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产品型号BD45E282G-MTR的Datasheet PDF文件预览

Datasheet  
Voltage Detector IC Series  
Counter Timer Built-in  
CMOS Voltage Detector IC  
BD45Exxxx-M series BD46Exxxx-M series (AEC-Q100 Qualified)  
Key Specifications  
General Description  
Detection voltage:  
2.3V to 4.8V (Typ.)  
0.1V steps  
±1.0%  
ROHM’s BD45Exxxx-M and BD46Exxxx-M series are  
highly accurate, low current consumption Voltage  
High accuracy detection voltage:  
Detector IC series. Because the counter timer delay  
circuit is built into those series, an external capacitor for  
the delay time setting is unnecessary. The lineup was  
established with two output types (Nch open drain and  
CMOS output) and detection voltages range from 2.3V  
to 4.8V in increments of 0.1V, so that the series may be  
selected according to application.  
Ultra-low current consumption:  
Operating temperature range:  
Three internal, fixed delay time:  
0.85µA (Typ.)  
-40°C to +105°C  
50ms  
100ms  
200ms  
Package  
SSOP5  
2.90mm x 2.80mm x 1.25mm  
Features  
Counter Timer Built-in  
No delay time setting capacitor required  
Ultra-low current consumption  
Applications  
Circuits using microcontrollers or logic circuits that require  
a reset.  
Two output types (Nch open drain and CMOS output)  
Package SSOP5 is similar to SOT-23-5 (JEDEC)  
Typical Application Circuit  
VDD1  
VDD1  
VDD2  
RL  
Micro  
controller  
Micro  
controller  
BD46Exxxx-M  
RST  
BD45Exxxx-M  
RST  
CL  
CL  
Noise-filtering  
Capacitor)  
Noise-filtering  
Capacitor)  
GND  
GND  
Open Drain Output Type)  
CMOS Output Type)  
BD46Exxxx-M series  
BD45Exxxx-M series  
Connection Diagram  
Pin Descriptions  
SSOP5  
VDD  
VOUT  
PIN No.  
Symbol  
ER  
Function  
1
2
3
4
5
Manual Reset  
Substrate *  
SUB  
GND  
VOUT  
VDD  
GND  
Reset Output  
Power Supply Voltage  
Lot. No  
Marking  
ER SUB GND  
*Connect the substrate to GND.  
Product structureSilicon monolithic integrated circuit This product is not designed for protection against radioactive rays  
.www.rohm.com  
TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
© 2013 ROHM Co., Ltd. All rights reserved.  
1/14  
TSZ2211114001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Ordering Information  
B
D
x
x
E
x
x
x
x
-
M
T
R
Part  
Number  
Output Type  
45 : Open Drain  
46 : CMOS  
Reset Voltage Value Counter Timer  
23 : 2.3V  
Package  
Delay Time Settings G : SSOP5  
0.1V step 5 : 50ms  
Automotive Accessories Packaging and  
forming specification  
TR : Embossed tape  
and reel  
48 : 4.8V  
1 : 100ms  
2 : 200ms  
SSOP5  
<Tape and Reel information>  
°
°
+
2.9±0.2  
6
°
4
Tape  
Embossed carrier tape  
3000pcs  
4  
5
4
Quantity  
TR  
Direction  
of feed  
The direction is the 1pin of product is at the upper right when you hold  
reel on the left hand and you pull out the tape on the right hand  
(
)
1
2
3
1pin  
+0.05  
0.03  
0.13  
S
+0.05  
0.04  
0.42  
0.1  
0.95  
S
Direction of feed  
Reel  
Order quantity needs to be multiple of the minimum quantity.  
