MAX5942ACSE(2003) データシートの表示（PDF） - Maxim Integrated

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MAX5942ACSE
(Rev.:2003)

IEEE 802.3af Power-Over-Ethernet Interface/PWM Controller for Power Devices

Maxim Integrated 

IEEE 802.3af Power-Over-Ethernet

Interface/PWM Controller for Power Devices

RJ-45

POWER-OVER

SIGNAL PAIRS

3

RX

6

1

2

4

TX

5

7

8

POWER-OVER

SPARE PAIRS

VREG

PHY

GND

+ DF025A

-

+ DF025A

-

-48V

VREG

GND

SMBJ58CA

60V

-48V

*D1

**R1

RDISC =

25.5kΩ

68nF

**R2

*D2

V+

GND

NDRV

VDD

CS

MAX5942

VCC

V-

SS_SHDN

UVLO

RCL

GATE

VEE

PGOOD

PGOOD

FB

OUT

CGATE*

* OPTIONAL.

** R1 AND R2 ARE OPTIONAL AND WHEN USED, THEY MUST TOTAL TO 25.5kΩ AND REPLACE THE 25.5kΩ RESISTOR.

Figure 8. PD with Power-Over-Ethernet (Power is Provided by Either the Signal Pairs or the Spare Pairs)

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