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MOSFET Pre-Driver IC Provides Fault Management

Fri, 05/01/2009 - 6:27am

Allegro’s A4940 MOSFET pre-driver ICDesigned for applications with high-power inductive loads, Allegro’s A4940 full-bridge MOSFET pre-driver IC incorporates fault diagnostics and reporting functionality. With an operating voltage from 5.5 V to 50.0 V, the 24-pin TSSOP-packaged device has a bootstrap charge management system that ensures the bootstrap capacitor is always sufficiently charged to supply the high-side gate drive circuit. Each of the power MOSFETs are controlled independently but are protected from shoot-through by resistor programmable dead time. From $1.61 in quantities of 1,000.


Allegro MicroSystems
www.allegromicro.com 

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