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| TLC59711 Datasheet, PDF (26/36 Pages) Texas Instruments – 12-Channel, 16-Bit, Enhanced Spectrum PWM, RGB, LED Driver | |||
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TLC59711
SBVS181 â OCTOBER 2011
www.ti.com
HOW TO CONTROL THE TLC59711
To set each function mode, BC color, GS output, 6-bit write command, 5-bit FC data, 21-bit BC data for each
color group, and 192-bit GS data for OUTXn, a total number of 224 bits must be written into the device.
Figure 31 shows the 224-bit data packet configuration.
When N units of the TLC59711 are cascaded (as shown in Figure 32), N Ã 224 bits must be written from the
controller into the first device to control all devices. The number of cascaded devices is not limited as long as the
proper voltage is supplied to the device at VCC. The packets for all devices must be written again whenever the
data in one packet is changed.
MSB
Write
Command
(6 bits, 25h)
Function
Control
(5 bits)
BC for
BLUE
(7 bits)
BC for
GREEN
(7 bits)
BC for
RED
(7 Bits)
GS for
OUTB3
(16 Bits)
GS for
OUTG3
(16 Bits)
GS for
OUTR3
(16 Bits)
16 Bits
´6
GS for
OUTB0
(16 Bits)
GS for
OUTG0
(16 Bits)
LSB
GS for
OUTR0
(16 Bits)
Figure 31. 224-Bit Data Packet Configuration
VLED
3.3 V
Controller
DATA
CLK
GND
¼
VCC
SDTI
SDTO
SCKI
SCKO
IREF
VREF
1st
TLC59711
GND
¼
VCC
SDTI
SDTO
SCKI
SCKO
IREF
VREF
2nd
TLC59711
GND
¼
VCC
SDTI
SDTO
SCKI
SCKO
IREF
VREF
N-1st
TLC59711
GND
¼
VCC
SDTI
SDTO
SCKI
SCKO
IREF
VREF
Nth
TLC59711
GND
Figure 32. Cascading Connection of N TLC59711 Units
26
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Copyright © 2011, Texas Instruments Incorporated
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