Power Supervision

Design Challenges

The race to build higher performance systems and the demand for reliable energy-efficient products is posing new challenges to designers.

1. Low-voltage power rails demand higher accuracy
   Monitoring voltage and current accuracy is critical to system reliability
   Trimming voltage accuracy is critical to maintain optimal voltage ranges
   The 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)
2. The number of power rails is increasing
   20+ power rails per board need Power Supervision
   Requiring up to 10 Power Supervision ICs per board
   More ICs = more points of failure
3. Each board requires complex customization
   Different number of power rails
   Different Voltage Sequencing, Power Monitoring, and Trimming parameters
   Fault Detection and Fault Logging referenced to custom thresholds
   Power 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

1. Select the right PSoC for your application (see table below)
   

   Key Features	PSoC 5	PSoC 3	PSoC 1
   Number of voltage rails sequenced	up to 32	up to 32	up to 20
   Number of voltage and current monitoring inputs	up to 32	up to 32	up to 24
   ADC based voltage and current monitoring accuracy	0.26%	0.26%	2%
   Number of trimming/margining outputs	up to 32	up to 32	up to 12
   EEPROM fault and event log size	up to 2KB	up to 2KB	up to 2KB
   Embedded MCU Core	ARM Cortex - M3	8051	M8C

2. Watch a PSoC Power Supervision Training Video
3. Download Install the PSoC Integrated Design Environment
4. Download the PSoC Power Supervision Application Note
5. Purchase the PSoC Power Supervision Kit and Prototype the Example Project Design (bundled with kit)
6. 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