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UM10729
PCA9955A/B demonstration board OM13483
Rev. 2 — 1 August 2017
Document information
Info
Content
Keywords
Fm+ I2C-bus, PCA9955A/B, RGB and White LEDs, 16-channel x 8-bit
PWMs
Abstract
The OM13483 is an add-on to 9-pin connector of the NXP I2C demo board
2005-1 or Fm+ I
easy to test and design with the PCA9955A/B, a 16-channel Fast-mode
Plus (Fm+) 57 mA constant current and outputs allow up to 20 V for LED
supply. This demo board, along with the Win-I2CUSB Lite GUI
(PC based), provides an easy to use evaluation platform.
2
C-bus development board. This daughter board makes it
User manual
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Table of Contents
Related Manuals for NXP Semiconductors PCA9955A
Summary of Contents for NXP Semiconductors PCA9955A
- Page 1 2005-1 or Fm+ I C-bus development board. This daughter board makes it easy to test and design with the PCA9955A/B, a 16-channel Fast-mode Plus (Fm+) 57 mA constant current and outputs allow up to 20 V for LED supply. This demo board, along with the Win-I2CUSB Lite GUI...
- Page 2 For sales office addresses, please send an email to: salesaddresses@nxp.com UM10729 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors B.V. 2017. All rights reserved. User manual Rev. 2 — 1 August 2017 2 of 24...
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Page 3: Introduction
PCA9955A/B demonstration board OM13483 1. Introduction The PCA9955A/B evaluation board features LEDs for color mixing, blinking and dimming demonstrations. A graphical interface allows the user to explore the different functions of the driver easily. The board can be connected in series with other I C demo-boards to create an evaluation system. -
Page 4: Installation
1, connect the OM13483 board to the I2C demo board 2005-1 before connecting the USB cable. Once the board is connected, connect the USB cable and start the Win-I2CUSB Lite software. You are now ready to evaluate the PCA9955A/B. UM10729 All information provided in this document is subject to legal disclaimers. - Page 5 UM10729 NXP Semiconductors PCA9955A/B demonstration board OM13483 Fig 1. PCA9955A/B demo board (OM13483) mounting to the I2C demo board 2005-1 (OM6275) UM10729 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors B.V. 2017. All rights reserved.
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Page 6: Om13483 Connection To Fm+ I2C Bus Development Board
To PC USB port aaa-014227 Fig 2. PCA9955A/B demo board (OM13483) mounting to the Fm+ development board (OM13260) UM10729 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors B.V. 2017. All rights reserved. User manual Rev. -
Page 7: Om13483 Connection To Win-I2Cusb Hardware Adapter Board
Connect the OM13483 board to the Win-I2CUSB board before connecting the USB cable. Once the board is connected, connect the USB cable and start the Win-I2CUSB Lite software. You are now ready to evaluate the PCA9955A/B. Fig 3. PCA9955A/B demo board (OM13483) connecting to the Win-I2CUSB board UM10729 All information provided in this document is subject to legal disclaimers. -
Page 8: Hardware Description
CON4 (14-pin male connector) is connected to J1 on Win-I2CUSB hardware board as C-bus master device to drive this demo board. • J1 selects V power for PCA9955A/B, connected 1-2 for V = 5 V and connected 2-3 for V = 3.3 V. - Page 9 = +5 V) 1-2: select +5 V 2-3: select +3.3 V This 3 2 jumper is used to select REXT (pin 1) value for PCA9955A/B. (3 2-pin) (REXT = 1 k, 1-2: select REXT = 1 k and maximum output current is 57.3 mA 57 mA at max.)
- Page 10 Test Point 4 This TP4 is used to drive OE input pin 5 from external when J11 is open. Default PCA9955A/B slave address is 0x02h (AD[2:0] = GND). UM10729 All information provided in this document is subject to legal disclaimers.
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Page 11: Schematic
Short -> Output enabled (470ohm@100MHz) Jumper # Pin # PCA9955B PCA9745B (I2C-bus) (SPI Daisy-Chain) Note: OM13399 can use to connect this 9-pin female connector and convert to 14-pin for new I2C development board SCLK aaa-013943 Fig 5. PCA9955A/B demo board schematic (part A) - Page 12 4-white and 4-RGB LEDs connect to PCA9955A/B 16-channel outputs (The LEDs supply voltage can be selected either internal +3.3V/+5V or external up to +20V) WHT_LED1 LW E67C +3.3V...
