LTC4224-1/LTC4224-2
1
422412fa
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Compact Dual Low
Voltage Hot Swap Controller
The LTC
?/DIV>
4224 Dual Low Voltage Hot Swap" controller
allows a board to be safely inserted and removed from a
live backplane. It controls two supplies with external N-
channel MOSFETs and operates with one supply as low
as 1V provided the other supply is 2.7V or greater. The
LTC4224 can ramp up the supplies in any order and at
adjustable ramp rates. To minimize the number of external
components and PCB area, the gate capacitor is optional,
all timing delays are generated internally, and the ON pins
have integrated pull-up currents.
Protection against overcurrent faults is provided by a fast-
acting current limit and timed circuit breakers. A FAULT pin
signals overcurrent faults. The LTC4224-1 remains off after
a fault, while the LTC4224-2 automatically tries to apply
power again after a four second cool-down period.
Normal Power-Up Waveform
n
Allows Safe Board Insertion and Removal from a
Live Backplane
n
Controls Load Voltages from 1V to 6V
n
No Gate Components Required
n
Adjustable Current Limit with Circuit Breaker
n
Limits Peak Fault Current in d1約
n
No External Timing Capacitor Required
n
Adjustable Supply Voltage Power-Up Rate
n
Gate Drive for External N-channel MOSFET
n
LTC4224-1: Latchoff After Fault
n
LTC4224-2: Automatic Retry After Fault
n
10-Lead MSOP and 3mm ?2mm DFN Packages
n
Optical Networking
n
Low Voltage Hot Swap
n
Electronic Circuit Breakers
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Hot Swap
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
422412 TA01a
LTC4224
V
CC1
FAULT
SENSE1
SENSE2 GATE1 GATE2
ON1
ON2
GND
GND
V
CC2
5V
3.3V
0.015?/DIV>
0.010?/DIV>
FDS6911
5V
1A
3.3V
2A
LTC4224
CONNECTOR PLUG-IN
CARD
V
OUT1
5V/DIV
V
OUT2
5V/DIV
0.5ms/DIV
422412 TA01b
I
IN1
2A/DIV
I
IN2
2A/DIV
C
LOAD
= 150糉
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相关代理商/技术参数
LTC4224IDDB-2-PBF
制造商:LINER 制造商全称:Linear Technology 功能描述:Compact Dual Low Voltage Hot Swap Controller
LTC4224IDDB-2-TRPBF
制造商:LINER 制造商全称:Linear Technology 功能描述:Compact Dual Low Voltage Hot Swap Controller
LTC4224IMS-1#PBF
功能描述:IC CTLR HOT SWAP DUAL LV 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件
LTC4224IMS-1#TRPBF
功能描述:IC CNTRLR HOT SWAP DUAL 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件
LTC4224IMS-1-PBF
制造商:LINER 制造商全称:Linear Technology 功能描述:Compact Dual Low Voltage Hot Swap Controller
LTC4224IMS-1-TRPBF
制造商:LINER 制造商全称:Linear Technology 功能描述:Compact Dual Low Voltage Hot Swap Controller
LTC4224IMS-2#PBF
功能描述:IC CNTRLR HOT SWAP DUAL 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件
LTC4224IMS-2#TRPBF
功能描述:IC CNTRLR HOT SWAP DUAL 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件