The recommended layout and placement for the UC2825ADWG4 can be found in the Texas Instruments application note 'UC2825A, UC3825A, UC4825A, UC5825A, UC7825A, UC9825A Switching Regulator Design Considerations' (SLUA144). It provides guidelines for PCB layout, component placement, and thermal management to ensure optimal performance and reliability.
Choosing the right inductor for the UC2825ADWG4 involves considering factors such as inductance value, current rating, and core material. Texas Instruments provides a list of recommended inductors in the datasheet, and also offers an inductor selection tool on their website. Additionally, the application note 'UC2825A, UC3825A, UC4825A, UC5825A, UC7825A, UC9825A Switching Regulator Design Considerations' (SLUA144) provides guidance on inductor selection and design considerations.
The UC2825ADWG4 has an absolute maximum input voltage rating of 18V. However, the recommended operating input voltage range is 8V to 15V. Exceeding the absolute maximum input voltage can damage the device.
The UC2825ADWG4 does not have built-in overvoltage protection (OVP). However, OVP can be implemented using an external voltage monitor IC, such as the TLV703, and a voltage comparator, such as the TLV7031. The application note 'UC2825A, UC3825A, UC4825A, UC5825A, UC7825A, UC9825A Switching Regulator Design Considerations' (SLUA144) provides an example of an OVP circuit implementation.
The UC2825ADWG4 datasheet recommends an output capacitor with an ESR of 0.1 ohms or less. However, the actual ESR requirement may vary depending on the specific design and operating conditions. A lower ESR output capacitor can help to reduce output voltage ripple and improve overall system performance.
UC2825ADWG4 datasheet
by Texas Instruments
