MAX6399 查看數據表（PDF） - Maxim Integrated
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MAX6399 Datasheet PDF : 10 Pages
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High-Voltage, Overvoltage/Undervoltage,
Protection Switch Controller
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 14V; CGATE = 6000pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
OUT_SET Hysteresis
OUT_SET to POK Delay
POK Output Voltage Low
POK Leakage Current
VOUT_SET rising or falling
VOL
VIN ≥ 1.5V, ISINK = 3.2mA, POK asserted
VOUT_SET = 1.4V
5
% VTH
(OUT_SET)
35
µs
0.45
V
100
nA
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: The MAX6399 powers up with the external FET in off mode (VGATE = GND). The external FET turns on tSTART after the
device is powered up and all input conditions are valid.
Note 3: For accurate overtemperature shutdown performance, place the device in close thermal contact with the external MOSFET.
(VIN = 14V, CGATE = 6nF, unless otherwise noted.)
Typical Operating Characteristics
SUPPLY CURRENT vs. INPUT VOLTAGE
150
140
GATE ON
130
120
110
100
90
80
70
60
50
40
0
20
40
60
80
INPUT VOLTAGE (V)
UVLO THRESHOLD vs. TEMPERATURE
6.0
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
SUPPLY CURRENT
vs. INPUT VOLTAGE
20
18 GATE OFF
16
14
12
10
8
6
4
2
0
0
20
40
60
80
INPUT VOLTAGE (V)
SET THRESHOLD
vs. TEMPERATURE
510
508
506
504
502
500
498
496
494
492
490
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
GATE-DRIVE VOLTAGE
vs. INPUT VOLTAGE
12
VOUT = VIN
10
8
6
4
2
0
4 6 8 10 12 14 16 18 20 22 24
INPUT VOLTAGE (V)
OUT_SET THRESHOLD
vs. TEMPERATURE
1.26
1.25
OUT_SET RISING
1.24
1.23
1.22
1.21
1.20
1.19
1.18
OUT_SET FALLING
1.17
1.16
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
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