(Unit : mm)  
Lineup  
Table 1. Open Drain Output Type  
Counter Timer Delay Time Settings  
50ms  
100ms  
Part  
200ms  
Detection  
Voltage  
Part  
Part  
Marking  
Marking  
Marking  
Number  
Number  
Number  
4.8V  
4.7V  
4.6V  
4.5V  
4.4V  
4.3V  
4.2V  
4.1V  
4.0V  
3.9V  
3.8V  
3.7V  
3.6V  
3.5V  
3.4V  
3.3V  
3.2V  
3.1V  
3.0V  
2.9V  
2.8V  
2.7V  
2.6V  
2.5V  
2.4V  
2.3V  
a2  
a1  
Yy  
Yr  
Yp  
Yn  
Ym  
Yk  
Yh  
Yg  
Yf  
Ye  
Yd  
Yc  
Yb  
Ya  
Uy  
Ur  
Up  
Un  
Um  
Uk  
Uh  
Ug  
Uf  
BD45E485  
BD45E475  
BD45E465  
BD45E455  
BD45E445  
BD45E435  
BD45E425  
BD45E415  
BD45E405  
BD45E395  
BD45E385  
BD45E375  
BD45E365  
BD45E355  
BD45E345  
BD45E335  
BD45E325  
BD45E315  
BD45E305  
BD45E295  
BD45E285  
BD45E275  
BD45E265  
BD45E255  
BD45E245  
BD45E235  
d1  
c9  
c8  
c7  
c6  
c5  
c4  
c3  
c2  
c1  
b9  
b8  
b7  
b6  
b5  
b4  
b3  
b2  
b1  
a9  
a8  
a7  
a6  
a5  
a4  
a3  
BD45E481  
BD45E471  
BD45E461  
BD45E451  
BD45E441  
BD45E431  
BD45E421  
BD45E411  
BD45E401  
BD45E391  
BD45E381  
BD45E371  
BD45E361  
BD45E351  
BD45E341  
BD45E331  
BD45E321  
BD45E311  
BD45E301  
BD45E291  
BD45E281  
BD45E271  
BD45E261  
BD45E251  
BD45E241  
BD45E231  
f9  
f8  
f7  
f6  
f5  
f4  
f3  
f2  
f1  
e9  
e8  
e7  
e6  
e5  
e4  
e3  
e2  
e1  
d9  
d8  
d7  
d6  
d5  
d4  
d3  
d2  
BD45E482  
BD45E472  
BD45E462  
BD45E452  
BD45E442  
BD45E432  
BD45E422  
BD45E412  
BD45E402  
BD45E392  
BD45E382  
BD45E372  
BD45E362  
BD45E352  
BD45E342  
BD45E332  
BD45E322  
BD45E312  
BD45E302  
BD45E292  
BD45E282  
BD45E272  
BD45E262  
BD45E252  
BD45E242  
BD45E232  
Ue  
www.rohm.com  
TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
© 2013 ROHM Co., Ltd. All rights reserved.  
2/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Lineup - continued  
Table 2. CMOS Output Type  
Counter Timer Delay Time Settings  
100ms  
50ms  
200ms  
Part  
Detection  
Voltage  
Part  
Part  
Marking  
Marking  
Marking  
Number  
Number  
Number  
4.8V  
4.7V  
4.6V  
4.5V  
4.4V  
4.3V  
4.2V  
4.1V  
4.0V  
3.9V  
3.8V  
3.7V  
3.6V  
3.5V  
3.4V  
3.3V  
3.2V  
3.1V  
3.0V  
2.9V  
2.8V  
2.7V  
2.6V  
2.5V  
2.4V  
2.3V  
k8  
k7  
k6  
k5  
k4  
k3  
k2  
k1  
h9  
h8  
h7  
h6  
h5  
h4  
h3  
h2  
h1  
g9  
g8  
g7  
g6  
g5  
g4  
g3  
g2  
g1  
BD46E485  
BD46E475  
BD46E465  
BD46E455  
BD46E445  
BD46E435  
BD46E425  
BD46E415  
BD46E405  
BD46E395  
BD46E385  
BD46E375  
BD46E365  
BD46E355  
BD46E345  
BD46E335  
BD46E325  
BD46E315  
BD46E305  
BD46E295  
BD46E285  
BD46E275  
BD46E265  
BD46E255  
BD46E245  
BD46E235  
p7  
p6  
p5  
p4  
p3  
p2  
p1  
n9  
n8  
n7  
n6  
n5  
n4  
n3  
n2  
n1  
m9  
m8  
m7  
m6  
m5  
m4  
m3  
m2  
m1  
k9  
BD46E481  
BD46E471  
BD46E461  
BD46E451  
BD46E441  
BD46E431  
BD46E421  
BD46E411  
BD46E401  
BD46E391  
BD46E381  
BD46E371  
BD46E361  
BD46E351  
BD46E341  
BD46E331  
BD46E321  
BD46E311  
BD46E301  
BD46E291  
BD46E281  
BD46E271  
BD46E261  
BD46E251  
BD46E241  
BD46E231  
1f  
1e  
1d  
1c  
1b  
1a  
y9  
y8  
y7  
y6  
y5  
y4  
y3  
y2  
y1  
r9  
r8  
r7  
r6  
r5  
r4  
r3  
r2  
r1  
BD46E482  
BD46E472  
BD46E462  
BD46E452  
BD46E442  
BD46E432  
BD46E422  
BD46E412  
BD46E402  
BD46E392  
BD46E382  
BD46E372  
BD46E362  
BD46E352  
BD46E342  
BD46E332  
BD46E322  
BD46E312  
BD46E302  
BD46E292  
BD46E282  
BD46E272  
BD46E262  
BD46E252  
BD46E242  
BD46E232  
p9  
p8  
www.rohm.com  
TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
© 2013 ROHM Co., Ltd. All rights reserved.  
