  
2
OUT  
1
3
OUT  
GND  
+
–
+
–
1
3
Vref  
Vref  
GND  
TIME CHART  
Released Voltage +VDET  
Detected Voltage –VDET  
Detector Threshold Hysteresis  
Supply Voltage  
(VDD)  
Minimum Operating Voltage  
GND  
Output Voltage  
(OUT)  
GND  
tPLH  
DEFINITION OF OUTPUT DELAY TIME tPLH  
+VDET + 2.0V  
+VDET + 2.0V  
Input Voltage  
(VDD)  
Input Voltage  
(VDD)  
0.7V  
0.7V  
GND  
GND  
5.0V  
+VDET +2.0V  
Output Voltage  
Output Voltage  
2.5V  
+VDET + 2.0V  
2
GND  
GND  
tPHL  
tPLH  
tPHL  
tPLH  
Nch Open Drain Output  
CMOS Output  
2
R×5VT  
Output Delay Time tPLH is defined as follows:  
1. In the case of Nch Open Drain Output:  
When the time at which a pulse voltage which increases from 0.7V to +VDET+2.0V is applied to VDD is Time A, and  
the time at which the output voltage reaches 2.5V under the conditions that the output pin (OUT) is pulled up  
to 5V by a resistor of 470kΩ is Time B, the time period from Time A through Time B.  
2. In the case of CMOS Output:  
When the time at which a pulse voltage which increases from 0.7V to +VDET+2.0V is applied to VDD is Time A, and  
the time at which the output voltage reaches the voltage of (+VDET+2.0V)/2 is Time B, the time period from  
Time A through Time B.  
3
R×5VT  
SELECTION GUIDE  
The package type, the detector threshold, the output type, the packing type, and the taping type of R×5VT  
series can be designating at the user's request by specifying the part number as follows:  
R×5VT××××–×× ←Part Number  
↑
↑ ↑ ↑  
↑
a
b c d  
e
Code  
Contents  
Designation of Package Type:  
E: TO-92  
H: SOT-89 (Mini-power Mold)  
N: SOT-23-5 (Mini-mold)  
a
Setting Detector Threshold (–VDET):  
Stepwise setting with a step of 0.1V in the range of 0.9V to 6.0V is possible.  
b
c
Designation of Output Type:  
A: Nch Open Drain  
C: CMOS  
Designation of Packing Type:  
A: Taping  
C: Antistatic bag for TO-92 and samples  
d
e
Designation of Taping Type:  
Ex. TO-92:  
SOT-89:  
RF, RR, TZ  
T1, T2  
SOT-23-5: TR, TL  
(refer to Taping Specifications)  
“TZ”, “T1” and “TR” are prescribed as a standard  
For example, the product with Package Type SOT-89, Detector Threshold 3.5V, Output Type Nch Open Drain  
and Taping Type T1, is designated by Part Number RH5VT35AA-T1.  
4
R×5VT  
PIN CONFIGURATION  
•
TO-92  
•
•
SOT-23-5  
SOT-89  
5
4
(mark side)  
(mark side)  
(mark side)  
2
1
2
3
1
3
1
2
3
PIN DESCRIPTION  
•
•
•
SOT-23-5  
TO-92  
SOT-89  
Pin No.  
Symbol  
OUT  
VDD  
Pin No.  
Symbol  
OUT  
VDD  
Pin No.  
Symbol  
OUT  
VDD  
1
2
3
1
2
3
1
2
3
4
5
GND  
GND  
GND  
NC  
NC  
5
ABSOLUTE MAXIMUM RATINGS  
Topt=25˚C  
Symbol  
Item  
Rating  
Unit  
VDD  
Supply Voltage  
12  
V
V
CMOS  
Nch  
VSS–0.3 to VDD+0.3  
VOUT  
Output Voltage  
VSS–0.3 to 12  
IOUT  
PD1  
Output Current  
70  
mA  
mW  
mW  
˚C  
Power Dissipation 1 (NOTE  
300  
150  
1)  
2)  
PD2  
Power Dissipation 2 (NOTE  
Topt  
Tstg  
Operating Temperature Range  
Storage Temperature Range  
Lead Temperature (Soldering)  
–30  
–55  
80  
to +  
125  
to +  
˚C  
Tsolder  
260˚C,10s  
(NOTE 1) applied to SOT-89 and TO-92  
(NOTE 2) applied to SOT-23-5  
ABSOLUTE MAXIMUM RATINGS  
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under any  
conditions. Moreover, such values for any two items must not be reached simultaneously. Operation above  
these absolute maximum ratings may cause degradation or permanent damage to the device. These are stress  
ratings only and do not necessarily imply functional operation below these limits.  
6
R×5VT  
ELECTRICAL CHARACTERISTICS  
×
•
R 5VT09A/C  
Topt=25˚C  
Symbol  
Item  
Conditions  
MIN.  
TYP.  
MAX.  
