Rainbow Electronics MAX5074 - Manual (Page 5)

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)
110 95 -25 -10 5 35 50 65 20 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)
63 50 37 24
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)
110 95 80 65 50 35 20 5 -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)
25 20 15 10 5
8.60
8.65
8.70
8.75
8.55
0 30
V HVIN = 15V
INBIAS FLOATING
HVIN AND INBIAS INPUT CURRENT
vs. TEMPERATURE
MAX5074 toc08
TEMPERATURE ( °C)
I HVIN
(mA)
110 95 65 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)
110 95 65 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)
63 50 37 24
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)
25 20 15 10 5
10.45
10.50
10.55
10.60
10.40
0 30
V HVIN = V INBIAS = 15V
Typical Operating Characteristics (continued)
(V
HVIN
= 48V, V
INBIAS
= 15V, C
INBIAS
= 1µF, C
REGOUT
= 2.2µF, R
RTCT
= 25k Ω, 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.)