PCA9553 datasheet(4/26 Pages) NXP

Part #	PCA9553

Description	4-bit I2C-bus LED driver with programmable blink rates

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Manufacturer	NXP [NXP Semiconductors]

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PCA9553_6

Product data sheet

Rev. 06 — 29 December 2008

4 of 26

NXP Semiconductors

PCA9553

4-bit I2C-bus LED driver with programmable blink rates

6.

Pinning information

6.1 Pinning

6.2 Pin description

[1]

HVSON8 package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must

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.

Fig 2.

Pin conﬁguration for SO8

Fig 3.

Pin conﬁguration for TSSOP8

Fig 4.

Pin conﬁguration for HVSON8

PCA9553D/01

PCA9553D/02

LED0

VDD

LED1

SDA

LED2

SCL

VSS

LED3

002aad678

1

2

3

4

6

5

8

7

PCA9553DP/01

PCA9553DP/02

LED0

VDD

LED1

SDA

LED2

SCL

VSS

LED3

002aad679

1

2

3

4

6

5

8

7

002aad680

LED3

SCL

LED2

SDA

LED1

VDD

LED0

Transparent top view

5

4

6

3

7

2

8

1

terminal 1

index area

PCA9553TK

PCA9553TK/02

VSS

Table 3.

Pin description

Symbol

Description

LED0

1

LED driver 0

LED1

2

LED driver 1

LED2

3

LED driver 2

VSS

4[1]

supply ground

LED3

5

LED driver 3

SCL

6

serial clock line

SDA

7

serial data line

VDD

8

supply voltage

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