Texas Instruments (TI) demonstrated at the Applied Power Electronics Conference (APEC) last week, focused on how engineers can overcome some of their most pressing power-management design challenges. The company showcased the newest additions to its power-management portfolio and demonstrate system-level solutions for increasing power density, reducing electromagnetic interference (EMI), noise, and quiescent current (IQ), and extending reliability.
“For decades, TI has been at the forefront of developing new processes, packaging, and circuit-design technologies that help power designers achieve higher power density, extend battery life, reduce EMI, preserve power and signal integrity, and maintain reliability in their systems,” said Mark Gary, senior VP, Analog Power Products. “Our commitment to delivering next-generation power-management solutions is helping engineers achieve new levels of performance, improve energy efficiency, and increase reliability in applications ranging from automotive powertrain and body electronics to EV charging, solar power, and medical equipment.”
TI is debuted three new products at APEC to help engineers mitigate EMI and noise in their systems:
- The 36-V, 3-A LMQ66430 and LMQ66430-Q1 buck converters integrate two input bypass capacitors and one boot capacitor, enabling engineers to easily meet Comité International Spécial des Perturbations Radioélectriques (CISPR) 25 Class 5 EMI standards while offering a best-in-class total solution size, 1.5-µA quiescent current (IQ) and reduced bill-of-materials costs. (To learn more about the benefits of these devices, read this technical article.)
- The TPS7A94 low-dropout (LDO) linear regulator combines the industry’s lowest noise of 0.46 µVRMS – at least 42% better than competing solutions – with a high power-supply rejection ratio, helping designers improve system accuracy and precision in highly sensitive applications such as medical equipment, wireless infrastructure and radar. (To learn more, read this article.)
Pushing power further
At APEC, TI also demonstrated how its products can help engineers overcome critical power-management design challenges such as:
- Increasing power density through an 800-V, 11-kW three-level, three-phase, gallium-nitride (GaN)-based, active neutral-point clamped (ANPC) inverter power stage. This demo was based on a 6.6-kW ANPC inverter reference design and showcased the 600-V LMG3422R030 GaN field-effect transistor (FET) — which enables a high-switching frequency to reduce magnetics size, increase power density, and achieve a 98.5% peak efficiency in EV-charging and solar-power applications.
- Lowering EMI in automotive and industrial applications while improving filter size. The LMQ66430-Q1 low-EMI buck converter reduces EMI in real time by leveraging a proprietary dual, random spread-spectrum technique while showing how integrated capacitors greatly simplify designs.
- Enabling safer systems with high-voltage isolation technologies that provide reliable operation. Based on an Automotive Safety Integrity Level (ASIL) D safety concept-assessed high-speed traction inverter reference design, TI’s UCC5870-Q1 isolated gate driver and UCC14240-Q1 isolated DC/DC bias supply module to enable high system efficiency with 30 A of peak current while maintaining system reliability through advanced high-voltage isolation, protection and diagnostics.
- Extending battery life in EV and hybrid EV powertrain systems. This 7-kW onboard-charger demo featured TI’s REF35 ultra-low-IQ voltage reference for precision amplifiers, LMG3522R030-Q1 automotive GaN FET and TMS320F280039C C2000 real-time microcontroller — minimizing power consumption and achieving a >96% system efficiency.
- Enhancing the power and signal integrity of low-voltage devices such as voltage-controlled oscillators, analog-to-digital converters, digital-to-analog converters, and high-end processors: This demonstrated he impact of different stimuli on a power supply that uses the TPS7A94, the industry’s lowest-noise LDO, which can achieve 0.46 µVRMS of noise from 10 Hz to 100 kHz.
Filed Under: Electric Vehicles, News, Power Management