MAX6495 Ver la hoja de datos (PDF) - Maxim Integrated
Número de pieza
componentes Descripción
Fabricante
MAX6495
Maxim Integrated
MAX6495 Datasheet PDF : 16 Pages
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MAX6495–MAX6499
72V, Overvoltage-Protection
Switches/Limiter Controllers
with an External MOSFET
Absolute Maximum Ratings
(All pins referenced to GND.)
IN, GATE, GATEP..................................................-0.3V to +80V
SHDN, CLEAR............................................-0.3V to (VIN + 0.3V)
POK, OUTFB..........................................................-0.3V to +80V
GATE to OUTFB.....................................................-0.3V to +12V
GATEP to IN...........................................................-12V to +0.3V
OVSET, UVSET, POKSET.....................................-0.3V to +12V
Current Sink/Source (All Pins)............................................50mA
All Other Pins to GND.................................-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (TA = +70°C)
6-Pin TDFN (derate 18.2mW/°C above +70°C).........1455mW
8-Pin TDFN (derate 18.2mW/°C above +70°C).........1455mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -60°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)........................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(VIN = 14V, CGATE = 6nF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
Supply Voltage Range
Input Supply Current
IN Undervoltage Lockout
IN Undervoltage Lockout
Hysteresis
OVSET Threshold Voltage
(MAX6495/MAX6496)
OVSET Threshold Hysteresis
(MAX6495/MAX6496)
OVSET Threshold Voltage
(MAX6497/MAX6498)
OVSET Threshold Voltage
(MAX6499)
UVSET Threshold Voltage
(MAX6499)
OVSET/UVSET Threshold
Hysteresis (MAX6499)
POKSET Threshold Voltage
(MAX6497/MAX6498)
POKSET Threshold
Hysteresis (MAX6497/
MAX6498)
SYMBOL
VIN
IIN
CONDITIONS
SHDN = high
No load
SHDN = low (MAX6497/MAX6498/
MAX6499)
SHDN = low (MAX6495/MAX6496)
VIN rising, enables GATE
VIN falling, disables GATE
VTH+
VTH-
OVSET rising
OVSET falling
VHYST OVSET falling
VTH+
VTH-
VTH+
VTH-
VTH+
VTH-
OVSET rising
OVSET falling
OVSET rising
OVSET falling
UVSET rising
UVSET falling
VHYST OVSET falling
VPOKSET+ POKSET rising
VPOKSET- POKSET falling
VHYST POKSET falling
OVSET, UVSET, POKSET
Input Current
Startup Response Time
GATE Rise Time
ISET
tSTART
SHDN rising (Note 2)
GATE rising from GND to VOUTFB + 8V,
OUTFB = GND
MIN
5.5
4.75
1.22
0.494
1.22
1.22
1.22
-50
TYP
100
15
24
5
155
1.24
1.18
5
0.505
0.13
1.24
1.18
1.24
1.18
5
1.24
1.18
5
100
1
MAX
72.0
150
UNITS
V
24
µA
32
5.25
V
mV
1.26
V
%
0.518
V
1.26
V
1.26
V
%
1.26
V
%
+50
nA
µs
ms
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