Isolation

Increase safety with higher reliability isolation at a lower system cost

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What technologies exist for galvanic isolation?

Galvanic isolation is a method of electrically separating two domains, allowing power or signals to transfer across the barrier without compromising human safety, while also preventing ground potential differences and improving noise immunity. TI’s portfolio of proprietary isolation techniques, including a robust capacitive SiO2 insulation barrier and integrated IC transformer-based magnetic isolation, helps exceed Verband der Automobilindustrie (VDA), Canadian Standards Association (CSA) and Underwriters Laboratory (UL) standards without compromising performance.

Addressing High-Voltage Design Challenges with Reliable and Affordable Isolation

High-voltage designs come with their own unique challenges. See how TI's magnetic and capacitive isolation technologies deliver greater lifetimes at a lower system cost for isolated systems in EV, grid infrastructure, factory automation and motor drive applications. 

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Benefits of TI's isolation technology

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Improved system robustness & reliability

TI’s portfolio of high-voltage isolated products achieves low latency, excellent common-mode transient immunity and robust performance.

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Lower system cost

TI’s isolation technologies reduce bill of materials, lowering system cost and enabling significant solution size improvements. 

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Scalability 

TI's packaging innovations and globally-owned manufacturing footprint help bring functional, basic, and reinforced isolation capabilities to more analog IC functions.

Different by design

Isolation's impact is tangible, but at TI, we know there's room to improve. Watch this short video to see what must evolve to keep reliability and affordability at the forefront of isolated designs. 

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Delivering innovation for nearly a quarter of a century

TI isolation technology timeline

Featured isolation products

NEW Solid-state relays TPSI2140-Q1 PREVIEW Automotive 1400-V, 50-mA, isolated switch with 2-mA avalanche rating
NEW Isolated comparators AMC23C12 PREVIEW Fast-response, reinforced, isolated window comparator with adjustable threshold and latch function
NEW Isolated DC/DC converters & modules UCC14240-Q1 PREVIEW Automotive, 1.5-W, 24V-Vin, regulated, 3-kVRMS isolated DC-DC module with integrated transformer
NEW Signal isolators with integrated power ISOW7741 ACTIVE Low-emissions, low-ripple, quad-channel, 3/1, reinforced digital isolator with integrated power

Featured reference designs for isolation

Reference design
Overcurrent and overtemperature protection for AC solid state relay reference design

This reference design shows how to achieve overcurrent and overtemperature protection for a solid-state relay. The reference design features the TPSI3050-Q1 5-kVRMS reinforced isolated switch driver. TPSI3050-Q1 device integrates a laminate transformer to achieve isolation while transferring signal (...)

Reference design
Automotive SPI-programmable gate driver and bias supply with integrated transformer reference design
This reference design provides isolated-bias supply and isolated-gate driver for power switches in traction inverters and onboard chargers. Both the bias power and driver provide the high isolation (3-kV RMS for one minute) needed for 800-VDC bus application. The isolated bias provides 24 VDC both (...)
Reference design
AFE for insulation monitoring in high-voltage EV charging and solar energy reference design
This reference design features an electric bridge DC insulation monitoring (DC-IM) method which allows an accurate symmetrical and asymmetrical insulation leakage detection mechanism and an isolation resistance detection mechanism. We present a new generation of isolated amplifiers and switchers (...)

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