SI3459 datasheet(9/57 Pages) SILABS

Part #	SI3459

Description	OCTAL IEEE 802.3AT POE PSE CONTROLLER

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Manufacturer	SILABS [Silicon Laboratories]

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9 / 57 page

Si3459

Rev. 1.1

9

Table 3. Digital Pin Recommended Operating Conditions1

Parameter

Symbol

Test Condition

Pins

Min

Typ

Max

Unit

Input low Voltage

VIL

RESET, SCL,

SDAI, A4, A3,

A2, A1

——

0.8

V

Input High Voltage

VIH

RESET, SCL,

SDAI, A4, A3,

A2, A1

2.0

—

V

Input Leakage

IIH

VDD =4.2 V,

Vpin = 4.2 V

RESET, SCL,

SDAI, A3, AIN,

INT, DCEN

——

6

µA

SHDN

——

10

µA

IIL

VDD =4.2 V,

Vpin = 0 V

SHDN

—85—

µA

IIL

VDD =3.3 V,

Vpin = 0 V

RESET, SCL,

SDAI, A4, A3,

A2, A1, INT,

DCEN

—15

50

µA

Output Low Voltage2

VOL

ISDAO =8mA,

IINT =8mA

IAOUT =8mA

——

0.6

V

Notes:

1. All specification voltages are referenced with respect to DGND. These specifications apply over the recommended

operating voltage and temperature ranges of the device unless noted otherwise.

2. SDAO and INT are open drain outputs. Tie each pin to VDD with a 1 k resistor for normal operation.

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