MAX1838(2001) 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 (continued)
(Circuit of Figure 2, VIN_ = 5V, TA = +25°C, unless otherwise noted.)
FAULT-BLANKING TIME vs. TEMPERATURE
20.5
20.0
19.5 VAUX = 4.5V
19.0
VAUX = 5.0V
VAUX = 5.5V
18.5
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
AUTORESET CURRENT vs. TEMPERATURE
40
35
VIN = VAUX = 5.5V
30
25
20
VIN = VAUX = 4.5V
15
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
AUTORESET CURRENT vs. INPUT VOLTAGE
35
30
25
20
AUX = IN,
SEL = ON = GND
15
10
5
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
OVERLOAD RESPONSE INTO 2.5Ω LOAD
MAX1838 toc13
OVERLOAD RESPONSE INTO 2.5Ω LOAD
(EXPANDED TIME SCALE)
MAX1838 toc14
5V
VOUT_
0
5V
VFAULT_
0
5V
VOUT_
0
5V
VFAULT_
0
10ms/div
0.5A/div
IOUT_ 0.5A/div
0
SHORT-CIRCUIT RESPONSE INTO 0Ω
MAX1838 toc15
5V
VOUT_
0
5V
VFAULT_
0
1A
0.5A
IOUT_
0
10ms/div
1ms/div
0.5A/div
IOUT_
0
SHORT-CIRCUIT RESPONSE INTO 0Ω
(EXPANDED TIME SCALE)
MAX1838 toc16
5V
VOUT_
0
5V
VFAULT_
0
1A
0.5A
IOUT_
0
1ms/div
6 _______________________________________________________________________________________
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