TDA7496L datasheet by STMicroelectronics

TDA7496L Frequently Asked Questions (FAQs)

• What is the recommended power supply decoupling for the TDA7496L?
  STMicroelectronics recommends using a 10uF ceramic capacitor and a 100nF ceramic capacitor in parallel, placed as close as possible to the power supply pins (VP and VN) to ensure stable operation.
• How do I configure the gain of the TDA7496L?
  The gain of the TDA7496L can be configured by connecting a resistor (Rg) between the GAIN pin and the negative power supply (VN). The gain is calculated as 20 dB + (Rg/1.2 kΩ).
• What is the maximum power dissipation of the TDA7496L?
  The maximum power dissipation of the TDA7496L is 30W, assuming a junction temperature of 150°C and a thermal resistance of 2.5°C/W. However, this value can be derated based on the ambient temperature and the thermal design of the system.
• Can I use the TDA7496L in a bridged configuration?
  Yes, the TDA7496L can be used in a bridged configuration to increase the output power. However, this requires careful consideration of the power supply, PCB layout, and thermal design to ensure reliable operation.
• How do I protect the TDA7496L from overheating?
  The TDA7496L has a built-in thermal shutdown feature that turns off the device when the junction temperature exceeds 150°C. Additionally, a thermal warning flag (TWF) is available to alert the system of an impending overheating condition.