參數(shù)資料
型號(hào): LTC4257IS8#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 網(wǎng)絡(luò)接口
英文描述: IEEE 802.3af PD Power over Ethernet Interface Controller; Package: SO; No of Pins: 8; Temperature Range: -40°C to +85°C
中文描述: DATACOM, NETWORK INTERFACE SUPPORT CIRCUIT, PDSO8
封裝: 0.150 INCH, LEAD FREE, PLASTIC, SOP-8
文件頁數(shù): 10/20頁
文件大小: 258K
代理商: LTC4257IS8#TRPBF
LTC4257
18
4257fb
TYPICAL APPLICATIO
U
1
5
4
1
3
2
RX
SPARE
6
RX
+
3
TX
2
TX
+
J2
IN
FROM
PSE
T1
RJ45
1
7
8
5
4
6
8
7
TXOUT
+
OUT
TO
PHY
TXOUT
SPARE
+
RXOUT
+
RXOUT
16
14
15
11
9
10
C19
47pF
C13
470pF
V
OUT
+
V
OUT
R24
100k
R28
10k
R23
3.65k
1%
R13
30.1k
1%
R17
10k
R14
100k
R11
10k
R10
62k
R25
62k
R26
10k
R27
62k
C20
0.47
F
C21
0.1
F
NOTES:
UNLESS
OTHERWISE
SPECIFIED
1.
ALL
RESISTORS
ARE
5%
2.
ALL
CAPACITORS
ARE
25V
3.
SELECT
R
CLASS
FOR
CLASS
1-4
OPERATION.
REFER
TO
DATA
SHEET
APPLICATIONS
INFORMATION
SECTION
4.
CONNECT
TO
CHASSIS
GROUND
C4
TO
C6:
TDK
C4532X5R0J107M
C2,
C23:
AVX
1808GC102MAT
D1,
D7:
MM3Z12VT1
D3:
MMBD1505
D9
TO
D12,
D14
TO
D16:
DIODES
INC.,
B1100
L1:
COILCRAFT
D01608C-472
T1:
PULSE
H2019
T2:
PULSE
PB2134
T3:
PULSE
PA0184
OSCAP
SFST
t ON
ENDLY
MINENAB
LT1737CGN
R
OCMP
V
CC
R
CMPC
UVLO
GATE
SGND
PGND
V
C
FB
3V
OUT
I SENSE
C22
680pF
0603
D8
BAT54
D5
B0540W
C17
3300pF
R15
0.22
1/2W
1%
R4
10k
T2
SEPARATING
LINE
FOR
GROUND
PLANE
T3
8
D7
12V
1
C12
0.1
F
50V
C10
4.7
F
35V
R16
330
C16
0.1
F
50V
C23
1000pF
2kV
9
10
3
5
4
C18
1nF
R18
100
Q6
Si7892DP
Q7
FMMT718
Q8
MMBT3904
8
11
C14
1
F
R12
47
C4
TO
C6
100
F
6.3V
3.3V
@
2.8A
Q3
Si4490DY
LTC4257CDD
R
CLASS
1%
NC
R
CLASS
NC
V
IN
GND
NC
PWRGD
V
OUT
C1B
0.82
F
100V
C1C
0.82
F
100V
L1
4.7
H
Q2
MMBT3904
Q4
MMBT2907ALT1
Q5
MMBT3904
R9
100
R8
47
R6
47
C9
100pF
D2
BAT54
Q1
MMBTA06
D4
BAS21LT1
D1
12V
D3A
D3B
R7
33
1/4W
C1A
10
F
100V
R5
47K
+
Q9
2N7002
D13
MMSD4148
C11
0.1
F
100V
D6
SMAJ58A
R30
75
C24
0.01
F
200V
R31
75
C25
0.01
F
200V
R1
75
C7
0.01
F
200V
R2
75
C3
0.01
F
200V
C2
1000pF
2kV
4257
TA04
D10
B1100
D12
B1100
D9
B1100
D11
B1100
D17
B1100
D16
B1100
D15
B1100
D14
B1100
3
4
Figure
11:
PD
Power
Interface
with
3.3V,
2.8A
High
Efficiency
Isolated
Power
Supply
相關(guān)PDF資料
PDF描述
LTC4259ACGW-1#PBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: 0°C to +70°C
LTC4259ACGW-1#TRPBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: 0°C to +70°C
LTC4259AIGW-1#PBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: -40°C to +85°C
LTC4259AIGW-1#TRPBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: -40°C to +85°C
LTC4259ACGW#PBF Quad IEEE 802.3af Power over Ethernet Controller with AC Disconnect; Package: SSOP; No of Pins: 36; Temperature Range: 0°C to +70°C
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4258 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad IEEE 802.3at Power over Ethernet Controller
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LTC4258CGW 制造商:Linear Technology 功能描述:POWER OVER ETHERNET CONTROLLER
LTC4258CGW#PBF 功能描述:IC POE 802.3AF QUAD 36-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類型:SPI 總線至 I²C 總線橋接 接口:I²C,串行,SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-HVQFN(4x4) 包裝:托盤 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱:935286452157SC18IS600IBSSC18IS600IBS-ND
LTC4258CGW#TR 制造商:Linear Technology 功能描述:POWER OVER ETHERNET CONTROLLER