pca9625 NXP Semiconductors, pca9625 Datasheet

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pca9625

Manufacturer Part Number
pca9625
Description
Pca9625 16-bit Fm I2c-bus 100 Ma 24 V Led Driver
Manufacturer
NXP Semiconductors
Datasheet

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Part Number:
pca9625D
Manufacturer:
NXP/恩智浦
Quantity:
20 000
1. General description
The PCA9625 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 PCA9625 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 24 V.
The PCA9625 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 PCA9625 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 PCA9625
through the I
their default state causing the outputs to be set HIGH (LED off). This allows an easy and
quick way to reconfigure all device registers to the same condition.
The PCA9625 and PCA9635 software is identical and if the PCA9625 on-chip 100 mA
NAND FETs do not provide enough current or voltage to drive the LEDs, then the
PCA9635 with larger current or higher voltage external drivers can be used.
PCA9625
16-bit Fm+ I
Rev. 02 — 15 January 2008
2
C-bus, identical to the Power-On Reset (POR) that initializes the registers to
2
C-bus 100 mA 24 V LED driver
2
C-bus controlled 16-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 pca9625

pca9625 Summary of contents

Page 1

... V to 5.5 V and the 100 mA open-drain outputs allow voltages The PCA9625 is one of the first LED controller devices in a new Fast-mode Plus (Fm+) family. Fm+ devices offer higher frequency ( MHz) and more densely populated bus operation (up to 4000 pF). ...

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 PCA9625s on the I three different addresses so that same time in a group). Software enable and disable for I ...

Page 3

... Type number Topside mark PCA9625D PCA9625D PCA9625_2 Product data sheet Package Name Description SO32 plastic small outline package; 32 leads; body width 7.5 mm Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver © NXP B.V. 2008. All rights reserved. Version SOT287 ...

Page 4

... V DD RESET V SS PWM REGISTER X BRIGHTNESS CONTROL 24.3 kHz 97 kHz GRPFREQ REGISTER 25 MHz OSCILLATOR 190 Hz OE Remark: Only one LED output shown for clarity. Fig 1. Block diagram of PCA9625 C-BUS CONTROL LED STATE SELECT REGISTER MUX/ CONTROL GRPPWM REGISTER '0' – ...

Page 5

... I address input address input LED driver LED driver LED driver LED driver 3 Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver 32 LED12 31 V SS(DRV)FET 30 LED11 29 LED10 28 LED9 27 LED8 26 V DD(DRV)FET ...

Page 6

... Sub Call address, will reduce the total number of possible addresses even further. 7.1.1 Regular I 2 The I C-bus slave address of the PCA9625 is shown in internal pull-up resistors are incorporated on the hardware selectable address pins and they must be pulled HIGH or LOW. Remark: Reserved I with: • ...

Page 7

... 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 PCA9625 does not acknowledge the SWRST. See Section 7.6 “Software Reset” PCA9625_2 Product data sheet ...

Page 8

... 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 PCA9625, which will be stored in the Control register. The lowest 5 bits are used as a pointer to determine which register will be accessed (D[4:0]). The highest 3 bits are used as Auto-Increment fl ...

Page 9

... PWM10 PWM11 PWM12 Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver Table 4). When AI[ the Auto-Increment for rollover values. For example, if the Control … … Type Function read/write Mode register 1 ...

Page 10

... PCA9625 does not respond PCA9625 responds PCA9625 does not respond PCA9625 responds PCA9625 does not respond to LED All Call I 1* PCA9625 responds to LED All Call I Rev. 02 — 15 January 2008 2 16-bit Fm+ I C-bus 100 LED driver Type ...

Page 11

... Bit [1] Change of the outputs at the STOP command allows synchronizing outputs of more than one PCA9625. Applicable to registers from 02h (PWM0) to 08h (LEDOUT) only. 7.3.3 PWM0 to PWM15, individual brightness control Table 7. Legend: * default value. Address 02h 03h 04h 05h 06h ...

Page 12

... GRPFREQ - Group Frequency register (address 13h) bit description Register Bit Symbol GRPFREQ 7:0 GFRQ[7:0] GFRQ 7:0 + --------------------------------------- - Rev. 02 — 15 January 2008 PCA9625 2 16-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 13

... Register Bit Symbol SUBADR1 7:1 A1[7:1] 0 A1[0] SUBADR2 7:1 A2[7:1] 0 A2[0] SUBADR3 7:1 A3[7:1] 0 A3[0] Rev. 02 — 15 January 2008 PCA9625 2 16-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 00* ...

Page 14

... When a HIGH level is applied to OE pin, all the LED outputs are high-impedance. The OE pin can be used as a synchronization signal to switch on/off several PCA9625 devices at the same time. This requires an external clock reference that provides blinking period and the duty cycle. ...

Page 15

... Byte 1 = A5h: the PCA9625 acknowledges this value only. If byte 1 is not equal to A5h, the PCA9625 does not acknowledge it. b. Byte 2 = 5Ah: the PCA9625 acknowledges this value only. If byte 2 is not equal to 5Ah, then the PCA9625 does not acknowledge it. If more than 2 bytes of data are sent, the PCA9625 does not acknowledge any more. ...

