Building upon the advantages of STMicroelectronics’ MasterGaN platform, MasterGaN2 is the first in the new family to contain two asymmetric gallium-nitride (GaN) transistors, delivering an integrated GaN solution suited to soft-switching and active-rectification converter topologies. The 650V normally-off GaN transistors have on-resistance (RDS(on)) of 150mΩ and 225mΩ. Each is combined with an optimized gate driver, making GaN […]
stmicroeletronics
High-temperature snubberless triacs reduce heat sink needs
STMicroelectronics’ 800V 8H Triacs operate at full rated current up to the maximum junction temperature of 150°C, allowing heatsinks in drives for AC loads to be up to 50% smaller to combine compact dimensions with high reliability. Suited to industrial, personal care, smart-home, and smart-building applications, the new Triacs leverage ST’s latest Snubberless high-temperature technology […]
Synchronous dc/dc buck converter optimized for noise-sensitive apps
The STMicroelectronics L7983 is a compact, 3V-60V, 300mA synchronous DC/DC buck converter with flexible, dynamic-mode selection to satisfy noise-sensitive applications and maximize efficiency at light load. Special ST innovations engineered into the L7983 allow control of the low-side power MOSFET to provide a low-noise mode (LNM) with constant switching frequency and an alternative low-consumption mode (LCM). In LCM, […]
50-W Qi wireless-charging IC speeds consumer electronics recharging
STMicroelectronics has introduced the world’s fastest Qi wireless charging IC, STWLC88. Delivering as much as 50W of power, the new device enables consumers to charge smartphones, tablets, laptops, and other personal electronic devices without cables as safely and nearly as quickly and efficiently as they could by plugging them in. ST’s state-of-the-art 50W wireless-power IC charges smartphones two […]
High-voltage gate driver with 6-kV galvanic isolation comes in compact package
STMicroelectronics’ STGAP2HS is a compact, high-voltage gate driver for applications that require up to 6kV galvanic isolation between the gate-driving channel and the low-voltage control and interface circuitry. The 1200V device can sink and source up to 4A output current to simplify the design and enhance the reliability of mid- and high-power converters, power supplies, and inverters […]
Plug-and-play boards control 3-phase BDCMs powered from Li-ion batteries
STMicroelectronics has introduced two new plug-and-play boards for controlling 3-phase brushless motors powered by up to 56V Li-ion batteries. Based on ST’s highly integrated STSPIN32 motor-control Systems-in-Package, the STEVAL-PTOOL1V1 and STEVAL-PTOOL2V1 evaluation boards fulfill key requirements of power tools including small dimensions and low standby current. Firmware is supplied for six-step motor commutation using Hall-effect rotor-position sensing, which […]
Offline PWM controller boosts efficiency, economy, stability of ultra-low standby power supplies
STMicroelectronics’ STCH03 offline Pulse-Width Modulation (PWM) controller combines high integration with accurate constant-current output using primary-side regulation enabling economical mobile chargers, power adapters, or auxiliary supplies to meet stringent eco-design limits for average efficiency and standby power. At heavier loads, the STCH03 maximizes efficiency by operating in quasi-resonant mode with zero-voltage switching (ZVS) controlled by detecting transformer […]
Off-line converters incorporate logic-level primary MOSFET for efficient 5-V output
The VIPer11 off-line converter with embedded 800V avalanche-rugged MOSFET from STMicroelectronics enables equipment makers to design tougher auxiliary power supplies and power adapters. Its 26Vdc drain-start voltage allows an ultra-wide line input voltage range and it enhances flexibility in numerous consumer and industrial applications. The logic-level primary MOSFET enables the VIPer11 to operate with a wide supply […]
