TDA7492E 2X75W D類音頻放大器

Description The TDA7492E is a dual BTL class-D audio amplifier with single power supply designed for home audio applications. The device is housed in a 36-pin PowerSSO package with exposed pad up (EPU), and as a result of its high efficiency, a simple heatsink is required.

Table 1: Device summary

   

Features • Wide-range single-supply operation (7 - 26 V) • Possible output configurations: − 2 x PBTL − 1 x Parallel BTL • BTL output capabilities (VCC = 26 V): − 61 W + 61 W, 4 Ω, THD 1% − 79 W + 79 W, 4 Ω, THD 10% − 44 W + 44 W, 6 Ω, THD 1% − 57 W + 57 W, 6 Ω, THD 10% − 34 W + 34 W, 8 Ω, THD 1% − 44 W + 44 W, 8 Ω, THD 10% • Parallel BTL output capabilities (VCC = 26 V): − 86 W, 3 Ω, THD 1% − 110 W, 3 Ω, THD 10% • High efficiency

• Four selectable, fixed-gain settings of nominally 20.8 dB, 26.8 dB, 30 dB and 32.8 dB • Differential inputs minimize common-mode noise • Standby, mute and play operating modes • Short-circuit protection • Output power limited by PLIMIT function • Detection of shorted output pins during startup • Thermal overload protection • ECOPACK® environmentally friendly package