Mode Button; Kitprog3 Power And Status Leds; Kitprog3 Overvoltage Protection Circuit; Target Voltage Measurement - Infineon EVAL PMG1 S3 DUALDR User Manual

EVAL_PMG1_S3_DUALDRP Evaluation Kit user guide
Appendices
7.1.1.1

Mode button

The KitProg3 mode button on the EVK enables the KitProg3 module to enter Bootloader mode. The Bootloader
mode is required to update the KitProg3 firmware on PSoC™ 5LP MCU when the existing firmware is corrupted
or a newer version is available.
7.1.1.2

KitProg3 power and status LEDs

The KitProg3 power LED (LED2, amber) turns ON when the KitProg3 module is powered. The LED will always be
ON in a fault-free condition when the kit is powered through the programming connector.
The status LED (LED1, amber) indicates the KitProg3 USB connection and programming status. See the
KitProg3 user guide for details.
Figure 33 KitProg3 Power and status LED
7.1.1.3

KitProg3 overvoltage protection circuit

A MOSFET and a Zener diode-based protection circuit is implemented to protect the KitProg3 (PSoC™ 5LP MCU)
from damage due to overvoltage and reverse voltage fault on the programming Port (J1). The maximum rating
for the PSoC™ 5LP MCU device is 5.8 V; the circuit shuts down the power supply if the voltage exceeds 5.8 V.
Figure 34 Overvoltage protection circuit for KitProg3
7.1.1.4

Target voltage measurement

The KitProg3 module is required to monitor the voltage at which the target MCU is working. The measured
target voltage is used as the reference to configure the logic level for communication between the KitProg3 and
the EZ-PD™ PMG1-S3 MCU.
User guide 41 002-38187 Rev. *B
2024-09-23