參數(shù)資料
型號(hào)： 34710
廠商： Motorola, Inc.
英文描述： Adjustable Dual Output Switching Power Supply
中文描述： 可調(diào)雙輸出開關(guān)電源
文件頁(yè)數(shù)： 6/16頁(yè)
文件大?。?/td> 518K
代理商： 34710
34710
6
Go to: www.freescale.com
STATIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions 4.75 V
≤
V
IO
≤
5.25 V, 12 V
≤
V
B
+
≤
32 V, and 0
°
C
≤
T
J
≤
105
°
C unless otherwise noted.
Typical values noted reflect the approximate parameter mean at T
A
= 25
°
C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
V
I/O
SWITCHING REGULATOR
Logic Supply Voltage (I
VI/O
= 25 mA to 1.0 A)
MODE0 = 0
MODE0 = Open
V
I/O
4.8
3.15
–
–
5.2
3.45
V
Logic Supply Current
V
I/O
= Nominal, Power Dissipation in Switching Regulator = 0.45 W
I
VI/O
0.025
–
1.0
A
Output On Resistance
V
B
+
= 12 V to 32 V
R
DS(ON)
0.5
TBD
2.0
Soft Start Threshold Voltage
MODE0 = X
V
I/O
(
SOFT
)
–
–
2.5
V
Current Limit Threshold (T
J
= 25
°
C to 100
°
C)
Normal Operation
Soft Start, V
I/O
≤
2.5 V
I
LIMIT
(
OP
)
I
LIMIT
(
SOFT
)
2.1
1.3
–
–
3.2
1.8
A
Minimum Voltage Allowable on V
SWITCH
Terminal
T
J
= 25
°
C to 100
°
C
V
VSWITCH
(
MIN
)
-0.5
–
–
V
V
CORE
LINEAR REGULATOR
Supply Voltage (I
VCORE
= 5.0 mA to 500 mA) (Note 10)
MODE[2:0] = [0,x,0]
MODE[2:0] = [0,x,Open]
MODE[2:0] = [Open,x,0]
MODE[2:0] = [Open,x,Open]
V
CORE
(
NOM
)
3.15
2.35
1.71
1.425
–
–
–
–
3.45
2.65
1.89
1.575
V
Supply Current
V
CORE
= V
CORE
(
NOM
)
I
VCORE
1.0
–
500
mA
V
CORE
Dropout Voltage
V
CORE
= V
CORE
(
NOM
), I
VCORE
= 0.5 A
I
VCORE
(
DROPOUT
)
0.8
–
–
V
Regulator Input Voltage
V
CORE
= V
CORE
(
NOM
), I
VCORE
= 0.5 A
V
LINB
+
V
CORE
(
NOM
)
+ 1.0
–
10
V
Normal Current Limit Threshold
T
J
= 25°C to 100°C, V
LINB
+
= V
CORE
(
NOM
) + 1.0 V
I
LIMIT
800
–
1000
mA
Notes
10.
Refer to
Table 1
, page 10.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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