Unit  
V
Note  
–VDET  
VHYS  
Detector Threshold  
0.878 0.900 0.922  
0.027 0.045 0.063  
Detector Threshold Hysteresis  
V
VDD=0.80V  
VDD=2.90V  
0.8  
0.9  
2.4  
2.7  
ISS  
Supply Current  
µA  
V
VDDH  
Maximum Operating Voltage  
10  
˚C  
Topt=25  
0.55  
0.65  
0.05  
0.50  
2.0  
0.70  
0.80  
V
Note 1  
Note 2  
VDDL  
Minimum Operating Voltage  
–
˚C ˚C  
30 ≤Topt≤80  
VDS=0.05V,VDD=0.70V 0.01  
VDS=0.50V,VDD=0.85V 0.05  
mA  
Nch  
IOUT  
tPLH  
Output Current  
Pch VDS=–2.1V,VDD=4.5V  
1.0  
mA  
µs  
Output Delay Time  
100  
–
∆ VDET  
Detector Threshold  
Temperature Coefficient  
–30˚C≤Topt≤80˚C  
±100  
ppm/˚C  
∆Topt  
×
•
R 5VT18A/C  
Topt=25˚C  
Symbol  
Item  
Conditions  
MIN.  
TYP.  
MAX.  
Unit  
V
Note  
–VDET  
VHYS  
Detector Threshold  
1.755 1.800 1.845  
0.054 0.090 0.126  
Detector Threshold Hysteresis  
V
VDD=1.70V  
VDD=3.80V  
0.8  
1.0  
2.4  
3.0  
ISS  
Supply Current  
µA  
V
VDDH  
Maximum Operating Voltage  
10  
Topt=25˚C  
0.55  
0.65  
0.05  
2.00  
2.0  
0.70  
0.80  
V
Note 1  
Note 2  
VDDL  
Minimum Operating Voltage  
–30˚C≤Topt≤80˚C  
VDS=0.05V,VDD=0.70V 0.01  
VDS=0.50V,VDD=1.50V 1.00  
mA  
Nch  
IOUT  
tPLH  
Output Current  
Pch VDS=–2.1V,VDD=4.5V  
1.0  
mA  
µs  
Output Delay Time  
100  
–
∆ VDET  
Detector Threshold  
–30˚C≤Topt≤80˚C  
±100  
ppm/˚C  
∆Topt  
Temperature Coefficient  
7
R×5VT  
• R×5VT27A/C  
Topt=25˚C  
Symbol  
–VDET  
VHYS  
Item  
Conditions  
MIN.  
TYP.  
MAX.  
Unit  
V
Note  
Detector Threshold  
2.633 2.700 2.767  
0.081 0.135 0.189  
Detector Threshold Hysteresis  
V
VDD=2.60V  
VDD=4.70V  
0.9  
1.1  
2.7  
3.3  
ISS  
Supply Current  
µA  
V
VDDH  
Maximum Operating Voltage  
10  
Topt=25˚C  
0.55  
0.65  
0.05  
2.00  
2.0  
0.70  
0.80  
V
Note 1  
Note 2  
VDDL  
Minimum Operating Voltage  
–30˚C≤Topt≤80˚C  
VDS=0.05V,VDD=0.70V 0.01  
VDS=0.50V,VDD=1.50V 1.00  
mA  
Nch  
IOUT  
tPLH  
Output Current  
Pch VDS=–2.1V,VDD=4.5V  
1.0  
mA  
µs  
Output Delay Time  
100  
–
∆ VDET  
Detector Threshold  
Temperature Coefficient  
–30˚C≤Topt≤80˚C  
±100  
ppm/˚C  
∆Topt  
Topt=25˚C  
Symbol  
–VDET  
VHYS  
Item  
Conditions  
MIN.  
TYP.  
MAX.  
Unit  
V
Note  
Detector Threshold  
3.510 3.600 3.690  
0.108 0.180 0.252  
Detector Threshold Hysteresis  
V
VDD=3.47V  
VDD=5.60V  
1.0  
1.2  
3.0  
3.6  
ISS  
Supply Current  
µA  
V
VDDH  
Maximum Operating Voltage  
10  
Topt=25˚C  
0.55  
0.65  
0.70  
0.80  
Note 1  
Note 2  
V
VDDL  
Minimum Operating Voltage  
–30˚C≤Topt≤80˚C  
VDS=0.05V,VDD=0.70V 0.01  
VDS=0.50V,VDD=1.50V 1.00  
0.05  
2.00  
2.0  
mA  
Nch  
IOUT  
tPLH  
Output Current  
Pch VDS=–2.1V,VDD=4.5V  
1.0  
mA  
µs  
Output Delay Time  
100  
–
∆ VDET  
Detector Threshold  
Temperature Coefficient  
–30˚C≤Topt≤80˚C  
±100  
ppm/˚C  
∆Topt  
8
R×5VT  
×
•
R 5VT45A/C  
Topt=25˚C  
Symbol  
Item  
Conditions  
MIN.  
TYP.  
MAX.  
