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.
|Max. Power to Bridge Tied Load|
|Max. Power to Parallel Bridge Tied Load|
|Min. Supported Bridge Tied Load|
|Min. Supported Parallel Bridge Tied Load|
|Max Speaker Outputs (#)|
|Analog Supply Min [V]|
|Analog Supply Max [V]|
|Power Stage Supply Min (V)|
|Power Stage Supply Max (V)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|Power Limiter||Power Limiter||Power Limiter||Power Limiter|
|-40 to 85||-40 to 85||-40 to 85||-40 to 85||-40 to 85||-40 to 85|
|1.80 | 1ku||0.85 | 1ku||1.65 | 1ku||1.30 | 1ku||1.10 | 1ku||1.20 | 1ku|
|Class D||Class D||Class D||Class D||Class D||Class D|
|Sample & Buy||Sample & Buy||Sample & Buy||Sample & Buy||Sample & Buy||Sample & Buy|