General Description

The MAX6870/MAX6871 EEPROM-configurable, multi voltage supply sequencers/supervisors monitor several voltage detector inputs, two auxiliary inputs, and four general-purpose logic inputs. The MAX6870/MAX6871 feature programmable outputs for highly configurable power-supply sequencing applications. The MAX6870 features six voltage detector inputs and eight programmable outputs, while the MAX6871 features four voltage detector inputs and five programmable outputs. Manual reset and margin disable inputs offer additional flexibility.

Features

♦ Six (MAX6870) or Four (MAX6871) Configurable

   Input Voltage Detectors

   One High Voltage Input (+1.25V to +7.625V or

   +2.5V to +13.2V Thresholds)

   One Bipolar Voltage Input (±1.25V to ±7.625V

   or ±2.5V to ±15.25V Thresholds)

   Four (MAX6870) or Two (MAX6871) Positive

   Voltage Inputs (+0.5V to +3.05V or +1V to

   +5.5V Thresholds)

♦ Four General-Purpose Logic Inputs

♦ Two Configurable Watchdog Timers

♦ Eight (MAX6870) or Five (MAX6871)

   Programmable Outputs

   Active-High, Active-Low, Open-Drain, Weak

   Pullup, Push-Pull, Charge-Pump

   Timing Delays from 25µs to 1600ms

♦ 10-Bit Internal ADC Monitors the Input Voltage

   Detectors and Two Auxiliary Inputs

♦ Margining Disable and Manual Reset Controls

♦ Internal 1.25V Reference or External Reference Input

♦ 4kb Internal User EEPROM

   Endurance: 100,000 Erase/Write Cycles

   Data Retention: 10 Years

♦ I2C/SMBus-Compatible Serial

   Configuration/Communication Interface

♦ ±1 Threshold Accuracy

Applications

   Telecommunications/Central Office Systems

   Networking Systems

   Servers/Workstations

   Basestations

   Storage Equipment

   Multimicroprocessor/Voltage Systems