The TPA31xxD2 series are stereo efficient, digital amplifier power stage for driving speakers up to 100 W / 2 Ω in mono. The high efficiency of the TPA3130D2 allows it to do 2 × 15 W without external heat sink on a single layer PCB. The TPA3118D2 can even run 2 × 30 W / 8 Ω without heat sink on a dual layer PCB. If even higher power is needed the TPA3116D2 does 2 × 50 W / 4 Ω with a small heat-sink attached to its top side PowerPAD. All three devices share the same footprint enabling a single PCB to be used across different power levels.
The TPA31xxD2 advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences; this is achieved together with an option of either master or slave option, making it possible to synchronize multiple devices.
The TPA31xxD2 devices are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.
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|Speaker Channels (Max)|
|Power to Bridge Tied Load (Max) (W)|
|Supported Bridge Tied Load (Min) (Ohms)|
|Analog Supply (V) (Min)|
|Analog Supply (V) (Max)|
|Power Stage Supply (Max) (V)|
|Audio Input Type|
|Operating Temperature Range (C)|
|Package Size: mm2:W x L (PKG)|
|-40 to 85||0 to 70||-20 to 85||-40 to 85||-40 to 85||-40 to 85|
|32HTSSOP: 89 mm2: 8.1 x 11(HTSSOP)||See datasheet (TO-220)||See datasheet (TO-220)||24HTSSOP: 50 mm2: 6.4 x 7.8(HTSSOP)||32HTSSOP: 89 mm2: 8.1 x 11(HTSSOP)||32VQFN: 25 mm2: 5 x 5(VQFN)|
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|Automotive||TPA3118D2-Q1||Q100 devices qualified for high-reliability automotive applications targeting zero defects|