
MAX5074
Power IC with Integrated MOSFETs for Isolated IEEE
802.3af PD and Telecom Power-Supply Applications
_______________________________________________________________________________________ 5
REGOUT VOLTAGE vs. TEMPERATURE
MAX5074 toc04
TEMPERATURE (°C)
V
REGOUT
(V)
11095-25 -10 5 35 50 6520 80
8.625
8.650
8.675
8.700
8.725
8.750
8.775
8.800
8.600
-40 125
V
HVIN
= 76V
INBIAS FLOATING
REGOUT VOLTAGE vs. INPUT VOLTAGE
MAX5074 toc05
V
HVIN
(V)
V
REGOUT
(V)
63503724
8.67
8.69
8.71
8.73
8.75
8.65
11 76
INBIAS FLOATING
REGOUT UVLO VOLTAGE
vs. TEMPERATURE
MAX5074 toc06
TEMPERATURE (°C)
REGOUT UVLO VOLTAGE (V)
1109580655035205-10-25
6.25
6.50
6.75
7.00
7.25
7.50
6.00
-40 125
RISING
FALLING
REGOUT VOLTAGE vs. LOAD CURRENT
MAX5074 toc07
I
REGOUT
(mA)
V
REGOUT
(V)
252015105
8.60
8.65
8.70
8.75
8.55
030
V
HVIN
= 15V
INBIAS FLOATING
HVIN AND INBIAS INPUT CURRENT
vs. TEMPERATURE
MAX5074 toc08
TEMPERATURE (°C)
I
HVIN
(mA)
1109565 80-10 5 20 35 50-25
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
-40 125
I
INBIAS
V
HVIN
= V
INBIAS
= 76V
I
HVIN
V
HVIN
= V
INBIAS
= 76V
REGOUT VOLTAGE vs. TEMPERATURE
MAX5074 toc09
TEMPERATURE (°C)
V
REGOUT
(V)
1109565 80-10 5 20 35 50-25
10.51
10.52
10.53
10.54
10.55
10.56
10.57
10.58
10.59
10.60
10.50
-40 125
V
HVIN
= V
INBIAS
= 76V
REGOUT VOLTAGE vs. INPUT VOLTAGE
MAX5074 toc10
V
HVIN
(V)
V
REGOUT
(V)
63503724
10.52
10.54
10.56
10.58
10.60
10.50
11 76
HVIN = INBIAS
REGOUT VOLTAGE vs. LOAD CURRENT
MAX5074 toc11
I
REGOUT
(mA)
V
REGOUT
(V)
252015105
10.45
10.50
10.55
10.60
10.40
030
V
HVIN
= V
INBIAS
= 15V
Typical Operating Characteristics (continued)
(V
HVIN
= 48V, V
INBIAS
= 15V, C
INBIAS
= 1µF, C
REGOUT
= 2.2µF, R
RTCT
= 25kΩ, C
RTCT
= 100pF, C
BST
= 0.22µF, V
CSS
= V
CS
= 0V,
V
RAMP
= V
UVLO
= 3V, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C, unless otherwise noted.)
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