Unit  
V
Note  
–VDET  
VHYS  
Detector Threshold  
4.388 4.500 4.612  
0.135 0.225 0.315  
Detector Threshold Hysteresis  
V
VDD=4.34V  
VDD=6.50V  
1.1  
1.3  
3.3  
3.9  
ISS  
Supply Current  
µA  
V
VDDH  
Maximum Operating Voltage  
10  
Topt=25˚C  
0.55  
0.65  
0.05  
2.00  
3.0  
0.70  
0.80  
V
Note 1  
Note 2  
VDDL  
Minimum Operating Voltage  
–
30˚C≤Topt≤80˚C  
VDS=0.05V,VDD=0.70V 0.01  
VDS=0.50V,VDD=1.50V 1.00  
mA  
Nch  
IOUT  
tPLH  
Output Current  
Pch VDS=–2.1V,VDD=8.0V  
1.5  
mA  
µs  
Output Delay Time  
100  
∆–VDET  
∆Topt  
Detector Threshold  
–30˚C≤Topt≤80˚C  
±100  
ppm/˚C  
Temperature Coefficient  
×
•
R 5VT54A/C  
Topt=25˚C  
Symbol  
Item  
Conditions  
MIN.  
TYP.  
MAX.  
Unit  
V
Note  
–VDET  
VHYS  
Detector Threshold  
5.265 5.400 5.535  
0.162 0.270 0.378  
Detector Threshold Hysteresis  
V
VDD=5.20V  
VDD=7.40V  
1.2  
1.4  
3.6  
4.2  
ISS  
Supply Current  
µA  
V
VDDH  
Maximum Operating Voltage  
10  
Topt=25˚C  
0.55  
0.65  
0.05  
2.00  
3.0  
0.70  
0.80  
V
Note 1  
Note 2  
VDDL  
Minimum Operating Voltage  
–
30˚C≤Topt≤80˚C  
VDS=0.05V,VDD=0.70V 0.01  
VDS=0.50V,VDD=1.50V 1.00  
mA  
Nch  
IOUT  
tPLH  
Output Current  
Pch VDS=–2.1V,VDD=8.0V  
1.5  
mA  
µs  
Output Delay Time  
100  
∆–VDET  
∆ Topt  
Detector Threshold  
–30˚C≤Topt≤80˚C  
±100  
ppm/˚C  
Temperature Coefficient  
(Note 1) Minimum Operating Voltage means the value of input voltage when output voltage maintains 0.1V or less, provided that in the case of  
Nch Open Drain Type Products, the pull-up resistance is set at 470kΩ, and the pull-up voltage is set at 5.0V.  
(Note 2) Refer to the previously defined “Output Delay Time tPLH”.  
9
R×5VT  
ELECTRICAL CHARACTEISTICS BY DETECTOR THRESHOLD  
×
×
•
R 5VT09A/C to R 5VT39A/C  
Detector Threshold  
Hysteresis  
Detector Threshold  
Supply Current 1  
Iss(µA)  
Supply Current 2  
Iss(µA)  
Part Number  
–VDET(V)  
TYP.  
VHYS(V)  
MIN.  
MAX.  
MIN.  
TYP.  
MAX.  
Conditions  
TYP.  
MAX. Conditions  
TYP.  
MAX.  
R×5VT09A/C 0.878 0.900 0.922 0.027 0.045 0.063  
R×5VT10A/C 0.975 1.000 1.025 0.030 0.050 0.070  
R×5VT11A/C 1.073 1.100 1.127 0.033 0.055 0.077  
R×5VT12A/C 1.170 1.200 1.230 0.036 0.060 0.084  
R×5VT13A/C 1.268 1.300 1.332 0.039 0.065 0.091  
R×5VT14A/C 1.365 1.400 1.435 0.042 0.070 0.098  
R×5VT15A/C 1.463 1.500 1.537 0.045 0.075 0.105  
R×5VT16A/C 1.560 1.600 1.640 0.048 0.080 0.112  
R×5VT17A/C 1.658 1.700 1.742 0.051 0.085 0.119  
R×5VT18A/C 1.755 1.800 1.845 0.054 0.090 0.126  
0.9  
2.7  
0.8  
2.4  
2.7  
3.0  
1.0  
1.1  
1.2  
3.0  
V
DD=  
R×5VT19A/C 1.853 1.900 1.947 0.057 0.095 0.133 (–VDET  
)
–0.10V  
R×5VT20A/C 1.950 2.000 2.050 0.060 0.100 0.140  
R×5VT21A/C 2.048 2.100 2.152 0.063 0.105 0.147  
R×5VT22A/C 2.145 2.200 2.255 0.066 0.110 0.154  
R×5VT23A/C 2.243 2.300 2.357 0.069 0.115 0.161  
R×5VT24A/C 2.340 2.400 2.460 0.072 0.120 0.168  
R×5VT25A/C 2.438 2.500 2.562 0.075 0.125 0.175  
R×5VT26A/C 2.535 2.600 2.665 0.078 0.130 0.182  
R×5VT27A/C 2.633 2.700 2.767 0.081 0.135 0.189  
R×5VT28A/C 2.730 2.800 2.870 0.084 0.140 0.196  
R×5VT29A/C 2.828 2.900 2.972 0.087 0.145 0.203  
R×5VT30A/C 2.925 3.000 3.075 0.090 0.150 0.210  
R×5VT31A/C 3.023 3.100 3.177 0.093 0.155 0.217  
R×5VT32A/C 3.120 3.200 3.280 0.096 0.160 0.224  
R×5VT33A/C 3.218 3.300 3.382 0.099 0.165 0.231  
V
DD  
(–VDET  
+2.0V  
=
0.9  
3.3  
)
VDD=  
R×5VT34A/C 3.315 3.400 3.485 0.102 0.170 0.238 (–VDET  
)
1.0  
3.6  
–0.13V  
R×5VT35A/C 3.413 3.500 3.587 0.105 0.175 0.245  
R×5VT36A/C 3.510 3.600 3.690 0.108 0.180 0.252  
R×5VT37A/C 3.608 3.700 3.792 0.111 0.185 0.259  
R×5VT38A/C 3.705 3.800 3.895 0.114 0.190 0.266  
tPLH”.  
