PCA9624PW NXP Semiconductors, PCA9624PW Datasheet - Page 19
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PCA9624PW
Manufacturer Part Number
PCA9624PW
Description
IC, LED DRIVER, RGBA, 24-TSSOP
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9624BS118.pdf
(37 pages)
Specifications of PCA9624PW
No. Of Outputs
8
Output Current
100mA
Output Voltage
40V
Input Voltage
2.3V To 5.5V
Dimming Control Type
PWM
Driver Case Style
TSSOP
Switching Frequency
1MHz
Base Number
9624
Operating
RoHS Compliant
Led Driver Application
RGB Or RGBA LED Drivers, LED Status Information, Displays, Backlights
Rohs Compliant
Yes
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NXP Semiconductors
PCA9624_2
Product data sheet
Fig 15. Read all registers using the Auto-Increment feature
Fig 16. LED All Call I
(cont.)
(cont.)
S A6
START condition
(1) In this example, several PCA9624s are used and the same sequence (A) (above) is sent to each of them.
(2) ALLCALL bit in MODE1 register is equal to 1 for this example.
(3) OCH bit in MODE2 register is equal to 1 for this example.
data from MODE2 register
A5 A4 A3 A2 A1 A0 0
data from last read byte
sequence (A)
sequence (B)
slave address
not acknowledge
acknowledge
from master
from master
S A6
START condition
S
START condition
acknowledge
2
from slave
1
C-bus address programming and LED All Call sequence example
LED All Call I
R/W
A5 A4 A3 A2 A1 A0 0
0
slave address
A
A
A
1
P
STOP
condition
1
Auto-Increment on
data from PWM0
0
Auto-Increment
on all registers
2
C address
0
1
(1)
control register
0
0
acknowledge
acknowledge
acknowledge
from slave
0
from master
1
4 devices
from the
R/W
R/W
0
0
Rev. 02 — 26 August 2009
MODE1
register
selection
0
A
A
A
0
X
X
Auto-Increment on
0
X
X
ReSTART
ALLCALLADR register
A
control register
control register
acknowledge
from slave
condition
X
X
Sr
register selection
1
0
ALLCALLADR
data from
register selection
A6
1
1
LEDOUT
A5 A4 A3 A2 A1 A0 1
0
0
acknowledge
slave address
from master
1
0
8-bit Fm+ I
1
0
A
A
A
acknowledge
from slave
the 8 LEDs are on at the acknowledge
acknowledge
from the
4 devices
LEDOUT register (LED fully ON)
new LED All Call I
acknowledge
1
0
from slave
MODE1 register
0
1
2
R/W
data from
C-bus 100 mA 40 V LED driver
1
0
A
0
1
data from MODE1 register
acknowledge
from master
1
0
2
C address
0
1
acknowledge
acknowledge
from slave
1
0
PCA9624
A
4 devices
from the
© NXP B.V. 2009. All rights reserved.
(cont.)
acknowledge
(2)
X
1
condition
condition
from master
002aad598
STOP
STOP
A
A
(3)
P
P
002aac151
A
19 of 37
(cont.)