Other Parts Discussed in Thread: TLC5940 , TLC5922 I am being asked a question that whether TLC5940 can output over 120mA current by customer now. For example,in the case of driving 240mA by 2ch.
I checked some datasheets and applicationnotes, I found an…
Other Parts Discussed in Thread: TLC5940 Hello,
I was looking at TLC5940 for 4 strings of LEDs with 6 LEDs in each string. If the forward voltage is 3.3V, total would be 19.8V for each string which is greater than the LED power supply voltage which is…
Other Parts Discussed in Thread: TLC5940 Hello All,
I apologize if someone has previously addressed this issue, but so far I have not found it.
I have a pair of TLC5940's driven by an AVR32 UC3B1128 controller. I'm using two PWM outputs to drive the…
Other Parts Discussed in Thread: TLC5940 Hi, I was wondering how long the TLC5940 might last if it's running at it's maximum current rating but not dissipating very much heat. As an example, 6 sections of RGB LED strips draw 120mA per channel. …
I have 12 5940's driving 64 rgb led's all ran by an Arduino Uno.. The colors are ordered blue, green and red. When I pulse the blue and green it works fine. When I pulse the red, I get flickering from the other colors on the last six chips, and on the…
Other Parts Discussed in Thread: TLC5940 Dear,
I combined the TLC5940 with my MCU (nuvoton NUC123) trying to control servo motor; however, there are some problems in the duty of PWM signal. I can’t adjust the right duty even the trend seemed correct. I…
Other Parts Discussed in Thread: TLC5940 how much should the V_led exceed the forward voltage of the led?
Does the TLC need some control reserve?
I tried to figure it out with the datasheet but i could not found it.
with best regards,
René
Hi Kazuya, thank you for the reply. I have looked into this further. I'm using a PIC microcontroller running at 10 MIPS, typical of the inexpensive microcontrollers the TLC5940/1 is designed to operate with.
The GSCLK for the TLC5940 comes from an…
Other Parts Discussed in Thread: TLC5940 I'm starting to work with the TLC5940 for a little project I have in mind.
I'm gathering all the parts I need to start playing with them on a breadboard, however, I'm not entirely sure what I need for cascading…
Other Parts Discussed in Thread: TLC5940 , TLC5948A Dear TI team and others,
My question is regarding optimizing the current draw of the TLC5940, used as an LED driver in our application.
Our setup: In our product design, we are using the TLC5940 (QFN footprint…