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ATR2800T Datasheet(PDF) 1 Page - International Rectifier |
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ATR2800T Datasheet(HTML) 1 Page - International Rectifier |
1 / 6 page 08/06/07 www.irf.com 1 HYBRID-HIGH RELIABILITY DC/DC CONVERTER ATR28XXT SERIES Description n 30W Output Power n Flexible Output Loading n -55°C to +125°C Operation n Pin Compatible with ATO n 0.410” Maximum Height n 16V to 40VDC Input Range n 500V Input to Output Isolation n High Audio Rejection n MIL-STD-704 Compatible n Load Fault Protection - Short Circuit and Overload n TTL level Compatible Synchronization n Standard Microcircuit Drawings Available Features ATR 28V Input, Triple Output The ATR28XXT Series of DC/DC converters provide 30W of output power over the full military temperature range with no derating. These devices are pin compatible with the ATO series converters but offer twice the maximum output power in a lower profile package. A custom CMOS ASIC pulse width modulator operating at a nominal switching frequency of 550KHz combined with a unique magnetic feedback reduces circuit complexity for enhanced reliability. These converters provide 500V input to output isolation and operate in highly efficient single forward mode. The advanced feedback design and high operating frequency provide an extremely wide bandwidth control loop with high gain and phase margin. This results in fast dynamic line and load response as well as superior audio rejection. The control loop is compensated to provide optimum performance over the full military temperature range and over the 16V to 40V input voltage range. These converters are protected against both continuous output short circuits and output overload. Either load fault condition will result in operating in a low power dissipation foldback mode. The converters will shut down for approximately 15ms, then attempt to restart. This cycle will continue indefinitely unless the load fault is corrected. Recovery to normal operation is automatic upon removal of the load fault. Manufactured in a facility full qualified to MIL-PRF-38534, these converters are fabricated utilizing DSCC qualified processes. For available screening options, refer to device screening table in the data sheet. Variations in electrical, mechanical and screening can be limited accomodated. Contact IR Santa Clara with specific requirements. PD-94551D |
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