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PD70101 Arkusz danych(PDF) 12 Page - Microchip Technology

Numer części PD70101
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

PD70101 Arkusz danych(HTML) 12 Page - Microchip Technology

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...........continued
Symbol
Parameter
Test Conditions/Comment
Min
Typ
Max
Units
Switching Frequency and Synchronization
FFREQ
Switching frequency range
100
500
kHz
FFREQ
Switching frequency accuracy3
RFREQ = 33.2k
285
315
345
kHz
FSYNC
Synchronization frequency range FSYNC > 2x FFREQ
200
1000 kHz
VSYNC-HIGH
Synchronization voltage high
threshold
2.4
5
V
VSYNC-LOW
Synchronization voltage low
threshold
0.8
V
PWSYNC_MIN Synchronization minimum pulse
width
100
ns
PWSYNC_MAX Synchronization maximum PWM
duty
90
%
ISYNC
Synchronization input current
–1.3
1.3
µA
Table 2-7. Error Amplifier
Symbol
Parameter
Test Conditions/Comment
Min
Type
Max
Units
GainDC_OPL
DC Open Loop Gain1
RLOAD = 100k
70
100
dB
AVUGBW
Unity Gain Bandwidth1
CLOAD = 10 pF
2
5
MHz
ICOMP_OUT
Output Sourcing Current
0.2 V ≤ VCOMP ≤ 1.3 V
110
620
µA
ICOMP_IN
Output Sink Current
0.2 V ≤ VCOMP ≤ 1.3 V
145
495
µA
VEA_CMR
Input Common Mode Range
0
2
V
VFB
Feedback Voltage
COMP shorted to FB
1.171
1.200
1.229
V
IFB
FB Pin Input Current
–50
50
nA
VCOMP
Output Clamp Voltage
1.8
2.1
2.6
V
Table 2-8. PWM Comparator
Symbol
Parameter
Test
Conditions/
Comment
Min
Type
Max
Units
VRCLP
RCLP Voltage
Range
0
1
V
Low Power Mode (Skip Pulse Mode)
Low Power
Skip
VCOMP Rising
(% of VRCLP)
95
%
Mode
Threshold1,4
VCOMP Falling
(% of VRCLP)
90
%
PD70101 and PD70201
Electrical Specifications
© 2020 Microchip Technology Inc.
Datasheet
DS00003738A-page 12



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