Vishay Siliconix has claimed a new milestone in optimising MOSFETs for core voltage DC-to-DC power conversion with the release of two advanced LITTLE FOOT devices.
Latest in the Vishay Siliconix portfolio of solutions for DC-to-DC converters, the new devices are a synchronous low-side power MOSFET (Si4362DY) and a control high-side power MOSFET (Si4892DY) that deliver leading performance when used together in single or multiphase power supply circuits for notebook computers and game stations.
With an exceptionally low on-resistance rating of 6,25 mOhm at a 4,5 V gate drive the new Si4362DY is optimised for low-side operation, reducing conduction losses and so boosting efficiency. Optimised for high-side operation, Siliconix' Si4892DY features a very low typical gate charge of 8,7 nC, minimising switching losses, and on-resistance of 20 mOhm at a 4,5 V gate drive.
The new low-side Si4362DY also features a gate-drain-to-gate-source charge ratio of 0,6 and a very low gate resistance of 1,3 Ohm, both characteristics that help to prevent 'shoot-through' conditions where both the high- and low-side MOSFETs are 'on', creating a short from input voltage to ground.
Improving on its predecessor, the Si4894DY, the new Si4892DY features a lower gate resistance of 1 Ohm, a 30% better on-resistance times gate charge product of 139,2, and faster turn-on times. The device's low switching losses and higher speeds combine to provide higher efficiency control.
Working together, the two 30 V MOSFETs can provide increased efficiency, longer run times, and cooler operation. The devices' low gate-drain-to-gate-source charge ratio allows designers to use less-expensive MOSFET drivers in end products.
Bringing Bluetooth Channel Sounding to automotive and beyond with KW47 Altron Arrow
Telecoms, Datacoms, Wireless, IoT
NXP’s new Channel Sounding-certified KW47 and MCX W72 wireless MCUs are set to help automakers with distance measurement, bringing an additional ranging solution for car access and autonomous systems, and will be utilised across a broader spectrum of applications.
Read more...Wi-Fi 6 and Bluetooth LE coprocessor module Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The ST67W611M1 from STMicroelectronics boasts an all-in-one design which, together with its capabilities, contribute to making it an attractive choice for IoT edge devices requiring a single-chip solution.
Read more...Wi-Fi 6 plus Bluetooth LE SoC Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Silicon Labs’ SiWx917M SoC is the company’s lowest power Wi-Fi 6 SoC, ideal for ultra-low power IoT wireless devices using Wi-Fi, Bluetooth, Matter, and IP networking for secure cloud connectivity.
Read more...3-terminal filters for automotive applications RS South Africa
Power Electronics / Power Management
TDK has expanded its YFF series of 3-terminal filters for automotive applications to include higher voltages up to 35 V and higher capacitances up to 4,7 µF.
Read more...High-reliability isolation amplifiers EBV Electrolink
Analogue, Mixed Signal, LSI
The VIA series of isolation amplifiers from Vishay are designed to deliver exceptional thermal stability and precise measurement capabilities.
Read more...Simple battery charger ICs for any chemistry Altron Arrow
Editor's Choice Power Electronics / Power Management
The LTC4162 is a highly integrated, high voltage multi-chemistry synchronous monolithic step-down battery charger and PowerPath manager with onboard telemetry functions and optional maximum power point tracking.
Read more...Why your PoE budget could make or break your next installation
Power Electronics / Power Management
In South Africa’s often unpredictable networking environments, understanding and planning your PoE budget is essential for system reliability, customer satisfaction, and long-term scalability.
Read more...Five-minute EV charging a reality
Power Electronics / Power Management
Successfully demonstrated in Beijing recently at the Shanghai auto show, BYD claimed to add 400 km of range in just five minutes of charging.
Read more...Power and precision in a compact package Conical Technologies
Power Electronics / Power Management
The Mibbo MPS Series metal-encased power supplies deliver solid, efficient power in a durable package that’s built to last.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.