pca9634 NXP Semiconductors, pca9634 Datasheet

no-image

pca9634

Manufacturer Part Number
pca9634
Description
Pca9634 8-bit Fm I2c-bus Led Driver
Manufacturer
NXP Semiconductors
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
pca9634BS
Manufacturer:
NXP
Quantity:
36 000
Part Number:
pca9634BS
Manufacturer:
TI
Quantity:
100
Part Number:
pca9634D
Manufacturer:
NXP Semiconductors
Quantity:
30 551
Part Number:
pca9634D
Manufacturer:
NXP
Quantity:
9 064
Part Number:
pca9634D,118
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Part Number:
pca9634PW
Manufacturer:
TRINAMIC
Quantity:
1 200
Part Number:
pca9634PW
Manufacturer:
NXP Semiconductors
Quantity:
26 963
Part Number:
pca9634PW
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Part Number:
pca9634PW
Manufacturer:
NXP
Quantity:
17 150
Company:
Part Number:
pca9634PW
Quantity:
2 500
1. General description
The PCA9634 is an I
Red/Green/Blue/Amber (RGBA) color mixing applications. 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 LED output driver is
programmed to be either open-drain with a 25 mA current sink capability at 5 V or
totem-pole with a 25 mA sink, 10 mA source capability at 5 V. The PCA9634 operates with
a supply voltage range of 2.3 V to 5.5 V and the outputs are 5.5 V tolerant. LEDs can be
directly connected to the LED output (up to 25 mA, 5.5 V) or controlled with external
drivers and a minimum amount of discrete components for larger current or higher voltage
LEDs.
The PCA9634 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) allows asynchronous control of the LED
outputs and can be used to set all the outputs to a defined I
state. The OE can also be used to externally PWM the outputs, which is useful when
multiple devices need to be dimmed or blinked together using software control.
Software programmable LED Group and three Sub Call I
defined groups of PCA9634 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 PCA9634
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.
PCA9634
8-bit Fm+ I
Rev. 04 — 5 January 2007
2
C-bus, identical to the Power-On Reset (POR) that initializes the registers to
2
C-bus LED driver
2
C-bus controlled 8-bit LED driver optimized for
2
C-bus commands. Seven hardware address pins allow up to
2
C-bus addresses allow all or
2
C-bus programmable logic
2
C-bus address, allowing
Product data sheet

Related parts for pca9634

pca9634 Summary of contents

Page 1

... Individual and Group PWM controller values. The LED output driver is programmed to be either open-drain with current sink capability totem-pole with sink source capability The PCA9634 operates with a supply voltage range of 2 5.5 V and the outputs are 5.5 V tolerant. LEDs can be directly connected to the LED output ( mA, 5 ...

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 PCA9634s on the I three different addresses so that same time in a group). Software enable and disable for I ...

Page 3

... LED displays I LCD backlights I Keypad backlights for cellular phones or handheld devices 4. Ordering information Table 1. Ordering information Type number Topside mark PCA9634D PCA9634D SO20 PCA9634PW PCA9634 PCA9634BS 9634 PCA9634_4 Product data sheet Package Name Description plastic small outline package; 20 leads; body width 7.5 mm TSSOP20 plastic thin shrink small outline package ...

Page 4

... INPUT FILTER SDA POWER- RESET V SS 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 PCA9634 PCA9634_4 Product data sheet C-BUS CONTROL PWM GRPFREQ REGISTER 190 Hz Rev. 04 — 5 January 2007 ...

Page 5

... PCA9634PW LED0 6 LED1 7 8 LED2 LED3 002aac132 Fig 3. Pin configuration for TSSOP20 PCA9634BS LED7 11 LED6 002aac133 © NXP B.V. 2007. All rights reserved SDA 18 SCL LED7 13 LED6 ...

Page 6

... I/O serial data line 18 power supply supply voltage 19 I address input address input 1 Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver …continued pin and the exposed center pad. The V SS © NXP B.V. 2007. All rights reserved ...

Page 7

... A4 hardware selectable 2 C-bus address 2 C-bus (volatile programming) 2 C-bus address is enabled. PCA9634 sends an ACK when 2 C-bus address (E0h or 1110 000) must not be used 2 C-bus slave address since this address is enabled at power-up. All the 2 C-bus will acknowledge the address if sent by the I Rev. 04 — 5 January 2007 ...

