TLC59116-Q1 Datasheet, PDF (14/39 Pages) Texas Instruments – 16-Channel Constant-Current LED Sink Driver

TLC59116-Q1
SLDS223A – MARCH 2016 – REVISED MARCH 2016
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2. The reserved SWRST I²C Bus address 1101 011 with the R/W bit set to 0 (write) is sent by the I²C Bus
master.
3. The TLC59116-Q1 device(s) acknowledge(s) after seeing the SWRST Call address 1101 0110 (D6h) only. If
the R/W bit is set to 1 (read), no acknowledge is returned to the I²C Bus master.
4. Once the SWRST Call address has been sent and acknowledged, the master sends two bytes with two
specific values (SWRST data byte 1 and byte 2):
(a) Byte1 = A5h: the TLC59116-Q1 acknowledges this value only. If byte 1 is not equal to A5h, the
TLC59116-Q1 does not acknowledge it.
(b) Byte 2 = 5Ah: the TLC59116-Q1 acknowledges this value only. If byte 2 is not equal to 5Ah, the
TLC59116-Q1 does not acknowledge it.
If more than two bytes of data are sent, the TLC59116-Q1 does not acknowledge any more.
5. Once the correct two bytes (SWRST data byte 1 and byte 2 only) have been sent and correctly
acknowledged, the master sends a Stop command to end the SWRST Call. The TLC59116-Q1 then resets
to the default value (power-up value) and is ready to be addressed again within the specified bus free time
(t_BUF).
The I²C Bus master may interpret a non-acknowledge from the TLC59116-Q1 (at any time) as a SWRST Call
Abort. The TLC59116-Q1 does not initiate a reset of its registers. This happens only when the format of the Start
Call sequence is not correct.
9.3.6 Individual Brightness Control With Group Dimming/Blinking
A 97-kHz fixed-frequency signal with programmable duty cycle (8 bits, 256 steps) is used to control the individual
brightness for each LED.
On top of this signal, one of the following signals can be superimposed (this signal can be applied to the four
LED outputs):
• A lower 190-Hz fixed-frequency signal with programmable duty cycle (8 bits, 256 steps) provides a global
brightness control.
• A programmable frequency signal from 24-Hz to 1/10.73 s (8 bits, 256 steps) provides a global blinking
control. See Figure 9.
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