pca9626 NXP Semiconductors, pca9626 Datasheet

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pca9626

Manufacturer Part Number
pca9626
Description
24-bit Fm+ I2c-bus 100 Ma 40 V Led Driver
Manufacturer
NXP Semiconductors
Datasheet

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1. General description
The PCA9626 is an I
dimming and blinking 100 mA Red/Green/Blue/Amber (RGBA) LEDs. Each LED output
has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that
operates at 97 kHz with a duty cycle that is adjustable from 0 % to 99.6 % to allow the
LED to be set to a specific brightness value. An additional 8-bit resolution (256 steps)
group PWM controller has both a fixed frequency of 190 Hz and an adjustable frequency
between 24 Hz to once every 10.73 seconds with a duty cycle that is adjustable from 0 %
to 99.6 % that is used to either dim or blink all LEDs with the same value.
Each LED output can be off, on (no PWM control), set at its individual PWM controller
value or at both individual and group PWM controller values. The PCA9626 operates with
a supply voltage range of 2.3 V to 5.5 V and the 100 mA open-drain outputs allow
voltages up to 40 V.
The PCA9626 is one of the first LED controller devices in a new Fast-mode Plus (Fm+)
family. Fm+ devices offer higher frequency (up to 1 MHz) and more densely populated bus
operation (up to 4000 pF).
The active LOW Output Enable input pin (OE) blinks all the LED outputs and can be used
to externally PWM the outputs, which is useful when multiple devices need to be dimmed
or blinked together without using software control.
Software programmable LED Group and three Sub Call I
defined groups of PCA9626 devices to respond to a common I
for example, all red LEDs to be turned on or off at the same time or marquee chasing
effect, thus minimizing I
126 devices on the same bus.
The Software Reset (SWRST) Call allows the master to perform a reset of the PCA9626
through the I
their default state causing the output NAND FETs to be OFF (LED off). This allows an
easy and quick way to reconfigure all device registers to the same condition.
In addition to these features found in PCA9633, PCA9634, PCA9635, PCA9622 and
PCA9624, a new feature to control LED output pattern is incorporated in the PCA9626. A
new control byte called ‘Chase Byte’ allows enabling or disabling of selective LED outputs
depending on the value of the Chase Byte. This feature greatly reduces the number of
bytes to be sent to the PCA9626 when repetitive patterns need to be displayed as in
creating a marquee chasing effect.
If the PCA9626 on-chip 100 mA NAND FETs do not provide enough current or voltage to
drive the LEDs, then the PCA9635 and the PCA9635 with larger current or higher voltage
external drivers can be used.
PCA9626
24-bit Fm+ I
Rev. 01 — 2 June 2009
2
C-bus, identical to the Power-On Reset (POR) that initializes the registers to
2
C-bus 100 mA 40 V LED driver
2
C-bus controlled 24-bit LED driver optimized for voltage switch
2
C-bus commands. Seven hardware address pins allow up to
2
C-bus addresses allow all or
2
C-bus address, allowing
Product data sheet

Related parts for pca9626

pca9626 Summary of contents

Page 1

... Byte’ allows enabling or disabling of selective LED outputs depending on the value of the Chase Byte. This feature greatly reduces the number of bytes to be sent to the PCA9626 when repetitive patterns need to be displayed as in creating a marquee chasing effect. ...

Page 2

... I 4 software programmable I LED Sub Call addresses) allow groups of devices to be addressed at the same time in any combination (for example, one register used for ‘All Call’ so that all the PCA9626s on the I three different addresses so that same time in a group). Software enable and disable for Chase Byte allows execution of predefi ...

Page 3

... Keypad backlights for cellular phones or handheld devices 4. Ordering information Table 1. Ordering information Type number Topside mark PCA9626B PCA9626 PCA9626BS PCA9626 PCA9626_1 Product data sheet Package Name Description LQFP48 plastic low profile quad flat package; 48 leads; body 7 7 1.4 mm HVQFN48 plastic thermal enhanced very thin quad flat package; ...

Page 4

... POWER- RESET V SS PWM REGISTER X BRIGHTNESS CONTROL 24.3 kHz 97 kHz 25 MHz OSCILLATOR OE Remark: Only one LED output shown for clarity. Fig 1. Block diagram of PCA9626 C-BUS CONTROL LED STATE SELECT REGISTER MUX/ GRPFREQ CONTROL REGISTER GRPPWM REGISTER 190 Hz '0' – ...

Page 5

... C-bus 100 LED driver LED19 34 LED18 33 LED17 32 LED16 LED15 28 LED14 27 LED13 26 LED12 002aad662 LED19 34 LED18 33 LED17 32 LED16 PCA9626BS LED15 28 LED14 27 LED13 26 LED12 002aad609 © NXP B.V. 2009. All rights reserved ...

Page 6

... I/O 40 power supply Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Description LED driver 22 LED driver 23 supply ground address input 0 address input 1 LED driver 0 LED driver 1 LED driver 2 LED driver 3 LED driver 4 ...

