Power Supervision | Cypress Semiconductor
Power Supervision
Block Diagram
Power Supervision plays a critical role in modern communications and industrial systems such as routers, switches, storage systems, servers, base stations, industrial automation equipment and medical imaging equipment. These systems require multiple power supply rails for their various components including ASICs, PHY devices, FPGAs, CPUs, memory modules, and peripheral I/O devices.
Power Supervision is a mission-critical function for system reliability. System power must work flawlessly. The designer needs to ensure that all the power rails are ramped up and down in the proper sequence with proper delays, they are monitored for irregular activity and fault detection and response must be fast and flawless.
Your mission-critical systems need fail-safe Power Supervision
Design Considerations
Design Challenges
The race to build higher performance systems and the demand for reliable energy-efficient products is posing new challenges to designers.
-
Low-voltage power rails demand higher accuracyMonitoring voltage and current accuracy is critical to system reliabilityTrimming voltage accuracy is critical to maintain optimal voltage rangesThe latest FPGAs and DSPs have low-voltage rails (1 V and below), requiring…Sub-0.5% (5-mV) monitoring accuracy (need expensive analog ICs)Sub-1.0% (10-mV) real-time trimming accuracy (need more expensive analog ICs)
-
The number of power rails is increasing20+ power rails per board need Power SupervisionRequiring up to 10 Power Supervision ICs per boardMore ICs = more points of failure
-
Each board requires complex customizationDifferent number of power railsDifferent Voltage Sequencing, Power Monitoring, and Trimming parametersFault Detection and Fault Logging referenced to custom thresholdsPower Supervision and analog ICs from multiple vendors complicate and slow development
PSoC solves these problems
PSoC monitors voltage and current with 0.26% accuracy and performs real-time Trimming with 0.60% accuracy
PSoC supports 32 power rails per chip, 3x other Power Supervision ICs, reducing points of failures
PSoC Component Configuration Tools create customized power rail configurations with Event-Based Sequencing
PSoC creates a one-chip, customized, fail-safe Power Supervision solution
Getting Started
- Select the right PSoC for your application (see table below)Key FeaturesPSoC 5PSoC 3PSoC 1
Number of voltage rails sequenced up to 32up to 32up to 20Number of voltage and current monitoring inputs up to 32up to 32up to 24ADC based voltage and current monitoring accuracy 0.26%0.26%2%Number of trimming/margining outputs up to 32up to 32up to 12EEPROM fault and event log size up to 2KBup to 2KBup to 2KBEmbedded MCU Core ARM Cortex - M38051M8C - Watch a PSoC Power Supervision Training Video
- Download Install the PSoC Integrated Design Environment
- Download the PSoC Power Supervision Application Note
- Purchase the PSoC Power Supervision Kit and Prototype the Example Project Design (bundled with kit)
- Configure your Design using Power Supervision Components or User Modules (Refer to the Power Supervision Application Note)
Integrate Additional Functions with PSoC
Apart from the standard Power Supervision functionality PSoC enables integration of additional functions. This could enable further BOM integration and cost savings (some examples below)
Fan Control & Thermal Management: AN66627 (PSoC 3 and PSoC 5), AN78692 (PSoC 1)
Temperature Sensing: Temperature Sensing & Control Solution
Miscellaneous Functions: I2C Mux, I2C Expander, I2C Level Translator, I2C Bridge, Reset control logic, MDIO Mux, MDIO Expander, LED Test & Drive, USB-UART Maintenance Ports, SGPIO Backplane & Enclosure Management. Contact your local Sales Representative
Application Notes
Application Note
|
PSoC 5
|
PSoC 3
|
PSoC 1
|
Power Supervision Solution
|
Kit
|
PSoC 5
|
PSoC 3
|
PSoC 1
|
PSoC Development Kit
|
|||
PSoC Power Supervision Kit
|
Application Notes
-
AN76474 demonstrates how you can quickly implement and customize a full-featured power supervisor that supports up to 13 power supply rails with Cypress's PSoC® 3.
-
AN78646 describes the key concepts of power management, including voltage sequencing, fault detection, voltage and current monitoring, real-time trimming, and i2c host communication. the associated example project delivers a fully integrated power management system solution.
Development Kits/Boards
-
The CY8CKIT-001 PSoC® Development Kit (DVK) provides a common development platform where you can prototype and evaluate different solutions using any one of the PSoC 1, PSoC 3, PSoC 4, or PSoC 5 architectures.
-
The CY8CKIT-030 PSoC® 3 Development Kit enables you to evaluate, develop and prototype high precision analog, low-power and low-voltage applications powered by Cypress’s CY8C38 high precision analog device family.
-
The PSoC Power Supervision Expansion Board Kit enables you to evaluate System Power Supervision functions and capabilities of the PSoC architecture.
-
PSoC Programmer 3.24 or later and KitProg 2.14 or later are required to program the PSoC 4200L device on the PSoC 4 L-Series Pioneer Kit. PSoC Creator installation or the kit installation automatically installs PSoC Programmer and KitProg drivers.
-
The CY8CKIT-050 PSoC® 5LP Development Kit enables you to evaluate, develop and prototype high precision analog, low-power and low-voltage applicati
Software and Drivers
- PSoC Creator
PSoC Creator is a state-of-the-art software development IDE combined with a revolutionary graphical design editor to form a uniquely powerful hardware/software co-design environment.
- PSoC Designer
PSoC Designer is the revolutionary Integrated Design Environment (IDE) that you can use to customize PSoC to meet your specific application requirements. PSoC Designer software accelerates system bring-up and time-to-market.