CAES UT36PFD103 Smart Power Switch Controller

The UT36PFD103 Smart Power Switch Controller is the space industry's first highly integrated power switch controller providing extensive fault detection, isolation, and recovery capabilities combined with built-in digitized telemetry of input voltage, output voltage, and load current.

The UT36PFD103 is an intelligent PowerMOSFET controller with load-side inrush current limiting and eFUSE protection of current faults. Combining adjustable current and voltage monitoring capability with flexible fault detection, isolation and recovery, the SPSC integrates many of the critical functions required for power switching applications and often implemented with a number of discrete components.

CAES Smart Power Switch Controller (SPSC) Evaluation Board

The UT36PFD103, Smart Power Switch Controller Evaluation Board, SPSC-EVB, provides users with a convenient and flexible platform from which to evaluate the manifold features and functions available with the UT36PFD103.

The SPSC-EVB may be operated in single-supply stand-alone form (i.e. without host microcontroller) and in full-featured operation when installed as an ARDUINO shield onto a compatible host microcontroller evaluation board.

To facilitate rapid evaluation, Frontgrade provides a software API for the UT32M0R500 Arm M0+ evaluation board to service the Smart Power Switch Controller along with a run-time executable graphical user’s interface (GUI).

Key Tech Specs
  • Features:
  • 8 V – 36 V eFUSE Power Switch Controller
  • Single or Dual-Supply Operation 
    • High Voltage Power Supply +8 V to +36 V
    • Lower Voltage Digital and Analog +3.0 V to +3.6 V
  • Load Power Switching with Inrush Current Limiting
  • Forward Overcurrent and Short Circuit Protection
    • <500ns Typical Short Circuit Break Response
  • Optional OR-FET with Reverse Current Protection
  • Line and Load Side Voltage Monitor and Protection
  • Optional Digital Voltage and Current Telemetry
    • 10-bit VIN/VOUT/IDS Telemetry (via PMBusTM)
  • Latching/Retriggerable/Pulsing Power FET Control
  • Applications:
  • Power Distribution with Short Circuit Protection
  • SpaceVPX PowerUM Power Switching
  • Launch-Vehicle Long Power Harness Splicing
  • Subsystem Electronics Power Switching
  • Uninterruptable Power Supplies 
  • Thruster and Waveguide Actuation Controller
  • Pyro ARM-FIRE Controller
  • Operational Environment:
  • Temperature Range: -55°C to +105°C
  • Total Ionizing Dose: <300 krad (Si)
  • SEL Immune: ≤100 MeV-cm2/mg
  • SEU Rate: <1 x E-10 errors/bit-day
  • SET Onset: >37 Mev-cm2/mg
  • Physical:
  • 47-Lead Dual Flat Pack
  • 16.1 mm x 10.75 mm, 0.635 mm pitch
  • Power:
  • 70 mW with Dual Supply at 36V AVDD & 3.6V VDD
  • Flight Grade:
  • QML-Q, QML-V
  • Export Control Classification Number (ECCN):
  • 9A515.e.1
  • SMD Number:
  • 5962-20206
  • Evaluation Kit:
  • SPSC-EVB Evaluation Board
  • ARDUINO Male-Male Jumper Wire
  • SPSC-EVB Evaluation Kit User Guide


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