Texas Instruments (TI) has revealed the industry’s smallest and most accurate 1.5-W isolated DC/DC bias-power supply module for electric vehicles (EVs).
The UCC14240-Q1 uses a proprietary integrated transformer technology to enable designers to cut their power solution size in half for use in high-voltage environments such as electric vehicles (EVs), hybrid EVs, motor-drive systems and grid-tied inverters.
Fully integrated power solutions such as the UCC14240-Q1 help engineers take advantage of distributed architecture. Learn more by reading the technical article, “Driving next-generation EV systems with a distributed architecture in a bias-supply.”
The UCC14240-Q1 offers size and efficiency advantages that enable greater power density and system efficiency, which can allow vehicles to drive farther between charges.
The 3.55-mm height and small footprint of the UCC14240-Q1 enable designers to reduce the power solution volume by as much as 50%, packing more power in half the size. The height reduction also gives engineers the full flexibility to place the module on either side of the printed circuit board.
This dual-output power module offers 60% efficiency – twice that of traditional bias supplies – doubling the power density and helping increase vehicle driving range. By delivering more than 1.5 W at ambient temperatures of 105°C, the UCC14240-Q1 enables engineers to drive isolated gate bipolar transistors (IGBTs), silicon carbide (SiC) and gallium nitride (GaN) switches at high frequencies.
By leveraging TI’s integrated transformer power module technology with a 3.5-pF primary-to-secondary capacitance, the UCC14240-Q1 can mitigate EMI caused by high-speed switching and comfortably achieve common-mode transient immunity (CMTI) performance of more than 150 V/ns.
Featuring soft switching, spread-spectrum modulation, shielding and low parasitics, the UCC14240-Q1 enables designs to more easily meet the electromagnetic compatibility standards of Comité International Spécial des Perturbations Radioélectriques (CISPR) 25 and CISPR 32, speeding time to market.
The UCC14240-Q1’s integrated closed-loop control enables ±1.0% accuracy from -40°C to 150°C. The device’s tight tolerance enables the use of smaller power switches while also improving overcurrent protection.
Fault monitoring, overcurrent protection, overpower protection and overtemperature protection are all fully integrated. The UCC14240-Q1 offers third-party-certified 3-kVrms isolation and delivers the industry’s best vibration immunity due to its ultra-low weight and 3.55-mm height.