TLC5971_15 Datasheet, PDF (32/45 Pages) Texas Instruments – 12-Channel, 16-Bit, Enhanced Spectrum, PWM, RGB, LED Driver

TLC5971
SBVS146D – AUGUST 2010 – REVISED DECEMBER 2015
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10 Power Supply Recommendations
The V_CC power supply voltage should be decoupled by placing a 0.1-uF ceramic capacitor close to VCC pin and
GND plane. Depending on panel size, several electrolytic capacitors must be placed on board equally distributed
to get a well regulated LED supply voltage (V_LED). V_LED voltage ripple should be less than 5% of its nominal
value.
11 Layout
11.1 Layout Guidelines
1. Place the decoupling capacitor near the VCC pin and GND plane.
2. Route the GND pattern as widely as possible for large GND currents.
3. Connecting wire between the chained ICs should be as short as possible to reduce wire inductance.
11.2 Layout Example
Figure 40. Layout Example
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