參數(shù)資料
型號(hào)： LTC4261CUFD-2#PBF
廠商： Linear Technology
文件頁數(shù)： 1/34頁
文件大?。?/td> 361K
描述： IC CTRLR HOTSWAP W/ADC 24-QFN
標(biāo)準(zhǔn)包裝： 73
類型： 熱交換控制器
應(yīng)用： 通用
內(nèi)部開關(guān)： 無
電源電壓： 9 V ~ 11.2 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 24-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 24-QFN（5x4）
包裝： 管件
LTC4261/LTC4261-2
1
42612fc
Negative Voltage
Hot Swap Controllers with
ADC and I
2
C Monitoring
The LTC
?/DIV>
4261/LTC4261-2 negative voltage Hot Swap
TM
 
controllers allow a board to be safely inserted and removed
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 I
2
C 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
  I
2
C/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 I
2
C and ADC
+
PGI
ALERT
SDAO
SDAI
SCL
ADIN
PGIO
PG
UVL
UVH
ADIN2
OV
INTV
CC
ON
RAMP
DRAIN
GATE
LTC4261CGN
V
IN
V
EE
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
0.1礔
1礔
220nF
47nF
0.008
1%
10
V
OUT
Q1
IRF1310NS
1k
330礔
100V
LOAD
ON
42612 TA01
V
IN
+
V
IN

Start-Up Behavior
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
48V INPUT
50V/DIV
V
OUT
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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4261IGN 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4261IGN#PBF 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4261IGN#TR 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4261IGN#TRPBF 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4261IGN-2 制造商:LINER 制造商全稱:Linear Technology 功能描述:Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring
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