The TDA7491LP 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-down (EPD) package no separate heatsink is required. Furthermore, the filterless operation allows a reduction in the external component count. The TDA7491LP is pin-to-pin compatible with the TDA7491P and TDA7491HV.
The document describes the TDA7491LP, a dual bridge-tied load (BTL) Class-D audio amplifier featuring filterless operation and no 'pop' at turn-on/off. It is specifically designed for use in LCD TVs and monitors with single power supply operation ranging from 5 V to 14 V.
| Supply Voltage Range | 5 V - 14 V |
|---|---|
| Efficiency | 90% |
| Gain Settings | 20 dB, 26 dB, 30 dB and 32 dB |
| Operating Temperature Range | -40 to 85°C |
No, the device features no 'pop' at turn-on/off.
It provides 5W+5W continuous output power at 8 ohms with 10% THD at 9V, or 5W+5W at 4 ohms with 10% THD at 6.6V.
The device supports a wide range single supply operation from 5V to 14V.