Sequencing circuits can be implemented using several approaches, including cascading voltage converters through their enable pins, utilizing a microcontroller, employing a small FPGA, or using a dedicated sequencer IC.
Power sequencers are commonly used in systems containing FPGAs, GPUs, CPUs, DSPs, and SoCs, where controlled power-up and power-down sequences are required. For applications requiring multiple power supply rails, the ADM6840 offers a simple sequencing and supervision solution that supports up to eight voltages without the need for software development or programming.
Figure1: The ADM6840 sequencer (credits: Analog Devices).
Voltage and Temperature range of The ADM6840 sequencer is as follows.
Temperature range: between –40°C and +125°C.
Voltage range is: between 2.7 V and 15 V.
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