MCZ34652 Datasheet | Freescale Semiconductor

.. Freescale Semiconductor Advance Information Document Number: MC34652 Rev. 8.0, 2/2007 2.0 A Negative Voltage Hot Swap Controller with Enhanced Programmability The 34652 is a highly integrated - 48 V hot swap controller with an internal Power MOSFET. It provides the means to safely install and remove boards from live - 48 V backplanes without having to power down the entire system. It regulates the inrush current, from the supply to the load’s filter capacitor, to a user-programmable limit, allowing the system to safely stabilize. A disable function allows the user to disable the 34652 manually or through a microprocessor and safely disconnect the load from the main power line. The 34652 has active high and active low power good output signals that can be used to directly enable a power module load. Programmable under- and overvoltage detection circuitry monitors the input voltage to check that it is within its operating range. A programmable start-up delay timer ensures that it is safe to turn on the Power MOSFET and charge the load capacitor. A two-level current limit approach to controlling the inrush current and switching on the load limits the peak power dissipation in the Power MOSFET. Both current limits are user programmable. Features - Integrated Power MOSFET and Control IC in a Small Outline Package - Input Voltage Operation Range from -15 V to - 80 V - Programmable Overcurrent Limit with Auto Retry - Programmable Charging Current Limit Independent of Load Capacitor - Programmable Start-Up and Retry Delay Timer - Programmable Overvoltage and Undervoltage Detection - Active High and Low Power Good Output Signals - Thermal Shutdown - Pb-Free Packaging Designated by Suffix Code EF HOT SWAP SCALE 2:1 EF SUFFIX (PB-Free) 98ASB42566B 16-PIN SOICN ORDERING INFORMATION Device MC34652EF/ R2 - 40°C to 85°C MCZ34652EF/ R2 16 SOICN Temperature Range (TA) Package DISABLE PG GND System Power Supply (Backplane) -48 V VPWR PG UV...