- 您现在的位置：买卖IC网 > PDF目录179919 > LTC4261CUFD-2#PBF (LINEAR TECHNOLOGY CORP) Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: QFN; No of Pins: 24; Temperature Range: 0°C to +70°C PDF资料下载
参数资料
| 型号： | LTC4261CUFD-2#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: QFN; No of Pins: 24; Temperature Range: 0°C to +70°C |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24 |
| 封装： | 4 X 5 MM, LEAD FREE, PLASTIC, QFN-24 |
| 文件页数： | 1/34页 |
| 文件大小： | 357K |
| 代理商： | LTC4261CUFD-2#PBF |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
LTC4261/LTC4261-2
1
42612fc
Negative Voltage
Hot Swap Controllers with
ADC and I2C Monitoring
The LTC4261/LTC4261-2 negative voltage Hot SwapTM
controllersallowaboardtobesafelyinsertedandremoved
from a live backplane. Using an external N-channel pass
transistor, the board supply voltage can be ramped at an
adjustable rate. The devices feature independently adjust-
able inrush current and overcurrent limits to minimize
stresses on the pass transistor during start-up, input
step and output short conditions. The LTC4261 defaults
to latch-off while the LTC4261-2 defaults to auto-retry on
overcurrent faults.
An I2C interface and onboard 10-bit ADC allow monitoring
of board current, voltage and fault status. A single-wire
broadcast mode is available to simplify the interface by
eliminating two optoisolators.
The controllers have additional features to interrupt the
host when a fault has occurred, notify when output power
is good, detect insertion of a board and turn off the pass
transistor if an external supply monitor fails to indicate
power good within a timeout period.
n
AdvancedTCA Systems
n
Telecom Infrastructure
n
–48V Distributed Power Systems
n
Power Monitors
n
Allows Safe Insertion into Live –48V Backplanes
n
10-Bit ADC Monitors Current and Voltages
n
I2C/SMBus Interface or Single-Wire Broadcast Mode
n
Floating Topology Allows Very High Voltage
Operation
n
Independently Adjustable Inrush and Overcurrent
Limits
n
Controlled Soft-Start Inrush
n
Adjustable UV/OV Thresholds and Hysteresis
n
Sequenced Power Good Outputs with Delays
n
Adjustable Power Good Input Timeout
n
Programmable Latchoff or Auto-Retry After Faults
n
Alerts Host After Faults
n
Available in 28-Lead Narrow SSOP and 24-Lead
(4mm
× 5mm) QFN Packages
–48V/200W Hot Swap Controller with I2C and ADC
+
PGI
ALERT
SDAO
SDAI
SCL
ADIN
PGIO
PG
UVL
UVH
ADIN2
OV
INTVCC
ON
RAMP
DRAIN
GATE
LTC4261CGN
VIN
VEE
EN
TMR
SS
SENSE
1M
4
× 1k IN SERIES
1/4W EACH
453k
1%
–48V RTN
–48V INPUT
UV = 38.5V
UV RELEASE
AT 43V
OV RELEASE
AT 71V
OV = 72.3V
16.9k
1%
11.8k
1%
10nF
100V
5%
47nF
0.1F
1F
220nF
47nF
0.008
1%
10
VOUT
Q1
IRF1310NS
1k
330F
100V
LOAD
ON
42612 TA01
VIN+
VIN–
Start-Up Behavior
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
–48V INPUT
50V/DIV
VOUT
50V/DIV
SENSE
0.5A/DIV
PG
50V/DIV
10ms/DIV
42612 TA01b
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot
Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of
their respective owners.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4261CUFD-2#TRPBF | Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: QFN; No of Pins: 24; Temperature Range: 0°C to +70°C |
| LTC4261IGN#PBF | Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: SSOP; No of Pins: 28; Temperature Range: -40°C to +85°C |
| LTC4261IGN#TRPBF | Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: SSOP; No of Pins: 28; Temperature Range: -40°C to +85°C |
| LTC4263CDE#PBF | Single IEEE 802.3af Compliant PSE Controller with Internal Switch; Package: DFN; No of Pins: 14; Temperature Range: 0°C to +70°C |
| LTE-4218 | 5 mm, 1 ELEMENT, INFRARED LED, 940 nm |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4261IGN | 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP RoHS:否 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) |
| LTC4261IGN#PBF | 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP 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) |
| LTC4261IGN#TR | 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP RoHS:否 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) |
| LTC4261IGN#TRPBF | 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP 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) |
| LTC4261IGN-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring |
发布紧急采购，3分钟左右您将得到回复。