(Note 1) Refer to the previously defined “Output Delay Time  
(Note 2) Refer to the previously defined “Minimum Operating Voltage”.  
Condition 1:Topt =25˚C  
Condition 2:–30˚C ≤Topt ≤ 80˚C  
10  
Topt=25˚C  
Output Delay  
Time  
Minimum  
Detector Threshold  
Tempco.  
Output Current 1  
IOUT(mA)  
Output Current 2  
IOUT(mA)  
Output Current 3  
IOUT(mA)  
Operating Voltage  
∆–VDET/∆Topt  
(ppm/˚C)  
tPLH(µs)  
MAX.  
VDDL(V)  
Conditions  
MIN.  
TYP.  
Conditions  
MIN.  
TYP.  
Conditions  
MIN.  
TYP.  
TYP.  
MAX.  
Conditions  
TYP.  
V
DD=  
0.05  
0.50  
0.85V  
V
DD=  
0.2  
1.0  
1.0V  
Nch  
Pch  
Note 2 Note 2  
–30˚C≤  
VDS=  
0.05V 0.01  
VDS=  
0.05 0.50V  
VDS=  
–2.1V  
Note 1  
100  
Condition 1  
0.55  
Condition 1  
0.70  
Topt ±100  
1.0  
2.0  
≤
80˚C  
VDD=  
1.5V  
1.0  
2.0  
VDD=  
0.7V  
VDD=  
4.5V  
Condition 2  
0.65  
Condition 2  
0.80  
11  
R×5VT  
×
×
•
R 5VT40A/C to R 5VT60A/C  
Detector Threshold  
Hysteresis  
Supply Current 1  
ISS(µA)  
Supply Current 2  
ISS(µA)  
Detector Threshold  
Part Number  
–VDET(V)  
TYP.  
VHYS(V)  
MIN.  
MAX.  
MIN.  
TYP.  
MAX.  
Conditions  
TYP.  
MAX.  
Conditions  
TYP.  
MAX.  
R×5VT40A/C 3.900 4.000 4.100 0.120 0.200 0.280  
R×5VT41A/C 3.998 4.100 4.202 0.123 0.205 0.287  
R×5VT42A/C 4.095 4.200 4.305 0.126 0.210 0.294  
R×5VT43A/C 4.193 4.300 4.407 0.129 0.215 0.301  
R×5VT44A/C 4.290 4.400 4.510 0.132 0.220 0.308  
R×5VT45A/C 4.388 4.500 4.612 0.135 0.225 0.315  
R×5VT46A/C 4.485 4.600 4.715 0.138 0.230 0.322  
R×5VT47A/C 4.583 4.700 4.817 0.141 0.235 0.329  
R×5VT48A/C 4.680 4.800 4.920 0.144 0.240 0.336  
R×5VT49A/C 4.778 4.900 5.022 0.147 0.245 0.343  
R×5VT50A/C 4.875 5.000 5.125 0.150 0.250 0.350  
R×5VT51A/C 4.973 5.100 5.277 0.153 0.255 0.357  
R×5VT52A/C 5.070 5.200 5.330 0.156 0.260 0.364  
R×5VT53A/C 5.168 5.300 5.432 0.159 0.265 0.371  
R×5VT54A/C 5.265 5.400 5.535 0.162 0.270 0.378  
R×5VT55A/C 5.363 5.500 5.637 0.165 0.275 0.385  
R×5VT56A/C 5.460 5.600 5.740 0.168 0.280 0.392  
R×5VT57A/C 5.558 5.700 5.842 0.171 0.285 0.399  
R×5VT58A/C 5.655 5.800 5.945 0.174 0.290 0.406  
R×5VT59A/C 5.753 5.900 6.047 0.177 0.295 0.413  
V
DD  
(–VDET  
–0.16V  
=
)
1.1  
3.3  
1.3  
3.9  
V
DD  
(–VDET  
+2.0V  
=
)
V
DD  
(–VDET  
–0.20V  
=
)
1.2  
3.6  
1.4  
4.2  
(Note 1) Refer to the previously defined “Output Delay Time tPLH”.  
