53503 Datasheet, PDF (1/8 Pages) Micropac Industries – LATCHING, ISOLATED OUTPUT

53503
LATCHING, ISOLATED OUTPUT
SOLID STATE POWER CONTROLLERS
Mii
Power Management & Controls
Division
Features:
 Switch Status Indicator
 I²T circuit protection with status output
 SPST, normally open
 5A, 10A and 15A Operating Current
 Power FET output with Low on-state resistance
 Full military temperature operation
-55ºC to +125ºC
 Radiation tolerant
 Military environmental screening available
Applications:
 Designed for 28V bus applications
 Aircraft Power Distribution
 Military/High Reliability Systems
 Satellite/Space Systems
DESCRIPTION
The 53503 Solid-State Power Controllers are lightweight, resistant to damage from shock and vibration, and immune to
contact-related problems (contamination, arcing) associated with mechanical equivalents.
Transformer coupling between the input, output and Power Bus stages provides effective isolation of 1000 V RMS. The
Power FET output eliminates bipolar offset and minimizes output voltage drop.
The Control input is CMOS or TTL logic compatible and may operate from a bias supply of 4.5 to 5.5VDC. (See Figure 1)
Integral short-circuit protection, I²T trip and output status is provided. The output current is continuously monitored and
responds to an over-current condition with an I²T trip curve by opening the output. Over-current conditions include Over-
Load and Shorted Output during Turn-On. An open-collector Fault Status or Output Status (optional) is available to indicate
the fault or switch state. The output remains blocked until the short is removed and the unit reset. This feature prevents
damage to the controller while averting further system failures that may be caused by the short circuit. Standard Output
Fault is an Active Low output remaining high (open) under all operating conditions except during an Output Fault. The
optional Output Status is High when the output is On and Low when the output is Off. Resetting the unit is accomplished by
recycling the input control.
This device is available unscreened or screened to H or K levels in accordance with Table C-IX of MIL-PRF-38534.
ABSOLUTE MAXIMUM RATINGS
Isolation voltage¹.......................................................................................................................................................1000 V RMS
Load voltage² ................................................................................................................................................................. 100 VDC
Load Current .........................................................................................................Less Than 8 Times Rated Operating Current
Bias supply voltage, V_DD ....................................................................................................................................... -.6 to 5.5 VDC
Power Bias supply voltage ..............................................................................................................................................28 VDC
Control Voltage ................................................................................................................. 1 Volt above V_DD / Volt below Return
Operating temperature ............................................................................................................................ -55ºC to +125ºC Case
Storage temperature ..........................................................................................................................................-55ºC to +125ºC
Notes:
1 _{60 Hz sine wave}
2 _{Reversing polarity on the output may cause permanent damage}
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. ●Power Management & Controls Division  905 E. Walnut St., Garland, TX 75040  [phone]  Fax [phone]
www.micropac.com E-MAIL: [e-mail] 10/08/2013 Rev J
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