TPA3136D2_17 Datasheet, PDF (1/35 Pages) Texas Instruments – 10-W Inductor Free Stereo (BTL) Class-D Audio Amplifier with Ultra Low EMI

Product
Folder
Order
Now
Technical
Documents
Tools &
Software
Support &
Community
TPA3136D2, TPA3136AD2
SLOS938D – MAY 2016 – REVISED MARCH 2017
TPA3136D2/TPA3136AD2 10-W Inductor Free Stereo (BTL) Class-D Audio Amplifier with
Ultra Low EMI
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 (8.0V 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA3136D2
HTSSOP (28)
9.70 mm × 4.40 mm
TPA3136AD2
HTSSOP (28)
9.70 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
RIGHT
Audio
Source
LEFT
And Control
TPA3136D2
TAS5630
SD
FAULT
Ferrite
Bead
Filter
Ferrite
Bead
Filter
PBTL Mode Select
Power Limiter Threshold Select
PBTL
SELECT
PLIMIT
Power Supply
4.5V-14.4V
110VAC->240VAC
Copyright © 2017, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.