I'm using the eval module for the TPA2100P1 and am seeing consistent 300kHz oscillation at the output (same as the class-D switching frequency). This is happening with a) no input connected, b) input grounded, c) input driven high, d) outputs open e) outputs to a standard piezo that works fine with a TI class H driver.
Any ideas why I'm seeing this oscillation and thus also a 20mA quiescent draw for the TPA2100P1 when the datasheet says 5.5mA?
thanks!
