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PM8803 数据表(PDF) 13 Page - STMicroelectronics

部件名 PM8803
功能描述  High-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller
PDF  34 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

PM8803 数据表(HTML) 13 Page - STMicroelectronics

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PM8803
Electrical specifications
Doc ID 018559 Rev 2
13/34
Table 5.
Electrical characteristics - interface section
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Detection and classification
Signature enable
VDD rising
1.5
V
Signature pull-down
resistance
within signature range
150
350
W
Signature disable
VDD rising
10.3
10.8
11.3
V
Classification enable
VDD rising
11.3
12
12.7
V
Classification turn-off
VDD rising
21.5
23.0
24.5
V
Mark event threshold /
Classification turn-off
VDD falling
9
10
11
V
Classification reset
threshold
VDD falling
3
4
5
V
CLS voltage
within classification range with
44 mA load
1.3
1.4
1.5
V
CLS max current
capability
within classification range with CLS
pin grounded
50
65
80
mA
Bias current
Idd
VDD supply current
during detection
VDD = 8 V
10
μA
VDD supply current
during classification
900
1200
μA
VDD supply current
during mark event
500
800
1100
μA
Undervoltage lockout
VUVLO_R
UVLO release
VIN rising
34
35
36.5
V
VUVLO_F
UVLO lockout
VIN falling
30
31
32.5
V
UVLO hysteresis
3.5
4
4.5
V
Hot-swap MOSFET
RDSON
MOSFET resistance
0.45
1
Ω
Default inrush current
limit
125
140
155
mA
Default DC current limit
590
640
690
mA



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