Archive: July 2010 page# 1
Embedded System News .Com
Embedded Systems and Microcontroller Electronics Daily News for Developers and Decision Makers
The MAX17127 is a six-string WLED driver that provides a complete backlighting solution for notebooks and netbooks. The high-performance step-up controller integrates a 48V MOSFET capable of driving up to 13 LEDs/string. This integration reduces BOM cost and saves board space by eliminating an external MOSFET. The step-up controller frequency can be programmed from 250kHz to 1MHz, allowing flexibility in selecting external components...
The ZXGD3103N8 is a synchronous MOSFET controller for driving a
MOSFET in place of a Schottky diode in the secondary side of flyback and
resonant converters. The ZXGD3103N8 designed to maximize circuit efficiency and help achieve Energy Star product ratings. The ZXGD3103N8 enables designers to reduce rectifier losses by up to 70% and increase power supply efficiency by up to 3.5%.
The ZXGD3103N8 monitors MOSFET reverse voltage and applies a positive turn-on voltage to the gate if body diode conduction is detected...
International Rectifier announced the availability of a new online design tool that enables electrical and thermal simulation and design optimization for the SupIRBuck™ family of integrated point-of-load voltage regulators. The SupIRBuck online tool selects suitable devices for a given application. Once basic requirements are entered, the tool allows the user to capture schematics, create a reference design along with associated Bill of Materials (BOM), view waveforms, and perform complex thermal and application analysis quickly and easily to dramatically accelerate development time. The SupIRBuck tool is designed and engineered to assist a variety of designers, from power experts to digital specialists with limited exposure to analog design...
Vishay Unveils ThunderFET SiR880DP, 80-V Power MOSFET with On-Resistance Rating at a 4.5-V Gate Drive
The new ThunderFET™ SiR880DP is the first 80-V power MOSFET with an on-resistance rating at a 4.5-V gate drive. Packaged in the thermally enhanced PowerPAK® SO-8, the new 80-V SiR880DP offers ultra-low on-resistances of 8.5 m ohm at 4.5 V, 6.7 m ohm at 7.5 V, and 5.9 m ohm at 10 V. Typical on-resistance times gate charge, a key figure of merit (FOM, expressed in nC-m ohm) for MOSFETs in dc-to-dc converter applications, is 161 at 4.5 V. 80-V Power ThunderFET SiR880DP (Photo from Vishay Website) The ThunderFET™ SiR880DP is optimized for primary side switching in isolated do-to-dc converters for telecom point-of-load applications...
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