3/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Absolute maximum ratings  
Parameter  
Symbol  
Limits  
-0.3 to +10  
Unit  
Power Supply Voltage  
VDD-GND  
V
Nch Open Drain Output  
CMOS Output  
GND-0.3 to +10  
GND-0.3 to VDD+0.3  
60  
Output Voltage  
VOUT  
V
Output Current  
ER pin Voltage  
Power Dissipation  
IO  
mA  
V
VCT  
Pd  
GND-0.3 to VDD+0.3  
540  
*1,*2  
mW  
°C  
Operating Temperature  
Topr  
Tstg  
-40 to +105  
-55 to +125  
Ambient Storage Temperature  
°C  
*1 Reduced by 5.4mW/°C when used over 25°C.  
*2 When mounted on ROHM standard circuit board (70mm×70mm×1.6mm, glass epoxy board).  
Electrical characteristics (Unless Otherwise Specified Ta=-40 to 105°C)  
Limit  
Typ.  
Parameter  
Symbol  
Condition  
Unit  
Min.  
VDET(T)  
×0.99  
2.475  
2.418  
2.404  
2.970  
2.901  
2.885  
3.267  
3.191  
3.173  
4.158  
4.061  
4.039  
4.752  
4.641  
4.616  
Max.  
VDET(T)  
×1.01  
2.525  
2.584  
2.597  
3.030  
3.100  
3.117  
3.333  
3.410  
3.428  
4.242  
4.341  
4.364  
4.848  
4.961  
4.987  
VDD=HL, RL=470k  
*1  
VDET(T)  
Ta=+25°C  
2.5  
VDET=2.5V  
VDET=3.0V  
VDET=3.3V  
VDET=4.2V  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Ta=+25°C  
-
-
3.0  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Ta=+25°C  
-
-
3.3  
Detection Voltage  
VDET  
V
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Ta=+25°C  
-
-
4.2  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
Ta=+25°C  
-
-
4.8  
-
VDET=4.8V  
Ta=-40°C to 85°C  
Ta=85°C to 105°C  
-
Detection Voltage  
Temperature coefficient  
VDET/  
T  
-40°C to +105°C  
-
±100  
±360 ppm/°C  
VDET(T) VDET(T) VDET(T)  
VDDLHL, RL=470kꢀ  
Hysteresis Voltage  
VDET  
V
×0.03  
45  
×0.05  
50  
×0.08  
55  
BD45EXX5, BD46EXX5  
CL=100pF,  
‘High’ Output  
Delay time  
tPLH  
RL=100kꢀ  
BD45EXX1, BD46EXX1  
BD45EXX2, BD46EXX2  
90  
100  
110  
ms  
*1,*2,*3  
180  
200  
220  
VDD=VDET-0.2V, VER=0V VDET=2.3V to 3.1V  
VDD=VDET-0.2V, VER=0V VDET=2.3V to 3.1V  
VDD=VDET-0.2V, VER=0V VDET=3.2V to 4.2V  
VDD=VDET-0.2V, VER=0V VDET=3.2V to 4.2V  
VDD=VDET-0.2V, VER=0V VDET=4.3V to 4.8V  
VDD=VDET-0.2V, VER=0V VDET=4.3V to 4.8V  
*1  
*1  
*1  
-
-
-
-
-
-
-
-
-
-
-
-
0.70  
0.70  
0.75  
0.75  
0.80  
0.80  
0.75  
0.75  
0.80  
0.80  
0.85  
0.85  
2.10  
2.85  
2.25  
3.00  
2.40  
3.15  
2.25  
4.28  
2.40  
4.50  
2.55  
4.73  
Circuit Current  
when ON  
IDD1  
IDD2  
µA  
µA  
VDD=VDET+0.2V, VER=0V VDET=2.3V to 3.1V *1  
VDD=VDET+0.2V, VER=0V VDET=2.3V to 3.1V  
VDD=VDET+0.2V, VER=0V VDET=3.2V to 4.2V *1  
VDD=VDET+0.2V, VER=0V VDET=3.2V to 4.2V  
VDD=VDET+0.2V, VER=0V VDET=4.3V to 4.8V *1  
VDD=VDET+0.2V, VER=0V VDET=4.3V to 4.8V  
Circuit Current  
when OFF  
VDET(T):Standard Detection Voltage (2.3V to 4.8V, 0.1V step)  
RL :Pull-up resistor to be connected between VOUT and power supply.  
