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.)
GATE CHARGE CURRENT
vs. GATE VOLTAGE
120
VIN = 12V
100
GATE CHARGE CURRENT
vs. TEMPERATURE
150
125
VIN = 12V
VGATE = 0
GATE VOLTAGE vs. INPUT VOLTAGE
25
IGATE = 10µA
20
TA = +85°C
80
VIN = 3.0V
60
40
20
VIN = 5.0V
100
75
VIN = 5V
50
VIN = 3V
25
15
TA = +25°C
10
TA = -40°C
5
0
0
400
2 4 6 8 10 12 14 16 18 20
VGATE (V)
GATE DISCHARGE CURRENT
vs. GATE VOLTAGE
350
VIN = 3V
300
250
0
-40 -15 -10 35
60
85
TEMPERATURE (°C)
0
0 2 4 6 8 10 12 14
VIN (V)
GATE DISCHARGE CURRENT
vs. TEMPERATURE
400
350
VIN = 3V
300
250
START-UP TIME (CBOARD = 470µF)
MAX4370-15
ON
ILOAD
(1A/div)
VGATE
(2V/div)
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)
START-UP TIME (CBOARD = 0)
MAX4370-16
ON
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)
START-UP TIME
(EXTERNAL CGATE = 22nF, CBOARD = 470µF)
MAX4370-17
ON
VOUT
(2V/div)
500µs/div
CBOARD = 470µF, RSENSE = 100mΩ,
CTIM = 10nF, CGATE = 0
TURN-OFF TIME (CBOARD = 470µF)
MAX4370-18
ON
VGATE
(2V/div)
ILOAD
(1A/div)
VGATE
(2V/div)
ILOAD
(1A/div)
0A
VOUT
(2V/div)
VOUT
(2V/div)
VOUT
(2V/div)
100µs/div
CBOARD = 0, RSENSE = 100mΩ,
CTIM = 10nF, CGATE = 0
1ms/div
CBOARD = 470µF, RSENSE = 100mΩ,
CGATE = 22nF, CTIM = 10nF, RS = 0
0V
50µs/div
CBOARD = 470µF, RSENSE = 100mΩ,
CGATE = 0
VGATE
(2V/div)
_______________________________________________________________________________________ 5
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