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Page 13: Om13483 Demonstration Board Main Components
Section 4. All jumpers are in default setting and device address is set to 0x02 on J7, J9 and J10 (set AD[0:2] = GND) for PCA9955A/B demo board. When you have correctly installed the software and the demonstration board hardware is connected and recognized by the computer, start the Win-I2CUSB Lite UM10729 All information provided in this document is subject to legal disclaimers. -
Page 14: Pca9955A/B Blinking Demo For All White And Rgb Leds
‘Expert Mode’ as shown in Figure 2. Copy the ‘PCA9955A/B WHT_RGB LEDs blinking demo i2c address = 0x02h’ text file as shown below. From the ‘File’ drop-down menus select ‘Open’, and from the ‘open data file’ window select the ‘PCA9955A/B WHT_RGB LEDs blinking demo i2c address = 0x02h’... - Page 15 75%) and GRPFREQ= 06h (262 ms for blinking period) 00,Write,Yes,0,06,Comments: SW reset Sequence:01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,17,18,19,20,21,22,23 3. After opening the ‘PCA9955A/B WHT_RGB LEDs blinking demo i2c address = 0x02h’ text file, the Win-I2CUSB GUI in Expert mode screen will be displayed as shown in Figure 4.
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Page 16: Test Of Led Open Or Short Error Detection
1. Copy the ‘PCA9955A/B Open or Short test’ text file as shown below. From the ‘File’ drop-down menus select ‘Open’, and from the ‘open data file’ window select the ‘PCA9955A/B Open or Short test’... - Page 17 Example of Open or Short-circuit test for LED0 and LED1 UM10729 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors B.V. 2017. All rights reserved. User manual Rev. 2 — 1 August 2017 17 of 24...
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Page 18: Pca9955A/B Evaluation Steps With Fm+ Development Board
Section 4.3. All jumpers are in default setting and device address is set to 0x02 on J7, J9 and J10 (set AD[0:2] = GND) for PCA9955A/B demo board. When you have correctly installed the software and the demonstration board hardware is connected and recognized by the computer, start the Fm+ development board software. -
Page 19: Leds
1. From the ‘Device’ drop-down menus select ‘Expert Modes’ as shown in Figure 2. Copy the ‘PCA9955A/B WHT_RGB LEDs blinking & gradation demo i2c address = 0x02h’ text file as shown below. From the ‘File’ drop-down menus select ‘Open’, and from the ‘open data file’... - Page 20 02,Write,Yes,8200,45,01,Comments: set IREFALL not 0 to enable LED outputs 00,Write,Yes,0,06,Comments: write SW reset Sequence:01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24, 25,26,27,28,29,30,31,32,33,34,35,36,37,38 3. After opening the ‘PCA9955A/B WHT_RGB LEDs blinking & gradation demo i2c address = 0x02h’ text file, the ‘NXP Fm+ Board GUI’ in Expert mode screen is displayed as shown in Figure 4.
- Page 21 Fig 11. Message data in Expert mode to demo all White and RGB LEDs for blinking and gradation UM10729 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors B.V. 2017. All rights reserved. User manual Rev. 2 — 1 August 2017...
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Page 22: Support
UM10206, I2C Demonstration Board 2005-1 Quick Start Guide — NXP Semiconductors; www.nxp.com/documents/user_manual/UM10206.pdf UM10729 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors B.V. 2017. All rights reserved. User manual Rev. 2 — 1 August 2017 22 of 24... -
Page 23: Legal Information
In no event shall NXP Semiconductors, its affiliates or their suppliers be liable Notwithstanding any damages that customer might incur for any reason to customer for any special, indirect, consequential, punitive or incidental whatsoever, NXP Semiconductors’... -
Page 24: Table Of Contents
......13 PCA9955A/B evaluation steps ... . 13 PCA9955A/B blinking demo for all White and RGB LEDs . - Page 25 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: OM13483UL...
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