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Rad-tolerant digital isolators provide 2.5kVrms of isolation and 600Vrms continuous voltage

January 29, 2019 By Aimee Kalnoskas Leave a Comment

Renesas Electronics Corporation introduced two plastic packaged, radiation-tolerant digital isolators that provide the highest isolation protection (2,500VRMS) from high voltage spikes in power supply stages and serial communications interfaces used in low Earth orbit (LEO) Small Satellites (SmallSats). Private “New Space” companies plan to launch thousands of SmallSats forming large constellations that operate in multiple […]

Filed Under: Power Electronic Tips Tagged With: renesaselectronicscorp

First USB-C combo buck-boost battery charger for mobile computing systems

December 5, 2018 By Aimee Kalnoskas Leave a Comment

Renesas Electronics Corporation introduced the industry’s first USB-C buck-boost battery charger to support both Narrow Voltage Direct Charging (NVDC) and Hybrid Power Buck-Boost (HPBB) charging for notebooks, ultrabooks, tablets, and power banks using the reversible USB Type-C connector cable. Through firmware control, the ISL9241 can switch between NVDC and HPBB modes, providing a low-cost and […]

Filed Under: Power Electronic Tips Tagged With: renesaselectronicscorp

Automotive-grade 100-V, 4-A half-bridge N-channel MOSFET drivers target hybrid powertrains

November 7, 2018 By Aimee Kalnoskas Leave a Comment

Renesas Electronics Corporation announced a new family of automotive-grade 100V, 4A half-bridge N-channel MOSFET drivers. The ISL784x4 family features three devices: the ISL78424 and ISL78444 with single tri-level PWM input for controlling both gate drivers, and the ISL78434, which has dual independent inputs that separately control the high-side and low-side drivers. The ISL784x4 half-bridge N-MOSFET […]

Filed Under: Power Electronic Tips Tagged With: renesaselectronicscorp

Implementing full digital power control for LDOs

October 15, 2018 By Aimee Kalnoskas Leave a Comment

Today’s power supplies require flexible power solutions and more digital control than a decade ago, especially in the server cloud computing market. The days of de-soldering resistors and capacitors to tweak a voltage control loop are long gone. Historically, digital power control started with a single-phase, point-of-load (POL) regulator with PMBus interface. Today, it has […]

Filed Under: Featured, Power Electronic Tips Tagged With: renesaselectronicscorp

Digital power modules target data center servers, networking equipment

October 11, 2018 By Aimee Kalnoskas Leave a Comment

digital power modules

Renesas Electronics Corporation announced a new family of encapsulated digital DC/DC PMBus power modules. The five RAA210xxx simple digital power modules offer advanced digital telemetry and performance, and are as easy to use as Renesas’ analog power modules. They are complete step-down regulated power supplies that deliver 25A, 33A, dual 25A, 50A, and 70A of […]

Filed Under: Power Electronic Tips Tagged With: renesaselectronicscorp

Bi-directional synchronous buck-boost controllers

October 8, 2018 By Aimee Kalnoskas Leave a Comment

ISL81601 and ISL81401

Renesas Electronics announces an innovative new family of bidirectional four-switch synchronous buck-boost controllers. The ISL81601 and ISL81401 are the industry’s only true bidirectional controllers that sense peak current at both ends and provide cycle-by-cycle current limit in both directions while in buck or boost mode. The controllers generate point-of-load (POL) and voltage rail conversions with […]

Filed Under: Applications, Industrial, Power Electronic Tips Tagged With: renesaselectronicscorp

Optocouplers, Part 2: Parameters and applications

August 27, 2018 By Bill Schweber Leave a Comment

Part 1 of this FAQ explored the basics of the optocoupler. This part looks at key parameters and some application examples. Q: What are the primary factors used when assessing an optocoupler? A: While there are many important factors, there are several which are noteworthy: isolation, current-transfer ratio (CTR), linearity (for analog use), and speed. […]

Filed Under: FAQ, Featured, Power Electronic Tips Tagged With: analogdevicesinc, basics, fairchildsemiconductor, FAQ, onsemiconductor, renesaselectronicscorp

Optocouplers, Part 1: Principles and usefulness

August 20, 2018 By Bill Schweber 1 Comment

The optocoupler — also called an optoisolator — is among the most useful, versatile, problem-solving components available to the design engineer. This small non-monolithic device does one thing and does it well, with minimal complications in most cases and no software. This FAQ will look at its operation principles, key parameters, and applications of this […]

Filed Under: FAQ, Featured, Power Electronic Tips Tagged With: ankri, californiaeasternlaboratories, cel, fairchildsemiconductor, FAQ, kynixsemiconductor, onsemiconductor, renesaselectronicscorp, vishay

The multiport USB-C architecture takes charge

July 13, 2018 By Aimee Kalnoskas Leave a Comment

multiport USB-C architecture

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 […]

Filed Under: Featured, Power Electronic Tips Tagged With: intersilcorporation, renesaselectronicscorp

100-V and 200-V GaN FET power supplies are rad-hard

February 8, 2018 By Aimee Kalnoskas Leave a Comment

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, […]

Filed Under: Power Electronic Tips Tagged With: efficientpowerconversion, renesaselectronicscorp

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