New Galvanic Isolated Smart Power Switch Assures Superior Safety


ST’s octal high-side smart power switch with SPI port have in-built protection features for applications in conventional factory automation or Industry 4.0 smart-factory scenarios.

STMicroelectronics extended its family of galvanic isolated hide-side switches by introducing a new smart power switch.


ST’s new ISO8200AQ octal high-side smart power switch offers maximum safety and robustness in demanding applications such as industrial PLCs, PCs, or peripherals, and numeric-control machines in conventional factory automation or Industry 4.0 smart-factory scenarios.

The new switch enhances diagnostics and system management by providing a 20 MHz SPI port allowing both per-channel over-temperature signalization and efficient daisy-chaining of multiple devices.

Galvanic Isolation
Built-in 2500Vrms galvanic isolation assures superior safety and saves space during final application.

One host control multiple switches
As the smart power switch comes with SPI port, it allows one host to efficiently control multiple switches.

Good alert system
The power-good output alerts the control system in case the supply rail falls below a preset safe minimum threshold voltage, and complements the fault output pin that indicates communication errors or over-temperature conditions.

The switch has eight channels, having on-resistance of 0.12Ω and maximum current rating of 0.7A, to manage all kinds of resistive, inductive, or capacitive loads with minimal power loss or heat dissipation.

Built-in protection features of the switch further enhance safety, including short-circuit, channel over-temperature, case over-temperature, and loss of ground or supply protection.

Additionally, the new switch satisfies the requirements for IEC 61131-2 relating to functional properties and characteristics of programmable controllers.

Support Tools
An extensive range of support tools are available for ISO8200AQ to help users get the best performance.

Graphics-Centric MCUs Target HMI Apps

The ISO8200AQ is available in 9mm x 11mm 32-pin TFQFPN32, with price starting from $3.125 for orders of 1000 pieces.

For more information click here.



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