MAX6397 MAXIM [Maxim Integrated Products], MAX6397 Datasheet - Page 3

• Manufacturer Part Number: MAX6397
• Description: Overvoltage Protection Switch/Limiter Controllers Operate Up to 72V
• Manufacturer: MAXIM [Maxim Integrated Products]

ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
Note 2: The MAX6397/MAX6398 power up with the external FET in off mode (V
Note 3: For accurate overtemperature shutdown performance, place the device in close thermal contact with the external MOSFET.
Note 4: Dropout voltage is defined as V
Note 5: Operations beyond the thermal dissipation limit may permanently damage the device.
REG Output Voltage
(V
Dropout Voltage (Note 4)
Current Limit
Overvoltage-Protection Threshold
O ver vol tag e- P r otecti on S i nk C ur r ent
Line Regulation (Note 5)
Load Regulation
Power-Supply Rejection Ratio
Startup Response Time
POK Assertion Threshold
(MAX6397 Only)
REG to POK Delay
POK Leakage Current
POK Output Low Voltage
IN
IN
= 14V; C
≥ V
REG
device is powered up and all input conditions are valid.
PARAMETER
GATE
+ 1.8V)
= 6000pF, C
_______________________________________________________________________________________
Overvoltage Protection Switch/Limiter
REG
= 4.7µF, T
SYMBOL
V
∆ V
∆VREG /
IN
∆IREG
t
∆V
POK_TH
∆V
V
START
V
I
V
OVP
REG
OVP
- V
REG
OL
REG
A
DO
REG
= T
/
J
when V
= -40°C to +125°C, unless otherwise noted. Typical values are at T
Controllers Operate Up to 72V
MAX6397L/M
MAX6397S/T
MAX6397Y/Z
MAX6397V/W
5.5V ≤ V
5.5V ≤ V
V
V
6.5V ≤ V
5.5V ≤ V
5.5V ≤ V
1mA ≤ I
I
R
L
M
T
S
Z
Y
W
V
V
V
V
REG
IN
REG
REG
REG
POK
IN
= 14V
≥ 1.5V, I
= 10mA, f = 100Hz, 0.5V
= 1.1 x V
rising or falling
= 5V
= 500Ω, V
REG
REG
IN
IN
IN
IN
IN
is 2% below the value of V
≤ 72V, I
≤ 72V, I
≤ 72V, I
≤ 72V, I
≤ 72V, I
SINK
≤ 100mA, V
REG
CONDITIONS
REG
= 1.6mA, POK asserted
REG
REG
REG
REG
REG
I
1mA < I
I
1mA < I
I
1mA < I
I
1mA < I
(nominal)
REG
REG
REG
REG
= 5V, C
= 1mA, V
= 100mA, V
= 10mA, V
= 1mA, V
= 100mA, V
REG
= 1mA
= 1mA
= 1mA
= 1mA
REG
REG
REG
REG
GATE
REG
= 5V
P-P
< 100mA
< 100mA
< 100mA
< 100mA
REG
REG
= GND). The external FET turns on t
= 4.7µF
REG
REG
REG
REG
= 5V
= 5V
= 5V
= 5V
= 5V
for V
IN
1.760
1.715
4.925
3.243
3.201
2.456
4.500
4.230
2.966
2.805
2.250
2.125
1.590
1.524
= V
MIN
4.85
2.41
150
REG
(nominal) + 2V.
4.375
3.053
2.892
2.304
2.188
1.653
1.575
TYP
4.67
105
180
1.8
1.5
3.3
2.5
15
55
35
5
A
= T
J
3. 360
5.120
3.360
2.542
1.837
1.837
4.780
4.500
3.140
2.970
2.375
2.250
1.696
1.625
= +25°C.) (Note 1)
MAX
0.22
0.05
5.15
2.55
0.12
300
100
START
1.2
0.8
0.3
after the
mV/mA
mV/mA
UNITS
mV/V
V
% of
mA
mA
dB
REG
nA
µs
µs
V
V
V
3