Maxim Integrated Products, Inc. (NASDAQ: MXIM) introduces Corona (MAXREFDES12 #), a reference design for programmable logic controller (PLC) digital input subsystems, which effectively reduces power consumption, system cost, and size. This design reduces the number of isolation channels and enables analog integration of industrial control and automation applications.

One way to reduce the size of a PLC I / O solution is to reduce the number of digitally isolated channels. Corona reference design integrates three Maxim devices including transformer drivers, effectively reducing the number of isolation channels, eliminating optocouplers and discrete components that consume more power, reducing power consumption by 16% and reducing solution size by 38 %, Cost reduction by 23%. The Maxim devices used in the Corona reference design are specifically designed for harsh industrial applications and have an operating temperature range of -40 ° C to + 125 ° C, making them ideal for PLC and other automation applications.

   Maxim Corona Block Diagram

Main advantages
Analog integration: Maxim's digital isolators reduce the number of isolation channels to four, eliminating the need for optocouplers; digital input serializers are optimized for 16-, 24-, and 32-input designs, and the SPI bus supports daisy-chain architecture to further reduce isolation Number of channels, saving more design resources
Lower power consumption: the industry's lowest power consumption index; power consumption is 16% lower than traditional designs
Lower cost: Compared with traditional designs, the total number of devices is reduced by 38, so the cost of this integrated solution is lower
Smaller size: 51% fewer components than traditional designs

Corona Integrated Device
MAX31911: 8-channel, industrial digital input signal level shifter / serializer with the industry's lowest power consumption index, effectively reducing the number of circuit board components
MAX14850: 6-channel digital isolator has low power consumption characteristics and stable performance in high temperature environments; passed UL1577, CSA, IEC 60747-5-2 safety certification; replaces optocoupler devices with limited LED life, and can run 5 times longer
MAX13256: 36V H-bridge Transformer Driver Simplifies Isolated Power Supply Design

Maxim Corona terminal application

Industry evaluation
Tony Partow, senior business manager at Maxim Integrated, said, "The MAX31911 power supply current consumption in the Corona design is 80% lower than competing solutions, demonstrating the perfect fusion of our expertise in analog integration and advanced high-voltage semiconductor processes. Reference design can accelerate the design process and provide innovative solutions. "
Susie Inouye, research director and founder of Databeans, said: "The importance of reference design is increasing, and designers can develop advanced solutions and shorten the development cycle through reference design." Maxim Integrated Products, Inc. (NASDAQ: MXIM) introduces Corona (MAXREFDES12 #), a reference design for programmable logic controller (PLC) digital input subsystems, which effectively reduces power consumption, system cost, and size. This design reduces the number of isolation channels and enables analog integration of industrial control and automation applications.

One way to reduce the size of a PLC I / O solution is to reduce the number of digitally isolated channels. Corona reference design integrates three Maxim devices including transformer drivers, effectively reducing the number of isolation channels, eliminating optocouplers and discrete components that consume more power, reducing power consumption by 16% and reducing solution size by 38 %, Cost reduction by 23%. The Maxim devices used in the Corona reference design are specifically designed for harsh industrial applications and have an operating temperature range of -40 ° C to + 125 ° C, making them ideal for PLC and other automation applications.

   Maxim Corona Block Diagram

Main advantages
Analog integration: Maxim's digital isolators reduce the number of isolation channels to four, eliminating the need for optocouplers; digital input serializers are optimized for 16-, 24-, and 32-input designs, and the SPI bus supports daisy-chain architecture to further reduce isolation Number of channels, saving more design resources
Lower power consumption: the industry's lowest power consumption index; power consumption is 16% lower than traditional designs
Lower cost: Compared with traditional designs, the total number of devices is reduced by 38, so the cost of this integrated solution is lower
Smaller size: 51% fewer components than traditional designs

Corona Integrated Device
MAX31911: 8-channel, industrial digital input signal level shifter / serializer with the industry's lowest power consumption index, effectively reducing the number of circuit board components
MAX14850: 6-channel digital isolator has low power consumption characteristics and stable performance in high temperature environments; passed UL1577, CSA, IEC 60747-5-2 safety certification; replaces optocoupler devices with limited LED life, and can run 5 times longer
MAX13256: 36V H-bridge Transformer Driver Simplifies Isolated Power Supply Design

Maxim Corona terminal application

Industry evaluation
Tony Partow, senior business manager at Maxim Integrated, said, "The MAX31911 power supply current consumption in the Corona design is 80% lower than competing solutions, demonstrating the perfect fusion of our expertise in analog integration and advanced high-voltage semiconductor processes. Reference design can accelerate the design process and provide innovative solutions. "
Susie Inouye, research director and founder of Databeans, said: "The importance of reference design is increasing, and designers can develop advanced solutions and shorten the development cycle through reference design."

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