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PCA9551BS,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
PCA9551_8 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 08 — 31 July 2008 16 of 26
NXP Semiconductors
PCA9551
8-bit I
2
C-bus LED driver with programmable blink rates
Fig 19. Definition of RESET timing
SDA
SCL
002aac193
t
rst
50 %
30 %
50 % 50 %
50 %
t
rec(rst)
t
w(rst)
RESET
LEDn
LED off
START
t
rst
ACK or read cycle
Fig 20. Definition of timing
t
SP
t
BUF
t
HD;STA
PP S
t
LOW
t
r
t
HD;DAT
t
f
t
HIGH
t
SU;DAT
t
SU;STA
Sr
t
HD;STA
t
SU;STO
SDA
SCL
002aaa986
PCA9551_8 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 08 — 31 July 2008 17 of 26
NXP Semiconductors
PCA9551
8-bit I
2
C-bus LED driver with programmable blink rates
12. Test information
Rise and fall times refer to V
IL
and V
IH
.
Fig 21. I
2
C-bus timing diagram
SCL
SDA
t
HD;STA
t
SU;DAT
t
HD;DAT
t
f
t
BUF
t
SU;STA
t
LOW
t
HIGH
t
VD;ACK
002aab175
t
SU;STO
protocol
START
condition
(S)
bit 7
MSB
(A7)
bit 6
(A6)
bit 0
(R/W)
acknowledge
(A)
STOP
condition
(P)
1
/f
SCL
t
r
t
VD;DAT
R
L
= load resistor for LEDn. R
L
for SDA and SCL > 1 kΩ (3 mA or less current).
C
L
= load capacitance includes jig and probe capacitance.
R
T
= termination resistance should be equal to the output impedance Z
o
of the pulse generators.
Fig 22. Test circuitry for switching times
PULSE
GENERATOR
V
O
C
L
50 pF
R
L
500 Ω
002aab880
R
T
V
I
V
DD
DUT
V
DD
open
V
SS
PCA9551_8 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 08 — 31 July 2008 18 of 26
NXP Semiconductors
PCA9551
8-bit I
2
C-bus LED driver with programmable blink rates
13. Package outline
Fig 23. Package outline SOT109-1 (SO16)
X
w M
θ
A
A
1
A
2
b
p
D
H
E
L
p
Q
detail X
E
Z
e
c
L
v M
A
(A )
3
A
8
9
1
16
y
pin 1 index
UNIT
A
max.
A
1
A
2
A
3
b
p
cD
(1)
E
(1) (1)
eH
E
LL
p
QZywv θ
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC JEDEC JEITA
mm
inches
1.75
0.25
0.10
1.45
1.25
0.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
1.27
6.2
5.8
0.7
0.6
0.7
0.3
8
0
o
o
0.25 0.1
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
1.0
0.4
SOT109-1
99-12-27
03-02-19
076E07 MS-012
0.069
0.010
0.004
0.057
0.049
0.01
0.019
0.014
0.0100
0.0075
0.39
0.38
0.16
0.15
0.05
1.05
0.041
0.244
0.228
0.028
0.020
0.028
0.012
0.01
0.25
0.01 0.004
0.039
0.016
0 2.5 5 mm
scale
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26

PCA9551BS,118

Mfr. #:
Buy PCA9551BS,118
Manufacturer:
NXP Semiconductors
Description:
LED Lighting Drivers 8-BIT I2C FM OD LED
Lifecycle:
New from this manufacturer.
Delivery:
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