Other Parts Discussed in Thread: TLC5946 Hello, I'm having a problem with ground noise in a circuit I've made using a TLC5946. I have connected a the TLC5946 to a microcontroller that is sending it data. The LEDs connected to the TLC have a power…
Part Number: TLC5940 Other Parts Discussed in Thread: TLC5945 , , TLC5941 , , TLC5946 , TLC5948A , TLC59291 , TLC5949 , TLC5951 , TLC5929 Team,
I have a customer looking for an alternative to the AMS AS1112 ( http://ams.com/eng/Products/Power-Management/LED-Drivers…
Other Parts Discussed in Thread: TLC5925 , TLC5946 , TLC5940 , TLC59108 I have questions about TLC5925.
Is this IC possible with independent dimming of each channel?
Please tell us the dimming method if this IC is possible with independent dimming of each…
Other Parts Discussed in Thread: TLC59108 , TLC5925 , TLC59116 , TLC5946 , TLC5971 , TLC5923 , TLC5922 Please tell us the LED driver that meet the following conditions.
Independent dimming
VLED=over 12V
LED current=30mA per channel
Dimming RGB LED, not back…
Hi, Betty,
1. Please be noted system level ESD is not the same as our chip ESD. Customer can use resistors on the output.
2. The SPI signal just turn on/off the channels and when the channel is ON, the current is constant and set by Riref.
3. If you…
Other Parts Discussed in Thread: TLC5951 , TLC5947 , TLC5946 I have been evaluating the TLC5946 and TLC5947 and have successfully driven an rgb led with both. I am now considering the TLC5951 as it appears to be cheaper and offers more functionality, and…
Hello Rick,
The IC is intended for applications which show static pictures for a longer period of time. So whenever the picture is changing, BLANK can be set high to turn the outputs off and reset the GS counter and during BLANK=high, XLAT can be used…
Other Parts Discussed in Thread: TLC5946 Hello,
I wish to drive between 5-7 RGB LEDs in a portable application (5 - 7 x RGB LEDs = 15 - 21 channels). Only one will be active at a time - perhaps 10-12mA while active (sometimes the single LED will be flashing…
The TLC5940, TLC5941, TLC5942, TLC5943, TLC5944, TLC5946, TLC59461 ICs do not have a default dot correction value at startup. Each startup condition can generate a random dot correction (DC) value. This DC value limits the maximum current per the equations…
Other Parts Discussed in Thread: TLC5946 , TLC5941 , TLC5940
I am using cascaded TLC5941s.
The data sheet is not very clear about when you clock the greyscale data into it. Can you clock in the new data during the pwm cycle, ie while GSCLK is running? Or…