General Description

The MAX6876 EEPROM-configurable, multivoltage power tracker/supervisor monitors four system voltages and ensures proper power-up and power-down conditions for systems requiring voltage tracking and/or sequencing. The MAX6876 provides a highly configurable solution as key thresholds and timing parameters are programmed through an I2C interface and these values are stored in internal EEPROM. The MAX6876 also provides supervisory functions and an overcurrent detection circuit.

Features

♦ Tracking/Sequencing for Up to Four Supply

   Voltages (With One MAX6876 Device) and

   Tracking for Up to 16 Supply Voltages (Using

   Four MAX6876 Devices)

♦ EEPROM-Configurable Tracking/Sequencing

   Control

♦ Bus Voltage Independent Operation (MAX6876 Is

   Powered from the Tracked Supply Voltages or

   Always-On Supply)

♦ EEPROM-Selectable Undervoltage/Overvoltage

   Lockout Thresholds for Each Input Supply

♦ EEPROM-Selectable Power-Up/Down Slew Rate

♦ Programmable Power-Good Output Thresholds

   and Timing

♦ Global Adjustable Undervoltage Lockout or Logic

   ENABLE Input

♦ Independent Internal Charge Pumps to Enhance

   External n-Channel FETs (VGATE_SOURCE = 5V)

♦ Post Power-Up Selectable Overcurrent Detection

♦ 0.5V to 5.5V IN_ Threshold Range

♦ ±1.5 Threshold Accuracy

♦ I2C/SMBus™-Compatible Serial Interface

♦ Small 6mm x 6mm, 36-Pin Thin QFN Package

Applications

   Multivoltage Systems

   Networking Systems

   Telecom

   Storage Equipment

   Servers/Workstations