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Power Manager II - POWR6AT6

In Detail
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Overview

The ispPAC-POWR6AT6 is a general-purpose power-supply monitoring and trimming/margining controller, which integrates a 10-bit Analog to Digital Converter (ADC), six Digital to Analog Converters (DAC) as well as an I2C interface, for measuring the power supply voltages using its on-chip ADC.

Please select a document category from the selection on the left-hand side of this page for more information on ispPAC-POWR6AT6.

POWR6AT6 Block Diagram

Block Diagram

Features

  • Power Supply Margin and Trim Functions
    • Trim and margin up to six power supplies
    • Dynamic voltage control through I2C
    • Four hardware selectable voltage profiles
    • Independent Digital Closed-Loop Trim function for each output
  • Analog Input Monitoring
    • Six analog monitor inputs
    • Differential input architecture for accurate remote ground sensing
    • 10-bit ADC for direct voltage measurements
  • 2-Wire (I2C/SMBus™ Compatible) Interface
    • Readout of the ADC
    • Dynamic trimming/margining control
  • Other Features
    • Programmable analog circuitry
    • Wide supply range, 2.8V to 3.96V
    • In-system programmable through JTAG
    • Industrial temperature range: -40°C to +85°C
    • 32-pin QFN package, only 5mm x 5mm, lead free option

 

Typical Application

ispPAC-POWR6AT6 improves the output voltage accuracy of any DC-DC converter. Using an on-chip Analog to Digital Converter (ADC), the ispPAC-POWR6AT6 monitors the output power supply voltage of a DC-DC converter through differential input signals. The ispPAC-POWR6AT6 maintains the output voltage of the converter by periodically measuring the supply output voltage and applying corrective current to the power supply feedback node.  By adding an ispPAC-POWR6AT6 device to a low cost DC-DC converter design the following can be achieved:
  • Reduced output voltage error to < 1%
  • Compensate for power supply bus IR drop
  • Power supply margining
  • Enable I2C host to control power supply output voltage
  • Power supply voltage measurement

POWR6AT6 Application