參數(shù)資料
型號(hào): LTC1473
廠商: Linear Technology Corporation
英文描述: Dual Power Management Switch Driver(雙電源管理開關(guān)驅(qū)動(dòng)器)
中文描述: 雙電源管理開關(guān)驅(qū)動(dòng)器(雙電源管理開關(guān)驅(qū)動(dòng)器)
文件頁(yè)數(shù): 3/16頁(yè)
文件大?。?/td> 199K
代理商: LTC1473
3
LTC1473
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
DC Supply Current
vs Supply Voltage
SUPPLY VOLTAGE (V)
0
S
μ
A
80
120
40
1473 G01
40
0
10
20
30
5
15
25
35
160
60
100
20
140
V
DIODE
= V
IN1
= 5V
V
IN2
= 0V
V
DIODE
= 5V
V
IN1
IN2
= 0V
V
SENSE+
= V
SENSE–
= V
+
DC Supply Current vs V
SENSE
DC Supply Current
vs Temperature
TEMPERATURE (
°
C)
–50
50
S
μ
A
60
80
90
100
0
140
1473 G02
70
–25
25
50
75
100
125
110
120
130
V
+
= 20V
V
DIODE
= V
IN1
= 5V
V
IN2
= 0V
V
DIODE
= 5V
V
IN1
= V
IN2
= 0V
V
GS
Gate-to-Source ON Voltage
vs Temperature
TEMPERATURE (
°
C)
–50
5.1
V
G
5.2
5.4
5.5
5.6
0
6.0
1473 G04
5.3
–25
25
50
75
100
125
5.7
5.8
5.9
V
+
= V
SAB
=20V
TEMPERATURE (
°
C)
–50
1.0
S
1.5
2.5
3.0
3.5
0
5.5
1473 G05
2.0
–25
25
50
75
100
125
4.0
4.5
5.0
START-UP
THRESHOLD
SHUTDOWN
THRESHOLD
Undervoltage Lockout Threshold (V
+
)
vs Temperature
Note 4:
Gate turn-on and turn-off times are measured with no inrush
current limiting, i.e., V
SENSE
= 0V. Gate rise times are measured from 1V to
4.5V and fall times are measured from 4.5V to 1V. Delay times are
measured from the input transition to when the gate voltage has risen or
fallen to 3V.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formula:
T
J
= T
A
+ (P
D
)(150
°
C/W)
Note 3:
I
S
increases by the same amount as I
BSENSE+
+ I
BSENSE–
when
their common mode falls below 5V.
ELECTRICAL CHARACTERISTICS
V
GS
Gate Supply Voltage
vs Temperature
TEMPERATURE (
°
C)
–50
8.1
V
G
8.2
8.4
8.5
8.6
0
9.0
1473 G03
8.3
–25
25
50
75
100
125
8.7
8.8
8.9
V
+
= 20V
V
GS =
V
GG
– V
+
|V
SENSE
| COMMON MODE(V)
0
S
μ
A
20
1473 TPC02.5
5
10
15
2.5
7.5
12.5
17.5
500
450
400
350
300
250
200
150
100
V
+
= 20V
V
DIODE
= V
IN1
= 5V
V
= 0V
V
SENSE+
– V
SENIN2
= 0V
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