TC62D748CFNAG
2011-12-14
18
Notes on design of ICs
1．Decoupling capacitors between power supply and GND
It is recommended to place decoupling capacitors between power supply and GND as close to the IC as
possible.
2．Output current setting resistors
When the output current setting resistors (R
EXT
) are shared among multiple ICs, production design should
be evaluated carefully.
3．Board layout
Ground noise generated by output switching might cause the IC to malfunction if the ground line exhibits
inductance and resistance due to PC board traces and wire leads. Also, the inductance between the IC
output pins and the LED cathode pins might cause large surge voltage, damaging LEDs and the IC
outputs. To avoid this situation, PC board traces and wire leads should be carefully laid out.
4．Consult the latest technical information for mass production.
