PCA9551D,118 NXP Semiconductors, PCA9551D,118 Datasheet - Page 10
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PCA9551D,118
Manufacturer Part Number
PCA9551D,118
Description
IC LED DRIVER BLINKER 16-SOIC
Manufacturer
NXP Semiconductors
Type
LED Blinkerr
Datasheet
1.PCA9551BS118.pdf
(26 pages)
Specifications of PCA9551D,118
Package / Case
16-SOIC (3.9mm Width)
Topology
Open Drain, PWM
Number Of Outputs
8
Internal Driver
Yes
Type - Primary
LED Blinker
Frequency
400kHz
Voltage - Supply
2.3 V ~ 5.5 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
25mA
Internal Switch(s)
Yes
Low Level Output Current
6.5 mA
Operating Supply Voltage
6 V
Maximum Power Dissipation
400 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
OM6285 - EVAL BOARD I2C-2002-1A568-4002 - DEMO BOARD I2C
Voltage - Output
-
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
935271695118
PCA9551D-T
PCA9551D-T
PCA9551D-T
PCA9551D-T
NXP Semiconductors
PCA9551_8
Product data sheet
Fig 11. Write to register
Fig 12. Read from register
Fig 13. Read Input Port register
data into
SDA
read from
(cont.)
SDA
write to register
data out from port
port
Remark: This figure assumes the command byte has previously been programmed with 00h.
SCL
SDA
port
S
START condition
S
START condition
S
(repeated)
START condition
1
1
1
S
START condition
7.4 Bus transactions
1
1
2
1
slave address
1
1
slave address
0
slave address
3
0
1
0
slave address
0 A2 A1 A0 0
4
0 A2 A1 A0
0
0 A2 A1 A0
5
0 A2 A1 A0 1
acknowledge
6
from slave
acknowledge
7
R/W
from slave
R/W
R/W
8
0
t
h(D)
1
R/W
A
9
A
acknowledge
from slave
A
0
A
0
acknowledge
from slave
0
DATA 2
0
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
command byte
Rev. 08 — 31 July 2008
0
data from register
command byte
DATA (first byte)
0
Auto-Increment
register address
if AI = 1
AI
AI
data from port
0 B2 B1
DATA 1
8-bit I
DATA 3
0 B2 B1 B0
acknowledge
from slave
2
C-bus LED driver with programmable blink rates
B0
t
A
su(D)
A
acknowledge
from slave
A
acknowledge
from master
(cont.)
A
acknowledge
from master
data to register
DATA 4
DATA 1
data from port
data from register
DATA (last byte)
DATA 4
t
no acknowledge
v(Q)
from master
A
acknowledge
from slave
PCA9551
NA
© NXP B.V. 2008. All rights reserved.
DATA 1 VALID
no acknowledge
from master
NA
002aac509
002aac507
P
STOP
condition
002aac508
P
STOP
condition
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