53514 Datasheet, PDF (1/7 Pages) Micropac Industries – SOLID STATE POWER CONTROLLERS

53514
NON-LATCHING, ISOLATED OUTPUT
SOLID STATE POWER CONTROLLERS
MICROCIRCUITS
Features:
 Switch Status Output
 I²T circuit protection with status output
 SPST, normally open
 20A Operating Current
 Power FET output with Low on-state resistance
 Full military temperature operation:
-55ºC to +125ºC.
 Radiation hardened capable.
 Military environmental screening available
Applications:
 Designed for 24V bus applications
 Aircraft Power Distribution
 Military/High Reliability Systems
 Satellite/Space Systems
DESCRIPTION
The 53514 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. They share the heritage and
features of the 53504 Solid State Controller family.
Transformer coupling between the input, output and Power Bus stages provides effective isolation of 500 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)
Short-circuit protection and 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.
These devices contain radiation hardened components and/or other features that provide a level of radiation
tolerance. Micropac does not guarantee any level of radiation hardness. Specific lot testing is required to
determine the level of radiation hardness. Micropac does not offer this device as compliant to Appendix G (RHA
Requirements) of MIL-PRF-38534.
ABSOLUTE MAXIMUM RATINGS
Isolation voltage¹.........................................................................................................................................................500 V RMS
Output withstanding and transient output voltage² ....................................................................................................... 100 VDC
Load Current ..................................................................................Less Than 8 Times Rated Operating Current / Self Limiting
Bias supply voltage, V_DD ..................................................................................................................................... -0.6 to 5.5 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}
3 _{Device rating. Application derating not included in these values}
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  [phone]  Fax [phone]
www.micropac.com E-MAIL: [e-mail] Rev D
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