PD70211 datasheet(13/30 Pages) MICROSEMI

13 / 30 page

Microsemi

Page 13

Rev. 1.4, July 2017

CPG

– PoE BU

One Enterprise Aliso Viejo, CA 92656 USA

PD70211

PD Controller with Switching Regulator for

AF/AT/UPOE/HDBaseT/4-pair PoE Applications

Symbol

Parameter

Conditions

Min

Typ

Max

Units

ILOAD

Continuous operation

load

Undervoltage Lockout

UVLOON

Threshold that marks

start of Inrush phase

UVLOOFF

Threshold where pass-

FET turns off as VPP

collapses

30.5

34.5

DC-DC Input Cap Discharger

ICAP_DIS

Discharge current

7V ≤ VPP ≤ 30V

22.8

tdis

Discharge time

CDC_DC ≤ 264 μF

(by design, not tested)

500

timerdis

Discharge timer

Time for which discharge

circuit is activated

430

References, Rails and Logic

VAUX

Auxiliary voltage

0mA < IAUX < 4mA

9.8

10.5

12.0

IAUX

Max continuous current

from VAUX

IAUX_CLIM

Aux current limit

VREF

Bandgap reference

voltage

1.17

1.2

1.23

tFLAG_LO

Low level flag

For AT_FLAG, HD_FLAG,

4P_AT_FLAG,

4P_HD_FLAG, IFLAG= 3mA

0.4

IFLAG

Flag Current driving

capability

For AT_FLAG, HD_FLAG,

4P_AT_FLAG, 4P_HD_FLAG

tFLAG

Delay timer between

start of inrush and flags

declared

For AT_FLAG, HD_FLAG,

4P_AT_FLAG, 4P_HD_FLAG

VSUPP_HI

SUPP_Sx high voltage

threshold

For SUPP_S1 and SUPP_S2

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