Analog Devices ADM6840
The ADM6840 is a sequencer and a supervisor that can sequence and monitor up to six or eight voltages. This device provides an adjustable delay when each supply is turned on and monitors the voltage of each power supply. The ADM6840 operates from a supply range of 2.7V to 15V and has an internal regulator output (ABP) that supplies power to internal circuits.FEATURES
● 2.7V to 15V Wide Operating Voltage Range● Monitor Up to Eight Voltages
● Sequence Up to Eight Voltages
● Power-Off in Reverse Order or Simultaneously
● Unlimited Daisy-Chain
● Capacitor-Adjustable Sequence Delay
● Factory-Trimmable Options Power-Good Timeout
● Resistor-Programmable Power-Supply ON Threshold (VSEQON_TH)
● Factory-Trimmable Options Power-Supply OFF Thresholds (VSEQOFF_TH)
● 0.8% Accuracy Voltage Monitoring Threshold (VMON_TH)
● Open-Drain Output
● POK Output for System Microcontroller Reset
● DONE Output for Sequencing Done Signal
● Bidirectional FAULT Input/Output
● 25-Bump WLP, 24L and 28L TQFN Package
● -40°C to +125°C Operating Temperature Range
APPLICATIONS
● Telecom Equipment● Test Equipment
● Servers and Network Cards
● Healthcare Imaging
● Industrial Sensors and Motor Controls
● FPGA/ASIC Power Supply Sequencing
● Microprocessor and Microcontroller Sequencing
● Multi-Supply Sequencing
GENERAL DESCRIPTION
The sequencing is enabled by two inputs, ON and OFF.