BD45231 ROHM [Rohm], BD45231 Datasheet - Page 4
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BD45231
Manufacturer Part Number
BD45231
Description
Counter Timer Built-in CMOS Voltage Detector IC
Manufacturer
ROHM [Rohm]
Datasheet
1.BD45231.pdf
(10 pages)
Reference Data (Unless specified otherwise, Ta=25°C)
© 2009 ROHM Co., Ltd. All rights reserved.
BD45□□□G, BD46□□□G series
www.rohm.com
Fig.9 Detection Voltage
5.8
5.4
5.0
4.6
4.2
3.8
3.4
3.0
1.5
1.0
0.5
0.0
Fig.12 Operating Limit Voltage
2.0
1.5
1.0
0.5
0.0
7
6
5
4
3
2
1
0
-40
-40
~
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
0
Fig.6 I/O Characteristics
Release Voltage
V
1
V
-20
Fig.3 Circuit Current
DD
DD
Ta=25 ℃
TEMPERATURE : Ta[ ℃ ]
TEMPERATURE : Ta[ ℃ ]
Low to high(V
2
SUPPLY VOLTAGE : V
SUPPLY VOLTAGE : V
0
0
3
4
20
High to low(V
5
Ta=25 ℃
DET
40
40
【 BD45421G 】
【 BD45421G 】
【 BD45421G 】
【 BD45281G 】
6
+ΔV
7
60
DET
DET
DD
)
8
DD
80
)
[V]
80
[V]
9 10
100
Fig.7 ER Terminal Threshold Voltage
20
15
10
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
250
200
150
100
Fig.10 Circuit Current when ON
5
0
50
20
15
10
0
5
0
-40
0
-60 -40 -20
0.0
Fig.4 “Low” Output Current
Fig.13 Output Delay Time
DRAIN-SOURCE VOLTAGE : V
1
-20
2
TEMPERATURE : Ta[ ℃ ]
0.5
TEMPERATURE : Ta[ ℃ ]
ER VOLTAGE : VER[V]
“Low””High”
0
3
(V
4/9
0
DET
4
1.0
20
20
5
-0.2V)
40 60 80 100 120
40
【 BD45281G 】
【 BD45421G 】
【 BD4528 □ G 】
1.5
【 BD46281G 】
6
V
V
7
60
BD45282G
BD45281G
BD45285G
DD
DD
=2.4V
=1.2V
2.0
8
80
DS
9 10
[V]
100
2.5
Fig.11 Circuit Current when OFF
20
15
10
Fig.8 ER Terminal Input Current
3.0
2.8
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
50
40
30
20
10
20
15
10
5
0
0
5
0
-60 -40 -20
Fig.5 “High” Output Current
-40 -20
0
0
Fig.14 Output Delay Time
DRAIN-SOURCE VOLTAGE : V
1
1
TEMPERATURE : Ta[ ℃ ]
TEMPERATURE : Ta[ ℃ ]
2
ER VOLTAGE : V
“High””Low”
0
3
0
2
4
20
20 40 60
Technical Note
2009.05 - Rev.C
【 BD45281G t
3
5
40
【 BD45421G 】
【 BD46281G 】
【 BD45421G 】
6
4
ER
V
60
7
V
[V]
DD
DD
80 100 120
=4.8V
=6.0V
8
PHL
5
80
DS
】
9 10
[V]
100
6