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 PCA9634, 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

... C-bus communication, for example, changes the brightness of a single LED. Data 2 C-bus communication, for example, changing color 2 C-bus communication, for example, global brightness or Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver register address D3 D2 ...

Page 10

... Auto-Increment disabled 1* register Auto-Increment enabled 0* Auto-Increment bit Auto-Increment bit Auto-Increment bit Auto-Increment bit Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver Table 5). When AI[ the Auto-Increment for rollover values. For example, if the Control … … 0B ...

Page 11

... R/W [1] See Section 7.7 “Using the PCA9634 with and without external drivers” [2] Change of the outputs at the STOP command allows synchronizing outputs of more than one PCA9634. Applicable to registers from 02h (PWM0) to 08h (LEDOUT) only. [3] See Section 7.4 “Active LOW output enable input” PCA9634_4 Product data sheet … ...

Page 12

... GRPPWM - Group duty cycle control register (address 0Ah) bit description Register Bit Symbol GRPPWM 7:0 GDC[7:0] GDC 7:0 = -------------------------- - 256 Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I Access Value Description R/W 0000 0000* PWM0 Individual Duty Cycle R/W 0000 0000* PWM1 Individual Duty Cycle R/W 0000 0000* PWM2 Individual Duty Cycle R/W ...

Page 13

... LEDOUT0 7:6 LDR3 5:4 LDR2 3:2 LDR1 1:0 LDR0 LEDOUT1 7:6 LDR7 5:4 LDR6 3:2 LDR5 1:0 LDR4 Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I Access Value Description R/W 0000 0000* GRPFREQ register 1 (in seconds) Access Value Description R/W 00* LED3 output state control R/W 00* LED2 output state control R/W 00* LED1 output state control ...

Page 14

... ALLCALLADR - LED All Call I C-bus address register (address 11h) bit description Register Bit Symbol ALLCALLADR 7:1 AC[7:1] 0 AC[0] 2 C-bus address allows all the PCA9634s in the bus to be programmed Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver Access Value Description 2 R/W 1110 001* I ...

Page 15

... The OE pin can be used as a synchronization signal to switch on/off several PCA9634 devices at the same time. This requires an external clock reference that provides blinking period and the duty cycle. The OE pin can also be used as an external dimming control signal. The frequency of the external clock must be high enough not to be seen by the human eye, and the duty cycle value determines the brightness of the LEDs ...

Page 16

... 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 PCA9634 acknowledges this value only. If byte 1 is not equal to A5h, the PCA9634 does not acknowledge it. ...

Page 17

... NXP Semiconductors 7.7 Using the PCA9634 with and without external drivers The PCA9634 LED output drivers are 5.5 V only tolerant and can sink the device needs to drive LEDs to a higher voltage and/or higher current, use of an external driver is required. ...

Page 18

... Individual + Group PWM (non-inverted) Individual PWM Individual PWM (non-inverted) (non-inverted) off Individual + Group PWM (inverted) Individual PWM Individual PWM (inverted) (inverted Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver [1] LEDn state ) [2] high ...

Page 19

... PWMx register). Rev. 04 — 5 January 2007 8-bit Fm bits, 256 steps) with 10.73 508 510 512 509 511 PCA9634 2 C-bus LED driver 002aab417 © NXP B.V. 2007. All rights reserved ...

Page 20

... Product data sheet 2 C-bus Figure SDA SCL data line stable; data valid Figure 10.) S START condition Figure 11). Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver 9). change of data allowed mba607 P STOP condition © NXP B.V. 2007. All rights reserved. SDA SCL mba608 ...

Page 21

... TRANSMITTER/ RECEIVER TRANSMITTER RECEIVER data output by transmitter data output by receiver SCL from master 1 S START condition 2 C-bus Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I MASTER MASTER TRANSMITTER/ MULTIPLEXER RECEIVER SLAVE not acknowledge acknowledge 2 8 clock pulse for acknowledgement C-bus LED driver ...

Page 22

... Individual from slave selection brightness registers only Auto-Increment on PWM7 register PWM0 register A acknowledge from slave Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver (1) data for register D[4: acknowledge acknowledge from slave from slave STOP condition 002aac141 ...

Page 23

... START condition (1) In this example, several PCA9634s 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 17. LED All Call I ...

