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10 W + 10 WD Class Audio Amplifier Demonstration Board Based on TDA7491P

STEVAL-CCA028V1

Overview

The STEVAL-CCA028V1 demonstration board is designed for the TDA7491P high-power dual BTL class-D audio amplifier.

Thanks to its high efficiency, the device assembled in the PSSO36 (slug-down) package is capable of dissipating heat without any heatsink.
Jumpers on the board allow configuring the amplifier in order to verify all the features as single-ended or differential inputs, fixed gain settings.
Microswitches are also provided to enable the standby and mute functions.

Main features

10 W +10 W continuous output power at THD = 10%, R_L= 6 Ω, VCC = 11 V
9.5 W + 9.5 W continuous output power at THD = 10%, R_L= 8 Ω, VCC = 12 V
Wide-range single-supply operation (5-18 V)
High efficiency (η = 90 %)
Four selectable, fixed gain settings (20 dB, 26 dB, 30 dB and 32 dB)
Differential inputs to minimize common-mode noise

Filterless operation
Standby and mute features
Short-circuit and thermal overload protections
Externally synchronizable
RoHS compliant

Design Files

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Update:2025-06-21 04:46:01

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