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参数资料
| 型号： | LTC4274CUHF#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 27/28页 |
| 文件大小： | 702K |
| 描述： | IC CONTROLLER POE 38-QFN |
| 标准包装： | 52 |
| 类型： | 以太网供电 PSE 控制器（PoE） |
| 应用： | 供电设备（PSE） |
| 内部开关： | 无 |
| 电流限制： | 可调 |
| 电源电压： | 3 V ~ 4.3 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-QFN |
| 供应商设备封装： | 38-QFN（5x7）裸露焊盘 |
| 包装： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 制造商全称:Linear Technology 功能描述:Quad PoE/PoE/LTPoE PSE Controller |
| LTC4278 | 制造商:LINER 制造商全称:Linear Technology 功能描述:IEEE 802.3at PD with Synchronous No-Opto Flyback Controller and 12V Aux Support |
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