CAT3626 Datasheet, PDF (13/16 Pages) Catalyst Semiconductor – 6-Channel LED Driver with I2C Interface

CAT3626
Typical Application
The CAT3626 is ideal for driving RGB (red green blue)
LEDs with common anode configuration. The individual
LED currents associated with the red, green and blue LEDs
are programmable independently through the I²C interface,
allowing to generate an accurate color mixing. Dimming
while maintaining the same color can be done by
reprogramming the RegEn register on and off with the
appropriate duty cycle (PWM mode).
1 mF
1 mF
V_IN
3 V to ^CIN
5.5 V
1 mF
ENABLE
I²C Interface
C1− C1+ C2− C2+
VIN
VOUT
CAT3626
EN
SDA
SCL
GND
LEDA1
LEDA2
LEDB1
LEDB2
LEDC1
LEDC2
RGB LED
Red Green Blue
C_OUT
1 mF
Figure 29. RGB LED
http://onsemi.com
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