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| TLC59291_15 Datasheet, PDF (38/45 Pages) Texas Instruments – TLC59291 8/16-Channel, Constant Current LED Driver with 7-bit Brightness Control Low Quiescent Current and Full Self Diagnosis for LED Lamp | |||
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TLC59291
SLVSA96 â SEPTEMBER 2015
11 Layout
www.ti.com
11.1 Layout Guidelines
⢠Place the decoupling capacitor near the VCC pin and GND plane
⢠Place the current programming resistor RIREF close to the IREF pin an the IREFGND pin.
⢠Route the GND pattern as widely as possible for large GND currents.
⢠The routing wire between the LED cathode side and the device OUTXn pin must be as short and straight as
possible to reduce wire inductance.
⢠When several ICs are chained, symmetric placements are recommended.
11.2 Layout Example
Figure 39. Layout
38
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