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參數(shù)資料
| 型號： | MAX6499 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 72V, Overvoltage-Protection Switches/Limiter Controllers with an External MOSFET |
| 中文描述： | 72V、過壓保護(hù)開關(guān)/限幅控制器，外置MOSFET |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 359K |
| 代理商： | MAX6499 |
M
72V, Overvoltage-Protection Switches/Limiter
Controllers with an External MOSFET
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
(All pins referenced to GND.)
IN, GATE, GATEP...................................................-0.3V to +80V
SHDN
,
CLEAR
.............................................-0.3V to (V
IN
+ 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 (V
IN
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(V
IN
= 14V, C
GATE
= 6nF, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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.
Continuous Power Dissipation (T
A
= +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
PARAMETER
SYMBOL
V
IN
CONDITIONS
MIN
5.5
TYP
MAX
72.0
150
UNITS
V
Supply Voltage Range
SHDN
= high
SHDN
= low (MAX6497/MAX6498/
MAX6499)
SHDN
= low (MAX6495/MAX6496)
100
15
24
Input Supply Current
I
IN
No load
24
32
μA
IN Undervoltage Lockout
V
IN
rising, enables GATE
4.75
5
5.25
V
IN Undervoltage Lockout
Hysteresis
V
IN
falling, disables GATE
155
mV
V
TH+
V
TH-
OVSET rising
OVSET falling
1.22
1.24
1.18
1.26
OVSET Threshold Voltage
(MAX6495/MAX6496)
V
OVSET Threshold Hysteresis
(MAX6495/MAX6496)
V
HYST
OVSET falling
5
%
V
TH+
V
TH-
V
TH+
V
TH-
V
TH+
V
TH-
OVSET rising
OVSET falling
OVSET rising
OVSET falling
UVSET rising
UVSET falling
0.494
0.505
0.13
1.24
1.18
1.24
1.18
0.518
OVSET Threshold Voltage
(MAX6497/MAX6498)
V
1.22
1.26
OVSET Threshold Voltage
(MAX6499)
V
1.22
1.26
UVSET Threshold Voltage
(MAX6499)
V
OVSET/UVSET Threshold
Hysteresis (MAX6499)
V
HYST
OVSET falling
5
%
V
POKSET+
POKSET rising
V
POKSET-
POKSET falling
1.22
1.24
1.18
1.26
POKSET Threshold Voltage
(MAX6497/MAX6498)
V
POKSET Threshold
Hysteresis (MAX6497/
MAX6498)
V
HYST
POKSET falling
5
%
OVSET, UVSET, POKSET
Input Current
I
SET
-50
+50
nA
Startup Response Time
t
START
SHDN
rising (Note 2)
100
μs
GATE Rise Time
GATE rising from GND to V
OUTFB
+ 8V,
OUTFB = GND
1
ms
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