Part Number: LM4675
Hi everyone,
we believe to have found an "anomalous" behavior of the device during its start-up transient (better to say exit from shutdown).
We think that in this situation, which is quite long, roughly a few ms, there is a continuous current in the load (a loudspeaker). In the specific case of our application, the situation is critical, since it is a low-power system that is not battery-assisted. At the moment we think we have solved the problem by putting a 100 uF capacitor in series with the 8 Ohm loudspeaker which is then the load of the class D amplifier.
Is our interpretation correct? Could this instead depend on an excessively high value (10 uF) of the capacitances placed in series with the differential input of the class D amplifier?
Please note that we use the single ended input configuration.
Thanks in advance for your support.
Regards,
Adrian
