© Koninklijke Philips Electronics N.V. 2006
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may
be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under
patent- or other industrial or intellectual property rights.
Date of release: 9 March 2006
Document number: PCA9552_5
Published in The Netherlands
Philips Semiconductors
PCA9552
16-bit I
2
C-bus LED driver with programmable blink rates
23. Contents
1 General description . . . . . . . . . . . . . . . . . . . . . . 1
2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
3 Ordering information. . . . . . . . . . . . . . . . . . . . . 2
4 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5 Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
5.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
6 Functional description . . . . . . . . . . . . . . . . . . . 5
6.1 Device address. . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2 Control Register . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2.1 Control Register definition . . . . . . . . . . . . . . . . 6
6.3 Register descriptions . . . . . . . . . . . . . . . . . . . . 6
6.3.1 INPUT0 - Input register 0 . . . . . . . . . . . . . . . . . 6
6.3.2 INPUT1 - Input register 1 . . . . . . . . . . . . . . . . . 6
6.3.3 PCS0 - Frequency Prescaler 0. . . . . . . . . . . . . 7
6.3.4 PWM0 - Pulse Width Modulation 0. . . . . . . . . . 7
6.3.5 PCS1 - Frequency Prescaler 1. . . . . . . . . . . . . 7
6.3.6 PWM1 - Pulse Width Modulation 1. . . . . . . . . . 7
6.3.7 LS0 to LS3 - LED selector registers . . . . . . . . . 8
6.4 Pins used as GPIOs . . . . . . . . . . . . . . . . . . . . . 9
6.5 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.6 External
RESET . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Characteristics of the I
2
C-bus. . . . . . . . . . . . . 10
7.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1.1 START and STOP conditions . . . . . . . . . . . . . 10
7.2 System configuration . . . . . . . . . . . . . . . . . . . 10
7.3 Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.4 Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 12
8 Application design-in information . . . . . . . . . 13
8.1 Minimizing I
DD
when the I/O is used to control
LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.2 Programming example . . . . . . . . . . . . . . . . . . 14
9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 15
10 Static characteristics. . . . . . . . . . . . . . . . . . . . 15
11 Dynamic characteristics . . . . . . . . . . . . . . . . . 17
12 Test information. . . . . . . . . . . . . . . . . . . . . . . . 19
13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 20
14 Handling information. . . . . . . . . . . . . . . . . . . . 23
15 Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
15.1 Introduction to soldering surface mount
packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
15.2 Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . 23
15.3 Wave soldering . . . . . . . . . . . . . . . . . . . . . . . . 23
15.4 Manual soldering . . . . . . . . . . . . . . . . . . . . . . 24
15.5 Package related soldering information . . . . . . 24
16 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 25
17 Revision history . . . . . . . . . . . . . . . . . . . . . . . 26
18 Data sheet status. . . . . . . . . . . . . . . . . . . . . . . 27
19 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
20 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
21 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
22 Contact information . . . . . . . . . . . . . . . . . . . . 27
