MAX5941 Maxim, MAX5941 Datasheet - Page 15

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

Figure 4. MAX5941A/MAX5941B PWM Controller Functional Diagram
26mV/µs
MAX5941A ONLY
IEEE 802.3af-Compliant Power-Over-Ethernet
V
V+
V-
OPTO
SS_SHDN
0.4V
DD
COMPENSATION
Interface/PWM Controller for Power Devices
26mV/µs
SLOPE
∑
______________________________________________________________________________________
IN
EN
2.4V
REGULATOR
VOLTAGE
HIGH-
OUT
PWM
DUTY CYCLE
80%/50%
CLAMP
OSCILLATOR
275kHz
EN
REGULATOR
WINDING
BIAS
4µA
OUT
BUF
IN
Vb
6.6V
0.7V
BLANKING
ILIM
3R
UVLO
70ns
S
R
R
V
DD
125mV
-
Q
OK
5kΩ
NDRV
V
CS
CC
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