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BU4848F-TR Datasheet(PDF) 3 Page - Rohm

No. de pieza BU4848F-TR
Descripción Electrónicos  Low Voltage Standard CMOS Voltage Detector IC Series
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Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BU4848F-TR Datasheet(HTML) 3 Page - Rohm

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Technical Note
3/8
BU48
□□G, BU48□□F, BU48□□FVE, BU49□□G, BU49□□F, BU49□□FVE series
www.rohm.com
2009.06 - Rev.C
© 2009 ROHM Co., Ltd. All rights reserved.
 Electrical characteristics (Unless Otherwise Specified Ta=-25 to 125°C)
Parameter
Symbol
Condition
Limit
Unit
Min.
Typ.
Max.
Circuit Current when ON
IDD1
VDD=VDET-0.2V
VDET =0.9-1.3V
-
0.15
0.88
µA
VDET =1.4-2.1V
-
0.20
1.05
VDET =2.2-2.7V
-
0.25
1.23
VDET =2.8-3.3V
-
0.30
1.40
VDET =3.4-4.2V
-
0.35
1.58
VDET =4.3-4.8V
-
0.40
1.75
Circuit Current when OFF
IDD2
VDD=VDET+2.0V
VDET =0.9-1.3V
-
0.30
1.40
µA
VDET =1.4-2.1V
-
0.35
1.58
VDET =2.2-2.7V
-
0.40
1.75
VDET =2.8-3.3V
-
0.45
1.93
VDET =3.4-4.2V
-
0.50
2.10
VDET =4.3-4.8V
-
0.55
2.28
Operating Voltage Range
VOPL
VOL
≤0.4V, Ta=25~125°C, RL=470kΩ
0.70
-
-
V
VOL
≤0.4V, Ta=-40~25°C, RL=470kΩ
0.90
-
-
‘Low’ Output Current (Nch)
IOL
VDS=0.05V
VDD=0.85V
20
100
-
µA
VDS=0.5V
VDD=1.5V
VDET=1.7-4.8V
1.0
3.3
-
mA
VDS=0.5V
VDD=2.4V
VDET=2.7-4.8V
4.0
7.2
-
‘High’ Output Current (Pch)
(only BU49
□□G/F/FVE)
IOH
VDS=0.5V
VDD=4.8V
VDET=0.9-3.9V
1.7
3.4
-
mA
VDS=0.5V
VDD=6.0V
VDET=4.0-4.8V
2.0
4.0
-
Output Leak Current when
OFF
(only BU48
□□G/F/FVE)
Ileak
VDD=VDS=7V
Ta=-40°C~85°C
-
0
0.1
µA
VDD=VDS=7V
Ta=85°C~125°C
-
0
1
* This product is not designed for protection against radioactive rays.
 Block Diagrams
BU48
□□G/F/FVE
BU49
□□G/F/FVE
Fig.1
Fig.2
SSOP5
SOP4
VSOF5
PIN No.
Symbol
Function
PIN No.
Symbol
Function
PIN No.
Symbol
Function
1
VOUT
Reset output
1
VOUT
Reset output
1
VOUT
Reset output
2
VDD
Power supply voltage
2
VDD
Power supply voltage
2
SUB
Substrate*
3
GND
GND
3
N.C.
Unconnected terminal
3
N.C.
Unconnected terminal
4
N.C.
Unconnected terminal
4
GND
GND
4
VDD
Power supply voltage
5
N.C.
Unconnected terminal
5
GND
GND
*Connect the substrate to VDD
Vref
VOUT
VDD
GND
Vref
VOUT
VDD
GND
TOP VIEW
TOP VIEW
TOP VIEW


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