Electronic Components Datasheet Search |
|
TLC59208F Datasheet(PDF) 9 Page - Texas Instruments |
|
|
TLC59208F Datasheet(HTML) 9 Page - Texas Instruments |
9 / 37 page INPUT FILTER I C BUS CONTROL 2 GRPFREQ REGISTER POWER-ON RESET CONTROL 25 MH OSCILLATOR z ‘0’ – Permanently OFF ‘1’ – Permanently ON GND VCC RESET SDA SCL 190 Hz 24.3 H k z 97 H k z GRPPWM REGISTER PWM REGISTER BRIGHTNESS CONTROL X TLC59208F LED STATE SELECT REGISTER OUTPUT DRIVER AND ERROR DETECTION A1 A0 A2 OUT0 OUT1 OUT6 OUT7 TLC59208F www.ti.com SCLS715A – MARCH 2009 – REVISED NOVEMBER 2015 9 Detailed Description 9.1 Overview The TLC59208F is an I2C bus controlled 8-bit LED driver optimized for red, green, blue, or amber (RGBA) colormixing applications. Each LED output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at 97 kHz with a duty cycle adjustable from 0% to 99.6% to allow the LED to be set to a specific brightness value. An additional 8-bit resolution (256 steps) group PWM controller has both a fixed frequency of 190 Hz and an adjustable frequency between 24 Hz to once every 10.73 seconds with a duty cycle adjustable from 0% to 99.6% that can either dim or blink all LEDs with the same value. Each LED output can be off, on (no PWM control), set at its individual PWM controller value or at both individual and group PWM controller values. The TLC59208F operates with a supply voltage range of 3 V to 5.5 V and the outputs are 17 V tolerant. LEDs can be directly connected to the TLC59208F device outputs. Software programmable LED group and three sub call I2C bus addresses allow all or defined groups of TLC59208F devices to respond to a common I2C bus address, allowing for example, all the same color LEDs to be turned on or off at the same time or marquee chasing effect, thus minimizing I2C bus commands. The software reset (SWRST) call allows the master to perform a reset of the TLC59208F through the I2C bus, identical to the power-on reset (POR) that initializes the registers to their default state causing the outputs to be set high (LED off). This allows an easy and quick way to reconfigure all device registers to the same condition. 9.2 Functional Block Diagram NOTE: Only one PWM shown for clarity. 9.3 Feature Description 9.3.1 Power-On Reset When power is applied to VCC, an internal power-on reset holds the TLC59208F in a reset condition until VCC has reached VPOR. At this point, the reset condition is released and the TLC59208F registers and I 2C bus state machine are initialized to their default states causing all the channels to be deselected. Thereafter, VCC must be lowered below 0.2 V to reset the device. Copyright © 2009–2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TLC59208F |
Similar Part No. - TLC59208F |
|
Similar Description - TLC59208F |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |