PCA9550DP,118 NXP Semiconductors, PCA9550DP,118 Datasheet - Page 11
![IC LED DRIVER BLINKER 8-TSSOP](/photos/5/43/54394/8-tssop_sot505-2_pkg_sml.jpg)
PCA9550DP,118
Manufacturer Part Number
PCA9550DP,118
Description
IC LED DRIVER BLINKER 8-TSSOP
Manufacturer
NXP Semiconductors
Type
LED Blinkerr
Datasheet
1.PCA9550DP118.pdf
(26 pages)
Specifications of PCA9550DP,118
Package / Case
8-TSSOP
Topology
Open Drain, PWM
Number Of Outputs
2
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
2.3 V to 5.5 V
Maximum Supply Current
500 uA
Maximum Power Dissipation
400 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage (typ)
2.5/3.3/5V
Number Of Segments
2
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Package Type
TSSOP
Pin Count
8
Mounting
Surface Mount
Power Dissipation
400mW
Operating Supply Voltage (min)
2.3V
Operating Supply Voltage (max)
5.5V
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
568-3387-2
935272881118
PCA9550DP-T
935272881118
PCA9550DP-T
NXP Semiconductors
8. Application design-in information
PCA9550_5
Product data sheet
8.1 Minimizing I
When the I/Os are used to control LEDs, they are normally connected to V
resistor as shown in
I/O V
lower than V
Designs needing to minimize current consumption, such as battery power applications,
should consider maintaining the I/O pins greater than or equal to V
Figure 15
than the LED supply voltage by at least 1.2 V. Both of these methods maintain the I/O V
at or above V
Fig 14. Typical application
Fig 15. High value resistor in parallel with
I
is about 1.2 V less than V
the LED
shows a high value resistor in parallel with the LED.
V
DD
LEDn
DD
DD
.
DD
I
and prevents additional supply current consumption when the LED is off.
2
C-BUS/SMBus
MASTER
when the I/Os are used to control LEDs
Figure
5 V
Rev. 05 — 13 October 2008
LED
SDA
SCL
14. Since the LED acts as a diode, when the LED is off the
2-bit I
002aac189
100 k
DD
10 k
. The supply current, I
V
DD
2
C-bus LED driver with programmable blink rates
10 k
10 k
Fig 16. Device supplied by a lower voltage
SDA
SCL
RESET
A0
V
SS
PCA9550
V
DD
DD
, increases as V
LED0
LED1
3.3 V
V
DD
LEDn
Figure 16
DD
002aad271
5 V
when the LED is off.
PCA9550
5 V
002aac190
© NXP B.V. 2008. All rights reserved.
shows V
DD
I
LED
becomes
through a
DD
11 of 26
less
I