Part Number: LM3549 Other Parts Discussed in Thread: LM3435 ,
Tool/software:
Hi TI E2E
Before, I used the LM3435 as our Head Mount Display LED driver.
and the result is great, but in some rare case, such as the LED control is failed (I2C write…
Part Number: LM3549 Tool/software: Hi,
1) LM3549 exposed thermal pad should be connected to ground ?
2) Is the HTAB pin in the LM3549 evulation kit the same as the exposed thermal pad ?
Part Number: LM3549 Tool/software: Hi Team
About LCoS design , we plan to use LM3549 for LCoS R/G/B LED control,
the question is :
R/G/B LED duty signal from LCoS panel and connect to LM3549 R/G/B enable pin.
at this time , how to design PWM pin…
Part Number: LM3549 Hi Team,
below are several questions on LM3549
1. for brightness control, if just use I2C register, then can PWM pin be floating? we can ignore the PWM input signal at this time, right?
2. is there power sequence requirement…
Part Number: LM3549 Dear Sir/Ms.
I don’t have LM3549EVM for comparison. I would like to ask, are the following waveforms normal? The customer seems to be a large sawtooth wave. The customer changed L2 2.2uH to 4.7uH. The waveform is not change. Please…
Part Number: LM3549 Dear Sir/Ms.
How much time has passed after Power on can I2C Command be given to LM3549? How much time has passed after R/G/B Enablae can I2C Command be sent to LM3549? My customer used the polling method to issue I2C commands, and…
Part Number: LM3549 Other Parts Discussed in Thread: LP55281 , Hi Team,
Do we have RGB color sequential driver solution with SPI control and support buck boost to reduce LED headroom?
Like LM3549 but use SPI communication. Also, customer need to separate…
Part Number: LM3549 Hi Team,
The customer ask for difference between LM3529 & LM3549. But I only found drive current is different in two datasheet.
LM3529 Iout: 20mA ~ 665mA
LM3549 Iout: 107mA ~ 705mA
Are there any other difference?
Best…
Part Number: LM3549 Dear Sir/Ms.
My customer tested the function of Open / Short in RGB detection, there seems to be a problem? I remember to cooperate with the Enable signal? May I cooperate with the Enable signal, right? If multiple channels are Open…
Part Number: LM3549 On the X-axis in Figure 7, the current setting looks like 9 bits up to 1023, while the LED current setting registers from 01h to 12h have a 10-bit (8-bit and 2-bit) allocation. Does the D1 bit of the even address (02h, etc.), which…
