Part Number: LP8555 Tool/software: Hi team,
We met a issue in PAD that the screen shows red light during turned off, we suspect that it is due to the current is decrease too fast during turn off.
Do you think it is the root cause? Can LP8555 slow…
Part Number: LP8555 Tool/software: Hi Team,
Greeting!
We have currently found several cases of PAD screen flickering. It was observed that when the brightness is adjusted to about a 25% PWM duty cycle, flickering occurs. When the brightness is set…
Part Number: LP8555 Other Parts Discussed in Thread: LP5520 , LM3697 , LM3532 Dear TI technical support,
I contact you because I'm looking for a specific LED driver.
And after several hours of research, It seems that it is not so easy to find what…
Part Number: LP8555 What would the SW_B and FB_B pins be tied to if B bank was unused? Planning to not populate the inductor, diode and capacitors for powering Bank B.
Part Number: LP8555 The LP8555 datasheet recommends an inductance between 4,7uH and 6,3uH with 3,1A for most application. However in my application with L=4,7uH, i found a ratio between inductance peak to peak ripple current and mean inductance current…
Part Number: LP8555 Other Parts Discussed in Thread: TPS92360 , TPS61165 Hi,
LP8555 can connect two output A and output B together, provide total 12*40mA=480mA?
I have below 2+6 LED, but each channel need 60mA. But seems channel 1+ 3 + 5 total need…
Part Number: LP8555 Other Parts Discussed in Thread: LP5018 Hi Team,
TI have same NXP PCA9685 16 Chanel LED driver and I2C control?
PCA9685 16-channel, 12-bit PWM Fm+ I2C-bus LED controller (nxp.com)
Part Number: LP8555 Hi,
The datasheet that there is a soft-start function in LP8555 section 8.3.1.1.
What are the specifications about this soft-start function?
With an inductance 10uH I measure a peak inductance current during start-up at 1…
Part Number: LP8555 Hello,
According to LP8555 datasheet page 6, VOUT/VIN (MIN) = 1,3.
In my application at minimum current ILED=5 mA, i have :
VIN (MAX)=5,5V and VOUT(MIN)=Vf(LED) * Number of LED = 1,764*4 = 7,056V => VOUT/VIN =1,28 <1,3 .
I…
