TDA7498E
Overview
The TDA7498E is a dual BTL class-D audio amplifier with a single power supply designed for high-efficiency home systems and active speaker applications. It supports both 2.0 stereo and 1.0 mono (parallel BTL) configurations, delivering up to 160W per channel into 4-ohm loads or 220W in mono into 3-ohm loads. The device operates across a wide supply voltage range of 14V to 36V and includes integrated features for thermal and short-circuit protection.
Why Choose This Part
The primary advantage is the high power density provided by the PowerSSO-36 package with an exposed pad up (EPU), which facilitates efficient heat sinking to the top of the device. It offers excellent efficiency (up to 85 percent), reducing the need for massive heatsinks, and includes smart features like differential inputs to minimize common-mode noise and integrated standby/mute functions.
Applications
Key Specifications
Getting Started
When designing with the TDA7498E, ensure the PCB layout includes a robust thermal path for the PowerSSO-36 EPU package, typically involving an external heatsink mounted to the top of the IC. Reference the EVAL-TDA7498E demonstration board for optimized component placement and output filter selection (inductors and capacitors) to meet EMI requirements. Developers should pay close attention to the decoupling of the Vcc pins and the configuration of the GAIN and MODE pins for specific application needs.
