ATW2812D Datasheet | International Rectifier

Description The ATW28XXD Series of DC/DC converters feature high power density and an extended temperature range for use in military and industrial applications. Designed to MIL-STD-704 input requirements, these devices operate with a nominal 28VDC inputs with ±12V and ±15V dual 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 270KHz. Input to output isolation is achieved through the use of transformers in the forward and feedback circuits. The advanced feedback design provides fast loop response for superior line and load transient characteristics and offers greater reliability and radiation tolerance than devices incorporating optical elements in the feedback circuits. Manufactured in a facility fully qualified to MIL-PRF38534, 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 acmodated. Contact IR Santa Clara for special requirements. Features n 18V to 40VDC Input Range (28VDC Nominal) n ±12V and ±15V Outputs Available n Indefinite Short Circuit and Overload Protection n 22.8W/in3 Power Density n 30W Output Power n Fast Loop Response for Superior Transient Characteristics n Operating Temperature Range from -55°C to +125°C Available n Popular Industry Standard Pin-Out n Resistance Seam Welded Case for Superior Long Term Hermeticity n Efficiencies up to 85% n Shutdown from External Signal n Full Military Screening n 200,000 hour MTBF at 85°C n Standard Microcircuit Drawings Available .irf. 12/14/06 ATW28XXD Series Specifications Absolute Maximum Ratings Input voltage Soldering temperature Operating case temperature Storage case temperature -0.5V to +50VDC 300°C for 10 seconds -55°C to +125°C -65°C to +135°C Table I. Electrical Performance...