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

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

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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.
MAX16068: Typical Operating Circuit MAX16068: Typical Operating Circuit Enlarge+

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


  • Networking Equipment
  • Servers
  • Storage/RAID Systems
  • Telecom Equipment (Base Stations, Access)
Product Reliability Reports: MAX16068.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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