Power supervision plays a critical role in modern communications systems such as routers, switches, storage systems, servers and base stations. These systems require multiple power supply rails for their various components including ASICs, PHY devices, FPGAs, CPUs, memory modules, and peripheral I/O devices. Cypress’s PSoC® 3 Power Supervisor controls and monitors all of these rails and provides critical system functions:
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Voltage sequencing
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Over-voltage (OV) and under-voltage (UV) fault detection using a high-speed window comparator
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ADC-based power converter output voltage and load current measurements
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Trimming
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Margining
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Data reporting over the Power Management Bus (PMBus™) host interface
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PSoC 3 Power Supervisor Block Diagram |
PMBus Power Control Panel |
Video Series on PSoC® 3 Power Supervisor
This 4 part webisode series walks through the Power Supervisor solution running on PSoC 3 using the CY8CKIT-035 PSoC Power Management Expansion Board Kit (EBK). It’s a sneak preview of the application note AN76474.The series walks through each of the key IP building blocks that make up a full-featured Power Supervisor solution using PSoC.
PSoC Today! Power Supervisor Part I
PSoC Today! Power Supervisor Part II
PSoC Today! Power Supervisor Part III
PSoC Today! Power Supervisor Part IV
The following table provides the list of Devices and Development kits supported for this projects included in the application note:
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Project
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Device
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Development Kit
CY8CKIT-xxx
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Architecture
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Supported Device
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Silicon Revision
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PwrSpvr035_001.hex
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CY8C3866AXI-040
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ES3, Prod
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YES
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NO
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YES
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PwrSpvr035_030.hex
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CY8C3866AXI-040
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ES3, Prod
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NO
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YES
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YES
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PwrSpvr.hex
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CY8C3666AXI-036
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ES3, Prod
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NA*
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NA*
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NA*
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* Requires custom hardware. Refer to Application Note for details.
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