TDA7491HV
20 W + 20 W dual BTL class-D audio amplifier
Features
■
20 W + 20 W continuous output power:
RL = 8 Ω, THD = 10% at VCC = 18 V
■
Wide-range single-supply operation (5 V - 18 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
■
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 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-down (EPD) package no separate
heatsink is required.
The TDA7491HV is pin-to-pin compatible with the
TDA7491P and TDA7491LP.
Table 1.
Device summary
Order code
Operating temperature
Package
Packaging
TDA7491HV
-40 to 85°C
PowerSSO-36 EPD
Tube
TDA7491HV13TR
-40 to 85°C
PowerSSO-36 EPD
Tape and reel
September 2011
Doc ID 14242 Rev 6
1/41
www.st.com
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