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Power Manager II - POWR1220AT8


Overview

The Power Manager II ispPAC-POWR1220AT8 offers a superior solution for power supply monitoring, trimming and voltage measurement. This programmable device replaces multiple ICs, including reset generators, supervisor ICs, watchdog timers, sequencing/tracking and hot-swap ICs.

Please select a document category from the selection on the left-hand side of this page for more information on the ispPAC-POWR1220AT8.

POWR1220AT8 Block

Block Diagram

Features

  • Monitor, Control, and Margin Multiple Power Supplies
    • Simultaneously monitors up to 12 power supplies
    • Provides up to 20 output control signals
    • Provides up to eight analog outputs for margining/trimming power supply voltages
    • Programmable digital and analog circuitry
  • Power Supply Margin and Trim Functions
    • Trim and margin up to eight power supplies
    • Dynamic voltage control through I2C
    • Four hardware selectable voltage profiles
    • Independent Digital Closed-Loop Trim function
      for each output
  • Embedded PLD for Sequence Control
    • 48-macrocell CPLD implements both state
      machines and combinatorial logic functions
  • Embedded Programmable Timers
    • Four independent timers
    • 32μs to 2 second intervals for timing sequences
  • Analog Input Monitoring
    • 12 independent analog monitor inputs
    • Differential inputs for remote ground sense
    • Two programmable threshold comparators per
      analog input
    • Hardware window comparison
    • 10-bit ADC for I2C monitoring
  • High-Voltage FET Drivers
    • Power supply ramp up/down control
    • Programmable current and voltage output
    • Independently configurable for FET control or digital output
  • 2-Wire (I2C/SMBus™ Compatible) Interface
    • Comparator status monitor
    • ADC readout
    • Direct control of inputs and outputs
    • Power sequence control
    • Dynamic trimming/margining control
  • 3.3V Operation, Wide Supply Range 2.8V to 3.96V
    • In-system programmable through JTAG
    • Industrial temperature range: -40°C to +85°C

 

Typical Application

The Power Manager II POWR1220AT8 provides a standard command interface to the IPMC while performing FRU specific payload power management functions using the on-chip CPLD. The POWR1220AT8 also converts all on board DC-DC converters into accurate digitally controlled supplies.