CL :Capacitor to be connected between VOUT and GND.  
*1 Guarantee is Ta=25°C.  
*2 tPLH:VDD=(VDET(T)-0.5V)(VDET(T)+0.5V)  
*3 tPLH:VDD=Please set up the rise up time between VDD=0VDET more than 100µs.  
Attention: Please connect ‘ER’ to the GND when not in use.  
www.rohm.com  
TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
© 2013 ROHM Co., Ltd. All rights reserved.  
4/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Electrical characteristics (Unless Otherwise Specified Ta=-40 to 105°C) – continued  
Limit  
Typ.  
-
-
-
Condition  
Parameter  
Symbol  
Unit  
Min.  
0.95  
1.20  
Max.  
-
-
-
VOL0.4V, RL=470k, Ta=25 to 105°C  
VOL0.4V, RL=470k, Ta=-40 to 25°C  
VDD=4.8V, ISOURCE= 1.0 mA, VDET(2.3V to 4.2V)  
VDD=6.0V, ISOURCE= 1.2 mA, VDET(4.3V to 4.8V)  
VDD=1.2V, ISINK = 0.45 mA  
Operating Voltage Range  
‘High’ Output Voltage (Pch)  
VOPL  
V
V
VDD-0.5  
VOH  
VOL  
VDD-0.5  
-
-
-
-
-
-
0.3  
0.3  
0.1  
-
0.8  
10  
‘Low’Output Voltage (Nch)  
V
VDD=2.4V, ISINK = 1.3 mA, VDET(2.7V to 4.8V)  
VDD=VDS=10V  
Leak Current when OFF  
ER Pin ‘H’ Voltage  
ER Pin ‘L’ Voltage  
Ileak  
VEH  
VEL  
IEL  
*1  
*1  
*1  
-
2.0  
-
-
-
-
1
µA  
V
V
ER Pin Input Current  
-
µA  
VDET(T):Standard Detection Voltage (2.3V to 4.8V, 0.1V step)  
RL :Pull-up resistor to be connected between VOUT and power supply.  
CL :Capacitor to be connected between VOUT and GND.  
*1 Guarantee is Ta=25°C.  
Attention: Please connect ‘ER’ to the GND when not in use.  
www.rohm.com  
© 2013 ROHM Co., Ltd. All rights reserved.  
TSZ2211115001  
TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
5/14  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Block Diagrams  
VDD  
VOUT  
Oscillation  
Circuit Counter  
Timer  
Vref  
GND  
ER  
Fig.1 BD45Exxxx-M Series  
VDD  
Oscillation  
Circuit Counter  
Timer  
VOUT  
Vref  
GND  
ER  
Fig.2 BD46Exxxx-M Series  
www.rohm.com  
© 2013 ROHM Co., Ltd. All rights reserved.  
TSZ2211115001  
TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
6/14  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Typical Performance Curves  
2.0  
20  
15  
10  
5
BD45E281-M】  
BD45E281-M】  
BD46E281-M】  
BD46E281-M】  
1.5  
1.0  
0.5  
0.0  
V
V
DD=2.4V  
DD=1.2V  
2.0  
0
0.0  
0.5  
1.0  
1.5  
2.5  
0
1
2
3
4
5
6
7
8
9 10  
DRAIN-SOURCE VOLTAGE VDS[V]  
VDD SUPPLY VOLTAGE VDD[V]  
Fig.4 “Low” Output Current  
Fig.3 Circuit Current  
7
6
5
4
3
2
1
0
20  
15  
10  
5
BD45E281-M】  
BD46E281-M】  
BD46E281-M】  
VDD=6.0V  
VDD=4.8V  
Ta=25  
Ta=25  
0
0
1
2
3
4
5
6
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5  
DRAIN-SOURCE VOLTAGE VDS[V]  
VDD SUPPLY VOLTAGE VDD[V]  
Fig.5 “High” Output Current  
Fig.6 I/O Characteristics  
www.rohm.com  
TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
© 2013 ROHM Co., Ltd. All rights reserved.  
