厂商:Freescale
类别:16位单片机
厂商:Littelfuse
类别:TVS二极管
类别:晶闸管
厂商:Yageo
类别:绕线式贴片电感
厂商:
类别:PhotoMOS(MOSFET输出光电耦合器)
厂商:Murata
类别:通信设备用滤波器
我要询价我要收藏
特点Power Path Management for Systems with Multiple DC SourcesAll N-Channel Switching to Reduce Power Losses and System CostSwitches and Isolates Sources Up to 30VAdaptive High Voltage Step-Up Regulator for N-Channel Gate DriveCapacitor Inrush and Short-Circuit Current LimitedUser-Programmable Timer to Limit Switch DissipationSmall Footprint: 16-Pin Narrow SSOP典型应用描述描述 The LTC?1473 provides a power management solution for single and dual battery notebook computers and other portable equipment. The LTC1473 drives two sets of back-to-back N-channel MOSFET switches to route power to the input of the main system switching regulator. An internal boost regulator provides the voltage to fully enchance the logic level N-channel MOSFET switches. The LTC1473 senses current to limit surge currents both into and out of the batteries and the system supply capacitor during switch-over transitions or during fault conditions. A user-programmable timer monitors the time the MOSFET switches are in current limit and latches them off when programmed time is exceeded. A unique "2-diode mode" logic ensures system start-up regardless of which input receives power first.