Other Parts Discussed in Thread: TLC5925 , TLC5926 Hi,
I have an evolution of the order of LED, but not the drivers. Those were configured to deliver ( with 2 drivers) 15mA and 50mA. Now , I have to use a transistor, and the current consumption will…
What do I do with an unused current output to minimize current draw. The unused output will never be turned on with software. I can do any of the following without any trouble.
1) tie the output to ground
2) let the output float (with CMOS parts…
Thank you for your answer!
It's possible to achieve independent dimming of each channel.
You're correct and it's controlled by seting ON/OFF time. For example, turning ON for 100 us and OFF for 900 us achieves 10% duty cycle.
Please tell us the…
Hi Amanda,
The TLC5925 has 16 channel control through serial communication and operates down to 3V. The only downside is that it does not have the common line drive.
Harry Kennedy
h-kennedy@ti.com
Other Parts Discussed in Thread: TLC5925 , TLC5926 Hi,
I'm currently working on a product with 32 one color & 40 bi color leds ( these ). I'm using an arm32 microcontroller, which uses 3.3v. As 3.3v are too little for running this many leds (the brightness…
Hello Victor,
As far as I understand, you have a serial output that gives 0101 if you want to have 5 LEDs lite, right?
If you have a look on TLC5925, you can see that this part has a serial interface, therefore you would not need a serial to parallel…
Hello Martin,
Let me try to understand your problem to find a suitable solution:
You have 192 LEDs you want to either turn on or off in a refresh rate of 60Hz. These 192 LEDs (or channels with more than one LED) are grouped in 24 LEDs (or channels…
Pietro,
Yes, multiple outputs can be combined to obtain higher current. This is a benefit of the constant current output. It is the same for all of the TLC59xxx constant current devices (TLC59116, TLC5916, TLC5917, TLC5925, TLC59025, TLC5926, TLC5927…
Hello Fhoude.
This is my RH850 board user manual.
r12ut0004ed0110-rh850f1km-s1.pdf
Connection between two boards is given below.
RH850 board TPS92682-069(EVM board --J10 connector is used)
Clock(P0_2) Clock (PIN no 12)
MOSI(P0_1) MOSI (PIN…
Hi,
I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria.
As an example if you use a UC3842 it is a simple…
