Part Number: LP8863-Q1 Hi team,
When the LP8863 is used in SEPIC mode, the output voltage is up to 24V in the data sheet. Is it not supported if customers set the voltage to more than 24V by changing resistance?
If they use higher value (e.g. 27Vout)…
Part Number: LP8863-Q1 Hi all,
I read the datasheet about the LED Open and Short Logic, I Want to make sure some item,
Condition
Vheadroom Min = 0.55V
Vheadroom Max = 0.55+0.5V (Hysteris)
LED Short detection Threshold we set = 4.2V
Our LED0-5 Result…
Part Number: LP8863-Q1 Condition: Under low temperature environment, LED Short Fault message occurs
LED Array:Four strings and two parallels
LED short detection threshold:shorted_led_thresh = 100(4.2V)
LED VF:2.8~3.6V( temperature:25° C)
LED Driver…
Part Number: LP8863-Q1 Hello,
I would like to ask you a question about LP8863-Q1. (Question) Where is the Exposed Pad (DAP) connected to the internal circuit? The Pin Functions description states that it is connected to LED ground. Is it the red circle in…
Part Number: LP8863-Q1 Hi Team,
on customer behalf I have a question about the purpose of Vovpl and Vovph thresholds of LP8863.
What is the reason to have two additional thresholds for the FB pin ? Is it to protect against some input voltage transients…
Part Number: LP8863-Q1 Hi All
I have a question about Feedback resistor
I tried to find it from the datasheet but I cannot find it,
in LP8863, The RFB2 Recommendation for SEPIC design is 170kOhm,
I would like to know, how to get 170kOhm, I Tried to calculate…
Part Number: LP8863-Q1 Hi all
I have a question regarding the LP8863s LED Driver
currently I am verifying the LED Driver, we use the I2C register to set the LED Driver,
and for the LED Output String, we use 6 Channels with Automatic Phase Shift 60 degree…
Part Number: LP8863-Q1 Hello!
I am attempting to drive an LED string at near 900mA using the LP8863 in the following setup:
SEPIC mode with 24V input and 23.2V max output with RFB1=150k and RFB2=470k.
400 kHz switching frequency
33uH coupled inductor…
Part Number: LP8863-Q1LP8863-Q1_Design Tool_for Publish_Final_Protected_10_07_23.xlsx BLC_V1_5942760_PDF_29_08_23.pdf
Hi,
I drive leds with the lp8863.
The power on the card is O.K and the SPI communication working.
The leds are flickering (all the…
Part Number: LP8863-Q1 Hi, Team
Hope you are doing well!
My customer is evaluating our LP8863-Q1 and has some questions about our device.
(1) What's the internal structure of SS_ADDRSEL Pin? Is there any Pull Down or Pull Up resistors?
(2) For input…