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參數(shù)資料
| 型號： | BU4947F-TR |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4 |
| 封裝： | ROHS COMPLIANT, SOP-4 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 277K |
| 代理商： | BU4947F-TR |
Technical Note
3/8
BU48□□G Series, BU48□□F Series, BU48□□FVE Series,
BU49□□G Series, BU49□□F Series, BU49□□FVE Series
www.rohm.com
2011.03 - Rev.D
2011 ROHM Co., Ltd. All rights reserved.
●
Electrical characteristics (Unless Otherwise Specified Ta=-25 to 125℃)
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
A
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
A
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℃, RL=470k
0.70
-
V
VOL≤0.4V, Ta=-40~25℃, RL=470k
0.90
-
‘Low’ Output Current (Nch)
IOL
VDS=0.05V VDD=0.85V
20
100
-
A
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
3.6
6.5
-
‘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℃~85℃
-
0
0.1
A
VDD=VDS=7V
Ta=85℃~125℃
-
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
3
N.C.
Unconnected terminal
3
N.C.
Unconnected terminal
4
N.C.
Unconnected terminal
4
GND
4
VDD
Power supply voltage
5
N.C.
Unconnected terminal
5
GND
*Connect the substrate to VDD
Vref
VOUT
VDD
GND
Vref
VOUT
VDD
GND
TOP VIEW
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