7/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Typical Performance Curves – continued  
20  
20  
15  
10  
5
BD45E281-M】  
BD45E421-M】  
BD46E281-M】  
BD46E421-M】  
15  
10  
5
0
0
0
1
2
3
4
5
6
7
8
9
10  
0
1
2
3
4
5
6
7
8
9 10  
ER VOLTAGE VER[V]  
ER VOLTAGE VER[V]  
Fig.7 ER Terminal Threshold Voltage  
Fig.8 ER Terminal Input Current  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
5.8  
5.4  
5.0  
4.6  
4.2  
3.8  
3.4  
BD45E421-MBD46E421-M】  
BD45E421-M】  
BD46E421-M】  
Low to hig h(VD ET+VD ET  
)
High to low(VD ET  
)
-40 -20  
0
20  
40  
60  
80  
100  
-40  
0
40  
80  
TEM PERATURE Ta[  
]
TEM PERATURE Ta[  
]
Fig.10 Circuit Current when ON  
(VDET-0.2V)  
Fig.9 Detection Voltage  
Release Voltage  
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TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
© 2013 ROHM Co., Ltd. All rights reserved.  
8/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Typical Performance Curves – continued  
3.0  
2.8  
1.5  
1.0  
0.5  
0.0  
BD45E421-M】  
BD45E421-M】  
BD46E421-M】  
2.6  
2.4  
2.2  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
BD46E421-M】  
-40 -20  
0
20  
40  
60  
80 100  
]
-40 -20  
0
20 40 60 80 100  
TEMPERATURE Ta[  
TEMPERATURE Ta[  
]
Fig.11 Circuit Current when OFF  
Fig.12 Operating Limit Voltage  
50  
40  
30  
20  
10  
0
250  
BD45E282-MBD46E282-M】  
BD45E281-M】  
200  
150  
100  
50  
BD46E281-M】  
BD45E281-MBD46E281-M】  
BD45E285-MBD46E285-M】  
0
-60 -40 -20  
0
20 40 60 80 100 120  
-60 -40 -20  
0
20 40 60 80 100 120  
TEMPERATURE Ta[ ]  
TEMPERATURE Ta[  
]
Fig.13 Output Delay Time  
Fig.14 Output Delay Time  
“Low””High”  
“High””Low”  
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TSZ02201-0R7R0G300110-1-2  
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© 2013 ROHM Co., Ltd. All rights reserved.  
9/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Application Information  
Explanation of Operation  
For both the open drain type (Fig.15) and the CMOS output type (Fig.16), the detection and release voltages are used as  
threshold voltages. When the voltage applied to the VDD pins reaches the applicable threshold voltage, the VOUT terminal  
voltage switches from either “High” to “Low” or from “Low” to “High”. Because the BD45Exxxx-M series uses an open drain  
output type, it is necessary to connect a pull-up resistor to VDD or another power supply if needed [The output “High”  
voltage (VOUT) in this case becomes VDD or the voltage of the other power supply].  
DD  
DD  
V
V
DD  
V
R1  
R2  
R1  
R2  
Q2  
Q1  
Vref  
Vref  
Reset  
OUT  
V
Oscillation  
Circuit Counter  
Timer  
Oscillation  
Circuit Counter  
Timer  
Reset  
OUT  
V
Q1  
R3  
R3  
GND  
GND  
ER  
ER  
Fig.15 (BD45Exxxx-M Type Internal Block Diagram)  
Fig.16 (BD46Exxxx-M Type Internal Block Diagram)  
Reference Data  
Examples of Leading (tPLH) and Falling (tPHL) Output  
Part Number  
BD45E275G-M  
BD46E275G-M  
tPLH[ms]  
tPHL[µs]  
50  
50  
18  
18  
VDD=2.2V3.2V  
VDD=3.2V2.2V  
*This data is for reference only.  
The figures will vary with the application, so please confirm actual operating conditions before use.  
Timing Waveform  
Example: The following shows the relationship between the input voltages VDD, the output voltage VOUT and ER terminal when  
the input power supply voltage VDD is made to sweep up and sweep down (the circuits are those in Fig. 15 and 16).  
1
When the power supply is turned on, the output is unstable  
VDD  
VDET+ΔVDET  
from after over the operating limit voltage (VOPL) until tPHL  
.
Therefore it is possible that the reset signal is not outputted when  
VDET  
VDD  
VOUT  
ER  
the rise time of VDD is faster than tPHL  
.