(Note 2) Refer to the previously defined “Minimum Operating Voltage”.  
Condition 1:Topt =25˚C  
Condition 2:–30˚C ≤Topt ≤ 80˚C  
12  
Topt=25˚C  
Output Delay  
Time  
Minimum  
Detector Threshold  
Output Current 1  
IOUT(mA)  
Output Current 2  
IOUT(mA)  
Output Current 3  
IOUT(mA)  
Tempco.  
Operating Voltage  
∆–VDET/∆Topt  
(ppm/˚C)  
tPLH(µs)  
MAX.  
VDDL(V)  
Conditions  
MIN.  
TYP.  
Conditions  
MIN.  
TYP.  
Conditions  
MIN.  
TYP.  
TYP.  
MAX.  
Conditions  
TYP.  
Nch  
Pch  
Note 2 Note 2  
VDS=  
0.05V 0.01  
VDS= VDD=  
0.05 0.50V 1.5V  
VDS=  
–2.1V  
Note 1  
100  
Condition 1 Condition 1  
–
30˚C≤  
1.0  
2.0  
1.5  
3.0  
0.55  
0.70  
Topt  
±100  
≤80˚C  
VDD=  
0.7V  
VDD=  
8.0V  
Condition 2 Condition 2  
0.65  
0.80  
13  
OPERATION  
VDD  
Ra  
+
Pch  
Nch  
• In R×5VT×A, Nch Tr. drain is  
connected to OUT pin.  
–
OUT  
• In R×5VT×C, Nch Tr. drain  
and Pch Tr. drain are connected  
to OUT pin.  
Rb  
Tr.1  
Rc  
GND  
FIG. 1 Block Diagram  
Operation Diagram  
1
2
3
5
4
Step  
Step 1 Step 2  
Step 3  
Step 4 Step 5  
Comparator(+) Pin  
Input Voltage  
I
II  
II  
II  
I
B
Released Volage +VDET  
Detector Threshold Hysteresis  
A
Supply Volage  
(VDD  
Detected Volage –VDET  
Comparator Output  
H
L
Indefinite  
Indefinite  
L
H
)
Tr. 1  
OFF ON  
ON OFF  
Minimum Operating Volage  
GND  
Pch  
ON OFF Indefinite OFF ON  
Output Tr.  
Nch  
OFF ON  
Rb + Rc  
Indefinite  
ON OFF  
I.  
·VDD  
Output Volage  
(OUT)  
Ra + Rb + Rc  
Rb  
·VDD  
.
II  
Ra + Rb  
GND  
tPLH  
FIG. 2 Operation Diagram  
Step 1. Output Voltage is equal to Power Source Voltage (VDD).  
Step 2. When Input Voltage to Comparator reaches the state of Vref≥VDD·(Rb+Rc)/(Ra+Rb+Rc)at Point A (Detected Voltage –VDET), the output of Com-  
parator is reserved, so that Output Voltage becomes GND.  
Step 3. In the case of CMOS Output, Output Voltage becomes unstable when Supply Voltage (VDD) is smaller than Minimum Operating Voltage. In the  
case of Nch Open Drain Output, a pulled-up voltage is output.  
Step 4. Output Voltage becomes equal to GND.  
Step 5. When Input Voltage to Comparator reaches the state of Vref≤VDD· (Rb)/(Ra+ Rb) at Point B (Released Voltage +VDET), the output of Comparator is reversed,  
so that Output Voltage becomes equal to Supply Voltage (VDD).  
14  
R×5VT  
TEST CIRCUITS  
ISS  
Rn:R×5VT××A:470kΩ  
VDD  
VDD  
R×5VT××C:None  
VDD Rn  
OUT  
R×5VT  
VDD  
OUT  
R×5VT  
SERIES  
VDET  
SERIES  
GND  
GND  
VSS  
VSS  
VSS  
FIG. 4 Detector Threshold Test Circuit  
FIG. 3 Supply Current Test Circuit  
VDD  
VDD  
VDD  
VDD  
IOUT  
IOUT  
OUT  
R×5VT××C  
SERIES  
OUT  
R×5VT  
SERIES  
VDD –VDS  
VSS  
+VDS  
VSS  
GND  
GND  
VSS  
VSS  
FIG. 6 Pch Driver Output Current Test Circuit  
FIG. 5 Nch Driver Output Current Test Circuit  
+5.0V  
ROUT  
470kΩ  
OUT  
RIN  
100kΩ  
+5.0V  
ROUT  
470kΩ  
VDD  
+VDET+2.0V  
+VDET+2.0V  
VDD  
OUT  
R×5VT××A  
SERIES  
OUT  
A
R
×
5VT××  
P.G.  
0.7V  
VSS  
P.G.  
