LTC4241 - PCI-Bus with 3.3V Auxiliary Hot Swap Controller

The LTC®4241 is a Hot Swap controller that allows a board to be safely inserted and removed from a live PCI-bus slot. It has a primary controller that controls the four PCI supplies and an independent auxiliary controller to controlthe 3.3V auxiliary supply. External N-channel transistors are used to control the 3.3V, 5V and 3.3V auxiliary supplies while on-chip switches control the –12V and 12V supplies. The 3.3V, 5V and 3.3V auxiliary supplies can be ramped upat an adjustable rate. Electronic circuit breakers protect all five supplies against overcurrent faults. The foldback current limit feature reduces current spikes and power dissipation when shorts occur. The PWRGD output of the primary controller indicates when all four PCI supplies are within tolerance. The FAULT output indicates an overcurrent condition for any of the five supplies.

The LTC4241 is available in the 20-pin narrow SSOP package.

特点
  • Allows Safe Board Insertion and Removal from a Live PCI Slot
  • Controls 3.3V, 5V, –12V, 12V and 3.3V Auxiliary Supplies
  • Independent 3.3V Auxiliary Supply Hot Swap™ Controller
  • Adjustable Foldback Current Limit with Circuit Breaker
  • Adjustable Supply Voltage Power-Up Rate
  • High Side Drive for External N-Channel FETs
  • –12V and 12V On-Chip Switches
  • Fault and Power Good Outputs
典型应用
LTC4241 Typical Application
应用
  • PCI-Based Servers
  • Computer Systems
封装信息
LTC4241 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC4241CGN#PBFSSOP-20C$2.15$1.75
LTC4241CGN#TRPBFSSOP-20C$1.81
LTC4241IGN#PBFSSOP-20I$2.55$2.05
LTC4241IGN#TRPBFSSOP-20I$2.11
数据表
可靠性数据
产品选择卡
CAD 符号
相关产品
LTC4241 - PCI-Bus with 3.3V Auxiliary Hot Swap Controller
R427 Reliability Data
Hot Swap Controllers
LTC4241 Footprints and Symbols