53508 Series

SOLID STATE POWER CONTROLLERS

PRELIMINARY

Mii

Features:

•

270V, 10A Operation

•

Power MOSFET with Low On-State Resistance

•

Controlled Soft Turn-On

•

I²t Overload Protection

•

Short Circuit protection

•

External Trip Profile Programming (30% to 100%

of Rating)

•

Fault and Output State Monitor

•

Isolation to 1000V

•

Military environmental screening available

Applications:

•

Designed for 270V bus application

•

Aircraft Power Distribution

•

Military/High Reliability Systems

•

Satellite/Space Systems

DESCRIPTION

The 53508 Series Solid-State Power Controllers are lightweight and resistant to damage from shock and vibration. They are

designed to replace electromechanical breakers and solid-state relays. They overcome the problems associated with arcing

and contamination of breakers as well as providing internal protection for overload and short circuit conditions. They provide

Fault and Output State monitoring as well as a controlled Soft Turn-On. The Trip Profile is externally Programmable from

30% to 100% of Rating

Optical coupling between input and output stages provide effective isolation of 1000VDC. The Power MOSFET switches

used in the output stage provide low “on” resistance, low offset and minimal internal power dissipation.

Precautions:

Precautions must be taken to limit the transient voltages generated by the inductance in the system wiring and load when a

short circuit causes the SSPC to turn off. When testing individual SSPC’s, care should be taken to simulate actual system

conditions.

ABSOLUTE MAXIMUM RATINGS

Isolation voltage .......................................................................................................................................................... 1000 VDC

Continuous operating output voltage .............................................................................................................................400 VDC

Transient output voltage…………………………………………………………………....................................................550 VDC

Bias supply voltage ............................................................................................................................................... -.6 to 5.5 VDC

Control Voltage ..................................................................................................................................................................32VDC

Operating temperature ............................................................................................................................ -55ºC to +125ºC Case

Storage temperature ..........................................................................................................................................-60ºC to +150ºC

Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.

Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.

MICROPAC INDUSTRIES, INC. MICROCIRCUITS PRODUCTS DIVISION

• 905 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 494-2281

www.micropac.com

11/30/06 Rev A

Pg. 1 of 5

MICROPAC

MICROCIRCUITS PRODUCTS

DIVISION