VOPL  
0V  
2
When VDD is greater than VOPL but less than the reset release  
voltage (VDET + VDET), the output voltages will switch to Low.  
VOH  
3
If VDD exceeds the reset release voltage (VDET + VDET), the  
tPLH  
tPLH  
tPLH  
counter timer start and VOUT switches from L to H.  
tPHL  
VOL  
VEH  
4
When more than the high level voltage is supplied ER terminal,  
tPHL  
VOUT comes to “L” after tPLH delay time. Therefore, a time when ER  
terminal is “H” is necessary for 100µsec or more.  
5
tPHL  
When the ER terminal switches to Low, the counter timer starts  
to operate, a delay of tPLH occurs, and VOUT switches from “L” to  
“H”.  
④ ⑤  
6
If VDD drops below the detection voltage (VDET) when the power  
supply is powered down or when there is a power supply  
fluctuation, VOUT switches to L (with a delay of tPHL).  
Fig.17 Timing Waveform  
7
The potential difference between the detection voltage and the  
release voltage is known as the hysteresis width (VDET). The  
system is designed such that the output does not toggle with  
power supply fluctuations within this hysteresis width, thus,  
preventing malfunctions due to noise.  
Timing may change depending on application and use. Please verify and confirm using practical applications.  
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TSZ02201-0R7R0G300110-1-2  
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© 2013 ROHM Co., Ltd. All rights reserved.  
10/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Circuit Applications  
1) Examples of a common power supply detection reset circuit.  
Application examples of BD45Exxxx-M series (Open  
Drain output type) and BD46Exxxx-M series (CMOS  
output type) are shown below.  
VDD1  
VDD2  
RL  
Micro  
controller  
BD45Exxxx-M  
RST  
CASE1: Power supply of microcontroller (VDD2) differs  
from the power supply of the reset detection (VDD ).  
1
CL  
Use an open drain output Type (BD45xx series) device  
with a load resistance RL as shown Fig.18.  
Noise-filtering  
Capacitor)  
GND  
CASE2: Power supply of the microcontroller (VDD1) is  
same as the power supply of the reset detection (VDD1).  
Use a CMOS output type (BD46Exxxx-M) device or an  
open drain output type (BD45Exxxx-M) with a pull up  
Fig.18 Open Drain Output Type  
VDD1  
resistor between the output and VDD1  
.
Micro  
controller  
BD46Exxxx-M  
RST  
When a capacitance CL for noise filtering is connected to  
the VOUT pin (the reset signal input terminal of the  
microcontroller), please take into account the waveform  
of the rise and fall of the output voltage (VOUT).  
CL  
Noise-filtering  
Capacitor)  
GND  
Fig.19 CMOS Output Type  
2) The following is an example of a circuit application in which an OR connection between two types of detection voltage  
resets the microcontroller.  
VDD1  
VDD2  
VDD3  
RL  
Micro  
controller  
BD45Exxxx-M  
BD45Exxxx-M  
RST  
GND  
Fig. 20  
To reset the microcontroller when many independent power supplies are used in the system, OR connect an open drain  
output type (BD45Exxxx-M series) to the microcontroller’s input with pull-up resistor to the supply voltage of the  
microcontroller (VDD3) as shown in Fig. 20. By pulling-up to VDD3, output “High” voltage of micro-controller power supply is  
possible.  
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TSZ02201-0R7R0G300110-1-2  
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TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
3) Examples of the power supply with resistor dividers.  
In applications wherein the power supply voltage of an IC comes from a resistor divider circuit, an in-rush current will flow  
into the circuit when the output level switches from “High” to “Low” or vice versa. In-rush current is a sudden surge of current  
that flows from the power supply (VDD) to ground (GND) as the output logic changes its state. This current flow may cause  
malfunction in the systems operation such as output oscillations, etc.  
V1  
R2  
I1  
VDD  
BD45Exxxx-M  
BD46Exxxx-M  
R1  
VOUT  
CIN  
CL  
GND  
Fig. 21  
When an in-rush current (I1) flows into the circuit (Refer to Fig. 21) at the time when output switches from “Low” to “High”,  
a voltage drop of I1×R2 (input resistor) will occur in the circuit causing the VDD supply voltage to decrease. When the VDD  
voltage drops below the detection voltage, the output will switch from “High” to “Low”. While the output voltage is at “Low”  
condition, in-rush current will stop flowing and the voltage drop will be reduced. As a result, the output voltage will switches  
again from “Low” to “High” which causes an in-rush current and a voltage drop. This operation repeats and will result to  
oscillation.  
