厂商:Freescale
类别:16位单片机
厂商:Yageo
类别:芯片电阻
厂商:
类别:PhotoMOS(MOSFET输出光电耦合器)
厂商:Atmel
类别:其它单片机
类别:高速放大器
类别:8位单片机
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特点Allows Safe Board Insertion and Removal from a Live PCI SlotControls 3.3V, 5V, –12V, 12V and 3.3V Auxiliary SuppliesIndependent 3.3V Auxiliary Supply Hot Swap? ControllerAdjustable Foldback Current Limit with Circuit BreakerAdjustable Supply Voltage Power-Up RateHigh Side Drive for External N-Channel FETs–12V and 12V On-Chip SwitchesFault and Power Good Outputs典型应用描述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.