TLC59116F_15 Datasheet, PDF (26/38 Pages) Texas Instruments – 16-Channel Fast-Mode Plus I2C Bus LED Driver

TLC59116F
SCLS714C – MARCH 2009 – REVISED SEPTEMBER 2015
www.ti.com
10 Power Supply Recommendations
TLC59116F is designed to operate from a VCC range of 3 V to 5.5 V. The system will also require a power
supply for the LEDs. The supply voltage for the LEDs must be greater than the forward voltage of the LED plus
the V_OL of the channel.
11 Layout
11.1 Layout Guidelines
The I²C signals (SDA / SCL) should be kept away from potential noise sources.
The traces carrying power through the LEDS should be wide enough to the handle necessary current.
All LED current passes through the device and into the ground node. There must be a strong connection
between the device ground and the circuit board ground. For the RHB package, the thermal pad should be
connected to ground to help dissipate heat.
11.2 Layout Examples
VIA to GND
NC
A0
A1
A2
A3
OUT0
OUT1
OUT2
OUT3
GND
OUT4
OUT5
OUT6
OUT7
Vcc
SDA
SCL
RESET
GND
OUT15
OUT14
OUT13
OUT12
GND
OUT11
OUT10
OUT9
OUT8
To µC
To µC
To µC
Figure 22. PW Layout Example
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