MAX16067

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

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

Data Sheet (Rev. 2)
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Overview

  • 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
  • Power-Up and Power-Down Sequencing Capability
  • 6 Outputs for Sequencing/Power-Good Indicators
  • 3 Configurable Charge-Pump Outputs
  • 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

The MAX16067 flash-configurable system manager monitors and sequences multiple system voltages. The MAX16067 manages up to six system voltages simultaneously. The MAX16067 integrates an analog-to-digital converter (ADC) and configurable outputs for sequencing power supplies. Device configuration information, including overvoltage and undervoltage limits, time delay 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 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 MAX16067 supports a power-supply voltage of up to 14V and 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 six power supplies. Three outputs (EN_OUT1 to EN_OUT3) are configurable with charge-pump outputs to directly drive external n-channel MOSFETs.

The MAX16067 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 MAX16067 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 MAX16067. The MAX16067 is available in a 32-pin, 5mm x 5mm, TQFN package and is fully specified over the -40°C to +85°C extended temperature range.

Applications

  • Networking Equipment
  • Servers
  • Storage/RAID Systems
  • Telecom Equipment (Base Stations, Access)
MAX16067
6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers
MAX16067: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 1

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Software Resources

Device Drivers 1

Hardware Ecosystem

Parts Product Life Cycle Description
Power System Management (PSM) & Sequencers 2
MAX16047
PRODUCTION 12-/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers
MAX16049
12-/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers
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Tools & Simulations

BSDL Model File 1

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