TDA7491MV 25 W mono BTL class-D audio amplifier Datasheet - production data Description The TDA7491MV is a mono BTL class-D audio amplifier with single power supply designed for LCD TVs and monitors. Thanks to the high efficiency and an exposed-pad-down (EPD) package no heatsink is required. Furthermore, the filterless operation allows a reduction in the external component count. PowerSSO-36 with exposed pad down The TDA7491MV is pin to pin compatible with the TDA7491P, TDA7491LP and TDA7491HV for the left channel. Features 20 W continuous output power: R = 8 , L THD = 10% at V = 18 V CC 25 W continuous output power: R = 6 , L THD = 10% at V = 16 V CC Wide range single supply operation (5 V - 18 V) High efficiency ( = 90%) Four selectable, fixed gain settings of nominally 20 dB, 26 dB, 30 dB and 32 dB Differential inputs minimize common-mode noise Filterless operation No pop at turn-on/off Standby and mute features Short-circuit protection Thermal overload protection Externally synchronizable Table 1. Device summary Order code Operating temp. range Package Packaging TDA7491MV13TR - 40 to 85 C PowerSSO-36 EPD Tape and reel March 2014 DocID14576 Rev 4 1/28 This is information on a product in full production. www.st.comContents TDA7491MV Contents 1 Device block diagram 5 2 Pin description . 6 2.1 Pin out 6 2.2 Pin list . 7 3 Electrical specifications 8 3.1 Absolute maximum ratings . 8 3.2 Thermal data . 8 3.3 Electrical specifications . 8 4 Characterization curves . 11 4.1 Test board 16 5 Package mechanical data 17 6 Applications circuit . 19 6.1 Compatibility with TDA7491 stereo BTL family 19 7 Application information . 20 7.1 Mode selection . 20 7.2 Gain setting . 21 7.3 Input resistance and capacitance . 21 7.4 Internal and external clocks . 22 7.4.1 Master mode (internal clock) . 22 7.4.2 Slave mode (external clock) . 22 7.5 Filterless modulation 23 7.6 Output low-pass filter 24 7.7 Protection function 25 7.8 Diagnostic output . 25 7.9 Heatsink requirements . 26 8 Revision history . 27 2/28 DocID14576 Rev 4