The TPA3138D2 is a 10-W/ch, high-efficiency, low-idle-current Class-D stereo audioamplifier. It can drive stereo speakers with a load as low as 3.2-Ω. In the 1SPW mode, it consumesa low idle current of only 21-mA (12-V) and can operate down to 3.5-V, allowing for longer audioplay and improved thermal performance in bluetooth speakers, battery-powered appliances and otherpower-sensitive applications.
Advanced EMI Suppression with Spread Spectrum Control enables the use of inexpensiveferrite bead filters while meeting EMC requirements for system cost reduction.
To further simplify the design, the TPA3138D2 integrates essential protection featuresincluding undervoltage, overvoltage, power limit, short circuit, overtemperature, as well as DCspeaker protection. All of these protections come with automatic recovery.
Customers can leverage every TPA3138D2 feature in existing designs as it is fullypin-to-pin compatible to TIs TPA3110D2, TPA3136D2 and TPA3136AD2.
Feature
Wide Supply Range 3.5-V to 14.4-V
2 × 10 W into 6-Ω, 1% THD+N, 12-V Supply
1 x 18.5 W into 4-Ω, 10% THD+N, 12-V Supply
THD+N : 0.04% at 1 W, 1 kHz input, 6-Ω
Longer Battery Life for Portable Applications:
Reduced Solution Size and Cost:
Flexible Audio Solution:
Single-ended or Differential Analog Inputs
Selectable Gain: 20 dB and 26 dB
Pop and Click-Free Startup
Integrated Protections and Auto Recovery:
Pin-to-pin, Pin-to-Ground, and Pin-to-Power Short Circuit Protection
Thermal Protection, Undervoltage Protection, and Overvoltage Protection
Power Limiter and DC Speaker Protection
Pin-to-Pin Compatible with TPA3110D2, TPA3136D2 and TPA3136AD2
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
