MAX4370 데이터 시트보기 (PDF) - Maxim Integrated
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MAX4370
Maxim Integrated
MAX4370 Datasheet PDF : 16 Pages
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Current-Regulating Hot-Swap Controller with
DualSpeed/BiLevel Fault Protection
Typical Operating Characteristics (continued)
(Circuit of Figure 7, VIN = 5V, RSENSE = 100mΩ, M1 = FDS6670A, CBOARD = 470µF, CGATE = 0, RS = 0, TA = +25°C, unless other-
wise noted.)
VGATE
(2V/div)
VOUT
(2V/div)
0V
TURN-OFF TIME (CBOARD = 0)
MAX4370-19
TURN-OFF TIME
(EXTERNAL CGATE = 22nF, CBOARD = 470µF)
MAX4370-20
ON
ILOAD
VGATE
(1A/div) (2V/div)
0A
ON
ILOAD
(1A/div)
0A
VOUT
(2V/div)
0V
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
50µs/div
CBOARD = 0, RSENSE = 100mΩ,
CGATE = 0, RS = 0
TIME TO DISCHARGE GATE
vs. CGATE
1000
NO EXTERNAL MOSFET
100 DISCHARGE TO VGATE=0.1V
10
VIN = 12V
1
VIN = 5V
0.1
0.01
VIN = 3V
200µs/div
CBOARD = 470µF, RSENSE = 100mΩ,
CGATE = 22nF, RS = 0
ON COMPARATOR THRESHOLD
vs. INPUT VOLTAGE
0.605
0.603
RISING
0.601
0.599
FALLING
0.597
0.001
0.01 0.1
1
10
CGATE (nF)
100 1000
0.6100
ON COMPARATOR THRESHOLD
vs. TEMPERATURE
0.6075
0.6050
VIN = 12V
0.6025
0.6000
0.5975
VIN = 3V
VIN = 5V
}
}
0.001
0.01 0.1
1
10
CGATE (nF)
100 1000
0.595
0 2 4 6 8 10 12 14
VIN (V)
0.5950
-40 -15
10
35
60
85
TEMPERATURE (°C)
UVLO THRESHOLD VOLTAGE
vs. TEMPERATURE
2.60
UVLO DELAY vs. TEMPERATURE
160
2.55
RISING
2.50
2.45
FALLING
2.40
2.35
155
VIN = 5V & 12V
VIN = 3V
150
145
2.30
-40 -15
10
35
60
85
TEMPERATURE (°C)
140
-40 -15
10
35
60
85
TEMPERATURE (°C)
6 _______________________________________________________________________________________
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