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PD70210 Datasheet(PDF) 14 Page - Microchip Technology

Part # PD70210
Description  PoE IEEE짰 802.3af/at PD Controller
PDF  31 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PD70210 Datasheet(HTML) 14 Page - Microchip Technology

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Symbol
Parameter
Test
Conditions/
Comment
Min
Type
Max
Units
SG RdsONL
Secondary
Gate (SG) Low
On Resistance
10
Ω
TDEAD
Dead Time –
PG low to SG
high or SG low
to PG high
CLOAD on PG
and SG =
1000 pF
110
ns
PG Minimum
On Time
120
ns
PG Maximum
Duty Cycle
44.5
50
%
Table 2-12. Logic (ENABLE Pin)
Symbol
Parameter
Test
Conditions/
Comment
Min
Type
Max
Units
VHI
Logic High
Threshold
2.0
V
VLO
Logic Low
Threshold
0.8
V
Input Current
–1
1
µA
Table 2-13. PWM Controller Thermal Shutdown
Symbol
Parameter
Test
Conditions/
Comment
Min
Type
Max
Units
TSD
Thermal
Shutdown
Threshold1
157
°C
THYST
Threshold
Hysteresis1
15
30
°C
Notes: 
1.
Guaranteed by design.
2.
Soft start charge current equation: Iss_chg = 1.2V/RFREQ.
3.
Switching frequency equation: Freq = 1/[ (90 pF x RFREQ) + 150 ns], where Freq is (Hz).
4.
Low power mode clamp equation: VCLAMP = 0.3 * (RRCLP/RFREQ).
5.
Minimum and maximum current are guaranteed by design.
PD70101 and PD70201
Electrical Specifications
© 2020 Microchip Technology Inc.
Datasheet
DS00003738A-page 14



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