Power Integrations, the leader in high-voltage integrated circuits for energy-efficient power conversion, today introduced its LinkSwitch™-XT2 family of offline, low-power converter ICs offering high accuracy, high efficiency, and excellent no-load performance. LinkSwitch-XT2 ICs target isolated and non-isolated flyback applications in which accurate regulation of output voltage and current are important. The new ICs can deliver up […]
Semiconductor
AECQ100-qualified Hall Effect ICs offer 30G BOP to 275G BOP switching sensitivities
Targeting automotive applications, Diodes Incorporated has introduced a new family of high-voltage, unipolar Hall effect switch ICs that are qualified to AECQ100 Grade 0 and offer a range of operating sensitivities. Designed for position and proximity sensing in applications such as seat buckle fastening, door, and trunk open, close and lock function detection, and the […]
Power management IC for SSD market integrates customized controller
Active-Semi, Inc. together with Silicon Motion Technology Corporation and Shannon Systems (en.shannon-sys.com) today announced a total solution available for the SSD market, using the ACT8870 5V power management IC and the highly customized controller from SMI. “The ACT8870 IC is a highly flexible PMIC that integrates four DC/DC buck regulators and three LDO regulators. Reducing system […]
Less famous attributes of Schottky diodes
Schottky diodes are useful in some power-converter topologies, especially for shunting the body diode in a half-bridge’s low-side MOSFET. In this position, the Schottky diode prevents the body diode from turning on, particularly when driving inductive loads common in power converters, because it’s forward voltage drop is smaller than that of the body diode’s PN […]
Single-Chip USB-C buck-boost battery chargers support bidirectional power
Intersil Corporation today introduced two new USB-C™ buck-boost battery chargers that support bidirectional power delivery in ultrabooks, tablets, power banks and other mobile products. The single-chip ISL9238 and ISL9238A battery chargers replace competitive two-chip solutions to reduce customer bill of materials (BOM) costs by up to 40%. Both ICs employ Intersil’s patented R3™ modulation technology to […]
GaN FET boasts 72 mΩ on resistance
Transphorm Inc., a leader in the design and manufacturing of JEDEC-qualified 650V GaN (gallium nitride) semiconductors, today announced its latest portfolio addition: the TPH3212PS. Available in a TO-220 package, the device has an on-resistance of 72 mOhms (mΩ) and targets AC to DC and DC to AC power supplies. When used inside the former, the […]
SiC Schottky barrier diodes feature low forward voltage, high surge resistance
ROHM has recently announced the availability of 3rd generation SiC Schottky Barrier Diodes (SBDs) optimized for power supply PFC circuits in servers and high-performance PCs. The SCS3 series adopts a new structure that improves upon the industry-low VF characteristics of ROHM’s 2nd Generation SiC SBDs (1.35V @ 25C) while providing increased surge resistance. This contributes […]
Chips to accelerate the adoption of wireless charging, with ability to efficiently charge metal-body consumer electronics
STMicroelectronics and WiTricity, the industry pioneer in wireless power transfer over distance, today announced their design collaboration to develop semiconductor solutions for magnetic-resonance-based wireless power transfer. The goal is to “cut the last cord,” bringing convenience to the powering and charging of consumer electronics, Internet of Things (IoT) devices, as well as medical, industrial, and […]
TVS diode combines 200-W surge, 3.3-V reverse standoff, 6.8-V clamping voltage capabilities in a small-footprint for mobile apps
Littelfuse, Inc., the global leader in circuit protection, has introduced a series of TVS Diodes designed specifically to protect sensitive portable and compact electronics from voltage transient events. The SMF3.3 Series TVS Diode combines 200W surge capability, low reverse standoff voltage (3.3V), and low clamping voltage (6.8V) with a small-footprint, low-profile SOD-123FL plastic package for […]
New technique cuts costs of SiC high-voltage switches
Connecting several silicon-carbide MOSFETs in series may be a relatively inexpensive way of fielding high-performance power switches. So say researchers at North Carolina State University’s FREEDM Systems Center. The topology for the new power switches is called the FREEDM Super-Cascode. It combines 12 smaller SiC power MOSFETs in series to reach a power rating of […]
