Power Requirements
3-10 Details
3.3.4 Power Requirements
The TPA311 MSOP audio power amplifier evaluation module can operate from
any voltage between approximately 2.5 V and 5.5 V; however, the TPA311
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 VDD supply from a wide variety of
unregulated VCC voltage inputs between approximately 5.5 V and 12 V,
including an onboard 9-V battery . Or , an external regulated power source can
be used to supply VDD voltage to the platform and the TPA311 MSOP
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.
VDD voltage applied to platform screw terminals J6 MUST NOT exceed
the absolute maximum rating for the TPA311 amplifier IC installed on the
evaluation module (6 V) or damage to the IC may result. In no case should
VDD voltage of the incorrect polarity or in excess of 6.1 V be applied to
screw terminals J6 of the platform, or the power protection circuit on the
VDD line will trip.
VCC voltage applied to the platform MUST NOT exceed the maximum
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 VCC voltage applied to the platform exceed
15 V, or the overvoltage protection circuit on the VCC bus will trip.