The ISL6700 is an 80V/1.25A peak, medium frequency, low cost, half-bridge driver IC available in 8-lead SOIC and 12-lead QFN plastic packages. The low-side and high-side gate drivers are independently controlled and matched to 25ns. This gives the user maximum flexibility in dead-time selection and driver protocol. Undervoltage protection on both the low-side and high-side supplies force the outputs low. Non-latching, level-shift translation is used to control the upper drive circuit. Unlike some competitors, the high-side output returns to its correct state after a momentary undervoltage of the high-side supply.

The drivers are available in the industry-standard 8-pin SO footprint and pin configuration with a thermally enhanced 8-pin SO package. All devices operate over the -40°C to +125°C automotive temperature range. Applications Telecom Power Supplies Synchronous Buck DC-to-DC Converters Half-Bridge, Full-Bridge, and Two-Switch Forward Converters.

• Drives 2 N-Channel MOSFETs in Half-Bridge Configuration • Space Saving SO8 and Low RC-S QFN Packages • Phase Supply Max Voltage to 80VDC • Bootstrap Supply Max Voltage to 96VDC • Drives 1000pF Load with Rise and Fall Times Typ. 15ns • TTL/CMOS Compatible Input Thresholds • Independent Inputs for Non-Half-Bridge Topologies • No Start-Up Problems • Low Power Consumption • Wide Supply Range • Supply Undervoltage Protection • QFN Package • Compliant to JEDEC PUB95 MO-220 QFN • Quad Flat No Leads - Package Outline • Pb-Free Available (RoHS Compliant).

This comprehensive Voice & Style pack represents a complete upgrade to your instrument, giving you the tools to recreate and enjoy the most authentic music from Vietnam. Psr

Full

Allegro MicroSystems, Inc. Announces a new full-bridge MOSFET controller for use with external N-channel power MOSFETs. The A4957 is designed for applications with high-power brush DC motors. It has a wide supply voltage range of 7 V to 50 V. This new device is targeted for commercial and industrial applications such as portable power tools, lawn and garden equipment, industrial blowers, lifts and conveyors, and forklifts. Instruction manual.

Offered in the 24 lead ES package, Allegro's A4957 is intended to meet the performance and price point driving motors in these applications. A unique charge pump regulator provides full ( >10 V ) gate drive for supply voltages down to 7 V or as low as 4.5 V with a reduced gate drive. A bootstrap capacitor is used to provide the above battery supply voltage required for N-channel MOSFETs. A unique bootstrap charge management system ensures that the bootstrap capacitor is always sufficiently charged to supply the high-side gate drive circuit. Each of the power MOSFETs is controlled independently but all are protected from shoot-through by dead time that can be configured by the user through an external resistor. Integrated diagnostics provide indication of undervoltage and over-temperature faults. The A4957SESTR-T is supplied in a 24-lead, 4 mm × 4 mm × 0.75 mm QFN package with an exposed pad for enhanced thermal dissipation.

It is lead (Pb) free, with 100% matte tin lead-frame plating (suffix T). It is priced at $1.42 in quantities of 1,000. Part Number: A4957.