Page 16

... PWMx register). Rev. 02 — 15 January 2008 2 16-bit Fm+ I C-bus 100 LED driver bits, 256 steps) with 10.73 508 510 512 509 511 PCA9625 002aab417 © NXP B.V. 2008. All rights reserved ...

Page 17

... Bit transfer Figure 8). S START condition Definition of START and STOP conditions Figure 9). Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver Figure 7). change of data allowed mba607 P STOP condition © NXP B.V. 2008. All rights reserved. ...

Page 18

... RECEIVER TRANSMITTER RECEIVER data output by transmitter data output by receiver SCL from master 1 S START condition 2 C-bus Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver MASTER MASTER TRANSMITTER/ MULTIPLEXER RECEIVER SLAVE not acknowledge acknowledge 2 8 clock pulse for ...

Page 19

... Individual from slave selection brightness registers only Auto-Increment on PWM15 register PWM0 register A acknowledge from slave Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver (1) data for register D[4: acknowledge acknowledge from slave from slave STOP condition ...

Page 20

... START condition (1) In this example, several PCA9625s are used and the same sequence (A) (above) is sent to each of them. (2) ALLCALL bit in MODE1 register is equal to 1 for this example. (3) OCH bit in MODE2 register is equal to 1 for this example. 2 Fig 15. LED All Call I ...

Page 21

... LED10 A0 LED11 LED12 A4 LED13 A5 LED14 A6 LED15 SS(DRV)FET Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver LED light bar LED light bar © NXP B.V. 2008. All rights reserved 002aac788 ...

Page 22

... PCA9625_2 Product data sheet 16-bit Fm+ I Conditions per V pin SS(DRV)FET amb amb amb amb operating . DD(DRV)FET Conditions SO32 Rev. 02 — 15 January 2008 PCA9625 2 C-bus 100 LED driver Min Max Unit 0.5 +6 0.5 5 [ [ ...

Page 23

... DD - 1.3 - 1.4 - 1.5 (pin 24 and - 400 [1] - 1.70 SS 0 [3] 100 - [3] 1600 - - 2 - 2.5 0 3.7 PCA9625 Max Unit 1000 A 2.0 V +0. 5 +0 © NXP B.V. 2008. All rights reserved ...

Page 24

... C-bus I 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 the SCL signal) in order to IL PCA9625 Max Unit +0. 5 Fast-mode Unit 2 Plus I C-bus Min Max 0 1000 kHz 0.05 0.45 s 0. 120 ...

Page 25

... LOW HIGH SCL SU;DAT HD;DAT and Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver ) for the SDA output stage is specifi HD;STA SU;STA SU;STO Sr STOP bit 1 bit 0 acknowledge ...

Page 26

... SDA and SCL > less current Load capacitance includes jig and probe capacitance Termination resistance should be equal to the output impedance Z T Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver V DD open GND ...

Page 27

... 0.49 0.27 20.7 7.6 10.65 1.27 0.36 0.18 20.3 7.4 10.00 0.02 0.011 0.81 0.30 0.419 0.05 0.01 0.007 0.80 0.29 0.394 REFERENCES JEDEC JEITA MO-119 Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver detail 1.1 1.2 1.4 0.25 0.25 0.1 0.4 1.0 0.043 0.047 0.055 ...

Page 28

... Package placement • Inspection and repair • Lead-free soldering versus SnPb soldering 18.3 Wave soldering Key characteristics in wave soldering are: PCA9625_2 Product data sheet 16-bit Fm+ I Rev. 02 — 15 January 2008 PCA9625 2 C-bus 100 LED driver © NXP B.V. 2008. All rights reserved ...

Page 29

... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 21. Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver Figure 21) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 ...

Page 30

... Positive-channel Metal Oxide Semiconductor bipolar transistor with P-type emitter and collector and an N-type base Pulse Width Modulation Red/Green/Blue Red/Green/Blue/Amber System Management Bus Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver peak temperature 001aac844 © NXP B.V. 2008. All rights reserved. ...

Page 31

... Objective data sheet Rev. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver Change notice Supersedes - PCA9625_1 Table 3 changed from “AI[2:0] = 101 is used description”: bit 1 and bit 0 descriptions = 25 C and T amb : added “on pin V (pin 9)” to Conditions DD DD ...

Page 32

... 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. 02 — 15 January 2008 PCA9625 2 16-bit Fm+ I C-bus 100 LED driver © NXP B.V. 2008. All rights reserved ...

Page 33

... Handling information . . . . . . . . . . . . . . . . . . . 28 Soldering of SMD packages . . . . . . . . . . . . . . 28 Introduction to soldering Wave and reflow soldering . . . . . . . . . . . . . . . 28 Wave soldering Reflow soldering Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 30 Revision history . . . . . . . . . . . . . . . . . . . . . . . 31 Legal information . . . . . . . . . . . . . . . . . . . . . . 32 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 32 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Disclaimers Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Contact information . . . . . . . . . . . . . . . . . . . . 32 Contents Date of release: 15 January 2008 Document identifier: PCA9625_2 All rights reserved. ...

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