MAX1838 查看數據表（PDF） - Maxim Integrated
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MAX1838 Datasheet PDF : 12 Pages
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Dual USB Switch with Fault Blanking
and Autoreset
Typical Operating Characteristics
(Circuit of Figure 2, VIN_ = 5V, TA = +25°C, unless otherwise noted.)
AUX QUIESCENT CURRENT vs. VAUX
70
VIN = 5V
60
VIN = 4.5V
50 SEL = GND
VIN = 0
VIN = 5.5V
40
30
20
10
0
0
1
2
3
4
5
VAUX (V)
IN + AUX QUIESCENT CURRENT
vs. TEMPERATURE
110
SEL = GND
100
VIN = VAUX = 5.5V
90
VIN = VAUX = 5V
80
70
-40 -20
VIN = VAUX = 4.5V
0 20 40 60 80
TEMPERATURE (°C)
NORMALIZED SWITCH ON-RESISTANCE
vs. TEMPERATURE
1.3
1.2
1.1
IOUT_ = 500mA
1.0
0.9
0.8
0.7
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
IN QUIESCENT CURRENT vs. VAUX
30
25
SEL = AUX
20
VIN = 5.5V
VIN = 5V
15
VIN = 4.5V
10
5
0
0
1
2
3
4
5
VAUX (V)
IN + AUX QUIESCENT SHUTDOWN CURRENT
vs. TEMPERATURE
10.0
9.5
VIN = VAUX = 5.0V
9.0
VIN = VAUX = 4.5V
8.5
8.0
7.5
7.0
6.5
VIN = VAUX = 5.5V
6.0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
CONTINUOUS CURRENT LIMIT THRESHOLD
vs. TEMPERATURE
0.94
0.92
0.90
0.88
0.86
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
IN + AUX QUIESCENT CURRENT
vs. TEMPERATURE
100
SEL = AUX = IN
90
VAUX = 5.5V
80
VAUX = 5V
VAUX = 4.5V
70
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
SWITCH LEAKAGE CURRENT
vs. TEMPERATURE, FULL DATA
1000
100
IN = AUX = SEL = ON = GND
VOUT_ = 5.5V
10
VIN = VAUX = VON = VSEL = 5.5V
OUT_ = GND
1
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
TURN-ON DELAY vs. TEMPERATURE
2.3
SEL = GND
2.2
2.1 VIN = VAUX = 5.0V
2.0
VIN = VAUX = 4.5V
1.9
VIN = VAUX = 5.5V
1.8
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
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