
NXP Semiconductors
PCA9632
4-bit Fm+ I 2 C-bus low power LED driver
22. Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
7.1.1
7.1.2
7.1.3
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 2
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ordering information . . . . . . . . . . . . . . . . . . . . . 3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pinning information . . . . . . . . . . . . . . . . . . . . . . 5
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
Functional description . . . . . . . . . . . . . . . . . . . 6
Device addresses . . . . . . . . . . . . . . . . . . . . . . . 6
Regular I 2 C-bus slave address. . . . . . . . . . . . . 6
LED All Call I 2 C-bus address . . . . . . . . . . . . . . 7
LED Sub Call I 2 C-bus addresses . . . . . . . . . . . 7
17.1
17.2
17.3
17.4
18
19
20
20.1
20.2
20.3
20.4
21
22
Introduction to soldering. . . . . . . . . . . . . . . . .
Wave and reflow soldering. . . . . . . . . . . . . . .
Wave soldering . . . . . . . . . . . . . . . . . . . . . . .
Reflow soldering . . . . . . . . . . . . . . . . . . . . . .
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . .
Revision history . . . . . . . . . . . . . . . . . . . . . . .
Legal information . . . . . . . . . . . . . . . . . . . . . .
Data sheet status . . . . . . . . . . . . . . . . . . . . . .
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . .
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact information . . . . . . . . . . . . . . . . . . . .
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
33
33
34
35
36
37
37
37
37
38
38
39
7.1.4
7.2
7.3
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.8
7.4
7.5
7.6
7.7
8
8.1
8.1.1
8.2
8.3
9
10
11
12
13
14
15
16
17
Software reset I 2 C-bus address . . . . . . . . . . . . 8
Control register . . . . . . . . . . . . . . . . . . . . . . . . . 8
Register definitions . . . . . . . . . . . . . . . . . . . . . 10
Mode register 1, MODE1 . . . . . . . . . . . . . . . . 11
Mode register 2, MODE2 . . . . . . . . . . . . . . . . 11
PWM registers 0 to 3, PWMx — Individual
brightness control registers . . . . . . . . . . . . . . 12
Group duty cycle control, GRPPWM . . . . . . . 13
Group frequency, GRPFREQ . . . . . . . . . . . . . 14
LED driver output state, LEDOUT . . . . . . . . . 14
I 2 C-bus subaddress 1 to 3, SUBADRx . . . . . . 14
LED All Call I 2 C-bus address, ALLCALLADR. 15
Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 15
Software reset. . . . . . . . . . . . . . . . . . . . . . . . . 15
Using the PCA9632 with and without external
drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Individual brightness control with group
dimming/blinking . . . . . . . . . . . . . . . . . . . . . . . 17
Characteristics of the I 2 C-bus . . . . . . . . . . . . 19
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
START and STOP conditions . . . . . . . . . . . . . 19
System configuration . . . . . . . . . . . . . . . . . . . 19
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 20
Bus transactions . . . . . . . . . . . . . . . . . . . . . . . 21
Application design-in information . . . . . . . . . 24
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 25
Static characteristics. . . . . . . . . . . . . . . . . . . . 26
Dynamic characteristics . . . . . . . . . . . . . . . . . 27
Test information . . . . . . . . . . . . . . . . . . . . . . . . 28
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 29
Handling information. . . . . . . . . . . . . . . . . . . . 33
Soldering of SMD packages . . . . . . . . . . . . . . 33
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
? NXP B.V. 2011.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 27 July 2011
Document identifier: PCA9632