Part Number: TPA3255 Hello,
We have implemented a dual TPA3255 amplifier design. On our first prototypes, most of the amplifiers are failing. The symptom we see is the RESETn pin is shorted to GND. Could this be caused by firmware not following the…
Part Number: TPA3255 For a self-oscillating Class-D amplifier with a simple feedback from the output (pre-LPF) to the mixing input of the integrator, the voltage-gain equation is proportional to the ratio of feedback/audio input resistor values times…
Part Number: TPA3255 We are developing an amplifier using the TPA3255 in PBTL mode. We have a 48V PVDD supply, and 2 ohm load. Testing was done with a 1kHz sine wave.
When we increase the signal level, we start to see the CLIP_OTW become active when…
Part Number: TPA3255 Hi all, I'm tinkering with a new amplifier project, and the TPA3255 looks perfect, except I need a bit more power output.
I'm looking for about 110W x 2 @ 4 Ohms, about 200W x 2 @ 2 Ohms, and then being able to bridge it to about…
Part Number: TPA3255 Hi team,
Attached is the schematic for your reference. This circuit has been in use for 2 weeks.
The issue I encountered is that there is no audio output. During debugging, I found that OUTA has no PWM signal, while OUTB is still…
Part Number: TPA3255 Dear Support Teams:
We designed a 300W*2 BTL output power amplifier with TPA3255. When testing the output power, we found that the efficiency was very poor when testing with a 4ohm pure resistance load. When the output power was…
Part Number: TPA3255 Hello,
The peripheral circuit of the TPA3255 has been checked and confirmed to follow the datasheet recommendations.
We have isolated the TPA3255 section for individual validation.
The amplifier supply voltage is 50V. During…
Part Number: TPA3255 Tool/software: Hi Team, i have designed an class D amplifier of 240W. In mu system I have connected a ferrite bead of 1K @ 100MHz between the circuit ground and the xlr, RCA connector ground.
When i connect the connector to the…
Part Number: TPA3255
Tool/software:
Hello,
I'm working on a audio amplifier project and I'm running into a problem,
the fault pin is always low ( active-low) and respond to reset correctly
Low-side off the output stage are ON.
Signals in input…
