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LTC4223-1/LTC4223-2
1
422312f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Dual Supply Hot Swap
Controller for Advanced
Mezzanine Card
The LTC
?/DIV>
4223 positive voltage Hot Swap
TM
  controller
allows a board to be safely inserted and removed from
a live AMC or MicroTCA backplane. It controls the main
12V supply with an external N-channel MOSFET and the
3.3V auxiliary supply with an integrated switch. The 12V
output ramp rate is adjustable and includes inrush current
limiting. The 12V output is also protected against short
circuit faults with a fast acting current limit and a 5%
accurate timed circuit breaker. The 3.3V output includes
both soft start and overcurrent protection.
The LTC4223 features a current monitor output for the
12V supply, and reports fault and power-good status for
both supplies. It also detects card presence and allows
independent control of the 12V and auxiliary 3.3V sup-
ply outputs. The LTC4223-1 features a latch-off circuit
breaker, while the LTC4223-2 provides automatic retry
after a fault.
Advanced Mezzanine Card Application
?/DIV>
  Allows Safe Insertion into Live AMC or MicroTCA 
Backplane
?/DIV>
  Controls 12V Main and 3.3V Auxiliary Supplies
?/DIV>
  Limits Peak Fault Current in d1?/SPAN>s
?/DIV>
  Adjustable Current Limit with Circuit Breaker
?/DIV>
  Integrated 0.3?SPAN class="pst LTC4223CDHD-2-PBF_2351537_8"> AUX Switch
?/DIV>
  High Side Current Sense
?/DIV>
  Gate Drive for External N-Channel MOSFET
?/DIV>
  Adjustable Response Time for Overcurrent Protection
?/DIV>
  Adjustable Supply Voltage Power-Up Rate
?/DIV>
  Thermal Shutdown Protection
?/DIV>
  LTC4223-1: Latch Off After Fault
?/DIV>
  LTC4223-2: Automatic Retry After Fault
?/DIV>
  16-Lead SSOP and 5mm ?4mm DFN Packages
?/DIV>
  Advanced Mezzanine Card, MicroTCA Systems
?/DIV>
  Workstations and Server I/O
?/DIV>
  Telecom Networks
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Normal Power-Up Waveform
422312 TA01a
12V
SENSE
12V
GATE
12V
OUT
12V
IN
V
CC
AUXIN
AUXOUT
EN
AUXON
12ON
AUXPGOOD
12PGOOD
FAULT
12V
3.3V
6m?/DIV>
Si7336ADP
CARRIER
CONNECTOR
MODULE
CONNECTOR
TIMER
LTC4223-1/LTC4223-2
GND
12V
7.4A
3.3V
150mA
10?/DIV>
51?/DIV>
330nF
0.1糉
47?/DIV>
15nF
IPMC
12IMON
ADC
20ms/DIV
12PGOOD
5V/DIV
EN
5V/DIV
AUXOUT
5V/DIV
12V
OUT
5V/DIV
AUXPGOOD
5V/DIV
422312 TA01b
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相关代理商/技术参数
LTC4223CDHD-2#TRPBF 功能描述:IC CNTRLR HOT SWAP DUAL 16-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件
LTC4223CDHD-2PBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223CDHD-2TRPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223CGN-1#PBF 功能描述:IC CNTRLR HOT SWAP DUAL 16-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件
LTC4223CGN-1#TRPBF 功能描述:IC CNTRLR HOT SWAP DUAL 16-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件
LTC4223CGN-1PBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223CGN-1TRPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC4223CGN-2#PBF 功能描述:IC CNTRLR HOT SWAP DUAL 16-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件