MAX4271 Ver la hoja de datos (PDF) - Maxim Integrated
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componentes Descripción
Fabricante
MAX4271 Datasheet PDF : 26 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. VGATE
1.8
1.6
VIN = 12V
1.4
VIN = 3V
1.2
VIN = 5V
1.0
0.8
0.6
0.4
0.2
0
0 2 4 6 8 10 12 14 16 18 20
VIN (V)
GATE VOLTAGE vs. INPUT VOLTAGE
25
IGATE = 10μA
20
TA = +85°C
15
TA = +25°C
10
TA = -40°C
5
0
0 2 4 6 8 10 12 14
VIN (V)
FAST GATE DISCHARGE CURRENT
vs. VIN
4.0
RISING VIN
3.5
3.0
2.5
2.0
1.5
FALLING VIN
1.0
3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0
VIN (V)
GATE CHARGE CURRENT
vs. GATE VOLTAGE
120
VIN = 12V
100
80
VIN = 3.0V
60
VIN = 5.0V
40
20
0
0 2 4 6 8 10 12 14 16 18 20
VGATE (V)
SLOW GATE DISCHARGE CURRENT
vs. GATE VOLTAGE
400
350
VIN = 3V
300
250
200
150
VIN = 5V
VIN = 12V
100
50
TRIGGERED BY A FAULT
OR BY ON FALLING
0
0 2 4 6 8 10 12 14 16 18 20
VGATE (V)
SLOW GATE DISCHARGE CURRENT
vs. TEMPERATURE
400
350
VIN = 3V
300
250
200
150
VIN = 5V, 12V
100
VGATE = VIN
50 TRIGGERED BY A FAULT
OR BY ON FALLING
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
GATE CHARGE CURRENT
vs. TEMPERATURE
150
125
VIN = 12V
VGATE = 0
100
75
VIN = 5V
50
VIN = 3V
25
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
TIME TO CHARGE GATE
vs. CGATE
1000
NO EXTERNAL MOSFET
100
VIN = 12V
10
TO VGATE = 17V
1
VIN = 5V
TO VGATE = 10V
0.1
VIN = 3V
0.01
TO VGATE = 6V
0.001
0.01 0.1
1
10
CGATE (nF)
100 1000
TIME TO SLOW DISCHARGE GATE
vs. CGATE
1000
NO EXTERNAL MOSFET
100 DISCHARGE TO VGATE = 0.1V
10
VIN = 12V
1
VIN = 5V
0.1
0.01
0.001
0.01 0.1
VIN = 3V
1
10
CGATE (nF)
100 1000
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