Page 24

... V SS LED7 002aac137 Limiting values Parameter supply voltage voltage on an input/output pin output current on pin LEDn ground supply current total power dissipation storage temperature ambient temperature Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver Conditions Min 0 ...

Page 25

... Hz; - 2.3 SCL = 0 Hz; - 2.9 SCL = 0 Hz; - 3.8 SCL [1] - 1.5 SS 0 1.6 - 2 2.5 0 3.7 PCA9634 2 C-bus LED driver Max Unit 5 15.5 A 2.0 V +0. 5 200 mA + +0 © ...

Page 26

... Product data sheet …continued = +85 C; unless otherwise specified. amb Conditions Conditions Standard-mode 2 I C-bus Min [1] 0 4.7 4.0 4.7 4.0 0 [2] 0.3 [3] 0.3 250 4.7 4.0 [5][ [7] - Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I Min Typ 0 3.7 Fast-mode Fast-mode Plus 2 I C-bus Max Min Max Min 100 0 400 0 - 1 ...

Page 27

... LOW HIGH 1 /f SCL SU;DAT HD;DAT and Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm the SCL signal) in order for the SDA output stage is specifi HD;STA SU;STA SU;STO Sr STOP bit 7 bit 8 acknowledge ...

Page 28

... SDA and SCL > less current Load capacitance includes jig and probe capacitance Termination resistance should be equal to the output impedance Z T generators. Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver V DD open GND ...

Page 29

... detail 1.1 1.1 1.4 0.25 0.25 0.4 1.0 0.043 0.043 0.055 0.01 0.01 0.016 0.039 EUROPEAN PROJECTION PCA9634 2 C-bus LED driver SOT163 ( 0.9 0 0.035 0.004 0.016 ISSUE DATE 99-12-27 03-02-19 © NXP B.V. 2007. All rights reserved ...

Page 30

... Rev. 04 — 5 January 2007 8-bit Fm detail 6.6 0.75 0.4 1 0.2 0.13 6.2 0.50 0.3 EUROPEAN PROJECTION PCA9634 2 C-bus LED driver SOT360 ( 0.5 8 0.1 o 0.2 0 ISSUE DATE 99-12-27 03-02-19 © NXP B.V. 2007. All rights reserved ...

Page 31

... 5.1 3.25 5.1 3.25 0.65 2.6 4.9 2.95 4.9 2.95 REFERENCES JEDEC JEITA MO-220 - - - Rev. 04 — 5 January 2007 8-bit Fm detail 0.75 0.05 0.1 2.6 0.1 0.05 0.50 EUROPEAN PROJECTION PCA9634 2 C-bus LED driver SOT662 ISSUE DATE 01-08-08 02-10-22 © NXP B.V. 2007. All rights reserved ...

Page 32

... Package placement • Inspection and repair • Lead-free soldering versus PbSn soldering 17.3 Wave soldering Key characteristics in wave soldering are: PCA9634_4 Product data sheet Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver © NXP B.V. 2007. All rights reserved ...

Page 33

... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 25. Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver Figure 25) than a PbSn process, thus 350 220 220 350 to 2000 > 2000 260 260 250 ...

Page 34

... 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. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver peak temperature time 001aac844 © NXP B.V. 2007. All rights reserved ...

Page 35

... V/3.3 V/5.0 V” to “2 5.0 V” “Abbreviations”: added acronym “MSB” Product data sheet Objective data sheet Objective data sheet Rev. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I Change notice Supersedes - PCA9634_3 nd paragraph nd sentence re-written nd dimming/blinking”, 2 bullet item: - PCA9634_2 - PCA9634_1 ...

Page 36

... 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. 04 — 5 January 2007 PCA9634 2 8-bit Fm+ I C-bus LED driver © NXP B.V. 2007. All rights reserved ...

Page 37

... SUBADR1 to SUBADR3: I subaddress 7.3.8 ALLCALLADR: LED All Call I 7.4 Active LOW output enable input . . . . . . . . . . . 15 7.5 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 15 7.6 Software Reset . . . . . . . . . . . . . . . . . . . . . . . . 16 7.7 Using the PCA9634 with and without external drivers . . . . . . . . . . . . . . . . . . . . . . . . 17 7.8 Individual brightness control with group dimming/blinking . . . . . . . . . . . . . . . . . . . . . . . Characteristics of the I 8.1 Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.1.1 START and STOP conditions . . . . . . . . . . . . . 20 8.2 System confi ...

Related keywords