1 Features

1• 2 × 10 W/ch into 6-Ω loads at 10% THD+N from a

12-V supply

• 2 × 10 W/ch into 8-Ω loads at 10% THD+N from a

13-V supply

• Up to 90% Efficient class-D operation (8 Ω)

eliminates need for heat sinks

• <0.05% THD+N at 1 W/4 Ω/1 kHz

• Wide supply voltage range allows operation from

4.5 V (8 V for TPA3136AD2) to 14.4 V

• Inductor-free operation

• Enhanced EMI performance with spread spectrum

• SpeakerGuard™ speaker protection includes

power limiter and DC protection

• Robust pin-to-pin, pin-to-ground, and pin-to-power

short circuit protection and thermal protection

• 26-dB Fixed gain

• Single-ended or differential analog inputs

• Click and pop free startup

2 Applications

• Televisions

• Bluetooth, wireless speakers

• Mini speakers

• USB speakers

• Consumer audio equipment

3 Description

The TPA3136D2, TPA3136AD2 device an efficient,

Class-D audio power amplifier for driving bridged-tied

stereo speakers at up to 10 W, 6 Ω, or 8 Ω (per

channel).

Advanced EMI Suppression Technology with Spread

Spectrum Control scheme enables the use of

inexpensive ferrite bead filters at the outputs while

meeting EMC requirements for system cost reduction.

The TPA3136D2, TPA3136AD2 device is not only

fully protected against shorts and overload, the

SpeakerGuard™ speaker protection circuitry includes

a power limiter and a DC detection circuit for

protection of the connected speakers. The DC detect

and Pin-to-Pin, Pin-to-Ground, and Pin-to-Power

Short Circuit protection circuit protect the speakers

from output DC and pin shorts caused in production.

The outputs are also fully protected against shorts to

GND, PVCC, and output-to-output. The short-circuit

protection and thermal protection includes an auto

recovery feature.

The TPA3136D2, TPA3136AD2 device can drive

stereo speakers with as low as 4-Ω impedance. The

high efficiency of the TPA3136D2, TPA3136AD2,

90% with an 8-Ω load, eliminates the need for an

external heat sink, and TPA3136D2, TPA3136AD2

will be able to output full power on a 2-layer PCB.