pca9624 NXP Semiconductors, pca9624 Datasheet - Page 10

• Manufacturer Part Number: pca9624
• Description: 8-bit Fm+ I2c-bus 100 Ma 40 V Led Driver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9624_1
Product data sheet
7.3.1 Mode register 1, MODE1
7.3.2 Mode register 2, MODE2
Table 5.
Legend: * default value.
[1]
[2]
Table 6.
Legend: * default value.
[1]
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
It takes 500 s max. for the oscillator to be up and running once SLEEP bit has been set to logic 1. Timings
on LEDn outputs are not guaranteed if PWMx, GRPPWM or GRPFREQ registers are accessed within the
500 s window.
No blinking or dimming is possible when the oscillator is off.
Change of the outputs at the STOP command allows synchronizing outputs of more than one PCA9624.
Applicable to registers from 02h (PWM0) to 08h (LEDOUT) only.
Symbol
AI2
AI1
AI0
SLEEP
SUB1
SUB2
SUB3
ALLCALL
Symbol
-
-
DMBLNK
INVRT
OCH
-
-
-
MODE1 - Mode register 1 (address 00h) bit description
MODE2 - Mode register 2 (address 01h) bit description
Access
read only
read only
read only
R/W
R/W
R/W
R/W
R/W
Access
read only
read only
R/W
R/W
R/W
R/W
R/W
R/W
Rev. 01 — 3 June 2009
Value
0
1*
0*
1
0*
1
0
1*
0*
1
0*
1
0*
1
0
1*
Value
0*
0*
0*
1
0*
0*
1
1*
0*
1*
Description
Register Auto-Increment disabled.
Register Auto-Increment enabled.
Auto-Increment bit 1 = 0.
Auto-Increment bit 1 = 1.
Auto-Increment bit 0 = 0.
Auto-Increment bit 0 = 1.
Normal mode
Low power mode. Oscillator off
PCA9624 does not respond to I
PCA9624 responds to I
PCA9624 does not respond to I
PCA9624 responds to I
PCA9624 does not respond to I
PCA9624 responds to I
PCA9624 does not respond to LED All Call I
address.
PCA9624 responds to LED All Call I
Description
reserved
reserved
group control = dimming.
group control = blinking.
reserved; write must always be a logic 0
outputs change on STOP command
outputs change on ACK
reserved; write must always be a logic 1
reserved; write must always be a logic 0
reserved; write must always be a logic 1
8-bit Fm+ I
[1]
.
2
C-bus 100 mA 40 V LED driver
2
2
2
C-bus subaddress 1.
C-bus subaddress 2.
C-bus subaddress 3.
[2]
2
2
2
C-bus subaddress 1.
C-bus subaddress 2.
C-bus subaddress 3.
.
2
[1]
PCA9624
C-bus address.
© NXP B.V. 2009. All rights reserved.
2
C-bus
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