Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital traces separate. Also, it's recommended to use a 10uF capacitor between VCC and GND, and to keep the input and output traces as short as possible.
The TRS3227EIDB has a built-in thermal shutdown feature that shuts down the device when the junction temperature exceeds 150°C. To handle this, ensure good thermal design and heat dissipation, and consider using a heat sink if necessary. Also, monitor the device temperature and take corrective action if it approaches the shutdown threshold.
The recommended input capacitance is 10uF, and the recommended output capacitance is 10uF to 22uF. However, the optimal capacitance values may vary depending on the specific application and operating conditions.
To ensure EMC, follow proper PCB design and layout guidelines, use shielding and filtering as necessary, and ensure that the device is properly decoupled from the power supply. Also, consider using a common-mode choke and a ferrite bead to reduce electromagnetic interference (EMI).
The recommended power-up sequence is to apply VCC first, followed by the input voltage. The recommended power-down sequence is to remove the input voltage first, followed by VCC. This helps to prevent damage to the device and ensures proper operation.
TRS3227EIDB datasheet
by Texas Instruments
