MAX5987AETE+ datasheet(8/24 Pages) MAXIM

Part #	MAX5987AETE+

Description	IEEE 802.3af-Compliant, High-Efficiency, Class 1/Class 2, PDs with Integrated DC-DC Converter

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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8 / 24 page

MAX5986A/MAX5986B/MAX5987A

IEEE 802.3af-Compliant, High-Efficiency, Class 1/

Class 2, PDs with Integrated DC-DC Converter

8

Maxim Integrated

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

Figure 2. Effective Differential Resistance and Offset Current

Figure 1. MAX5986A/MAX5987A Internal TVS Test Setup

DETECTION CURRENT vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

8.9

7.4

5.9

4.4

2.9

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0

1.4

10.1

QUIESCENT CURRENT vs. SUPPLY

VOLTAGE (ULTRA-LOW POWER MODE)

SUPPLY VOLTAGE (V)

55

50

45

40

2.75

3.00

3.25

3.50

3.75

4.00

2.50

35

60

SIGNATURE RESISTANCE

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

7.4

5.9

4.4

2.9

23

24

25

26

27

28

22

1.4

10.1

8.9

INPUT OFFSET CURRENT

vs. INPUT VOLTAGE

SUPPLY VOLTAGE (V)

7.4

5.9

4.4

2.9

-2

-1

0

1

2

3

-3

1.4

10.1

8.9

IIN

IINi + 1

IINi

IOFFSET

dRi

1V

VINi

VINi + 1

IOFFSET = IINi -

VINi

dRi

dRi =

(VINi + 1 - VINi)

=

1V

(IINi + 1 - IINi) (IINi + 1 - IINi)

VIN

EVALUATION

BOARD

1ms/10ms/100ms

RTEST

MAX5986A

100V

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MAX5987AETE+ Datasheet(PDF) 8 Page - Maxim Integrated Products

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