MAX5941 Maxim, MAX5941 Datasheet - Page 9

• Manufacturer Part Number: MAX5941
• Description: IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices
• Manufacturer: Maxim

(V
Typical values are at T
voltages are referenced to V- (for graphs 12–30 in the Typical Operating Characteristics), unless otherwise noted.)
IN
= (GND - V
IEEE 802.3af-Compliant Power-Over-Ethernet
Interface/PWM Controller for Power Devices
1.40
1.39
1.38
1.37
1.36
1.35
1.34
1.33
1.32
1.31
10.4
10.2
10.0
EE
48.0
47.9
47.8
47.7
47.6
47.5
47.4
47.3
47.2
47.1
47.0
9.8
9.6
9.4
9.2
9.0
) = 48V, GATE = PGOOD = PGOOD = OUT = OPEN, UVLO = V
0
0
0
_______________________________________________________________________________________
DRIVER POWERED
FROM V+
A
V
MAXIMUM DUTY CYCLE vs. V
5
CC
= +25°C. All voltages are referenced to V
20
VOLTAGE vs. V
V+ SUPPLY CURRENT
10
5
vs. V+ VOLTAGE
V
V
CC
V
V+ VOLTAGE (V)
40
OPTO
15
OPTO
CURRENT (mA)
V
DRIVER POWERED
FROM V
V+ = 67V, OPTO = CS = V-
DD
= 4V, CS = V
= 4V, CS = V-
10
20
V
DD
(V)
60
= 36V
CC
25
DD
CURRENT
V
DD
80
DD
15
30
= 13V
= V-
DD
35
Typical Operating Characteristics (continued)
100
20
40
EE
(for graphs 1–11 in the Typical Operating Characteristics), all
10.2
10.1
10.0
10.0
9.9
9.8
9.7
9.6
9.5
12
10
9.9
9.8
9.7
9.6
9.5
9.4
9.3
9.2
9.1
9.0
8
6
4
2
0
EE
0
0
0
V
, V
DD
10 20
V+ INPUT CURRENT vs. VOLTAGE
V
DD
= OPTO = CS = V-
5
CC
VOLTAGE vs. V
= 13V, NDRV floating, T
10
30
5
(AFTER STARTUP)
V
OPTO
V
DEVICE POWERED
FROM V+
DEVICE POWERED FROM V
40
V+ VOLTAGE (V)
CC
V
V+ = 67V
15
CC
CURRENT (mA)
= 4V, CS = V-, V
50 60 70 80 90
V
DD
vs. V
20
10
(V)
V+ = 48V
CC
DD
25
CURRENT
V+ = 36V
15
30
DD
V+ = 24V
= 13V
35
DD
100
A
110
40
20
= T
MIN
to T
MAX
9
.