Other Parts Discussed in Thread: TPA3129D2
Hi,
I am attempting to use the TPA3128D2 or TPA3129D2 with a single speaker of 4 ohm impedance.
In section 6.3 of the datasheet, PBTL minimal, nominal load impedance of 1.6, 2 and 3.2, 4 ohms is given for the 3128 and 3129 respectively. In section 6.7 there are charts for Maximum Power Output given for 2 and 3 ohm impedance (Figure 20 and 24 respectively), but not a 4 ohm impedance.
Question: Could anyone provide me with an additional resource that shows Maximum Power Output for PBTL over 4 ohm impedance, or can anyone provide me a way to make a rough estimate of these characteristics.
Background:
I require a high efficiency Class D Amplifier for a portable, battery powered, speaker design.
Speaker: Dayton Audio RS100-4
- 4 Ohm Impedance
- 30 Watts RMS
- 60 Watts Max
- 87.5 dB @ 2.83V/1m (2W) Sensitivity
Thank you
