MAX5969A datasheet(2/14 Pages) MAXIM

Part #	MAX5969A

Description	IEEE 802.3af/at-Compliant, Powered Device Interface Controllers with Integrated Power MOSFET

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Manufacturer	MAXIM [Maxim Integrated Products]

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IEEE 802.3af/at-Compliant, Powered Device Interface

Controllers with Integrated Power MOSFET

2 ______________________________________________________________________________________

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

VDD to VSS ..........................................................-0.3V to +100V

DET, RTN, WAD, PG, 2EC to VSS .......................-0.3V to +100V

CLS to VSS ..............................................................-0.3V to +6V

Maximum Current on CLS (100ms maximum).................100mA

Continuous Power Dissipation (TA = +70NC) (Note 1)

10-Pin TDFN (derate 24.4mW/NC above +70NC)

Multilayer Board ........................................................1951mW

Package Thermal Resistance (Note 2)

B

JA.................................................................................4NC/W

B

JC ................................................................................9NC/W

Operating Temperature Range.......................... -40NC to +85NC

Maximum Junction Temperature.....................................+150NC

Storage Temperature Range............................ -65NC to +150NC

Soldering Temperature (reflow) .................................... +260NC

ELECTRICAL CHARACTERISTICS

(VIN = (VDD - VSS) = 48V, RDET = 24.9kω, RCLS = 615ω. RTN, WAD, PG, and 2EC unconnected, all voltages are referenced to VSS,

unless otherwise noted. TA = TJ = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 3)

ABSOLUTE MAXIMUM RATINGS

Note 1: Maximum power dissipation is obtained using JEDEC JESD51-5 and JESD51-7 specifications.

Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DETECTION MODE

Input Offset Current

IOFFSET

VIN = 1.4V to 10.1V (Note 4)

10

F

A

Effective Differential Input

Resistance

dR

VIN = 1.4V up to 10.1V with 1V step,

VDD = RTN = WAD = PG = 2EC (Note 5)

23.95

25.00

25.5

kI

CLASSIFICATION MODE

Classification Disable

Threshold

VTH,CLS

VIN rising (Note 6)

22.0

22.8

23.6

V

Classification Stability Time

0.2

ms

Classification Current

ICLASS

VIN = 12.5V to

20.5V, VDD =

RTN = WAD =

PG = 2EC

Class 0, RCLS = 619I

0

3.96

mA

Class 1, RCLS = 117I

9.12

11.88

Class 2, RCLS = 66.5I

17.2

19.8

Class 3, RCLS = 43.7I

26.3

29.7

Class 4, RCLS = 30.9I

36.4

43.6

Class 5, RCLS = 21.3I

52.7

63.3

TYPE 2 (802.3at) CLASSIFICATION MODE

Mark Event Threshold

VTHM

VIN falling

10.1

10.7

11.6

V

Hysteresis on Mark Event

Threshold

0.84

V

Mark Event Current

IMARK

VIN falling to enter mark event, 5.2V P VIN

P

10.1V

0.25

0.85

mA

Reset Event Threshold

VTHR

VIN falling

2.8

4

5.2

V

POWER MODE

VIN Supply Voltage Range

60

V

VIN Supply Current

IQ

Measured at VDD

0.27

0.55

mA

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