Page 7

... I date closed system where the designer controls the address assignment these addresses can be used since the PCA9626 treats them like any other address. The LED All Call, Software Rest and PCA9564 or PCA9665 slave address (if on the bus) can never be used for individual device addresses. • ...

Page 8

... Software Reset I The address shown in performed by the master. The Software Reset address (SWRST Call) must be used with R/W = logic 0. If R/W = logic 1, the PCA9626 does not acknowledge the SWRST. See Section 7.6 “Software reset” Fig 5. Remark: The Software Reset I ...

Page 9

... Control register Following the successful acknowledgement of the slave address, LED All Call address or LED Sub Call address, the bus master will send a byte to the PCA9626, which will be stored in the Control register. The lowest 6 bits are used as a pointer to determine which register will be accessed (D[5:0]) ...

Page 10

... LED10 read/write brightness control LED11 read/write brightness control LED12 read/write brightness control LED13 read/write brightness control LED14 read/write brightness control LED15 read/write brightness control LED16 read/write brightness control LED17 PCA9626 02 … as long © NXP B.V. 2009. All rights reserved ...

Page 11

... SUBADR2 SUBADR3 ALLCALLADR Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Type Function read/write brightness control LED18 read/write brightness control LED19 read/write brightness control LED20 read/write brightness control LED21 read/write brightness control LED22 ...

Page 12

... R read only 1 - read only 0 - read only [1] Change of the outputs at the STOP command allows synchronizing outputs of more than one PCA9626. Applicable to registers from 02h (PWM0) to 08h (LEDOUT) only. PCA9626_1 Product data sheet Value Description 0 Register Auto-Increment disabled. 1* Register Auto-Increment enabled. 0* Auto-Increment bit Auto-increment range as defined in 1 Auto-Increment bit Auto-increment range as defi ...

Page 13

... PWM23 7:0 IDC23[7:0] R/W IDCx 7:0 = -------------------------- - 256 Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Description 0000 0000* PWM0 Individual Duty Cycle 0000 0000* PWM1 Individual Duty Cycle 0000 0000* PWM2 Individual Duty Cycle 0000 0000* PWM3 Individual Duty Cycle ...

Page 14

... GRPFREQ - Group Frequency register (address 1Bh) bit description Register Bit Symbol GRPFREQ 7:0 GFRQ[7:0] GFRQ 7 --------------------------------------- - s 24 Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Access Value Description R/W 1111 1111 GRPPWM register Access Value Description R/W 0000 0000* GRPFREQ register 1 © ...

Page 15

... Product data sheet CHASE - Chase pattern control register (address 1Ch) bit description Register Bit Symbol CHASE 7:0 CHC[7:0] Table 11 “CHASE Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Access Value Description R/W 0000 0000* CHASE register sequence”. Table 11 are on © ...

Page 16

Table 11. CHASE sequence X = enabled; empty cell = disabled. Command Hex LED channel ...

Page 17

Table 11. CHASE sequence …continued X = enabled; empty cell = disabled. Command Hex LED channel ...

Page 18

Table 11. CHASE sequence …continued X = enabled; empty cell = disabled. Command Hex LED channel ...

Page 19

Table 11. CHASE sequence …continued X = enabled; empty cell = disabled. Command Hex LED channel ...

Page 20

... LEDOUT4 7:6 LDR19 5:4 LDR18 3:2 LDR17 1:0 LDR16 LEDOUT5 7:6 LDR23 5:4 LDR22 3:2 LDR21 1:0 LDR20 Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Access Value Description R/W 00* LED3 output state control R/W 00* LED2 output state control R/W 00* LED1 output state control R/W 00* LED0 output state control R/W ...

Page 21

... ALLCALLADR - LED All Call I description Register Bit Symbol ALLCALLADR 7:1 AC[7:1] 0 AC[0] 2 C-bus address allows all the PCA9626s on the bus to be programmed 2 C-bus read or write sequence. The register address can also be programmed Rev. 01 — 2 June 2009 2 24-bit Fm+ I C-bus 100 LED driver Access Value Description 2 R/W ...

Page 22

... Once the SWRST Call address has been sent and acknowledged, the master sends 2 bytes with 2 specific values (SWRST data byte 1 and byte 2): a. Byte 1 = A5h: the PCA9626 acknowledges this value only. If byte 1 is not equal to A5h, the PCA9626 does not acknowledge it. ...

Page 23

... NXP Semiconductors If more than 2 bytes of data are sent, the PCA9626 does not acknowledge any more. 5. Once the right 2 bytes (SWRST data byte 1 and byte 2 only) have been sent and correctly acknowledged, the master sends a STOP command to end the SWRST Call: the PCA9626 then resets to the default value (power-up value) and is ready to be addressed again within the specifi ...

Page 24

... Bit transfer Figure 9). SDA SCL S START condition Definition of START and STOP conditions Figure 10). Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Figure 8). change of data allowed mba607 P STOP condition © NXP B.V. 2009. All rights reserved. ...

Page 25

... RECEIVER TRANSMITTER RECEIVER data output by transmitter data output by receiver SCL from master 1 S START condition 2 C-bus Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver MASTER MASTER TRANSMITTER/ MULTIPLEXER RECEIVER SLAVE not acknowledge acknowledge 2 8 clock pulse for ...

