Part Number: LP8556 Hello
We are using the LP8556 in an application with special characteristics. Each channel has a different set of LEDs and therefore different voltage requirements. The system firmware lights up the LEDs for different channels in…
Part Number: LP8556 Hi,
I need to know the access times for the LP8556-E09 that I indicate below:
1 - After Power-On (with stable Vdd), how long does it take for the LP8556 to become available for I2C communication?
2 - After a LOW -> HIGH transition…
Part Number: LP8556 Tool/software: Dear team
Lenovo tablet team want to use LP8556 to drive a 6P9S, a LED panel with 6 LED series. 69PS has the following spec, I see with 3V input, 28V output, the required current is 170mA. Is LP8556 able to drive…
Part Number: LP8556 In the datasheet, the WQFN package lists only one device option ' "PWM Only" - Recommended for systems without an I2C master'. Is this refering to the part itself or the power on default?
Part Number: LP8556 Tool/software: My board seems to be worksing fine. I've got 2 LP8556SQ-E08/NOPB devices operating under I2C control that are driving my display's backlight.
But, when I send my list of configs over I2C, status register 0x02 reads…
Part Number: LP8556 Tool/software: Hi team,
Customer is testing LP8556in their system.
They find the SOC output fall time timing is faster that spec, while it match I2C public spec.
Now, communication is OK, could you help check if this is OK for…
Part Number: LP8556 Tool/software: Dear team,
My customer is using LP8556 in quite margin state, they need Vout MAX = 21V, VIN 3.3V-4.5V, Iout per channel = 29mA, 6 channel.
Based on the D/S, sometimes it mentioned:
MAX iout is 50mA, but in the…
Part Number: LP8556 Tool/software: Hi team We would like to use LP8556SQ-E08/NOPB for pure hardware test, no software engagement. 1. LP8556SQ-E08/NOPB is "PWM Only" without I2C master, could we directly pull pwm pin to high (VDD power domain), as 100…
Part Number: LP8556 Other Parts Discussed in Thread: TPS923655 Tool/software: Hi Team,
We have a system with 60 white LEDs driven with a forward current of ~1.3A approx. The supply to the LED is controlled by a discrete load switch which is enabled…