OUT  
0.7V  
VSS  
SERIES  
CIN  
COUT  
GND  
GND  
VSS  
VSS  
FIG. 7 Output Delay Time Test Circuit (1)  
FIG. 8 Output Delay Time Test Circuit (2)  
In Output Delay Time Test Circuits (1) and (2) in FIG. 7 and FIG. 8, their respective Output Voltage Fall Times  
(tPHL) and Rise Times (tPLH) are defined as shown below.  
+VDET+2.0V  
+VDET+2.0V  
Input Voltage  
Input Voltage  
0.7V  
0.7V  
GND  
GND  
5.0V  
+VDET+2.0V  
Output Voltage  
Output Voltage  
+VDET+2.0V  
2
2.5V  
GND  
GND  
tPHL  
tPLH  
tPHL  
tPLH  
Nch Open Drain Output  
CMOS Output  
15  
R×5VT  
TYPICAL CHARACTERISTICS  
1) Supply Current vs. Input Voltage  
R×5VT09C  
R×5VT27C  
2.0  
1.5  
1.0  
3.0  
Topt=80˚C  
25˚C  
–30˚C  
2.5  
2.0  
Topt=80˚C  
25˚C  
1.5  
–30˚C  
1.0  
0.5  
0
0.5  
0
0
2
4
6
8
10  
0
2
4
6
8
10  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
R×5VT45C  
3.0  
2.5  
2.0  
1.5  
Topt=80˚C  
25˚C  
–30˚C  
1.0  
0.5  
0
0
2
4
6
8
10  
Input Voltage VIN(V)  
2) Detector Threshold vs. Temperature  
R×5VT27C  
R×5VT09C  
2.9  
1.00  
0.98  
0.96  
+VDET  
2.8  
2.7  
+VDET  
0.94  
0.92  
–VDET  
0.90  
–VDET  
2.6  
2.5  
0.88  
0.86  
0.84  
–40 –20  
0
20  
40  
60  
80  
100  
–40 –20  
0
20  
40  
60  
80  
100  
Temperature Topt(˚C)  
Tenperature Topt(˚C)  
16  
R×5VT  
R×5VT45C  
4.8  
4.7  
4.6  
4.5  
4.4  
+VDET  
–VDET  
40  
–40 –20  
0
20  
60  
80  
100  
Temperature Topt(˚C)  
3) Output Voltage vs. Input Voltage  
R×5VT09A  
R×5VT09A  
VDD Pull-up 470kΩ  
5V Pull-up 470kΩ  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
6
5
4
3
2
1
0
Topt=–30˚C  
25˚C  
80˚C  
Topt=–30˚C  
25˚C  
80˚C  
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6  
Input Voltage VIN(V)  
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6  
Input Voltage VIN(V)  
R×5VT27A  
R×5VT27A  
VDD Pull-up 470kΩ  
5V Pull-up 470kΩ  
4
6
5
4
3
2
1
0
3
2
1
0
Topt=–30˚C  
25˚C  
Topt=–30˚C  
25˚C  
80˚C  
80˚C  
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0  
Input Voltage VIN(V)  
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0  
Input Voltage VIN(V)  
17  
R×5VT  
R×5VT45A  
R×5VT45A  
5V Pull-up 470kΩ  
VDD Pull-up 470kΩ  
6
5
4
3
6
Topt=–30˚C  
5
4
3
25˚C  
80˚C  
2
1
0
2
1
0
Topt=–30˚C  
25˚C  
80˚C  
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Input Voltage VIN(V)  
Input Voltage VIN(V)  
4) Nch Driver Output Current vs. VDS  
R×5VT09C  
R×5VT09C  
Topt=25˚C  
Topt=25˚C  
0.50  
0.45  
0.25  
0.40  
0.20  
0.15  
0.10  
VDD=0.85V  
0.35  
0.30  
0.25  
VDD=0.8V  
0.20  
0.7V  
0.15  
0.7V  
0.10  
0.05  
0
0.05  
0
0
0.2  
0.4  
VDS(V)  
0.6  
0.8  
0
0.02  
0.04  
0.06  
0.08  
0.10  
VDS(V)  
R×5VT27C  
R×5VT27C  
Topt=25˚C  
Topt=25˚C  
0.25  
0.20  
0.15  
0.10  
0.05  
0
16  
14  
12  
10  
8
VDD=0.8V  
VDD=2.5V  
2.0V  
1.5V  
6
0.7V  
4
2
0
0
0.02  
0.04  
0.06  
VDS(V)  
0.08  
0.10  
0
0.5  
1.0  
1.5  
VDS(V)  
2.0  
2.5  
18  
R×5VT  
R×5VT45C  
R×5VT45C  
Topt=25˚C  
VDD=4.0V  
3.5V  
Topt=25˚C  
40  
35  
30  
25  
20  
15  
10  
5
0.25  
0.20  
0.15  
0.10  
0.05  
0
VDD=0.8V  
0.7V  
3.0V  
2.5V  
2.0V  
1.5V  
0
0
0.02  
0.04  
0.06  
0.08  
0.10  
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0  
VDS(V)  
VDS(V)  
