MP8020 – IEEE 802.3af/at/bt, PoE, POWERED DEVICE INTERFACE

MP8020 Rev. 1.0

MonolithicPower.com

11

2/17/2022

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TYPICAL CHARACTERISTICS (continued)

VDD = 54V, VADP = 24V, TA = 25°C, unless otherwise noted.

0.9

1

1.1

1.2

1.3

-50

0

50

100

150

TJ (°C)

Mark Event Current vs. Junction

Temperature

6

7

8

9

-50

0

50

100

150

TJ (°C)

Mark Event Resistance vs.

Junction Temperature

6

6.5

7

7.5

8

8.5

9

-50

0

50

100

150

TJ (°C)

VADP UVLO vs. Junction

Temperature

Rising

Falling

1.6

1.7

1.8

1.9

2

2.1

2.2

-50

0

50

100

150

TJ (°C)

AUX UVLO vs. Junction

Temperature

Rising

Falling

20

22

24

26

28

30

-50

0

50

100

150

TJ (°C)

External MOSFET Current Limit

vs. Junction Temperature

0

10

20

30

40

50

60

-50

0

50

100

150

TJ (°C)

Automatic Maintain Power

Signature Current Enable

Threshold vs. TJ