PCA9552D NXP Semiconductors, PCA9552D Datasheet - Page 13

• Manufacturer Part Number: PCA9552D
• Description: LED Drivers I2C LED BLINKR 16BIT
• Manufacturer: NXP Semiconductors

Specifications of PCA9552D

• Number Of Segments: 16
• Low Level Output Current: 25000 uA (Min)
• Operating Supply Voltage: 2.3 V to 5.5 V
• Maximum Supply Current: 550 uA
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-137
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCA9552D,112

Philips Semiconductors
8. Application design-in information
PCA9552_5
Product data sheet
Fig 14. Typical application
I
2
C-BUS/SMBus
MASTER
LED0 to LED12 are used as LED drivers.
LED13 to LED15 are used as regular GPIOs.
5 V
SDA
SCL
8.1 Minimizing I
When the I/Os are used to control LEDs, they are normally connected to V
resistor as shown in
V
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
input/output V
the LED is off.
I
is about 1.2 V less than V
10 k
(3 )
DD
SDA
SCL
RESET
A2
A1
A0
V
SS
PCA9552
and is specified as I
shows a high value resistor in parallel with the LED.
I
V
at or above V
DD
DD
LED10
LED11
LED12
LED13
LED14
LED15
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
when the I/O is used to control LEDs
Figure
Rev. 05 — 9 March 2006
15. Since the LED acts as a diode, when the LED is off the I/O
DD
DD
16-bit I
. The supply current, I
stb
and prevents additional supply current consumption when
in
Table 13 “Static
2
C-bus LED driver with programmable blink rates
characteristics”.
DD
, increases as V
5 V
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Figure 16
DD
when the LED is off.
PCA9552
I
becomes lower
shows V
DD
GPIOs
through a
002aac188
DD
13 of 28
less