5) Nch Driver Output Current vs. Input Voltage  
R×5VT27C  
R×5VT09C  
VDS=0.5V  
VDS=0.5V  
12  
10  
8
0.7  
0.6  
Topt=–30˚C  
Topt=80˚C  
0.5  
25˚C  
0.4  
0.3  
6
4
2
0
80˚C  
0.2  
25˚C  
0.1  
–30˚C  
0.8  
0
0
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
0.2  
0.4  
0.6  
1.0  
1.2  
Input Voltage VIN(V)  
Input Voltage VIN(V)  
R×5VT45C  
VDS=0.5V  
20  
15  
Topt=–30˚C  
25˚C  
10  
5
80˚C  
0
0
1
2
3
4
5
6
Input Voltage VIN(V)  
19  
R×5VT  
6) Pch Driver Output Current vs. Input Voltage  
R×5VT09C  
R×5VT27C  
Topt=25˚C  
VDS=2.1V  
Topt=25˚C  
1.4  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
1.2  
1.5V  
1.0V  
1.0  
VDS=0.7V  
0.8  
0.6  
0.5V  
0.5V  
0.4  
0.2  
0.0  
0
1
2
3
4
5
6
7
0
2
4
6
8
Input Voltage VIN(V)  
Input Voltage VIN(V)  
R×5VT45C  
Topt=25˚C  
VDS=2.1V  
4
1.5V  
3
2
1
0
1.0V  
0.5V  
0
2
4
6
8
10  
Input Voltage VIN(V)  
7) Output Delay Time vs. Load Capacitance  
R×5VT27A  
R×5VT09A  
100  
100  
10  
10  
tPLH  
tPLH  
1
1
0.1  
0.1  
tPHL  
tPHL  
0.01  
0.0001  
0.01  
0.0001  
0.001  
0.01  
0.1  
0.001  
0.01  
0.1  
Load Capacitance COUT(µF)  
Load Capacitance COUT(µF)  
20  
R×5VT  
R×5VT45A  
100  
10  
tPLH  
1
0.1  
tPHL  
0.01  
0.0001  
0.001  
0.01  
0.1  
Load Capacitance COUT(µF)  
8) Output Delay Time vs. Input Pin Capacitance  
R×5VT09A  
R×5VT27A  
100  
10  
100  
10  
tPLH  
tPHL  
tPHL  
1
0.1  
1
tPLH  
0.1  
0.01  
0.0001  
0.01  
0.0001  
0.001  
0.01  
0.1  
0.001  
0.01  
0.1  
Input Pin Capacitance CIN(µF)  
Input Pin Capacitance CIN(µF)  
R×5VT45A  
100  
10  
tPLH  
tPHL  
1
0.1  
0.01  
0.0001  
0.001  
0.01  
0.1  
Input Pin Capacitance CIN(µF)  
21  
R×5VT  
TYPICAL APPLICATIONS  
×
××  
•
R 5VT A CPU Reset Circuit (Nch Open Drain Output)  
(1)Input Voltage to R×5VT××A is the same as  
(2) Input Voltage to R×5VT××A is different  
the input voltage to CPU.  
from the input voltage to CPU.  
VDD1  
VDD  
VDD2  
VDD  
5VT××  
VDD  
VDD  
5VT××  
VDD  
470kΩ  
R
470kΩ  
R
CPU  
CPU  
R
×
A
R
×
A
RESET  
GND  
RESET  
GND  
SERIES  
SERIES  
OUT  
OUT  
GND  
GND  
×
××  
•
R 5VT C CPU Reset Circuit (CMOS Output)  
VDD  
VDD  
VDD  
CPU  
R
×
5VT××  
C
RESET  
GND  
SERIES  
OUT  
GND  
×
××  
×
××  
•
•
R 5VT A Output delay Time Circuit 1  
R 5VT A Output delay Time Circuit 2  
VDD  
VDD  
VDD  
VDD  
VDD  
470kΩ  
R
470kΩ  
100kΩ  
R1  
R2  
OUT  
A
CPU  
CPU  
R
×
5VT××  
R
×
5VT××  
A
RESET  
GND  
RESET  
GND  
SERIES  
VDD  
SERIES  
OUT  
GND  
GND  
•
Memory Back-up Circuit  
VDD  
D1  
VCC  
Y1  
Y2  
Y3  
Y4  
VCC  
VCC  
VCC  
VCC  
D2  
A
B
RAM1  
RAM2  
RAM3  
RAM4  
G
GND CS  
GND CS  
GND CS  
GND CS  
GND  
VDD  
OUT  
R×5VT××  
C
SERIES  
GND  
22  
R×5VT  
•
Voltage Level Indicator Circuit (lighted when the power runs out)  
( Nch Open Drain Output)  
VDD  
VDD  
OUT  
R×5VT××  
A
SERIES  
GND  
•
Detector Threshold Changing Circuit  
(Nch Open Drain Output)  
Ra + Rb  
Rb  
VDD  
Ra  
Changed Detector Threshold =  
· (–VDET )  
OUT  
VDD  
C
Ra + Rb  
Hysteresis Voltage =  
Rb  
R
×
5VT××  
A
· VHYS  
SERIES  
+
Rb  
GND  
(Note) Please note that when the value of Ra becomes excessively large, the detector  
threshold detected may differ from the value calculated by use of the above for-  
mula.  
