CAT4109 Datasheet, PDF (2/12 Pages) ON Semiconductor – 3-Channel Constant-Current RGB LED Driver with Individual PWM Dimming

CAT4109
VIN
5 V to 25 V
VDD
3 V to 5.5 V
CONTROLLER
C1
1 mF
RED GREEN BLUE
VDD LED1 LED2 LED3
OE
PWM1
PWM2
PWM3
CAT4109
RSET1
RSET2
RSET3 _GND
R1 R2 R3
PGND
Figure 1. Typical Application Circuit
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Units
VDD Voltage
6
V
Input Voltage Range (OE, PWM1, PWM2, PWM3)
−0.3 V to 6 V
V
LED1, LED2, LED3 Voltage
25
V
DC Output Current on LED1 to LED3
200
mA
Storage Temperature Range
−55 to +160
°C
Junction Temperature Range
−40 to +150
°C
Lead Soldering Temperature (10 sec.)
300
°C
ESD Rating on All Pins:
Human Body Model
Machine Model
V
2000
200
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameter
Range
VDD
3.0 to 5.5
Voltage applied to LED1 to LED3, outputs off
up to 25
Voltage applied to LED1 to LED3, outputs on
up to 6 (Note 2)
Output Current on LED1 to LED3
2 to 175
Ambient Temperature Range
−40 to +85
2. Keeping LEDx pin voltage below 6 V in operation is recommended to minimize thermal dissipation in the package.
Units
V
V
V
mA
°C
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