Description

The ATO28XXT Series of DC/DC converters feature high power density and an extended temperature range for use in military and industrial applications. Designed to the nominal input requirements of MIL-STD-704D, these devices have nominal 28VDC inputs with +5V and ±12V or +5V and ±15V triple outputs to satisfy a wide range of requirements. The circuit design incorporates a pulse width modulated push-pull topology operating in the feed-forward mode at a nominal switching frequency of 250KHz. Input to output isolation is achieved through the use of transformers in the forward and feedback circuits.

Features

■ 16V to 40VDC Input Range (28VDC Nominal)

■ 5V, ±12V or 5V, ±15V Outputs Available

■ Indefinite Short Circuit and Overload Protection

■ 15W Output Power

■ Fast Loop Response for Superior Transient Characteristics

■ Operating Temperature Range from -55°C to +125°C Available

■ Popular Industry Standard Pin-out

■ Resistance Seam Welded Case for Superior Long Term Hermeticity

■ Efficiencies up to 81%

■ Shutdown from External Signal

■ 200,000 Hour MTBF at 85°C

■ Standard Microcircuit Drawings Available