PCA9531PW,112 NXP Semiconductors, PCA9531PW,112 Datasheet - Page 5

• Manufacturer Part Number: PCA9531PW,112
• Description: IC LED DRIVER RGB 16-TSSOP
• Manufacturer: NXP Semiconductors
• Type: RGB LED Driverr

Specifications of PCA9531PW,112

• Topology: Open Drain, PWM
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: Backlight, LED Blinker
• Type - Secondary: RGB
• Frequency: 400kHz
• Voltage - Supply: 2.3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 568-4003 - DEMO BOARD LED DIMMER568-3615 - DEMO BOARD I2C
• Voltage - Output: -
• Efficiency: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-3370-5; 935274729112; PCA9531PW

NXP Semiconductors
6. Functional description
PCA9531_6
Product data sheet
6.1 Device address
Table 2.
[1]
Refer to
Following a START condition, the bus master must output the address of the slave it is
accessing. The address of the PCA9531 is shown in
internal pull-up resistors are incorporated on the hardware selectable address pins and
they must be pulled HIGH or LOW.
The last bit of the address byte defines the operation to be performed. When set to logic 1
a read is selected, while a logic 0 selects a write operation.
Symbol
V
LED4
LED5
LED6
LED7
RESET
SCL
SDA
V
Fig 5.
SS
DD
HVQFN16 package die supply ground is connected to both V
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
PCB in the thermal pad region.
Figure 1 “Block diagram of
PCA9531 slave address
Pin
SO16,
TSSOP16
8
9
10
11
12
13
14
15
16
Pin description
Rev. 06 — 19 February 2009
HVQFN16
6
7
8
9
10
11
12
13
14
[1]
…continued
1
1
fixed
Description
supply ground
LED driver 4
LED driver 5
LED driver 6
LED driver 7
reset input (active LOW)
serial clock line
serial data line
supply voltage
PCA9531”.
slave address
0
0
A2
selectable
hardware
A1
SS
Figure
A0 R/W
002aac505
pin and exposed center pad. V
5. To conserve power, no
8-bit I
2
C-bus LED dimmer
PCA9531
© NXP B.V. 2009. All rights reserved.
SS
pin must
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