The solid state relay 24V AC Switch reference design is a single relay replacement that enables efficient power management for a low power alternative to standard electromechanical relays. The OFF-mode provides energy to the system controller and the ON mode can switch fast enough to allow backup battery charging where electromechanical relays cannot. The internal transformer enables isolation and a voltage multiplier ensures enough current to control other relays in the rest of the system.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
Reference design overview and verified performance test data
Detailed overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Solid-State Relay (SSR) 24-VAC Switch with Galvanic Isolation Design Guide (Rev. B) | Mar 8, 2016 | |
| Technical article | How to power your thermostat using solid state relays | PDF | HTML | Aug 11, 2016 | |
| Technical article | A modern approach to solid-state relay design | PDF | HTML | Jul 26, 2016 | |
| Technical article | Click! Clack! What’s the setback in your thermostat? | PDF | HTML | Jun 28, 2016 |
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