Page 26

... A MODE1 acknowledge register selection from slave Auto-Increment on ALLCALLADR register A P acknowledge from slave STOP condition Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver (1) data for register D[5: acknowledge acknowledge from slave from slave STOP condition 002aad612 ...

Page 27

START condition R/W register selection acknowledge from slave Auto-Increment on PWM22 register data PWM23 register data (cont.) A acknowledge from slave This example ...

Page 28

... START condition (1) In this example, several PCA9626s are used and the same sequence (A) (above) is sent to each of them. (2) ALLCALL bit in MODE1 register is previously set to 1 for this example. (3) OCH bit in MODE2 register is previously set to 1 for this example. 2 Fig 16. LED All Call I ...

Page 29

... A4 LED21 A5 LED22 A6 LED23 Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver LED light bar LED light bar LED light bar LED light bar LED light bar © NXP B.V. 2009. All rights reserved ...

Page 30

... LOW-level output current LED driver outputs; V ground supply current per V total power dissipation T T power dissipation per channel T T storage temperature ambient temperature operating Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Min 0 [1] 2400 = 0 ...

Page 31

... DD - 0 [1] - 1.70 SS 0 [2] 4.5 V 100 - = 2 0 3.7 0 3.7 PCA9626 Max Unit 5 2.0 V +0. 5 +0 +0. 5 © NXP B.V. 2009. All rights reserved. ...

Page 32

... C-bus Max Min Max 100 0 400 - 3.45 0.1 0.9 3.45 0.1 0.9 - 100 - - 1 0.6 - [5] 300 20 + 0.1C 300 b [5] 1000 20 + 0.1C 300 PCA9626 Fast-mode Unit 2 Plus I C-bus Min Max 0 1000 kHz 0.05 0.45 s 0. 120 ns - 120 150 ns - 150 ns - 450 ns - 450 ns © NXP B.V. 2009. All rights reserved. ...

Page 33

... LOW HIGH SCL SU;DAT HD;DAT and Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver of the SCL signal) in order for the SDA output stage is specifi HD;STA SU;STA SU;STO Sr ...

Page 34

... SDA and SCL > less current Load capacitance includes jig and probe capacitance Termination resistance should be equal to the output impedance Z T Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver V DD open GND ...

Page 35

... Rev. 01 — 2 June 2009 2 24-bit Fm+ I C-bus 100 LED driver detail 0.75 0.95 1 0.2 0.12 0.1 0.45 0.55 EUROPEAN PROJECTION PCA9626 SOT313 ( 0.55 0 ISSUE DATE 00-01-19 03-02-25 © NXP B.V. 2009. All rights reserved ...

Page 36

... REFERENCES JEDEC JEITA - - - - - - Rev. 01 — 2 June 2009 2 24-bit Fm+ I C-bus 100 LED driver detail 0.5 4.4 0.1 0.05 0.05 0.3 EUROPEAN PROJECTION PCA9626 SOT778 0.1 ISSUE DATE 04-07-30 04-10-07 © NXP B.V. 2009. All rights reserved ...

Page 37

... Package placement • Inspection and repair • Lead-free soldering versus SnPb soldering 17.3 Wave soldering Key characteristics in wave soldering are: PCA9626_1 Product data sheet 24-bit Fm+ I Rev. 01 — 2 June 2009 PCA9626 2 C-bus 100 LED driver © NXP B.V. 2009. All rights reserved ...

Page 38

... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 23. Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver Figure 23) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 ...

Page 39

... Least Significant Bit Machine Model Most Significant Bit Printed-Circuit Board Pulse Width Modulation Red/Green/Blue Red/Green/Blue/Amber System Management Bus Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver peak temperature 001aac844 © NXP B.V. 2009. All rights reserved. time ...

Page 40

... Revision history Table 21. Revision history Document ID Release date PCA9626_1 20090602 PCA9626_1 Product data sheet 24-bit Fm+ I Data sheet status Change notice Product data sheet - Rev. 01 — 2 June 2009 PCA9626 2 C-bus 100 LED driver Supersedes - © NXP B.V. 2009. All rights reserved ...

Page 41

... Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners C-bus — logo is a trademark of NXP B.V. http://www.nxp.com salesaddresses@nxp.com Rev. 01 — 2 June 2009 PCA9626 2 24-bit Fm+ I C-bus 100 LED driver © NXP B.V. 2009. All rights reserved ...

Page 42

... Handling information . . . . . . . . . . . . . . . . . . . 37 Soldering of SMD packages . . . . . . . . . . . . . . 37 Introduction to soldering Wave and reflow soldering . . . . . . . . . . . . . . . 37 Wave soldering Reflow soldering Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 39 Revision history . . . . . . . . . . . . . . . . . . . . . . . 40 Legal information . . . . . . . . . . . . . . . . . . . . . . 41 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 41 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Disclaimers Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Contact information . . . . . . . . . . . . . . . . . . . . 41 Contents Date of release: 2 June 2009 Document identifier: PCA9626_1 All rights reserved. ...

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