1399 - Power Manager II: How does the POWR1220AT8 control a 12V hot swap MOSFET when the maximum HVOUT voltage is 12V?

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• 1476 - Power Manager II: Can I use an ispPAC-POWR1220 for -48V hot-swap control?

  Although most of our applications literature shows the ispPAC-POWR607 in -48V hot-swap applications, it is possible to also use an ispPAC-POWR1220. It is generally not preferable to the ispPAC-POWR607 for the following reasons: It is physically ...

• 445 - When I measure the Power Manager II HVOUT voltage it is low, why?

  Most likely the scope probe or volt-meter has too low an impedance and is pulling the voltage down. For example, if the High Voltage Output (HVOUT) is programmed to source 12 uA and the scope probe used to measure the output voltage is 100k to ...

• 2721 - Can Power Manager II Device  support Hot Socketing?

  Yes, Power Manager II device supports Hot Socketing. All the pins of the Power Manager II are Hot Socket complaint. There is no problem in applying maximum specified I/O voltages to the pins before VCCD or VCCA is applied. However small leakage ...

• 1400 - Platform Manager 2 & L-ASC10: What is Hot Swap? And how does a Power Manager device do it?

  Hot Swapping refers to inserting or removing a circuit card from a powered backplane. The circuit card presents an almost dead short to the supplies on the backplane with the discharged capacitors (bulk filtering, bypass, and hold-up). This dead ...

• 2624 - Platform Manager 2: What will happen if the HVOUT driver current setting in PAC-Designer is less than the actual requirement of the MOSFET?

  The HVOUT signal should be connected to the gate of the MOSFET in order to turn it on. There is typically no minimum gate current requirement for a MOSFET in order to turn it on. The current supplied to the MOSFET gate will determine how fast it ...