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LTC4263 bảng dữ liệu(PDF) 8 Page - Linear Technology

tên linh kiện LTC4263
Giải thích chi tiết về linh kiện  8-Port PoE/PoE PSE Controller
PDF  32 Pages
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nhà sản xuất  LINER [Linear Technology]
Trang chủ  http://www.linear.com
Logo LINER - Linear Technology

LTC4263 bảng dữ liệu(HTML) 8 Page - Linear Technology

Back Button LTC4263 Datasheet HTML 4Page - Linear Technology LTC4263 Datasheet HTML 5Page - Linear Technology LTC4263 Datasheet HTML 6Page - Linear Technology LTC4263 Datasheet HTML 7Page - Linear Technology LTC4263 Datasheet HTML 8Page - Linear Technology LTC4263 Datasheet HTML 9Page - Linear Technology LTC4263 Datasheet HTML 10Page - Linear Technology LTC4263 Datasheet HTML 11Page - Linear Technology LTC4263 Datasheet HTML 12Page - Linear Technology Next Button
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LTC4290/LTC4271
8
429071f
Classification Transient Response
to 40mA Load Step
TYPICAL PERFORMANCE CHARACTERISTICS
Powering Up into a 180µF Load
Classification Current Compliance
VDD Supply Current vs Voltage
VEE Supply Current vs Voltage
802.3af Power On Sequence in
AUTO Pin Mode
802.3at Power On Sequence in
AUTO Pin Mode
Power On Sequence with 10VPP
60Hz Noise
FORCED CURRENT
DETECTION
VEE = –55V
CLASS 3 PD
VEE
50ms/DIV
–60
–10
–20
–30
–40
–50
0
429071 G01
FORCED VOLTAGE
DETECTION
802.3af
CLASSIFICATION
POWER ON
AGND
FORCED CURRENT
DETECTION
VEE = –55V
CLASS 4 PD
VEE
50ms/DIV
–60
–10
–20
–30
–40
–50
0
429071 G02
FORCED VOLTAGE
DETECTION
802.3at
CLASSIFICATION
POWER ON
AGND
AGND
50ms/DIV
–25
0
–5
–10
–15
–20
5
429071 G03
FORCED VOLTAGE
DETECTION
802.3af
CLASSIFICATION
POWER ON
PORT OFF
FORCED CURRENT
DETECTION
NORMAL DETECT
DETECT WITH 60Hz NOISE
5ms/DIV
429071 G04
FET ON
FOLDBACK
VEE = –54V
AGND
VEE
VEE
0mA
PORT VOLTAGE
20V/DIV
PORT CURRENT
200mA/DIV
GATE VOLTAGE
10V/DIV
425mA
CURRENT LIMIT
LOAD FULLY CHARGED
50µs/DIV
40mA
0mA
429071 G05
–20V
PORT
VOLTAGE
1V/DIV
PORT
CURRENT
20mA/DIV
VDD = 3.3V
VEE = –54V
CLASSIFICATION CURRENT (mA)
429071 G06
0
20
10
30
40
50
60
70
0
–2
–4
–6
–8
–10
–12
–14
–16
–18
–20
VDD SUPPLY VOLTAGE (V)
429071 G07
2.7
2.9
2.8
3.0 3.1 3.2 3.3 3.4
3.6
3.5
15.0
12.0
9.0
6.0
3.0
0.0
–40
25°C
85°C
VEE SUPPLY VOLTAGE (V)
429071 G08
–60
–50
–40
–30
–20
9.0
8.5
8.0
7.0
7.5
6.5
6.0
–40
25°C
85°C



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