Texas Instruments provides a recommended PCB layout in the application note SLUA271, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
The selection of the transformer depends on the specific application requirements, such as output power, voltage, and frequency. Texas Instruments provides a transformer selection guide in the application note SLUA272, which includes guidelines for selecting the right transformer and calculating the transformer's turns ratio, inductance, and leakage inductance.
The maximum operating temperature range for UCC35702D is -40°C to 125°C, as specified in the datasheet. However, the device's performance and reliability may be affected at extreme temperatures, and it is recommended to operate the device within a temperature range of 0°C to 85°C for optimal performance.
The UCC35702D has built-in OVP and UVP circuits, but they can be adjusted or customized using external components. Texas Instruments provides guidelines for implementing OVP and UVP in the application note SLUA273, which includes examples of circuit configurations and component selection.
The input capacitor selection depends on the specific application requirements, such as input voltage, frequency, and ripple current. Texas Instruments recommends using a low-ESR capacitor with a value of 10uF to 22uF, and a voltage rating of 1.5 to 2 times the maximum input voltage. The application note SLUA274 provides more detailed guidelines for input capacitor selection.
UCC35702D datasheet
by Texas Instruments
