ST STCC2540, User Manual

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STCC2540 demonstration board UM1551
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Appendix B STCC2540 demonstration board
Introduction
This demonstration board allows easy measurement of STCC2540 parameters and
evaluation of all its functions and operating modes. The STCC2540 device is simplified
version of the STCC50x1 so the demonstration board is the same.
In this section, only the differences between the STCC2540 and STCC5021 are described.
Please refer to
Section : Introduction , Features , Description and Appendix A of this
STCC50x1, STCC2540 demonstration board user manual for more information.
Features

USB 2.0 SDP or CDP data passthrough with S3 remote wakeup support or automatic
charging

Permanent USB 3.0 superspeed data passthrough between input and output USB
connector

CDP mode with charging indication after CDP negotiation

DCP modes with charging indication (BC1.2 mode, divider mode, autodetect mode)

Charging/end of charging detection and indication

Resistor-programmable precise current limiter and short-circuit protection
Quick guide and default configuration
Jumper and selector settings for default configuration
J5: ON (closed)
SW6: V
EXT
(1 - 2)
Other settings make no sense for the STCC2540 device and are not recommended.
Board settings and connections
Variable resistor
Resistor R18
The STCC2540 device is not using the V
DD
power supply so this resistor has no effect on
device functionality.