TDA7491HV Datasheet 20 W + 20 W dual BTL class-D audio amplifier Features 20 W + 20 W continuous output power: R = 8 , THD = 10% at V = 18 V L CC Wide-range single-supply operation (5 - 18 V) High efficiency ( = 90%) Four selectable, fixed gain settings of nominally 20 dB, 26 dB, 30 dB and 32 dB PowerSSO-36 exposed pad up Differential input minimize common-mode noise No pop at turn-on/off Standby and mute features Short-circuit protection Thermal overload protection External synchronisation PowerSSO-36 with exposed pad down Description The TDA7491HV is a dual BTL class-D audio amplifier with single power supply designed for LCD TVs and monitors. Thanks to the high efficiency and exposed-pad-up (EPU) and down (EPD) packages, no separate heatsink is required. The TDA7491HV is pin-to-pin compatible with the TDA7491P and TDA7491LP. Product status link TDA7491HV Product summary Order code TDA7491HV13TR Package PowerSSO-36 EPD Order code TDA7491HVU13TR Package PowerSSO-36 EPU Packing Tape and reel Temperature -40 to 85 C range DS5624 - Rev 10 - February 2021 www.st.com For further information contact your local STMicroelectronics sales office.TDA7491HV Device block diagram 1 Device block diagram Figure 1. Internal block diagram (showing one channel only) shows the block diagram of one of the two identical channels of the TDA7491HV. Figure 1. Internal block diagram (showing one channel only) DS5624 - Rev 10 page 2/50