PUBLIC
FEATURES
8V-36V Power Bus Switching
oSingle-Supply Stand-Alone Operation
oDual-Supply ARDUINO Hosted Operation
5ms VOUT Linear Power-Up Ramp Rate
2.5ms VOUT Linear Power-Down Ramp Rate
oFeature for Commanded Stop and
Overcurrent Limit Fault Trip
2.5A Overcurrent Fault Limit
o162ms Overcurrent Fault Timeout
5A Short Circuit Fault Threshold
o500ns Short Circuit eFusing Response
Stand-Alone Operation Requires User Jumper
Wires to ENABLE Operation and Issue RESET#
Command
Full-Feature Operation Achieved with ARDUINO Host
ARDUINO Shield Form Factor
oHost Microcontroller Command & Control of
SPSC Accomplished through I2C SerCom
using PMBus™ Protocol
oSoftware API available for UT32M0R500-EVB
o(TBD) Software API for ST-NUCLEO L053
EVB
Analog Telemetry Measured by SPSC Available
via PMBus™ Communication Port
oTelemetry: VIN, VOUT, and LOAD Current
Dual-Power FET OR’ing Switch Functionality with
Reverse Current Fault Protection
INTRODUCTION
The 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 SPSC. 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, Cobham provides software API for the UT32M0R500 Arm M0+ evaluation board to
service the SPSC host controller along with a run-time executable graphical user’s interface (GUI). Refer to the
SPSC_SoftwareUsersGuide.pdf for documentation on GUI operation. Additionally, the UT32M0R500 software API
is available for download on the Cobham Webpage (https://www.cobhamaes.com/pagesproduct/prods-hirel-
arm.cfm) along with an application note detailing how to program the UT32M0R500-EVB.
1REFERENCE DOCUMENTS
UT36PFD103 SPSC Data Sheet
Document Presently Supplied after NDA is in place
SPSC-EVB GUI User’s Guide
Document Presently Supplied after NDA is in place
UT32M0R500-EVB User’s Manual
https://www.cobhamaes.com/pagesproduct/datasheets/UT32M0R500
_EVB_Users_Guide.pdf
UT32M0R500 ARM M0+
Functional Manual
https://www.cobhamaes.com/pagesproduct/datasheets/UT32M0R500
_Functional_Manual.pdf)
UT32M0R500-EVB to SPSC-EVB API
Downloadable after signing End User License Agreement
SPSC-EVB-GUI Runtime Executable
Downloadable after signing End User License Agreement
Power Management
SPSC-EVB-R0 Evaluation Board
for UT36PFD103 Smart Power Switch Controller
Evaluation Kit User Manual
Cobham.com/HiRel
August 2019
The most important thing we build is trust
