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參數資料
| 型號： | LTC4274CUHF#PBF |
| 廠商： | Linear Technology |
| 文件頁數： | 27/28頁 |
| 文件大?。?/td> | 702K |
| 描述： | IC CONTROLLER POE 38-QFN |
| 標準包裝： | 52 |
| 類型： | 以太網供電 PSE 控制器（PoE） |
| 應用： | 供電設備（PSE） |
| 內部開關： | 無 |
| 電流限制： | 可調 |
| 電源電壓： | 3 V ~ 4.3 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 38-QFN |
| 供應商設備封裝： | 38-QFN（5x7）裸露焊盤 |
| 包裝： | 管件 |
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LTC4274
27
4274fd
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
REVISION HISTORY
REV
DATE DESCRIPTION
PAGE NUMBER
A 4/11
Revised entire data sheet.
1 to 28
B
6/11
Added separate t
LIM
entry and revised t
CUT
and t
DIS
entries in the Electrical Characteristics section.
Revised curves G17, G19 and G21 in the Typical Performance Characteristics section.
Revised the AUTO pin description in the Pin Functions section.
Minor text edits in the Operating Modes, Current Limit, I
LIM
Foldback and MOSFET Fault Detection sections of the
Applications Information section.
Replaced Figure 16.
Replaced the Typical Application and revised the Related Parts.
5
9
13
18, 20, 21
23
28
C
9/11
Changed 48 Supply Voltage to Main PoE Supply Voltage.
3
Changed GATE typ voltage to 12V.
3, 12, 20
Revised V
ILD
text under Digital Interface.
4
Added (mA) to Class Compliance axis title.
7
Figure number reference corrected.
18
Revised power supply voltage figures under Power Supplies and Bypassing.
22
Specified SMAJ58A for Zener diode.
28
D
01/12 Revisied MAX value for V
ILD
I
2
C input low voltage
Clarified AUTO Pin mode relationship to Reset pin
4
16
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相關代理商/技術參數 |
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| LTC4274IUHF#PBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:IC POE IEEE 802.3AT 38-QFN 制造商:Linear Technology 功能描述:IC POE CNTRL 38QFN 制造商:Linear Technology 功能描述:IC, POE, CNTRL, 38QFN 制造商:Linear Technology 功能描述:IC, POE CONTROLLER, 3.6V, QFN-38; Input Voltage:3.6V; Supply Current:1.1mA; Digital IC Case Style:QFN; No. of Pins:38; Frequency:1MHz; Operating Temperature Min:-40C; Operating Temperature Max:85C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes |
| LTC4274IUHF#PBF | 制造商:Linear Technology 功能描述:IC POE CONTROLLER 3.6V QFN-38 |
| LTC4274IUHF#TRPBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP |
| LTC42766C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Quad PoE/PoE/LTPoE PSE Controller |
| LTC4278 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:IEEE 802.3at PD with Synchronous No-Opto Flyback Controller and 12V Aux Support |
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