MAX4272(2001) Просмотр технического описания (PDF) - Maxim Integrated
Номер в каталоге
Компоненты Описание
производитель
MAX4272
(Rev.:2001)
(Rev.:2001)
Maxim Integrated
MAX4272 Datasheet PDF : 24 Pages
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3V to 12V Current-Limiting Hot Swap Controllers
with Autoretry, DualSpeed/BiLevel Fault Protection
Typical Operating Characteristics (continued)
(VIN = 5V, RSENSE = 100mΩ, CBOARD = 47µF, TA = +25°C, unless otherwise noted.)
FAST GATE DISCHARGE CURRENT
vs. TEMPERATURE
2.4
VIN = 3V
2.2
VGATE = VIN
2.0
1.8
MAX4271/MAX4272
TURN-OFF TIME (CBOARD = 470µF)
MAX4271/3-19
ON
ILOAD
(1A/div)
0
MAX4271/MAX4272
TURN-OFF TIME
(EXTERNAL CGATE = 22nF, CBOARD = 470µF)
MAX4271/3-20
ON
VGATE
2V/div
ILOAD
1A/div
0
1.6
1.4
VIN = 5V, 12V
1.2
1.0
-40 -15
10
35
60
85
TEMPERATURE (°C)
MAX4273
TURN-OFF TIME
(EXTERNAL CGATE = 22nF, CBOARD = 470µF)
MAX4271/3-20a
VOUT
(2V/div)
0
VGATE
(2V/div)
50µs/div
CBOARD = 470µF, RSENSE = 100mΩ,
CGATE = 0
MAX4273
TURN-OFF TIME
(CBOARD = 470µF)
MAX4271/3-20b
ON
ON
VGATE
2V/div
ILOAD
1A/div
VGATE
2V/div
ILOAD
1A/div
VOUT
2V/div
0
200µs/div
CBOARD = 470µF, RSENSE = 100mΩ,
CGATE = 22nF, RS = 0
ON COMPARATOR THRESHOLD
vs. INPUT VOLTAGE
0.605
0.603
RISING
VOUT
2V/div
0
VOUT
2V/div
0
0.601
0.599
FALLING
0
20µs/div
0.6100
ON-COMPARATOR THRESHOLD
vs. TEMPERATURE
0.6075
0.6050
VIN = 12V
0.6025
0.6000
0.5975
VIN = 3V
VIN = 5V
}
}
0.5950
-40 -15
10
35
60
85
TEMPERATURE (°C)
0
50µs/div
UVLO THRESHOLD VOLTAGE
vs. TEMPERATURE
2.60
2.55
RISING
2.50
2.45
FALLING
2.40
2.35
2.30
-40 -15
10
35
60
85
TEMPERATURE (°C)
0.597
0.595
0 2 4 6 8 10 12 14
VIN (V)
UVLO DELAY vs. TEMPERATURE
160
155
VIN = 5V, 12V
VIN = 3V
150
145
140
-40 -15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________ 7
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