TLC59116F_15 Datasheet, PDF (11/38 Pages) Texas Instruments – 16-Channel Fast-Mode Plus I2C Bus LED Driver

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Feature Description (continued)
1 2 3 4 5 6 7 8 9 10 11 12
TLC59116F
SCLS714C – MARCH 2009 – REVISED SEPTEMBER 2015
508 510 512 508 510 512
507 508 511 507 508 511 1 2 3 4 5 6 7 8 9 10 11
M X 256 X 2 X 40 ns
with M = (0 to 255)
(GRPPWM Register)
N X 40 ns with
N = (0 to 255)
(PWMx Register)
256 X 40 ns = 10.24 µs
(97.6 kHz)
Group Dimming Signal
12 3 4 5 6 7 8
256 X 2 X 256 X 40 ns = 5.24 ms (190.7 Hz)
12 3 4 5 6 7 8
Resulting Brightness + Group Dimming Signal
A. Minimum pulse width for LEDn brightness control is 40 ns.
B. Minimum pulse width for group dimming is 20.48 µs.
C. When M = 1 (GRPPWM register value), the resulting LEDn brightness control and group dimming signal will have two
pulses of the LED brightness control signal (pulse width = N × 40 ns, with N defined in the PWMx register).
D. The resulting brightness plus group dimming signal shown above demonstrate a resulting control signal with M = 4 (8
pulses).
Figure 7. Brightness and Group Dimming Signals
8.4 Device Functional Modes
8.4.1 Active
Active mode occurs when one or more of the output channels is enabled.
8.4.2 Standby
Standby mode occurs when all output channels are disabled. Standby mode may be entered either through I²C
command or by pulling the RESET pin low.
8.5 Programming
8.5.1 Device Address
Following a START condition, the bus master outputs the address of the slave it is accessing.
8.5.2 Regular I²C Bus Slave Address
The I²C bus slave address of the TLC59116F is shown in Figure 8. To conserve power, no internal pullup
resistors are incorporated on the hardware-selectable address pins, and they must be pulled high or low.
For buffer management purpose, a set of sector information data should be stored in a certain buffer.
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