厂商：Freescale
类别：16位单片机
厂商：ALPS
类别：检测开关
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
厂商：Atmel
类别：ATmega系列单片机
厂商：TDK
类别：压敏电阻
厂商：
类别：板到板窄间距连接器
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特点 Allows Safe Insertion into Live CompactPCI TM or PCI Express TM Backplane 8-Bit ADC Monitors Current and Voltage I 2 C TM /SMBus Interface dI/dt Controlled Soft StartSimultaneous or Sequenced Turn-On±20V Absolute Maximum Rating for ±12V SuppliesNo External Gate Capacitor RequiredDual-Level Circuit Breaker and Current LimitBus Precharge OutputPower Good Input with TimeoutOptional Latchoff or Autoretry After FaultsAlerts Host After FaultsIntegrated LOCAL_PCI_RST# Logic36-Pin SSOP and 38-Pin (5mm × 7mm) QFN Packages典型应用典型应用描述The LTC4245 Hot SwapTM controller allows a board to be safely inserted and removed from a live backplane in multiple supply systems such as CompactPCI and PCI Express. Using four external N-channel pass transistors, the board supply voltages can be ramped up at an adjustable rate and in any desired sequence. An I 2 C interface and onboard ADC allow monitoring of board current, voltage and fault status for each supply.The device features adjustable dI/dt controlled soft start and foldback limited inrush current. A dual-level timed circuit breaker and fast current limit protect each supply against overcurrent faults. A power good input with timeout allows a downstream supply monitor to disconnect the board supplies. The device can be con?gured to function without a –12V supply or with an extra 3.3V supply instead of a 5V supply.The controller has additional features to interrupt the host when a fault has occurred, notify when output power is good, detect insertion of a load card and power-up in either the on or off state.