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.