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PD70210 Arkusz danych(PDF) 11 Page - Microchip Technology

Numer części PD70210
Szczegółowy opis  PoE IEEE짰 802.3af/at PD Controller
PDF  31 Pages
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Producent  MICROCHIP [Microchip Technology]
Strona internetowa  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PD70210 Arkusz danych(HTML) 11 Page - Microchip Technology

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Symbol
Parameter
Test Conditions/Comment
Min Type Max Units
IVAUXC
Output continuous current
When TLOAD ≤10 mS Isolating switch at ILIM-
HIGH and PGOOD = Low
0
2
mA
IVAUX
VAUX output current limit
Isolating switch at ILIM-HIGH and PGOOD = Low 10
32
mA
Table 2-6. DC/DC Controller
Symbol
Parameter
Test Conditions/Comment
Min
Typ
Max
Units
VCC
VCC
Maximum Input Operating
Voltage
20
V
IVCC
Input Current
VCC< VCC_UVLO or
ENABLE = Low. 5
250
2000 µA
VENABLE and VINS = High;
VVCC < VCC_UVLO_UP; -40 °C ≤
Temp ≤ +55 °C.5
4.5
mA
VCC >VCC_UVLO and
ENABLE = High, No Load on PG,
SG, VL, and FSW = 500 kHz.
3
mA
VCC_UVLO VCC UVLO Rising Threshold
VCC raising edge
8.85
9.15
9.5
V
VCC_UVLO VCC UVLO Falling Threshold
VCC falling edge
7
7.3
7.6
V
POE Port Input UVLO
VINS
UVLO Threshold
1.171 1.200 1.229 V
VINS Input Current
–0.1
0.1
µA
HYST-VOH
HYST Output High Voltage
ISOURCE = 1 mA
2.8
V
HYST-VOL
HYST Output Low Voltage
ISINK = 3 mA
0.4
V
Internal LDO’s
VL
5 V LDO
IL < 5 mA
4.75
5
5.25
V
VH
–5 V LDO
Reference to VCC
–5
V
Soft-Start
ISS_CHG
Soft-start charging current2
RFREQ = 33.2 kΩ; VSOFTSTART = 0.5
V
32
36
40
µA
ISS_DIS
Soft-start discharging current
VSOFTSTART = 0.5 V; % of ISS_CHG
10
%
VSS_CH
Soft-start completion threshold1
% of 1.2 V
90
95
%
VSS_DISCH
Soft-start discharge completion
threshold1
50
mV
RSS_DISCH
Soft-start discharge FET on
resistance
50
Ω
tDISCH
Soft-start discharge FET on time1 1 cyc = 1/FFREQ
32
cyc
PD70101 and PD70201
Electrical Specifications
© 2020 Microchip Technology Inc.
Datasheet
DS00003738A-page 11



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