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LED Controllers Selection Guide
I C, Fm
I C, Fm
I C, Fm+
PCA9550
PCA9553
PCA9551
PCA9552
PCA9530
PCA9533
PCA9531
PCA9532
PCA9632
PCA9633
PCA9634
PCA9635
PCA9685
PCA9624
PCA9622
PCA9626
PCA9901
PCA9922
PCA9952
PCA9955
Blinker
Blinker
Blinker
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer
Dimmer &
Blinker
Dimmer &
Blinker
Dimmer &
Blinker
Blinker
Signage
Dimmer &
Blinker
Dimmer &
Blinker
2
4
8
16
2
4
8
16
4
4
8
16
16
8
16
24
1
8
16
16
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.3 V -
5.5 V
2.1 V -
5.5 V
3.3 V -
5.5 V
3.0 V -
5.5 V
3.0 V -
5.5 V
1.9 mA
1.9 mA
1.9 mA
2,1 mA
1.9 mA
1.9 mA
1.9 mA
2,1 mA
0,005
mA
3,8 mA
3,8 mA
3,8 mA
2,2 mA
2,1 mA
1.05 mA
6.0 mA
0,3 mA
3.2 mA
500 mA
500 mA
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Voltage
switch
Constant
Current
(Source)
Constant
Current
Constant
Current
Constant
Current
25 mA
25 mA
25 mA
25 mA
25 mA
25 mA
25 mA
25 mA
-10 mA
25 mA
-10 mA
25 mA
-10 mA
25 mA
-10 mA
25 mA
-10 mA
25 mA
100 mA
100 mA
100 mA
1 to 20
mA
15 to 60
mA
50 mA
50 mA
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
40 V
40 V
40 V
5V
5V
34 V
34 V
Open Drain
Open Drain
Open Drain
Open Drain
Open Drain
Open Drain
Open Drain
Open Drain
Push Pull
(Configurable)
Push Pull
(Configurable)
Push Pull
(Configurable)
Push Pull
(Configurable)
Push Pull
(Configurable)
Open Drain
Open Drain
Open Drain
Open Drain
(Source)
Open Drain
(Sink)
Open Drain
(Sink)
Open Drain
(Sink)
Hi-Z Input
Hi-Z Input
Hi-Z Input
Hi-Z Input
Hi-Z Input
Hi-Z Input
Hi-Z Input
Hi-Z Input
Hi-Z
Push Pull
Logic H
Push Pull
Logic H
Push Pull
Logic H
Push Pull
Logic L
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
2
2
2
2
2
2
2
2
4+1
4+1
8+1
16 + 1
16
8+1
16 + 1
24 + 1
0
0
16 + 1
16 + 1
256
256
256
256
256
256
256
256
256
(64)
256
256
256
4096
256
256
256
4096
-
256
256
-
-
-
-
-
-
-
-
64
(16)
256
256
256
-
256
256
256
-
-
256
256
Y
N
N
N
Y
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
N
N
Y
Y
N
N
N
N
N
N
N
N
Y
Y
Y
Y
N
Y
Y
Y
N
N
Y
Y
N
N
N
N
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
N
N
N
N
N
Y
Y
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
Y
Y
Y
I 2 C, Fm
I 2 C, Fm
I 2 C, Fm
2
2
I 2 C, Fm
I 2 C, Fm
I 2 C, Fm
I 2 C, Fm+
I 2 C, Fm+
I 2 C, Fm+
2
I 2 C, Fm+
I 2 C, Fm+
I 2 C, Fm+
I 2 C, Fm+
1-Wire
SPI, 25
MHz
I 2 C, Fm+
I 2 C, Fm+
2
1
8
8
2
2
8
8
1, 4
1, 4,
126
1, 4,
126
126
126
126
126
126
1
-
8, 4
16, 4
Y
N
Y
Y
Y
N
Y
Y
N
N
N
N
N
N
N
N
N
N
Y
Y
330 KHz
330 KHz
330 KHz
330 KHz
330 KHz
330 KHz
330 KHz
330 KHz
400 KHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
18 KHz
-
8 MHz
8 MHz
-
-
-
-
-
-
-
-
N
N
N
N
N
N
N
N
N
-
Y
Y
-
-
-
-
-
-
-
-
N
N
N
N
Y
N
N
N
N
-
N
N
0.172 Hz -
44 Hz
0.172 Hz -
44 Hz
0.172 Hz -
44 Hz
0.172 Hz -
44 Hz
0.591 Hz -
152 Hz
0.591 Hz -
152 Hz
0.591 Hz -
152 Hz
0.591 Hz -
152 Hz
1.56 KHz
97 KHz
97 KHz
97 KHz
40 Hz -
1000 Hz
97 KHz
97 KHz
97 KHz
N
N
31.5 KHz
31.5 KHz
-
-
-
-
-
-
-
-
190 Hz
(6.25 KHz)
190 Hz
(97 KHz)
190 Hz
(97 KHz)
190 Hz
(97 KHz)
-
190 Hz
(97 KHz)
190 Hz
(97 KHz)
190 Hz
(97 KHz)
N
N
122 Hz
122 Hz
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Production
In Development
In Development
[1]
Typical value, measured with V DD = 5.5 V, no load, V I = V DD or V SS , and F SCL = 0 KHz.
LED Flash Drivers Selection Guide
Maximum LED Drive Current
Touch
Indicator
Output
SSL3250A
SSL3252
Asynchronous
boost conerter
Synchronous
boost converter
2.7 V - 5.5 V
2.5 V - 5.5 V
Low-side drive
High-side drive
1 or 2
1 or 2
500 mA
500 mA
500 mA
400 mA
200 mA
160 mA
20 mA
10 mA
1.2 MHz
2.0 MHz
N
Y
N
Y
I 2 C, Fm or direct
I 2 C, Fm or direct
1
1
820 ms
820 ms
N
Y
In
Production
In
Development
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