In a move aimed at providing a low-cost alternative to synchronous rectification products, Vishay Intertechnology Inc. recently launched what it says is the industry's first 200-V, 30-A dual high-voltage Trench MOS Barrier Schottky (TMBS) rectifier diode.
According to Vishay, the V30200C offers several advantages over planar Schottky rectifiers. As operating voltages move to 100V and above, the high switching speed and low forward voltage drop characteristics of planar Schottky rectifiers tend to be lost to a substantial degree. By contrast, the patented TMBS structure reduces minority carrier injection into the drift region and thus minimises stored charge and improves switching speed, according to Vishay.
With a low VF of 0.648 V typical at 15 A and +125 °C and high switching performance, the V30200C reduces power loss and improves the efficiency of switchmode power supplies and OR-ing diodes. To lower costs by reducing the component count and saving board space, the rectifier can be used as an alternative to synchronous rectification products while matching their efficiency and thermal performance, according to Vishay.
The device is optimised for consumer and computer applications with power ratings from 80 W to 200 W, including high-power, high-efficiency telecom base station power supplies, OR-ing diodes for redundant switch-mode power supplies in servers and industrial PCs, secondary rectification circuits for switch-mode power supply adaptors in desktop PCs, servers and notebook PCs, and adaptors for high-power plasma display panels (PDP) TVs, LCD TVs and LCD monitors.
Informative articles
Password forgotten?
)
