Overview
The TDA7498L is a dual BTL class-D audio amplifier designed by STMicroelectronics, specifically tailored for home systems and active speaker applications. It operates on a single power supply and is packaged in a 36-pin PowerSSO package with an exposed pad up (EPU) to facilitate the mounting of a separate heatsink.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Power (THD = 10%) | 80 W + 80 W (RL = 6 Ω, VCC = 32 V) | W |
| Output Power (THD = 10%) | 70 W + 70 W (RL = 8 Ω, VCC = 34 V) | W |
| Supply Voltage Range | 14 - 36 V | V |
| Efficiency | 90% | % |
| Gain Settings | 25.6 dB, 31.6 dB, 35.1 dB, 37.6 dB | dB |
| Input Type | Differential inputs | |
| Operating Temperature Range | -40 to 85 °C | °C |
| Package Type | PowerSSO36 (EPU) | |
| Thermal Resistance (junction to case) | 2 - 3 °C/W | °C/W |
Key Features
- High efficiency (η = 90%)
- Four selectable, fixed gain settings
- Differential inputs to minimize common-mode noise
- Standby and mute features
- Short-circuit protection and thermal overload protection
- Externally synchronizable
- Wide-range single-supply operation (14 - 36 V)
Applications
The TDA7498L is designed for use in home audio systems and active speaker applications. Its high efficiency, robust protection features, and flexible gain settings make it suitable for a variety of audio amplification needs.
Q & A
- What is the output power of the TDA7498L at THD = 10% with RL = 6 Ω and VCC = 32 V?
80 W + 80 W
- What is the supply voltage range for the TDA7498L?
14 - 36 V
- What are the available gain settings for the TDA7498L?
25.6 dB, 31.6 dB, 35.1 dB, and 37.6 dB
- Does the TDA7498L have protection features?
- Can the TDA7498L be externally synchronized?
- What is the operating temperature range of the TDA7498L?
-40 to 85 °C
- What type of package does the TDA7498L come in?
PowerSSO36 with exposed pad up (EPU)
- How efficient is the TDA7498L?
It has an efficiency of 90%.
- What type of inputs does the TDA7498L have?
Differential inputs
- Can the TDA7498L be used in standby and mute modes?
