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6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers

Highly Integrated, 6-Channel, System-Management IC with Nonvolatile Fault Monitoring

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Operates from 2.8V to 14V
  • 1% Accurate, 10-Bit ADC Monitors 6 Voltage Inputs
  • Analog EN Monitoring Input
  • 6 Monitored Inputs with Overvoltage and Undervoltage Limits
  • Nonvolatile Fault Event Logger
  • Six General-Purpose Inputs/Outputs Configurable as:
    • Dedicated Fault Output
    • Watchdog Timer Function
    • Manual Reset
    • SMBus Alert
    • Fault Propagation Input/Output
  • SMBus and JTAG Interface
  • Supports Cascading with MAX16065/MAX16066
  • Flash-Configurable Time Delays and Thresholds
  • -40°C to +85°C Extended Operating Temperature Range

Applications/Uses

  • Networking Equipment
  • Servers
  • Storage/RAID Systems
  • Telecom Equipment (Base Stations, Access)

Description

The MAX16068 flash-configurable system manager monitors and manages up to six system voltages simultaneously. The MAX16068 integrates an analog-to-digital converter (ADC). Device configuration information, including overvoltage and undervoltage limits, time delay settings is stored in nonvolatile flash memory. During a fault condition, fault flags and channel voltages can be automatically stored in the nonvolatile flash memory for later readback.

The internal 1% accurate, 10-bit ADC measures each input and compares the result to one overvoltage and one undervoltage limit. A fault signal asserts when a monitored voltage falls outside the set limits.

The MAX16068 supports a power-supply voltage of up to 14V and can be powered directly from the 12V intermediate bus in many systems.

The MAX16068 includes six programmable general-purpose inputs/outputs (GPIOs). GPIOs are flash configurable as a fault output, as a watchdog input or output, or as a manual reset.

The MAX16068 features nonvolatile fault memory for recording information during system shutdown events. The fault logger records a failure in the internal flash and sets a lock bit protecting the stored fault data from accidental erasure.

An SMBus™ or a JTAG serial interface configures the MAX16068. The MAX16068 is available in a 28-pin, 5mm × 5mm, TQFN package and is fully specified over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX16068: Typical Operating Circuit MAX16068: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .