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Half-bridge Driver IC is Self-oscillating

Fri, 10/02/2009 - 9:09am

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the AUIR2085S driver IC from IR Intended for low-, mid-, and high-voltage automotive drive applications, the AUIR2085S driver IC from IR has a soft-start capacitor to increase the duty cycle from zero to 50 percent for 5 msec to limit in-rush current during start-up. The 100-V device maintains equal pulse widths for the high- and low-side MOSFETs (matched to within ±25 nsec) throughout the start-up sequence. Other features include ±1 A gate drive current optimized for low charge MOSFETs, and an adjustable deadtime from 50 nsec to 200 nsec to protect against shoot-through current. From $1.71 each per 100,000.

International Rectifier
310-252-7148, www.irf.com

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