Alpha and Omega Semiconductor Limited announced the release of, AONS30300, a 30V MOSFET with low on-resistance. The AONS30300 features a high Safe Operating Area (SOA) capability making it ideally suited for demanding applications such as hot swap and eFuse. A high SOA is essential in server hot-swap applications where the MOSFET needs to be robust to […]
MOSFETS
High SOA MOSFET optimized for 12-V hot swap applications
Alpha and Omega Semiconductor Limited announced the release of, AONS30300, a 30V MOSFET with low on-resistance. The AONS30300 features a high Safe Operating Area (SOA) capability making it ideally suited for demanding applications such as hot swap and eFuse. A high SOA is essential in server hot-swap applications where the MOSFET needs to be robust to […]
600 V and 1200 V rectifiers reduce conduction and switching losses
Vishay Intertechnology, Inc. introduced 15 new FRED Pt Gen 5 600 V and 1200 V Hyperfast and Ultrafast rectifiers in the compact SOT-227 package. Offering the best conduction and switching loss trade-off for devices in their class, the Vishay Semiconductors rectifiers are designed to increase the efficiency of high-frequency converters and of soft-switched or resonant […]
Dispelling Myths: Don’t believe it when they say you need a bipolar gate drive for eGaN FETs
Use of a negative gate drive can lead to a larger voltage drop during deadtime and severe losses. Andrea Gorgerino, EPC GaN devices have gone from initial R&D to mainstream designs over the last 15 years. Unfortunately, there are many misunderstandings left-over from those early-stage developments or dead-end technology branches. One of the most pernicious […]
Selecting a gate driver for ASIL-certified systems
Several safety features now found in gate driver integrated circuits make it easier for automotive system designs to get ASIL certification. David Divins • Infineon Technologies The Automotive Safety Integrity Level (ASIL) is a risk classification system defined by the ISO 26262 standard for the functional safety of road vehicles. There are four ASIL safety […]
Buck DC/DC converter IC features built-in MOSFET for automotive apps
ROHM Semiconductor today announced the BD9S402MUF-C, a new buck DC/DC converter IC with built-in MOSFET (switching regulator) for automotive applications such as infotainment and ADAS (Advanced Driver Assistance Systems) incorporating onboard sensors and cameras that are becoming more advanced. In recent years, safety requirements in the automotive sector have increased as technological innovations in accident prevention and autonomous driving continue […]
Where depletion-mode power MOSFETs excel
Depletion-mode MOSFETs have qualities that let them work well in several kinds of power-handling circuits. Aalok Bhatt, José Padilla, Raymon Zhou • Littelfuse, Inc. Most MOSFETs are enhancement-mode (EM) devices: When their gate-source voltage is zero, they don’t conduct. When the need is for a switch that is normally on when there is no power […]
High-side gate driver enables wire protection for advanced automotive power distribution
Modern cars feature numerous advanced driver assistance systems (ADAS). Safety-critical ADAS applications must be designed for high availability, and automated driving functions are even more challenging to implement as they introduce fail operational requirements. The impact on the primary power distribution is the introduction of safety elements to guarantee fast failure isolation in less than […]
Integrated ac-dc power stages handle up to 950 V
Optimized performance, efficiency, and reliability in high-voltage power supplies need to be combined with reduced bill-of-material (BOM) count and cost, as well as lower design efforts. With its 5 th generation fixed-frequency (FF) CoolSET portfolio, Infineon Technologies AG offers the right components to meet these needs and effectively manage the critical design trade-offs. The new 800 V and 950 V […]
Alternator regulator enhanced features ensure stability of 12-V vehicle electrical systems
STMicroelectronics has introduced the L9918 automotive alternator regulator, with enhanced features to ensure the stability of 12V vehicle electrical systems. The regulator contains a MOSFET to deliver an alternator excitation current and a freewheeling diode to handle the rotor current when excitation is turned off. Closed-loop operation with load response control (LRC) and return […]