max5079eudt Maxim Integrated Products, Inc., max5079eudt Datasheet - Page 5
max5079eudt
Manufacturer Part Number
max5079eudt
Description
Max5079 Oring Mosfet Controller With Ultra-fast 200ns Turn-off
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX5079EUDT.pdf
(18 pages)
100
(T
90
80
70
60
50
40
30
20
10
80
78
76
74
72
70
68
66
64
62
60
0
A
0
0
= +25°C, unless otherwise noted. See the Typical Operating Circuit.)
SLOW-COMPARATOR BLANKING TIME
75mV OVERDRIVE
1
0.1
t
2 3 4 5 6
CHARGE-PUMP FREQUENCY
STH
0.2 0.3 0.4
vs. C
vs. INPUT VOLTAGE
STH
C
T
STH
V
A
T
7 8
IN
0.5 0.6 0.7
= +25°C
A
(R
(V)
= +125°C
(µF)
_______________________________________________________________________________________
STH
T
9
A
= +85°C
= 180kΩ)
10 11
T
A
= -40°C
0.8
12
13
0.9
14
1.0
15
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
ORing MOSFET Controller with
FAST-COMPARATOR REVERSE VOLTAGE
1
Typical Operating Characteristics (continued)
0
GATE-CHARGE CURRENT vs. C
20
THRESHOLD (V
40
T
A
= +125°C
60
R
C
FTH
Ultra-Fast 200ns Turn-Off
EXT
10
(kΩ)
(nF)
FTH
80
vs. R
T
100
A
T
= +85°C
A
= -40°C
FTH
120
V
IN
)
EXT
= 12V
140
100
80
72
64
56
48
40
32
24
16
8
0
-40
V
V
R
UVLO = IN
FAST-COMPARATOR RESPONSE TIME
V
V
IN
AUXIN
STH
V
AUXIN
IN
-25
IN
= 5V, V
= 5V, V
= 2.75V,
= OPEN, R
FAULT CURRENT WAVEFORM
-10 5 20 35 50
= 0V, C
= 12V
(IN SHORTED TO PGND)
BUS
AUXIN
STH
TEMPERATURE (°C)
= 5V,
FTH
= 0V
= 0,
= 0,
400ns/div
V
IN
= 1V, V
65 80
V
AUXIN
V
AUXIN
IN
95
MAX5079 toc09
= 12V,
= 5V
110
= 0V
125
MOSFET REVERSE
CURRENT
5A/div
BUS
5V/div
GATE
10V/div
IN
5V/div
5