PCA9626B NXP Semiconductors, PCA9626B Datasheet - Page 28

• Manufacturer Part Number: PCA9626B
• Description: IC, LED DRIVER, RGBA, 48-LQFP
• Manufacturer: NXP Semiconductors

Specifications of PCA9626B

• No. Of Outputs: 24
• Output Current: 100mA
• Output Voltage: 40V
• Input Voltage: 2.3V To 5.5V
• Dimming Control Type: PWM
• Driver Case Style: LQFP
• Switching Frequency: 1MHz
• Base Number: 9626
• Operating: RoHS Compliant
• Led Driver Application: RGB Or RGBA LED Drivers, LED Status Information, Displays, Backlights
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Details

NXP Semiconductors
9. Bus transactions
PCA9626_2
Product data sheet
Fig 12. Write to a specific register
Fig 13. Write to all registers using the Auto-Increment feature
(cont.)
S A6
START condition
(1) See
A5 A4 A3 A2 A1 A0 0
slave address
SUBADR3 register
Table 4
S A6
START condition
for register definition.
A5 A4 A3 A2 A1 A0 0
acknowledge
acknowledge
slave address
from slave
from slave
R/W
A
A
1
Auto-Increment on
ALLCALLADR register
X
R/W
control register
0
register selection
0
A
acknowledge
from slave
MODE1
0
X
Auto-Increment flag
acknowledge
Rev. 02 — 31 August 2009
0
X D5 D4 D3 D2 D1 D0
from slave
control register
0
condition
0
STOP
A
A
acknowledge
from slave
P
MODE1 register
24-bit Fm+ I
A
acknowledge
from slave
acknowledge
data for register D[5:0]
from slave
2
A
C-bus 100 mA 40 V LED driver
acknowledge
MODE2 register
from slave
(1)
condition
002aad612
PCA9626
STOP
A
© NXP B.V. 2009. All rights reserved.
acknowledge
P
from slave
A
002aad613
28 of 47
(cont.)