TDA7491LP Datasheet, PDF (1/37 Pages) STMicroelectronics – 2 x 5-watt dual BTL class-D audio amplifier

TDA7491LP
2 x 5-watt dual BTL class-D audio amplifier
Features
■ 5 W + 5 W continuous output power:
R_L = 8 Ω, THD = 10% at V_CC = 9 V
■ 5 W + 5 W continuous output power:
R_L = 4 Ω, THD = 10% at V_CC = 6.6 V
■ Wide range single supply operation (5 V - 14 V)
■ High efficiency (η = 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
PowerSSO-36 with
exposed pad down
Description
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.
Table 1. Device summary
Order code
Operating temperature
Package
TDA7491LP
-40 to 85 °C
PowerSSO-36 EPD
TDA7491LP13TR
-40 to 85 °C
PowerSSO-36 EPD
Packaging
Tube
Tape and reel
March 2011
Doc ID 13541 Rev 5
1/37
www.st.com
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