BU48XXG_11 Datasheet, PDF (3/9 Pages) Rohm – Low Voltage Standard CMOS Voltage Detector ICs

BU48□□G Series, BU48□□F Series, BU48□□FVE Series,
BU49□□G Series, BU49□□F Series, BU49□□FVE Series
Technical Note
●Electrical characteristics (Unless Otherwise Specified Ta=-25 to 125℃)
Parameter
Symbol
Condition
V_DET =0.9-1.3V
V_DET =1.4-2.1V
Circuit Current when ON
IDD1
VDD=VDET-0.2V
V_DET =2.2-2.7V
V_DET =2.8-3.3V
V_DET =3.4-4.2V
V_DET =4.3-4.8V
V_DET =0.9-1.3V
V_DET =1.4-2.1V
Circuit Current when OFF
IDD2
VDD=VDET+2.0V
V_DET =2.2-2.7V
V_DET =2.8-3.3V
V_DET =3.4-4.2V
V_DET =4.3-4.8V
Operating Voltage Range
VOPL
VOL≤0.4V, Ta=25~125℃, RL=470kΩ
VOL≤0.4V, Ta=-40~25℃, RL=470kΩ
VDS=0.05V VDD=0.85V
‘Low’ Output Current (Nch)
IOL
VDS=0.5V VDD=1.5V VDET=1.7-4.8V
VDS=0.5V VDD=2.4V VDET=2.7-4.8V
‘High’ Output Current (Pch)
(only BU49□□G/F/FVE)
IOH
VDS=0.5V VDD=4.8V
VDS=0.5V VDD=6.0V
Output Leak Current when
OFF
(only BU48□□G/F/FVE)
Ileak
VDD=VDS=7V
Ta=-40℃~85℃
VDD=VDS=7V
Ta=85℃~125℃
* This product is not designed for protection against radioactive rays.
VDET=0.9-3.9V
VDET=4.0-4.8V
Min.
-
-
-
-
-
-
-
-
-
-
-
-
0.70
0.90
20
1.0
3.6
1.7
2.0
-
-
Limit
Typ.
0.15
0.20
0.25
0.30
0.35
0.40
0.30
0.35
0.40
0.45
0.50
0.55
-
-
100
3.3
6.5
3.4
4.0
0
0
Max.
Unit
0.88
1.05
1.23
1.40
µA
1.58
1.75
1.40
1.58
1.75
1.93
µA
2.10
2.28
-
-
V
-
µA
-
-
mA
-
-
mA
0.1
µA
1
●Block Diagrams
BU48□□G/F/FVE
VDD
BU49□□G/F/FVE
VDD
Vref
VOUT
Vref
VOUT
GND
Fig.1
TOP VIEW
TOP VIEW
GND
Fig.2
TOP VIEW
PIN No.
1
2
3
4
5
SSOP5
Symbol
VOUT
VDD
GND
N.C.
N.C.
Function
Reset output
Power supply voltage
GND
Unconnected terminal
Unconnected terminal
PIN No.
1
2
3
4
SOP4
Symbol
VOUT
VDD
N.C.
GND
Function
Reset output
Power supply voltage
Unconnected terminal
GND
VSOF5
PIN No.
1
2
3
4
5
Symbol
VOUT
SUB
N.C.
VDD
GND
Function
Reset output
Substrate*
Unconnected terminal
Power supply voltage
GND
*Connect the substrate to VDD
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2011.03 - Rev.D