LC Filter

OUTPR

4.5V-26V

PSU

Left

Right

TPA3131D2

TPA3132D2

PBTL

Detect

OUTNR

OUTPL

OUTNL

TPA3131D2, TPA3132D2

SLOS841B – SEPTEMBER 2013 – REVISED JANUARY 2015

www.ti.com

7.4 Device Functional Modes

7.4.1 Mono Mode (PBTL)

The TPA313xD2 can be connected in MONO mode enabling up to 85W output power. This is done by:

•

Connect INPL and INNL directly to Ground (without capacitors) this sets the device in Mono mode during

power up.

•

Connect OUTPR and OUTNR together for the positive speaker terminal and OUTNL and OUTPL together for

the negative terminal.

•

Analog input signal is applied to INPR and INNR.

Figure 28. Output Mode select

20

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