SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.07 mm
Supply Current-Max:
0.65 mA
Supply Voltage-Max:
15 V
Supply Voltage-Min:
4 V
Supply Voltage-Nom:
14 V
Surface Mount:
YES
Technology:
BICMOS
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Turn-off Time:
0.07 µs
Turn-on Time:
0.07 µs
Width:
3 mm
UCC27322DGN Frequently Asked Questions (FAQs)
A good PCB layout for the UCC27322DGN involves keeping the input and output traces short and away from each other, using a solid ground plane, and placing the input and output capacitors close to the device. Additionally, it's recommended to use a shielded inductor and to keep the switching node (SW) away from sensitive analog circuits.
The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet. Additionally, consider the inductor's saturation current, DC resistance, and core material when selecting an inductor.
The UCC27322DGN is rated for operation from -40°C to 125°C. However, the device's performance and reliability may degrade at extreme temperatures. It's essential to consider the thermal design and heat dissipation in your application to ensure reliable operation.
Yes, the UCC27322DGN can be used in a synchronous rectification topology. However, it's essential to ensure that the device is properly configured and that the synchronous rectifier is properly sized to handle the output current and voltage.
To troubleshoot issues with the UCC27322DGN, start by checking the PCB layout, component values, and soldering quality. Use an oscilloscope to measure the input and output waveforms, and check for signs of oscillation or instability. Consult the datasheet and application notes for guidance on troubleshooting and debugging techniques.
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UCC27322DGN Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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