•
Window Comparator Circuit  
(Nch Open Drain Output)  
VDD  
VDET1  
VDET2  
VDD  
VDD  
OUT  
R
×
5VT××  
A
OUT  
VDD  
SERIES  
VDET2  
VSS  
OUT  
A
R×5VT××  
GND  
SERIES  
VDET1  
OUT  
VSS  
GND  
•
Excessive Charge Preventing Circuit  
R1  
D1  
Light  
VDD  
R2  
R4  
OUT  
R×5VT××C  
SERIES  
R3  
VSS  
23  
R×5VT  
APPLICATION HINTS  
VDD  
VDD  
VDD  
VDD  
R1  
R
R2  
R×5VT  
OUT  
R×5VT  
SERIES  
OUT  
SERIES  
GND  
GND  
FIG.10  
FIG.9  
1. When R×5VT××C (CMOS Output) is used in FIG. 9, this IC may oscillate by the through-type current at the  
detection when impedance is connected between Power Source VDD and R×5VT VDD Pin.When  
R×5VT××A (Nch Open Drain Output) is used in FIG. 9, and R becomes excessively large, Detector Threshold  
may be varied because of the voltage drop of the supply current in the IC itself.  
2. The connection as shown in FIG. 10 may cause the oscillation in both R×5VT××C (CMOS Output) and  
R×5VT××A (Nch Open Drain Output).  
24  
R×5VT  
PACKAGE DIMENSIONS (Unit: mm)  
•
•
SOT-89  
TO-92  
4.5±0.1  
1.6±0.2  
4.2MAX.  
5.2MAX.  
1.5±0.1  
0.4±0.1  
ø1.0  
0.6MAX.  
0.55MAX.  
0.5MAX.  
3
1
2
0.4±0.1  
1
2
3
1.27  
2.54  
0.42  
±0.1  
0.47  
±0.1  
0.42  
±0.1  
1.5±0.1  
1.5±0.1  
•
SOT-23-5  
2.9±0.2  
1.9±0.2  
+0.2  
–0.1  
1.1  
(0.95)  
(0.95)  
0.8±0.1  
5
4
0 to 0.1  
1
2
3
0.4±0.1  
+0.1  
–0.05  
0.15  
25  
R×5VT  
TAPING SPECIFICATIONS (Unit: mm)  
•
TO-92  
12.7  
±1.0  
5.2 MAX.  
*
4.2 MAX.  
1.45 MAX.  
0.7±0.2  
0.6 MAX.  
0.5 MAX.  
0.55  
MAX.  
ø 4.0±0.2  
12.7± 0.3  
: Mark Side  
*
RF  
RR  
+0.4  
–0.1  
2.5  
When TZ type tape is  
pulled out from the  
direction F  
When TZ type tape is  
pulled out from the  
direction B  
(Note)  
2
1
3
User Direction of Feed  
•
SOT-89  
(Note) When taping is conducted, the pins of TO-92 are  
subjected to a particular forming.  
+0.1  
–0  
ø 1.5  
4.0±0.1  
0.3±0.1  
2.0±0.05  
(Note)  
TZ type tape is not in the form of a reel, but is  
packed in a zigzag state in a box.Therefore, the  
tape can be used as either an RF type tape or an  
RR type tape,depending upon the pulling out  
direction (B or F).  
5.0  
8.0±0.1  
2.5MAX.  
T 2  
T 1  
User Direction of Feed.  
•
SOT-23-5  
4.0±0.1  
+0.1  
–0  
ø
1.5  
0.3±0.1  
2.0±0.05  
3.2  
3.3  
4.0±0.1  
2.0MAX.  
T L  
T R  
User Direction of Feed.  
26  
RICOH COMPANY, LTD.  
ELECTRONIC DEVICES DIVISION  
HEADQUARTERS  
13-1, Himemuro-cho, Ikeda City, Osaka 563-8501, JAPAN  
Phone 81-727-53-1111 Fax 81-727-53-6011  
YOKOHAMA OFFICE (International Sales)  
3-2-3, Shin-Yokohama, Kohoku-ku, Yokohama City, Kanagawa 222-8530,  
JAPAN  
Phone 81-45-477-1697 Fax 81-45-477-1694 · 1695  
http://www.ricoh.co.jp/LSI/english/  
RICOH CORPORATION  
ELECTRONIC DEVICES DIVISION  
SAN JOSE OFFICE  
3001 Orchard Parkway, San Jose, CA 95134-2088, U.S.A.  
Phone 1-408-432-8800 Fax 1-408-432-8375  
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