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参数资料
| 型号： | LTC4268IDKD-1#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/46页 |
| 文件大小： | 419K |
| 描述： | IC PD HIGH POWER W/CNTRL 32-DFN |
| 产品培训模块： | Power over Ethernet |
| 标准包装： | 52 |
| 类型： | 以太网供电开关（PoE） |
| 应用： | 远程外设（工业控制，相机，数据访问） |
| 内部开关： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFDFN 裸露焊盘 |
| 供应商设备封装： | 32-DFN（7x4）裸露焊盘 |
| 包装： | 管件 |
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LTC4268-1
2
42681fc
pin conFiguraTion
absoluTe MaxiMuM raTings
V
PORTN
Voltage .......................................... 0.3V to 90V
V
NEG
Voltage ..................V
PORTN
+ 90V to V
PORTN
0.3V
V
CC
to GND Voltage (Note 3)
Low Impedance Source ......................... 0.3V to 18V
Current Fed ..........................................30mA into V
CC
R
CLASS
, I
LIM_EN
Voltage ..V
PORTN
+ 7V to V
PORTN
0.3V
SHDN Voltage ...............V
PORTN
+ 90V to V
PORTN
0.3V
PWRGD Voltage (Note 3)
Low Impedance Source ....V
NEG
+ 11V to V
NEG
0.3V
Current Fed ..........................................................5mA
PWRGD Voltage ............V
PORTN
+ 80V to V
PORTN
0.3V
PWRGD Current .....................................................10mA
R
CLASS
Current ....................................................100mA
SENSE
, SENSE
+
Voltage ........................0.5V to +0.5V
UVLO, SYNC Voltage ...................................0.3V to V
CC
FB Current ..............................................................?mA
V
CMP
Current .........................................................?mA
Operating Ambient Temperature Range (Notes 4, 5)
LTC4268-1C .............................................0癈 to 70癈
LTC4268-1I ..........................................40癈 to 85癈
Junction Temperature (Note 5) ............................. 150癈
Storage Temperature Range ..................65癈 to 150癈
(Notes 1, 2)
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
33
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
PORTP
NC
PWRGD
PWRGD
V
NEG
V
NEG
V
NEG
NC
PG
PGDLY
R
CMP
C
CMP
SENSE+
SENSE
UVLO
V
CMP
SHDN
NC
R
CLASS
I
LIM_EN
V
PORTN
V
PORTN
V
PORTN
NC
SG
V
CC
t
ON
ENDLY
SYNC
SFST
OSC
FB
TOP VIEW
DKD32 PACKAGE
32-LEAD (7mm ?4mm) PLASTIC DFN
T
JMAX
= 150癈,?/DIV>
JA
= 49癈/W, ?/DIV>
JC
= 4.7癈/W
EXPOSED PAD (PIN 33) MUST BE SOLDERED TO
HEAT SINKING PLANE THAT IS ELECTRICALLY CONNECTED TO GND
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC4268CDKD-1#PBF
LTC4268IDKD-1#PBF
LTC4268CDKD-1#TRPBF
LTC4268IDKD-1#TRPBF
42681
42681
32-Lead (7mm ?4mm) Plastic DFN
32-Lead (7mm ?4mm) Plastic DFN
0癈 to 70癈
40癈 to 85癈
LEAD BASED FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC4268CDKD-1
LTC4268IDKD-1
LTC4268CDKD-1#TR
LTC4268IDKD-1#TR
42681
42681
32-Lead (7mm ?4mm) Plastic DFN
32-Lead (7mm ?4mm) Plastic DFN
0癈 to 70癈
40癈 to 85癈
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
orDer inForMaTion
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4268IDKD-1-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Power PD with Synchronous NoOpto Flyback Controller |
| LTC4268IDKD-1-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Power PD with Synchronous NoOpto Flyback Controller |
| LTC4269-1 | 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 |
| LTC4269-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:IEEE 802.3at High Power PD and Synchronous Forward Controller with AUX Support |
| LTC4269CDKD-1#PBF | 功能描述:IC PD/OPTO FLYBACK CTRLR 32-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
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