IDD  
In-rush Current  
VDD  
0
VDET  
Fig. 22 Current Consumption vs. Power Supply Voltage  
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TSZ02201-0R7R0G300110-1-2  
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12/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Operational Notes  
1) Absolute maximum ratings  
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit  
between pins or an open circuit between pins. Therefore, it is important to consider circuit protection measures, such  
as adding a fuse, in case the IC is operated over the absolute maximum ratings.  
2) Ground Voltage  
The voltage of the ground pin must be the lowest voltage of all pins of the IC at all operating conditions. Ensure that no  
pins are at a voltage below the ground pin at any time, even during transient condition.  
3) Recommended operating conditions  
These conditions represent a range within which the expected characteristics of the IC can be approximately obtained.  
The electrical characteristics are guaranteed under the conditions of each parameter.  
4) Bypass Capacitor for Noise Rejection  
To help reject noise, put a 1uF capacitor between VDD pin and GND and 1000pF capacitor between VOUT pin and GND.  
Be careful when using extremely big capacitor as transient response will be affected.  
5) Short between pins and mounting errors  
Be careful when mounting the IC on printed circuit boards. The IC may be damaged if it is mounted in a wrong  
orientation or if pins are shorted together. Short circuit may be caused by conductive particles caught between the pins.  
6) Operation under strong electromagnetic field  
Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction.  
7) The VDD line impedance might cause oscillation because of the detection current.  
8) A VDD to GND capacitor (as close connection as possible) should be used in high VDD line impedance condition.  
9) Lower than the mininum input voltage puts the VOUT in high impedance state, and it must be VDD in pull up (VDD)  
condition.  
10) This IC has extremely high impedance terminals. Small leak current due to the uncleanness of PCB surface might  
cause unexpected operations. Application values in these conditions should be selected carefully. If the leakage of  
about 1Mis assumed between the ER terminal and the GND terminal, 100kconnection between the ER terminal  
and the VDD terminal would be recommended. If the leakage is assumed between the VOUT terminal and the GND  
terminal, the pull-up resistor should be less than 1/10 of the assumed leak resistance.  
11) External parameters  
The recommended parameter range for RL is 50k  
to 1M. There are many factors (board layout, etc) that can affect  
characteristics. Please verify and confirm using practical applications.  
12) Power on reset operation  
Please note that the power on reset output varies with the VDD rise time. Please verify the behavior in the actual  
operation.  
13) Testing on application boards  
When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject  
the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should  
always be turned off completely before connecting or removing it from the test setup during the inspection process. To  
prevent damage from static discharge, ground the IC during assembly and use similar precautions during transport and  
storage.  
14) Rush current  
When the power supply, is turned on because of in certain cases, momentary Rash-current flow into the IC at the logic  
unsettled, the couple capacitance, GND pattern of width and leading line must be considered.  
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TSZ02201-0R7R0G300110-1-2  
23.May.2013 Rev.003  
© 2013 ROHM Co., Ltd. All rights reserved.  
13/14  
TSZ2211115001  
Datasheet  
BD45Exxxx-M series BD46Exxxx-M series  
Revision History  
Date  
Revision  
001  
Changes  
20.Nov.2012  
New Release  
Change the value of “Counter Timer Delay” from 5ms to 50ms in Table1 and Table2.  
Change unit of Operating Limit Voltage graph from uA to V in Typical Performance  
Curve.  
18.Dec.2012  
23.May.2013  
002  
003  
Change limits for VDET at VDET=2.5V,3.0V,3.3V,4.2V,4.8V  
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TSZ02201-0R7R0G300110-1-2  
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14/14  
TSZ2211115001  
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Daattaasshheeeett  
Notice  
General Precaution  
1. Before you use our Products, you are requested to carefully read this document and fully understand its contents.  
ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any  
ROHM’s Products against warning, caution or note contained in this document.  
2. All information contained in this document is current as of the issuing date and subject to change without any prior  
notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales  
representative.  
Precaution on using ROHM Products  
1. If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment,  
aircraft/spacecraft, nuclear power controllers, etc.) and whose malfunction or failure may cause loss of human life,  
bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales  
representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way  
responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any  
ROHM’s Products for Specific Applications.  
