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
(VIN = 5V, RSENSE = 100mΩ, CBOARD = 47µF, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. INPUT VOLTAGE
1.0
0.9
0.8
ON = VIN
0.7
IGATE = 10μA
0.6
0.5
0.4
0.3
ON = GND
0.2
0.1
0
0 2 4 6 8 10 12 14
VIN (V)
SUPPLY CURRENT vs. TEMPERATURE
1.0
ON = VIN
0.9
0.8
VIN = 12V
0.7
VIN = 5V
0.6
0.5
0.4
0.3
VIN = 3V
0.2
0.1
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
SLOW COMPARATOR
RESPONSE TIME vs. INPUT VOLTAGE
MAX4271/3-03
240
24
230
23
CSPD = 110nF
TIME IN ms
220
22
210
21
200
20
CSPD = 0
TIME IN μs
190
19
180
18
0 2 4 6 8 10 12 14
VIN (V)
SLOW COMPARATOR THRESHOLD
vs. INPUT VOLTAGE
51.0
50.8
TA = +25°C
50.6
TA = -40°C
50.4
50.2
50.0
49.8
49.6
TA = +85°C
49.4
49.2
49.0
0 2 4 6 8 10 12 14
VIN (V)
FAST COMPARATOR THRESHOLD
vs. INPUT VOLTAGE
210
208
206
204
TA = -40°C
202
TA = +25°C
200
198
196
TA = +85°C
194
192
190
0 2 4 6 8 10 12 14
VIN (V)
FAST COMPARATOR RESPONSE TIME
vs. OVERDRIVE VOLTAGE
450
400
VIN = 12V
350
300
VIN = 3V
250
VIN = 5V
200
1
10
100
1000
OVERDRIVE VOLTAGE (mV)
TIME TO FAST DISCHARGE GATE
vs. CGATE
100k
NO EXTERNAL MOSFET
10k DISCHARGE TO VGATE = 0.1V
1k
VIN = 12V
100
VIN = 5V
10
1
VIN = 3V
0.1
0.01 0.1
1
10
CGATE (nF)
100 1000
FAST COMPARATOR RESPONSE TIME
vs. TEMPERATURE
500
450
400
VIN = 12V
350
300
VIN = 5V
250
VIN = 3V
200
-40 -15 10
35
60
85
TEMPERATURE (°C)
STARTUP PERIOD
vs. INPUT VOLTAGE
350
35 MAX4271/3-09
CTIM = 100nF
330
TIME IN ms
33
310
31
290
CTIM = 1nF
TIME IN μs
29
270
27
250
25
0 2 4 6 8 10 12 14
VIN (V)
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