Xunwei Yu and Sungkeun Lim, Renesas Electronics Corporation The USB-C interface is revolutionizing the way we charge our electronics devices. Its USB Type-C connector cable slides right into your smartphone or ultrabook no matter what orientation you use. Physically, the Type-C connector is both bidirectional (either end of the cable can be inserted into either […]
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Multiphase PMICs provide up to 20A of output current, 94 percent peak efficiency
Renesas Electronics Corporation announced three programmable power management ICs (PMICs): the ISL91302B, ISL91301A, and ISL91301B PMICs. The PMICs also deliver power to artificial intelligence (AI) processors, FPGAs, and industrial microprocessors (MPUs), and they are ideal for powering the supply rails in solid-state drives (SSDs), optical transceivers, and a wide range of consumer, industrial and networking […]
100-V and 200-V GaN FET power supplies are rad-hard
The space industry’s first radiation-hardened, low side Gallium Nitride (GaN) field effect transistor (FET) driver and GaN FETs from Renesas Electronics Corporation enables primary and secondary DC/DC converter power supplies in launch vehicles and satellites, as well as downhole drilling and high reliability industrial applications. These devices power ferrite switch drivers, motor control driver circuits, […]
Fully encapsulated dual 30-A and single 33-A digital power modules
Two new fully encapsulated digital dc/dc PMBus power modules deliver the highest power density and efficiency in their class. The dual ISL8274M operates from a 5-V or 12-V power rail, provides two 30-A outputs and up to 95.5% peak efficiency in a compact 18×23-mm2 footprint. The new ZL9024M operates from a 3.3-V rail and outputs […]
How to hot plug sequence your BMS cell connections
By Robert Grist, Intersil, a Renesas Company Lithium-ion (Li-ion) batteries are used in a wide variety of portable system applications, including vacuum cleaners, lawn equipment, handheld power tools, e-bikes, and energy storage systems. Li-ion batteries are smaller, weigh less, and deliver longer battery life than other battery chemistries, but require monitoring and protection for safe […]
Buck-boost regulator targets mobile platforms using reversible USB Type-C connectors
The ISL95338 buck-boost voltage regulator for tablets, ultrabooks, power banks, and other mobile devices using the reversible USB Type-C connector. Intersil’s new bidirectional voltage regulator accepts input power from a wide range of DC power sources — AC/DC power adapters, USB power delivery (PD3.0) ports, travel adapters, power banks — and converts it to a […]
42-V single-channel DC/DC step-down power module delivers up to 15 A continuously
Intersil, a subsidiary of Renesas Electronics Corporation, announced the first 42V single-channel DC/DC step-down power module that delivers up to 15A of continuous current. The ISL8215M operates from a single wide input voltage range that includes industry standard 12V, 18V, and 24V intermediate bus power rails. The module offers adjustable output voltages from 0.6V to […]
Passive cooling options and considerations (part 2)
Part 1 looked at the basics of passive cooling. Part 2 explores the specifics of passive cooling in more detail. Q: What is a most common physical arrangement used for passive cooling? Most designs use a combination of conduction and convection cooling, and perhaps some radiation. Conduction is used to draw the heat away from […]
Passive cooling options and considerations (Part 1)
Keeping components and systems cool enough and within their safe temperature zone is a concern for many, though not all, designers and projects. Excessive heat as measured by temperature can cause erratic behavior, inaccuracy and drift due to temperature coefficient-induced shifts, shortened component lifetime, and even outright failure. Q: What are the cooling options? The […]
