Power Requirements - Texas Instruments TPA721 User Manual

3.3.4

Power Requirements

The TPA721 MSOP audio power amplifier evaluation module can operate
from any voltage between approximately 2.5 V and 5.5 V; however, the
TPA721 amplifier IC on the module is characterized for operation at 3.3 V and
5 V. For best performance (highest output power with lowest distortion), the
module should be operated at approximately 5 V, unless there is a specific
reason for operating it from a lower voltage.
The TI plug-n-play audio amplifier evaluation platform with a voltage regulator
EVM installed on it can provide a regulated V
unregulated V
including an onboard 9 -V battery. Or, an external regulated power source can
be used to supply V
evaluation modules installed on it.
The platform is equipped with overvoltage and reverse-polarity supply voltage
input protection in the form of fused crowbar circuits.
voltage inputs between approximately 5.5 V and 12 V,
CC
voltage to the platform and the TPA721 MSOP
DD
V voltage applied to platform screw terminals J6 MUST NOT exceed
DD
the absolute maximum rating for the TPA721 amplifier IC installed on the
evaluation module (6 V) or damage to the IC may result. In no case should
V voltage of the incorrect polarity or in excess of 6.1 V be applied to
DD
screw terminals J6 of the platform, or the power protection circuit on the
V line will trip.
DD
V voltage applied to the platform MUST NOT exceed the maximum
CC
voltage input specified for the voltage regulator module installed in socket
U6 (12 V for the SLVP097), or damage to the voltage regulator module
may result. In no case should V
15 V, or the overvoltage protection circuit on the V
Power Requirements
supply from a wide variety of
DD
voltage applied to the platform exceed
CC
bus will trip.
CC
Details 3-9