MAX16066

12-Channel/8-Channel Flash-Configurable System Managers with Nonvolatile Fault Registers

Highly Integrated, 12-Channel/8-Channel, System-Management ICs with NV Fault Monitoring


Please check latest availability status for a specific part variant.

Description

The MAX16065/MAX16066 flash-configurable system managers monitor and sequence multiple system voltages. The MAX16065/MAX16066 can also accurately monitor (±2.5%) one current channel using a dedicated high-side current-sense amplifier. The MAX16065 manages up to twelve system voltages simultaneously, and the MAX16066 manages up to eight supply voltages. These devices integrate a selectable differential or single-ended analog-to-digital converter (ADC) and configurable outputs for sequencing power supplies. Device configuration information, including overvoltage and undervoltage limits, timing settings, and the sequencing order 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 read-back.

The internal 1% accurate 10-bit ADC measures each input and compares the result to one overvoltage, one undervoltage, and one early warning limit that can be configured as either undervoltage or overvoltage. A fault signal asserts when a monitored voltage falls outside the set limits. Up to three independent fault output signals are configurable to assert under various fault conditions.

Because the MAX16065/MAX16066 support a power-supply voltage of up to 14V, they can be powered directly from the 12V intermediate bus in many systems.

The integrated sequencer provides precise control over the power-up and power-down order of up to twelve (MAX16065) or up to eight (MAX16066) power supplies. Eight outputs (EN_OUT1–EN_OUT8) are configurable with charge-pump outputs to directly drive external n-channel MOSFETs.

The MAX16065/MAX16066 include eight/six programmable general-purpose inputs/outputs (GPIO_s). GPIO_s are flash configurable as dedicated fault outputs, as a watchdog input or output, or as a manual reset.

The MAX16065/MAX16066 feature 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 MAX16065/MAX16066. The MAX16065 is available in a 48-pin, 7mm x 7mm, TQFN package, and the MAX16066 is available in a 40-pin, 6mm x 6mm, TQFN package. Both devices are fully specified from -40°C to +85°C.
MAX16065, MAX16066: Typical Operating Circuit MAX16065, MAX16066: Typical Operating Circuit Enlarge+

Key Features

  • Operate from 2.8V to 14V
  • ±2.5% Current-Monitoring Accuracy
  • 1% Accurate 10-Bit ADC Monitors 12/8 Voltage Inputs
  • Single-Ended or Differential ADC for System Voltage/Current Monitoring
  • Integrated High-Side Current-Sense Amplifier
  • 12/8 Monitored Inputs with Overvoltage/Undervoltage/Early Warning Limit
  • Nonvolatile Fault Event Logger
  • Power-Up and Power-Down Sequencing Capability
  • Independent Secondary Sequence Block
  • 12/8 Outputs for Sequencing/Power-Good Indicators
  • Two Programmable Fault Outputs and One Reset Output
  • Eight General-Purpose Inputs/Outputs Configurable as:
    • Dedicated Fault Outputs
    • Watchdog Timer Function
    • Manual Reset
    • Margin Enable
  • SMBus (with Timeout) or JTAG Interface
  • Flash Configurable Time Delays and Thresholds
  • -40°C to +85°C Operating Temperature Range

Applications/Uses

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

MAX16065EVKIT: Evaluation Kit for the MAX16065

Quality and Environmental Data

Product Reliability Reports: MAX16066.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

  • MAX16066 BSDL Model
  • CAD Symbols and Footprints

  • MAX16066ETL+
  • MAX16066ETL+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX16136
    High-Precision Supervisory with Window Watchdog and Overvoltage Indicator

    • ±1% Accuracy
    • Enables ASIL Compliance at System Level
    • 0.5V to 5V Threshold Range with 20mV Increments

    MAX16160
    High-Accuracy 4-Channel, Any-Input Supervisory Circuits

    • Valid Active-Low RESET Logic State for Any Input Above 1V
    • ±1% Accuracy for All Inputs
    • Low 17μA Supply Current

    MAX16154
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16153
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16155
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16152
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX20480
    Automotive ASIL-D 7-Channel Power-System Monitor

    • Small Solution
    • High Precision
    • Highly Integrated