MAX5074 Maxim Integrated Products, MAX5074 Datasheet - Page 6
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MAX5074
Manufacturer Part Number
MAX5074
Description
Power IC with Integrated MOSFETs
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX5074.pdf
(13 pages)
Power IC with Integrated MOSFETs for Isolated IEEE
802.3af PD and Telecom Power-Supply Applications
(V
V
6
RAMP
HVIN
600
550
500
450
400
350
300
250
200
160
159
158
157
156
155
154
153
152
151
150
_______________________________________________________________________________________
-40
-40
= 48V, V
= V
HVIN RISING
-25 -10 5
-25
UVLO
THRESHOLD vs. TEMPERATURE
CURRENT-LIMIT COMPARATOR
-10 5 20 35 50
R
C
OPERATING FREQUENCY
RTCT
RTCT
R
C
INBIAS
= 3V, T
vs. TEMPERATURE
RTCT
RTCT
= 12kΩ
= 100pF
TEMPERATURE (°C)
TEMPERATURE (°C)
20
= 25kΩ
= 100pF
35 50 65
= 15V, C
A
= T
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
65 80
J
-40
= -40°C to +125°C, unless otherwise noted. Typical values are at T
80
INBIAS
-25
95
95
VOLTAGE vs. TEMPERATURE
-10 5 20 35 50
110
110
FALLING
RISING
FLTINT SHUTDOWN
= 1µF, C
125
125
TEMPERATURE (°C)
REGOUT
33.00
32.75
32.50
32.25
32.00
31.75
31.50
31.25
31.00
Typical Operating Characteristics (continued)
115
114
113
112
111
110
109
108
107
106
105
65 80
-40
-40
-25 -10 5
-25
= 2.2µF, R
95
-10 5 20 35 50
PPWM TO XFRMRL SKEW
110
SOFT-START CURRENT
vs. TEMPERATURE
vs. TEMPERATURE
125
TEMPERATURE (°C)
TEMPERATURE (°C)
20
RTCT
35 50 65
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
= 25kΩ, C
65 80
-40
80
-25
95
95
-10 5 20 35 50
POWER MOSFETS R
110
110
RTCT
vs. TEMPERATURE
125
125
TEMPERATURE (°C)
= 100pF, C
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
85
84
83
82
81
80
79
78
77
76
75
65 80
A
-40
-40
= +25°C, unless otherwise noted.)
DS(ON)
FLTINT CURRENT vs. TEMPERATURE
MINIMUM RCFF AND OPTO LEVELS
-25 -10 5
-25
BST
95
-10 5 20 35 50
= 0.22µF, V
110
vs. TEMPERATURE
OPTO
RCFF
125
TEMPERATURE (°C)
TEMPERATURE (°C)
20
35 50 65
CSS
www.DataSheet4U.com
65 80
= V
80
CS
95
95
110
110
= 0V,
125
125