MAX5971A Maxim Integrated Products, MAX5971A Datasheet - Page 10

• Manufacturer Part Number: MAX5971A
• Description: Single-Port 40W IEEE 802.3af/at PSE Controller with Integrated MOSFET
• Manufacturer: Maxim Integrated Products

(T
Single-Port, 40W, IEEE 802.3af/802.3at PSE
Controller with Integrated MOSFET
10
A
= +25°C, unless otherwise noted.)
_____________________________________________________________________________________
0mA
0mA
LED OVERCURRENT FAULT WITH PWM DISABLED
0mA
0V
0V
0V
0V
0V
LED DETECTION FAULT WITH PWM DISABLED
STARTUP USING 2-EVENT CLASSIFICATION
WITH A VALID PD
100ms/div
200ms/div
200ms/div
MAX5971A toc22b
MAX5971A toc23b
MAX5971A toc21
V
20V/div
I
100mA/div
V
10V/div
I
500mA/div
V
20V/div
V
50V/div
I
500mA/div
V
20V/div
OUT
OUT
OUT
AGND
AGND
AGND
AGND
AGND
Typical Operating Characteristics (continued)
- V
- V
- V
- V
- V
OUT
OUT
LED
OUT
LED
0mA
0mA
0mA
LED OVERCURRENT FAULT WITH PWM ENABLED
0V
0V
0V
0V
0V
0V
LED DETECTION FAULT WITH PWM ENABLED
LED PWM TIMING AND DUTY CYCLE
200ms/div
200ms/div
10µs/div
MAX5971A toc22a
MAX5971A toc23a
MAX5971A toc24
V
10V/div
I
500mA/div
V
20V/div
V
50V/div
I
500mA/div
V
20V/div
V
50V/div
I
500mA/div
V
20V/div
OUT
OUT
OUT
AGND
AGND
AGND
AGND
AGND
AGND
- V
- V
- V
- V
- V
- V
OUT
LED
OUT
LED
OUT
LED