SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.1 mm
Supply Current-Max:
1.5 mA
Supply Voltage-Max (Vsup):
5.5 V
Supply Voltage-Min (Vsup):
2.5 V
Surface Mount:
YES
Technology:
CMOS
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
3 mm
TPA311DGN Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the TPA311DGN datasheet (section 10.2) and in the application note SLAA461. The layout should prioritize heat dissipation, with thermal vias and a solid ground plane to help dissipate heat.
The input capacitor values depend on the input signal frequency, amplitude, and source impedance. A general rule of thumb is to choose a capacitor with a value between 1uF to 10uF, with a voltage rating that exceeds the maximum input voltage. TI also provides a capacitor selection guide in the datasheet (section 8.2).
The maximum power dissipation of the TPA311DGN is dependent on the ambient temperature, PCB layout, and heat sinking. The datasheet provides a power dissipation calculation formula (section 10.1) that takes into account the output power, supply voltage, and efficiency. Typically, the maximum power dissipation is around 20W to 30W.
The TPA311DGN has built-in overvoltage protection (OVP) and undervoltage protection (UVP) circuits. However, additional external protection circuits may be necessary depending on the application. TI recommends using a voltage supervisor or a power-on reset circuit to ensure the device operates within the recommended voltage range.
The recommended operating voltage range for the TPA311DGN is 8V to 26V, with a typical operating voltage of 12V to 18V. Operating the device outside of this range may affect its performance, efficiency, and reliability.
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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.
