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参数资料
| 型号： | LTC4278IDKD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 12/42页 |
| 文件大小： | 0K |
| 描述： | IC PD IEEE 802.3AT 25.5W 32-DFN |
| 标准包装： | 2,500 |
| 控制器类型： | 供电设备接口控制器（PD） |
| 接口： | IEEE 802.3af |
| 电源电压： | 4.5 V ~ 20 V |
| 电流 - 电源： | 6.4mA |
| 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： | 带卷 (TR) |
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LTC4278
2
4278fc
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Pins with Respect to VPORTN
VPORTP Voltage......................................... –0.3V to 100V
VNEG Voltage......................................... –0.3V to VPORTP
VNEG Pull-Up Current ..................................................1A
SHDN....................................................... –0.3V to 100V
RCLASS, Voltage............................................ –0.3V to 7V
RCLASS Source Current...........................................50mA
PWRGD Voltage (Note 3)
Low Impedance Source ......VNEG –0.3V to VNEG +11V
Sink Current.........................................................5mA
PWRGD, T2P Voltage............................... –0.3V to 100V
PWRGD, T2P Sink Current.....................................10mA
Pins with Respect to GND
VCC Voltage................................................ –0.3V to 22V
SENSE–, SENSE+ Voltage........................ –0.5V to +0.5V
UVLO, SYNC Voltage...................................–0.3V to VCC
FB Current..............................................................±2mA
VCMP Current .........................................................±1mA
Operating Ambient Temperature Range
LTC4278C ................................................ 0°C to 70°C
LTC4278I..............................................–40°C to 85°C
(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
VPORTP
NC
PWRGD
NC
VNEG
NC
PG
PGDLY
RCMP
CCMP
SENSE+
SENSE–
UVLO
VCMP
SHDN
T2P
RCLASS
NC
VPORTN
NC
SG
VCC
tON
ENDLY
SYNC
SFST
OSC
FB
TOP VIEW
DKD32 PACKAGE
32-LEAD (7mm × 4mm) PLASTIC DFN
TJMAX = 125°C,θJA = 34°C/W, θJC = 2°C/W
GND, EXPOSED PAD (PIN 33) MUST BE SOLDERED TO A
HEAT SINKING PLANE THAT IS CONNECTED TO VNEG
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC4278CDKD#PBF
LTC4278CDKD#TRPBF
4278
32-Lead (7mm
× 4mm) Plastic DFN
0°C to 70°C
LTC4278IDKD#PBF
LTC4278IDKD#TRPBF
4278
32-Lead (7mm
× 4mm) Plastic DFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
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/
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4280 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring |
| LTC4280CUFD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring |
| LTC4280CUFD#PBF | 功能描述:IC CONTROLLER HOT SWAP QFN-24 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC4280CUFD#TRPBF | 功能描述:IC CTLR HOT SWAP I2C MON 24QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC4280CUFD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring |
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