2.

Electrical Specifications

This section describes the electrical specifications of the PD39208 device.

2.1

Absolute Maximum Ratings

PoE performance is not guaranteed when exceeding the recommended rating. Exposure to any stress in the range

between the recommended rating, as listed in the following table, and the absolute maximum rating should be limited

to a short time. Exceeding these ratings may impact long-term operating reliability.

Table 2-1. Absolute Maximum Ratings

Parameters

Min

Max

Units

–0.3

72

V

PORT_NEG[0.7]pins

–0.3

V

–0.3

6

V

–0.3

4

V

Digital pins: MISO, MOSI, SCK, CS_N, ADDR[3:0],

PGD[3:0], RESET_N, TRIM

–0.3

V

Absolute maximum junction temperature

150

°C

Lead soldering temperature (40 s, reflow)

260

°C

Storage temperature

–65

150

°C

1.

2.

EPAD is connected by copper plane on PCB to AGND. AGND is ground for IC.

Note: DRV_VAUX5 and IREF are output pins and should not apply voltage or current. DRV_VAUX5 can be left open

when not used.

2.2

Recommended Operating Conditions

Table 2-2. Operating Conditions

Symbol

Parameter

Conditions

Min Typ Max Units

Maximum junction operating

temperature

125 °C

Main supply voltage Supports full IEEE 802.3af/at

functionality

44

57

V

2.3

Immunity

Table 2-3. Immunity

Symbol

Parameter

Conditions

Min

Typ

Max

Units

ESD

ESD rating

–2000

+2000

V

–500

+500

V

Surge

EN61000 4-5

–1

1

kV

PD39208

Electrical Specifications

Datasheet

DS00003555B-page 7