FT3001MPX Integrated Circuits (ICs)

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Supervisors are an important category of PMICs (Power Management ICs) that perform a variety of tasks such as power-up sequencing, system reset, voltage monitoring, fault detection and recovery, etc. FT3001MPX is a supervisor PMIC from FTDI Chip that has been designed for automated system power-up and fault recovery tasks. This application note provides an overview of the FT3001MPX supervisor and its application field and working principle.

The FT3001MPX is a fully integrated supervisor chip with various features such as power-up sequencing control, voltage monitoring, system reset control and fault monitoring capabilities. It utilizes an Automatic Startup-Sequence (ASS) which features an integrated “Smart Reset” and “Power-up Sequence Controller”. The ASS capabilities provide configurable sequencing-upon-power up and fault recovery, enabling power up timing control with precise and reliable system sequencing. The ASS module supports up to three configurable resets, with active low and active high reset output signals.

The FT3001MPX provides a total of four voltage input lines (VSENSE1, VSENSE2, VSENSE3, VSENSE4) which can be used to measure up to four external voltages. These voltage input lines allow for precise voltage monitoring and can also be used for manual system reset if necessary. The chip also provides a configurable interrupt logic, which can be used to indicate system faults. Additionally, the FT3001MPX includes a programmable watchdog timer that can generate an active low interrupt / reset signal with a configurable time delay.

The FT3001MPX can be used in a wide range of applications, from small embedded systems to larger multi-processor systems. In particular, this supervisor chip is well suited for systems where precise power-on sequencing and fault recovery is needed. Its integrated system reset capability, combined with its precise voltage detection capabilities, make it excellent choice for system power-up sequencing, voltage monitoring, and fault recovery.

When it comes to the setup and working principle of the FT3001MPX supervisor, the process is quite straightforward. When a system powers up, the ASS module automatically detects and processes the power-on event, performing system reset and voltage monitoring as appropriate. The FT3001MPX can be configured to detect voltage levels across the VSENSE lines, and can generate interrupts or system resets as specified. The watchdog timer can also be configured to issue a system reset if the voltage levels remain below thresholds for longer than expected. This can be used to prevent fault conditions from occurring in the first place.

In addition to the VSENSE inputs, the FT3001MPX PMIC also supports external logic signals, allowing for further programming flexibility. This external logic can be used to define the reset critical levels and to select between external and internal references for reset thresholds. This can be useful for applications that require precise reset timing.

Overall, the FT3001MPX supervisor PMIC is a reliable and versatile chip that is capable of providing accurate system sequencing and fault recovery. Its integrated voltage monitoring, system reset and watchdog features provide precise control over power-on sequencing, enabling fast and reliable system start-up and fault recovery. Its configurable reset levels and external logic signals can be used to further customize the reset parameters, allowing the FT3001MPX to meet a wide range of application requirements.

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