LTC4242
9
4242f
AUXPGOOD1/AUXPGOOD2 (QFN): AUX  Supply  Power 
Status Output. This open-drain pin is pulled high by an
internal 9礎 pull-up when AUXOUTn is below power good
threshold, when ENn is high, during thermal shutdown,
AUXONn is low or when V
CC
 or AUXINn are in UVLO.
EN1/EN2: Card Presence/Slot Insert Detect Input. ENn 
pin must be pulled below 1.235V to enable the system.
An internal 9礎 pull-up current source is present on this
pin.
Exposed Pad (QFN): Power Ground. PCB electrical con-
nection is optional.
FAULT1/FAULT2:  Main  Supplies  Fault  Status  Output. 
FAULTn is pulled high by an internal 9礎 pull-up. When an
overcurrent fault occurs at either the 12V or 3.3V supply,
FAULTn is latched low.
FON1/FON2: Force On Digital Input. For diagnostic pur-
poses, a high input overrides undervoltage and overcurrent
faults on 12V, 3.3V and AUX channels and input commands
PI   FU CTIO S
U
U
on the ONn and AUXONn pins. However, UVLO on V
CC
 
would shut off the switches. Caution! There is no current
limit mechanism in this mode. Connect FONn to ground
to disable the fault override feature.
GND: Device Ground. Connect to a ground plane.
ON1/ON2: Main Supply On Control Input. A rising edge 
turns on the external MOSFETs for the 12V and 3.3V sup-
plies, while a falling edge turns them off. Pull this pin below
0.6V to clear the faults on 12V and 3.3V channels.
PGOOD1/PGOOD2: Main Supply Power Status Output. This 
open-drain pin is pulled high by an internal 9礎 pull-up
when 12V
OUTn
 or 3V
OUTn
 is below power good threshold,
when ENn is high, ONn is low or when V
CC
 or any of the
main supplies are in UVLO.
V
CC
: Device Supply Input. Operates from 2.7V to 6V. An 
internal undervoltage lockout circuit disables the part until
the voltage at V
CC
 exceeds 2.45V.
相关PDF资料
LTC4244CGN-1#TRPBF IC CTRLR HOTSWAP PCI 20-SSOP
LTC4245CG#TRPBF IC CNTRLR HOT SWAP 36-SSOP
LTC4251-2CS6#TRPBF IC CTRLR HOTSWAP NEGVOLT SOT23-6
LTC4252A-1IMS#TRPBF IC CNTRLR HOTSWAP NEGVOLT 10MSOP
LTC4253ACGN#TRPBF IC HOT SWAP CONTRLR -48V 16-SSOP
LTC4257CS8 IC CTRLR INTFACE PWR/ETHER 8SOIC
LTC4260IUH#PBF IC HOT SWAP CNTRL I2C 32-QFN
LTC4261IGN-2#PBF IC CTRLR HOTSWAP W/ADC 28-SSOP
相关代理商/技术参数
LTC4242IG 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Slot Hot Swap Controller for PCI Express
LTC4242IG#PBF 功能描述:IC CNTRLR HOT SWAP 36-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)
LTC4242IG#TRPBF 功能描述:IC CNTRLR HOT SWAP 36-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)
LTC4242IUHF 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Slot Hot Swap Controller for PCI Express
LTC4242IUHF#PBF 功能描述:IC CTRLR HOTSWAP DUAL-SLOT 38QFN 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)
LTC4242IUHF#TRPBF 功能描述:IC CNTRLR HOT SWAP 38-QFN 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)
LTC4244 制造商:LINER 制造商全称:Linear Technology 功能描述:Rugged, CompactPCI Bus Hot Swap Controllers
LTC4244CGN 功能描述:IC CTRLR HOTSWAP PCI 20-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)