MAX16032
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MAX16032

EEPROM-Based System Monitors with Nonvolatile Fault Memory

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EEPROM-Configurable Devices Maximize Uptime in High-Reliability Systems such as Network, Telecom, and Server Equipment

Part Details
Features
  • Supply Voltage Operating Range of 2.85V to 14V
  • Monitors Up to Eight Voltages (Single-Ended or Pseudo-Differential) with 1% Accuracy
  • EEPROM-Configurable Limits
    • Two Undervoltage and Two Overvoltage
    • Two Overtemperature
    • Two Overcurrent
  • High-Side Current-Sense Amplifier with Overcurrent Output (MAX16031 Only)
  • Monitors Up to Three Temperatures (1 Internal/2 Remote)
  • Nonvolatile Fault Memory Stores Fault Conditions for Later Retrieval
  • Two Additional Configurable Fault Outputs
  • Two Configurable GPIOs
  • SMBus/I²C-Compatible Interface with Active-Low ALERT Output and Bus Timeout Function
  • JTAG Interface
  • 7mm x 7mm, 48-Pin TQFN Package
Additional Details
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The MAX16031/MAX16032 EEPROM-configurable system monitors feature an integrated 10-bit analog-to-digital converter (ADC) designed to monitor voltages, temperatures, and current in complex systems. These EEPROM-configurable devices allow enormous flexibility in selecting operating ranges, upper and lower limits, fault output configuration, and operating modes with the capability of storing these values within the device.

The MAX16031 monitors up to eight voltages, three temperatures (one internal/two external remote temperature diodes), and a single current. The MAX16032 monitors up to six voltages and two temperatures (one internal/one remote temperature diode). Each of these monitored parameters is muxed into the ADC and written to its respective register that can be read back through the SMBus™ and JTAG interface.

Measured values are compared to the user-configurable upper and lower limits. For voltage measurements, there are two undervoltage and two overvoltage limits. For current and temperature, there are two sets of upper limits. Whenever the measured value is outside its limits, an alert signal is generated to notify the processor. Independent outputs are available for overcurrent, overtemperature, and undervoltage/overvoltage that are configured to assert on assigned channels. There are also undedicated fault outputs that are configured to offer a secondary limit for temperature, current, or voltage fault or provide a separate overvoltage output.

During a major fault event, such as a system shutdown, the MAX16031/MAX16032 automatically copy the internal ADC registers into the nonvolatile EEPROM registers that then are read back for diagnostic purposes.

The MAX16031/MAX16032 offer additional GPIOs that are used for voltage sequencing, additional fault outputs, a manual reset input, or read/write logic levels. A separate current-sense amplifier with an independent output allows for fast shutoff during overcurrent conditions. The MAX16031/MAX16032 are available in a 7mm x 7mm TQFN package and are fully specified from -40°C to +85°C.

Applications

  • Networking
  • Servers
  • Storage Systems
  • Telecom
  • Workstations

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX16031EVKIT

Evaluation Kit for the MAX16031

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MAX16031EVKIT

Evaluation Kit for the MAX16031

Evaluation Kit for the MAX16031

Features and Benefits

  • USB Interface to Host PC
  • Easy-to-Use GUI Software
  • Facilitates Programming of MAX16031s on Prototype Boards
  • LEDs Indicate Each Output's State
  • On-Board DAC Simulates Monitored Voltages
  • Convenient Test Points and Headers for Easy Evaluation
  • Fully Assembled and Tested

Product Detail

The MAX16031 evaluation kit (EV kit) provides a proven printed-circuit board (PCB) layout that facilitates evaluation of the MAX16031 EEPROM-based system monitor with nonvolatile fault memory. This EV kit is a fully assembled and tested surface-mount board.

The EV kit includes an on-board USB-to-JTAG and I²C interface facilitating communications between the host PC and the MAX16031. A DAC connected to the monitoring inputs and the status LEDs connected to each programmable output make it easy to evaluate the various monitoring functions of the MAX16031.

This EV kit data sheet assumes basic familiarity with the MAX16031. Refer to the MAX16031/MAX16032 IC data sheet for more detailed information.

Applications

  • Networking
  • Servers
  • Storage Systems
  • Telecom
  • Workstations

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