Part Number: TLC5940 Other Parts Discussed in Thread: TLC5951 , TLC5957 Hi all - I need to control 4 TI DRV8881P ICs in order to drive 8 bi-directional brushed DC motors. To do this, I need 16 PWM channels with individually controllable duty cycles. I…
Part Number: TLC5940 Hi team,
My customer asked me about TLC5940, how to control. According to datasheet, 1 GS Data Output Cycle consists of 4096 pulses. However customer want to use only 512 pulses after 512 pulse, XLAT =High then next cycle. is it possible…
Part Number: TLC5940 Other Parts Discussed in Thread: TLC6C5912 , , TLC5947 , TLC59283 dear led driver team,
I have new request from customer who wants to design a display panel using discrete white LEDs (20mA each).
Display will be built with matrix LE…
Part Number: TLC5940 I've used the TLC5940's dot correction with low power LEDs with success before. Would it be possible to use the TLC5940 to drive an N-FET with a high power LED >1000ma and reap the benefits of the built in dot correction?…
Part Number: TLC5940 Other Parts Discussed in Thread: TPS54200 Hello all,
I am trying to find the best way to disable the constant current on the TLC5940. I am trying to drive some cheap (Ebay) 12V RGB led strips. The led strips have drop resistors for…
Hi Brigitte,
I know this is an old post now. But I am using this tlc5940 chip, for a fairly simply project to simply control 16 LEDs. Each LED can go up to 80mA, but I most likely wont go above 40mA at this time. I am currently using the chip and it is…
Part Number: TLC5940 The application has 2 LED drivers cascaded. Only the second LED Driver and Output channel 15 exhibits a dimming behavior. VPRG, XLAT, SIN, and SCLK were all monitored using a logic analyzer on the LED driver in question. All signals…
Other Parts Discussed in Thread: TLC5940 I'm using 10 pieces of the TLC5940 in a daisy chain configuration, here is my schematic:
In rare cases it happens that one ore more of the LEDs are wrongly set.
For further investigation I created an firmware…
Part Number: TLC5940 Other Parts Discussed in Thread: TLC5947 Hi, I am looking to maximize brightness and POV in the 16x16 RGB LEDs with shifting registers.
How many TLC5940 do I need to drive? Just three drivers with one shifting register to drive RGB…
OK, finally found my issue: On line 228 of my code, the for-loop was running only 23 times, not 24, which mean that the last byte was not being trasnmitted to the TLC5940, which resulted in LED0 only getting part of it's data. The statement
for (c…