LED Drivers/LCD Bias

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LED Drivers/LCD Bias

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TLC59xx
Related Posts

  • Forum Post: Re: TLC5927 / power dissipation

    Brigitte
    Hello Carl, The biggest portion will be the power dissipation caused by the LED currents. The TLC5927 has to dissipate the power coming from the LED power supply through the diodes to GND which is not taken from the LEDs, therefore for all 16 outputs the maximum power dissipated per output will be...
    on Jul 26, 2010

  • Forum Post: Re: TLC5925 / 59025

    Brigitte
    Hello Jan, 1. TLC59025 also uses the industry standard for Iout to external resistor ratio. 2. We never tested the parts with other loads than LEDs. In general I would say that the impedance limits the current, even if the IC wants to draw more current. I do not expect the drivers to oscillate...
    on Aug 12, 2010

  • Forum Post: Re: LED signage

    Brigitte
    Hello Abhishek, A good place to start your search is this web page: http://www.ti.com/led . One of the TLC59xx parts will most probable be the right part for you application. Best regards, Brigitte
    on Nov 9, 2010

  • Forum Post: MSP430G2231 Interfacing with TLC 5940 for 7 x 5 LED Matrix

    Sascha Walther
    Hello, I'm quite new to microcontrollers and have started working with the Launchpad and am therefore restricted to the Value Line of the MSP430 MCU's. I want to connect 2 LED Panels with 7 x 5 Leds each which are internally connected through a matrix. My question is if there is existing...
    on Jan 23, 2011

  • Forum Post: Re: Looking for some advice for 8x8 RGB Led matrix driver

    Brigitte
    Hello Amid, The only possibilities I know of to avoid timing is a good layout and adding a buffer every few parts in all lines which are not buffered in the TLC59xx. It is for sure the case that you will see after some ICs a time and slope difference between the signals that are buffered in the ICs...
    on Jun 3, 2011

  • Forum Post: Re: TLC + MSP430

    Brigitte
    Hello Raul, Do you mean generating the driver software for one of the TLC59xx parts? I am not a programming expert, but I am told that the interfaces of all parts are simple and you just have to make sure that the timings are correct. Normally GPIOs or even existing interfaces can be used (dependent...
    on Aug 4, 2011

  • Forum Post: TLC5920 possible timing or current leakage problem

    Josh Triska
    Hello, I have a design for a client which uses four cascaded TLC5920 chips driving one 16x8 LED matrix each. My issue is that on rows which have, say, one LED lit, the other LEDs in the same row (on the same COM pin) glow faintly. Order of operations to write to the four chips: Pull blank high...
    on Apr 14, 2011

  • Forum Post: Re: MBI5028 analog

    Oleksiy Pazyuk
    Hello . Do you know if TLC59281 TLC59282 have temperature shutdown. I was not able to find this information in the datasheet? For TLC59025/TLC5926 / TLC5927 there is overtemperature shutdown at 175C Does it mean that for TLC59281/ TLC59282 there is no any temperature protection? best regards...
    on Oct 27, 2011

  • Forum Post: TLC59116 / TLC59108 SDA held low issue

    Bernard McDavitt
    Hi, I am currently work on a project to control multiple TLC59116 / TLC59108 an have come across a problem where noise induced on the lines is occasionally causing one or possibly more of the devices to hold the SDA line low indefinitely. The devices are connected in a 'star' configuration...
    on Nov 24, 2011

  • Forum Post: Re: TLC5952/51/47 Power Efficiency

    Brigitte
    Hello Himansu, These parts are not power converters. The input power has to come from another power IC. The TLC5951, TLC5952 or TLC5947 just connect external LEDs to GND and regulate the current through the LEDs. The OUTx pins are current sinks that regulate the current. In the datasheets you can...
    on Dec 19, 2011

  • Forum Post: TLC5916 output state retention issue.

    Olivier Nsabimana
    Hi, I am using two cascaded TLC5916 chips to drive 12 LEDs, mixed green and red. this is a very straight forward task, which doesn't require brightness control or anything like, just turning on LEDs and OFF as required. My implementation is as follow. I use a 16 bit field variable ( uint16_t...
    on Feb 12, 2013

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