Part Number: LM4951A Hi,
1. What does it mean by internally limited on power dissipation field under absolute maximum rating?
2. If Vdd is 8.4V, speaker load = 16ohm,
Based on the equation 2 in datasheet, Pd = 4*(8.4^2)/2*pi*16 = 0.89W.
Then Ta = 150…
Part Number: LM4951A Hi, I'm using LM4951A with a 4-ohm speaker as advised by TI support.
However, I note that at high volume setting, the amplifier is shutting down for hundreds of miliseconds.
This seems to be a current limiting rather than a thermal…
Part Number: LM4951A Other Parts Discussed in Thread: LM4951 Hi all,
we encountered weird behaviour of the LM4951 amplifier when using an small 0402 ceramic 1uF capacitor as CBypass. (VDD=7.2V, Cs=1u 50V X7R 0805, Ri=20k, Rf=100k, Rc=1k) On the Bypass- and…
Hi, Jonata,
The LM4951A could be an alternative for the LM4990, it supports higher power supply voltage (9V):
www.ti.com/.../LM4951A
If you are looking for a 12V level, the LM4952, LM4950 or LM4752 could be other solutions.
Best regards,
Luis Fernando…
Part Number: MSP430F5359 Other Parts Discussed in Thread: LM4951A Tool/software: Code Composer Studio Hello,
I'm using a audio PWM for Voice output . For that i compressed the sound signal and stored it in the flash. The stored voice don't have any…
Hi David,
According to the application requirements LM4951A seems a good fit.
16-Ohm speaker seems a relatively high impedance for that output power, these loads are usually used in headphone systems that require lower power. However, you can have an…
