Power Selection Jumper; Provider And Consumer Switch - Infineon EVAL PMG1 S3 DUALDR User Manual

EVAL_PMG1_S3_DUALDRP Evaluation Kit user guide
EVAL_PMG1_S3_DUALDRP kit system design
3.1.1

Power selection jumper

The EZ-PD™ PMG1-S3 MCU on the EVK can operate with two possible external supply voltages, VBUS, or VSYS.
The VDDIO supply powers the device I/Os. VDDD generates 3.3 V from an internal regulator, and this can be
shorted to VDDIO. VCCD is the output voltage from the core regulator and this pin is intended to connect only a
decoupling capacitor. The VCCD pin cannot be used as a voltage source. The EZ-PD™ PMG1-S3 MCU has power
supply inputs at the VCONN pin to provide power to EMCA cables through the integrated VCONN FETs.
The onboard EZ-PD™ PMG1-S3 MCU supports two types of powering modes:
Programming mode: For programming using the onboard KitProg3, the kit gets powered through the
•
KitProg3 USB Type-C port (J1) or the SWD header (J8), whichever is available. When the Programming mode
setting is selected, power from the programming connector (J4 or J8) is connected to the VSYS pin of the
EZ-PD™ PMG1-S3 MCU.
Operational mode: For normal operation, the prototyping kit gets powered through 24 V power input at
•
J11 and J12 in Source mode operation or Type-C adapter port in Sink mode operation. The input power is
fed to the 5 V regulator and 3.3 LDO network to generate the system power, which powers the EZ-PD™
PMG1-S3 MCU.
The position of the power selection jumper(J5) decides the power input connected to the MCU and selects
between the programming and operation power supply. Short pins 1–2 (V3P3) for Operational mode and short
2–3 (VIN) for Programming mode.
Figure 6 Power selection jumper
Note: The EZ-PD™ PMG1-S3 MCU can be powered via VBUS_C_P0 & VBUS_C_P1 pins also. So, in the Sink
mode the prototyping kit can get power directly from the Type-C_VBUS and can function without
the jumper connection.
3.2

Provider and consumer switch

The EVK provides two USB Type-C ports that are capable of DRP operation. For each port, there are two paths
that VBUS power can travel through:
Provider path (sourcing of power)
•
Consumer path (sinking of power)
•
User guide 14 002-38187 Rev. *B
2024-09-23