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

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

  First of all, only the dash-two (POWR1220AT8-2) Power Manager devices support HVOUT output voltage of 12V. Secondly, the gate of the hot swap MOSFET does need to be driven to 18V to 20V in order to turn it on. This is accomplished using a few ...

• 433 - How can I sense current with a Power Manager II?

  The Power Manager II devices can not measure current directly. However, the Application Note AN6049 shows several circuits that can be used with a Power Manager II device to measure current. The circuits shown convert the current into a voltage that ...

• 1397 - Power Manager II: How to implement a digitally controlled power supply?

  The POWR1220AT8 can be used to implement a form of Voltage Identification Digital (VID). Typically a processor will output a digital code to the power supply to request more or less power depending on the processor load. When the processor is going ...

• 413 - How do I implement Power-Off Detection in a Power Manager II device ?

  The Power Off Detection is used to sense when a supply (or set of supplies) is fully discharged before re-cycling the power-on or re-start sequence. Many devices require the supplies to be fully off before applying power and a Power Off Detection ...

• 1997 - Power Manager II: What is the buffer type for the POWR1220AT8 JTAG TDO pin and what voltage should the pull-up resistor be tied to for this pin?<br>

  The JTAG TDO pin is an LVCMOS output that is referenced to the voltage applied to the VCCJ pin. The voltage reference for this pin is shown in note 1 to the Digital Specifications table on page 1-11 of the ispPAC-POWR1220AT8 data sheet. There is no ...