ISL6745AUZ

The ISL6745AUZ is a low-cost, double-ended, voltage-mode PWM controller designed for half-bridge and full-bridge power supplies and line-regulated bus converters. It provides precise control of switching frequency, adjustable soft-start, and overcurrent shutdown. In addition, the ISL6745AUZ allows for accurate adjustment of MOSFET non-overlap time ("dead time") with dead times as low as 35ns, allowing power engineers to optimize the efficiency of open-loop bus converters. The ISL6745AUZ also includes a control voltage input for closed-loop PWM and line voltage feed-forward functions. The ISL6745AUZ is identical to the ISL6745, but is optimized for higher noise environments. Low start-up and operating currents allow for easy biasing in both AC/DC and DC/DC applications. This advanced BiCMOS design also features adjustable switching frequency up to 1MHz, 1A FET drivers, and very low propagation delays for a fast response to overcurrent faults. The ISL6745AUZ is available in a space-saving 10 Ld MSOP package and is assured to meet rated specifications across a wide -40°C to +105°C temperature range.

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