2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor  
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate  
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which  
a failure or malfunction of our Products may cause. The following are examples of safety measures:  
[a] Installation of protection circuits or other protective devices to improve system safety  
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure  
3. Our Products are not designed under any special or extraordinary environments or conditions, as exemplified below.  
Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the  
use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our  
Products under any special or extraordinary environments or conditions (as exemplified below), your independent  
verification and confirmation of product performance, reliability, etc, prior to use, must be necessary:  
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents  
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust  
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,  
H2S, NH3, SO2, and NO2  
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves  
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items  
[f] Sealing or coating our Products with resin or other coating materials  
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of  
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning  
residue after soldering  
[h] Use of the Products in places subject to dew condensation  
4. The Products are not subject to radiation-proof design.  
5. Please verify and confirm characteristics of the final or mounted products in using the Products.  
6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,  
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power  
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect  
product performance and reliability.  
7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual  
ambient temperature.  
8. Confirm that operation temperature is within the specified range described in the product specification.  
9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in  
this document.  
Notice - Rev.004  
© 2013 ROHM Co., Ltd. All rights reserved.  
Daattaasshheeeett  
Precaution for Mounting / Circuit board design  
1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product  
performance and reliability.  
2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the  
ROHM representative in advance.  
For details, please refer to ROHM Mounting specification  
Precautions Regarding Application Examples and External Circuits  
1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the  
characteristics of the Products and external components, including transient characteristics, as well as static  
characteristics.  
2. You agree that application notes, reference designs, and associated data and information contained in this document  
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely  
responsible for it and you must exercise your own independent verification and judgment in the use of such information  
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses  
incurred by you or third parties arising from the use of such information.  
Precaution for Electrostatic  
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper  
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be  
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,  
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).  
Precaution for Storage / Transportation  
1. Product performance and soldered connections may deteriorate if the Products are stored in the places where:  
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2  
[b] the temperature or humidity exceeds those recommended by ROHM  
[c] the Products are exposed to direct sunshine or condensation  
[d] the Products are exposed to high Electrostatic  
2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period  
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is  
exceeding the recommended storage time period.  
3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads  
may occur due to excessive stress applied when dropping of a carton.  
4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of  
which storage time is exceeding the recommended storage time period.  
Precaution for Product Label  
QR code printed on ROHM Products label is for ROHM’s internal use only.  
Precaution for Disposition  
When disposing Products please dispose them properly using an authorized industry waste company.  
Precaution for Foreign Exchange and Foreign Trade act  
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,  
please consult with ROHM representative in case of export.  
Precaution Regarding Intellectual Property Rights  
1. All information and data including but not limited to application example contained in this document is for reference  
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any  
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable  
for infringement of any intellectual property rights or other damages arising from use of such information or data.:  
2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any  
third parties with respect to the information contained in this document.  
Notice - Rev.004  
© 2013 ROHM Co., Ltd. All rights reserved.  
Daattaasshheeeett  
Other Precaution  
1. The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all  
information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or  
liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or  
concerning such information.  
2. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.  
3. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written  
consent of ROHM.  
4. In no event shall you use in any way whatsoever the Products and the related technical information contained in the  
Products or this document for any military purposes, including but not limited to, the development of mass-destruction  
weapons.  
5. The proper names of companies or products described in this document are trademarks or registered trademarks of  
ROHM, its affiliated companies or third parties.  
Notice - Rev.004  
© 2013 ROHM Co., Ltd. All rights reserved.  
配单直通车
BD45E282G-MTR产品参数
型号:BD45E282G-MTR
是否Rohs认证:符合
生命周期:Active
IHS 制造商:ROHM CO LTD
包装说明:LSSOP, TSOP5/6,.11,37
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
风险等级:2.26
Is Samacsys:N
其他特性:2.8V AS DETECTION VOLTAGE, OPERATING VOLTAGE MIN IS 1.20V FOR -40 TO 25 DEG CELSIUS
可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G5
长度:2.9 mm
信道数量:1
功能数量:1
端子数量:5
最高工作温度:105 °C
最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY
封装代码:LSSOP
封装等效代码:TSOP5/6,.11,37
封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):NOT SPECIFIED
电源:2.4/10 V
认证状态:Not Qualified
座面最大高度:1.25 mm
子类别:Power Management Circuits
最大供电电流 (Isup):0.00428 mA
最小供电电压 (Vsup):0.95 V
表面贴装:YES
技术:CMOS
温度等级:INDUSTRIAL
端子形式:GULL WING
端子节距:0.95 mm
端子位置:DUAL
阈值电压标称:+2.8V
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:1.6 mm
Base Number Matches:1
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