53507 Datasheet, PDF (1/9 Pages) Micropac Industries – SELECTABLE OUTPUT SOLID STATE

53507-002
SELECTABLE OUTPUT SOLID STATE
POWER CONTROLLER
Mii
MICROCIRCUITS DIVISION
Features:
 Switch Status Output
 I²T circuit protection
 SPST, normally open
 10A and 15A Outputs, 10A, 15A or 25A Operation
 Power FET output with Low on-state resistance
 Full military temperature operation:
-55ºC to +125ºC.
 Military environmental screening available
 Continuous Coverage from 5.0A to 25A
Applications:
 Designed for 30V bus applications
 Aircraft Power Distribution
 Military/High Reliability Systems
 Satellite/Space Systems
DESCRIPTION:
The 53507 Series Solid-State Power Controllers are designed to replace electromechanical breakers and solid-state relays.
They overcome the arcing and contamination problems of breakers and provide protection from overload and shorted load
conditions.
Transformer coupling between input and output provides effective isolation of 1000VDC. The Power MOSFET switches
used in the output stage provide low “on” resistance and minimal internal power dissipation.
The Control input is CMOS or TTL logic compatible and is operable from a bias supply of 4.5 to 5.5 VDC. Full specification
performance is from 4.75 to 5.25 VDC.(See Figure 1).
Integral short-circuit protection, I²T trip and output status is provided. The output current flow is continuously monitored and
responds to over-load conditions by opening the output with an I²T trip curve. An open-collector Output Status or (optional)
Fault Status is provided. When tripped, the output remains blocked averting further system damage. Status is an open
collector output High with an ON SSPC and Low with an OFF SSPC (Command OFF or Faulted). The optional Fault Status
is an open collector high (Open) for all SSPC conditions except Faulted. Resetting the unit is accomplished by cycling the
input control.
A Trip current adjust is provided to allow customer trimming of the trip current between the design I _trip and one half of I _trip .
Connecting Pins 3 and 8 will reduce the “Steady State Trip Current” by one half without changing the “Instant Trip” let-
through current. An intermediate trip point may be achieved by connecting a resistor per the following between Pins 3 and 8.
    I  I _(trim)
( design )
1  ⁵⁰
100  R_(trim)
, R_(trim) is in kohms and I is in Amperes.
RADIATION TOLERANT:
The 53507 contains radiation hardened components and / or other features that provide a level of radiation tolerance.
Micropac does not offer this device as compliant to Appendix G (RHA Requirements) of MIL-PRF-38534, and does not
guarantee any level of radiation hardness. Specific lot testing is required to determine the level of radiation hardness.
PRECAUTIONS:
SSPC’s must always be operated with adequate transient voltage protection. When the SSPC turns off rapidly due to
overload or fault conditions, external wiring impedance may generate transient voltages when current is interrupted. The
resultant voltages and currents must not exceed the published Maximum ratings of the SSPC.