100V power MOSFET rolls for primary switching apps

Toshiba America Electronic Components Inc. (TAEC) has announced a new 100V Power MOSFET, designated TPCA8022-H, for primary switching applications in insulated on-board DC/DC converters and switching regulators. Developed by Toshiba Corp., the device contributes to higher power efficiency and system miniaturization, and is targeted for use in communication infrastructure equipment that requires insulated intermediate bus converters (IBCs).

Demand for power supply devices for communication infrastructure equipment has grown due to the spread of high-speed Internet, wireless Internet communication and VOIP. Microprocessors and memory used in such infrastructure equipment must be distributed and multistaged. As a result, designers have adopted insulated IBC and non-insulated point of load to achieve higher response, higher efficiency and miniaturization of the equipment while contributing to cost reduction.

"This newest member of our SOP Advance family of MOSFETs has been developed to address the needs of communication equipment designers by providing fast switching speed, reduced gate charge, low ON-resistance, a small footprint and excellent power efficiency," said Jay Heinecke, business development director for TAEC's Discrete Business Unit.

The new power MOSFET is an enhanced, pin-compatible upgrade for Toshiba's earlier TPCA8006-H. It combines Toshiba Ultra-High Speed UMOS-III process technology with SOP Advance low-profile packaging to achieve a high current rating and improve power dissipation, explained the company. Toshiba said its SOP Advance packaging is approximately 37 percent thinner than standard SOP-8 and saves space on printed circuit boards.

Other device features include drain-source withstand voltage suitable for primary switching devices for 48V input bus converters; efficient trade-off between ON-resistance and Qg by its U-MOSIII design; low drain-source ON-resistance; low gate-switch charge; guaranteed avalanched resistivity; and, built-in ZENER DIODE protection between gate and source.

Samples of the TPCA8022-H MOSFET are scheduled to be available this month, priced at 75 cents each.