Isolated DC/DC converters & modules
Simplify your isolated DC/DC design
Browse by category
Select by device type
Modules
Our isolated power modules increase performance and reduce solution size. Featured products include integrated transformer technology with certified isolation.
Converters
Easily generate one or more isolated positive and negative supplies using a small number of external components. An optocoupler is not required, and devices can be used for isolated applications.
Transformer drivers
Our compact push-pull and LLC transformer drivers provide a simple, low-EMI, isolated power supply and are ideal for cost-constrained applications when compared to integrated isolated power solutions.
Related categories
New products
Automotive, 1.5-W, 12-Vin to 15-Vin, 12-Vout to 15-Vout high-density > 3-kVRMS isolated DC/DC module
Approx. price (USD) 1ku | 4.2
Automotive, 1.5-W, 12-V to 15-V VIN, 12-V to 15-V VOUT high-density >5-kVRMS isolated DC/DC mo
Approx. price (USD) 1ku | 4.62
Automotive, 2.5-W, 24-Vin, 25-Vout high-density > 5-kVRMS isolated DC-DC module
Approx. price (USD) 1ku | 5.31
Automotive, 2.5-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
Approx. price (USD) 1ku | 4.83
Automotive, 1.5-W, 15-Vin, 25-Vout high-density > 5-kVRMS isolated DC/DC module
Approx. price (USD) 1ku | 4.62
Automotive, 2-W, 24-V VIN, 25-V VOUT high-density >5-kVRMS isolated DC/DC module
Approx. price (USD) 1ku | 4.62
Power trends
Shrink your power solution, maximize efficiency
These unique solutions can shrink your power solution by as much as 80% and maximize efficiency in high-voltage industrial applications with high density. The 16-pin SOIC package measures 10.3 mm x 10.3 mm x 2.65 mm and offers 60% efficiency—twice that of competing devices of similar size—and twice the power density of comparative isolated power modules. Delivering 0.5 W in the new architecture improves reliability, enables a small BOM and simplifies board layout.
Solving space challenges with isolated bias supplies
Understanding the trade-offs and technologies to increase power density (Rev. C)
Featured products for power density
Time-saving and cost-effective EMI reduction
These devices offer ultra-low EMI and eliminate external filter components such as low-dropout regulators and ferrite beads normally required to meet EMI certification, which significantly reduces component selection and design time.
Fundamentals of EMI Requirements for an Isolated DC/DC Converter
A simple, robust, and low-EMI solution for inverter gate-driver bias supplies
Isolation for robust and reliable system operation
The devices are available with reinforced or wide isolation and a wide temperature range (extended –40°C to +125°C) to deliver more power in extreme conditions.
Addressing High-Volt Design Challenges w/ Reliable and Affordable Isolation Tech (Rev. B)
How to find the right isolation solution for your application
Featured products for isolation
Technical resources
Power Through the Isolation Barrier: The Landscape of Isolated DC/DC Bias Power (Rev. A)
Time-Saving and Cost-Effective Innovations for EMI Reduction
Save space with our isolated bias supplies
Discover featured applications
Extend driving ranges and reduce weight in EV traction inverter systems with our isolated bias supply converters and modules, which enable efficient and reliable powertrain solutions
To support the need for higher efficiency and reliability while reducing the overall weight of the powertrain (which helps increase EV driving ranges), traction inverter designs now include SiC FETs, 800-V batteries and an increased emphasis on integration (which helps optimize costs).
Our isolated bias supplies:
- Achieve 40% smaller bill of materials than typical flyback bias solutions with integrated bias modules.
- Enable high efficiency SiC operation with ±1.3% regulation.
- Support fast-switching SiC FETs, with >150 V/ns common-mode transient immunity.
Featured resources
- UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
- UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
- UCC12051-Q1 – Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer
Enable high-power-density powertrain subsystems with integrated isolated bias supply converters and modules
EV powertrain designers are adopting wide-bandgap technologies to support higher voltages, horsepower and driving ranges. Our isolated bias supplies provide the features to support optimal FET operation for lower weight and size in high density OBCs and DC/DC converters.
Our isolated bias supplies:
- Achieve higher power density with >150 V/ns common-mode transient immunity to support fast-switching SiC and gallium nitride (GaN) FETs.
- Enable 40% smaller bill of materials than typical flyback solutions with integrated bias supplies.
- Offer ±1.3% accuracy to promote efficient SiC operation.
Featured resources
- UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
- UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
- UCC12051-Q1 – Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer
- UCC14240-Q1 Simplifies HEV, EV, Bias Supply Design for Isolated Gate Drivers – Application note
- Isolated bias supply solutions for isolated gate drivers – More literature
Develop efficient, high-density modular power converters with our isolated bias supply converters and modules
Higher driving ranges and car battery voltages in electric vehicles demand fast, reliable and efficient charging stations to support quick charging requirements.
Our isolated bias supplies:
- Offer faster charging with >150 V/ns common-mode transient immunity to support SiC and gallium nitride (GaN) FETs.
- Reduce system cost and simplify power converter designs with integrated bias supply modules.
- Decrease charging station standby power requirements with enable/disable features.
Featured resources
- TIDA-01606 – 10-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design
- PMP23223 – Smart isolated gate driver with bias supply reference design
- PMP22845 – Isolated 5-V bias supply for automotive CISPR 25, class 5 emissions, reference design
- UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
- UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
- UCC12050 – 500-mW, high-efficiency, 5-kVRMS isolated DC/DC converter
Develop efficient and reliable high-voltage inverters with our isolated bias supply modules and converters
Wider voltage and power ranges in solar systems are leading to the implementation of high-voltage bidirectional power-conversion stages and wide-bandgap semiconductors.
Our isolated bias supplies:
- Can withstand high junction temperatures for maximum drive capabilities in the harshest environments.
- Create sleek storage systems with >150 V/ns of common-mode transient immunity to support SiC and gallium nitride (GaN).
- Offer basic and reinforced isolation for high reliability and protection.
Featured resources
- PMP23124 – 12-VIN dual-output-bias supplies reference design
- TIDA-01606 – 10-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design
- PMP23223 – Smart isolated gate driver with bias supply reference design
- UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
- UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
- UCC12050 – 500-mW, high-efficiency, 5-kVRMS isolated DC/DC converter
Design high-performance, power-dense heating and cooling systems for electric vehicles (EVs) with our isolated bias supply modules and converters
The automotive industry's transition away from combustion engines requires reworking heating, ventilation and air-conditioning systems to support high-voltage power.
Our isolated bias supplies:
- Offer basic and reinforced isolation solutions to support high working voltages.
- Feature >150 V/ns of common-mode transient immunity to support fast-switching SiC FETs.
- Provide the smallest solution size to meet stringent height and space requirements.
Featured resources
- UCC14240-Q1 – Automotive, 2.0-W, 24-Vin, 25-Vout high-density > 3-kVRMS isolated DC/DC module
- UCC25800-Q1 – Ultra-low EMI transformer driver for isolated bias supplies
- UCC12051-Q1 – Automotive, 500-mW, 5-kVrms isolated DC/DC module with integrated transformer
Design & development resources
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 (...)
Smart isolated gate driver with bias supply reference design
This reference design demonstrates the combination of UCC21732 gate driver with a UCC14xxx series bias supply. This design can be used to drive a variety of power switches, including connecting directly to a Wolfspeed Silicon Carbide (SiC) field-effect transistor (FET) module. This reference design (...)