Hi, YUI,
It can provide stable current. And you can use D1 to D8 to achieve continuous pusing current.
Actually your accuracy is quite high. We don't have an LED driver can meet ~20mA ± <50µA and ~140mA ± < 2mA current.
But you can also take…
Hi, Viktorija,
We don't have a current source for 16 channels.
I think LP5018 should be a good candidate for PCA9685.
And LP55231 is a 9 channel current source driver.
Thanks.
Kenneth
Thanks for coming back so quickly.
Those are great parts. Needed is a 3 to 4 channel part.
Concerns are size and cost.
Is it possible to use e.g. the LP55231 connecting only one RGB?
Thanks,
Miriam
5684.0904 lp5569_i2c_master_w_multibyte-master_code_MSP_EXP432P401R.zip Hi,
We have no linux driver for LP5569, but we have demo souce code with engine loarding by MSP432, I think it will help you on the coding effort after comparing with LP55231 linux…
Hi Mike,
Both devices do not have dedicated LED engine to support breathing behavior, however, this behavior can be accomplished by keep sending i2c commands to the device adjust the brightness accordingly.
You should also take a look at LP55231,…
Other Parts Discussed in Thread: LP5523 , LP55231 , LP5562 , LP5521 , TLC5971 How can I use the LP55231 or LP5523 with common Anode RGB LEDs- SMLP34RGB2W3 ? I am using this chip successfully with a common-cathode RGB LEDs but common-anode leds are more…
Part Number: CC1310 Other Parts Discussed in Thread: TPS54240 , BQ27441-G1 , BQ24074 , TPS63051 , TPS63020 , TPS61099 , LP55231 , TPL5010 , TEST2
We have a rare issue where our cc1310 does not recover after going into standby mode. However the issue…
Just another crazy thought ... not sure about your cost and size constraints, but the LP55231/LP8501 support 12-bit PWM, and proportional logarithmic dimming, so that you can get good colour matching right down to <1% brightness...
Hi Bartek,
If you need 5 LEDs in parallel and independent control then you can look at a device like the LP5523 or LP55231 depending on package need.
That AC/DC regulator looks like it could be used to drive LEDs with a constant current, but not individual…
