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