NXP Semiconductors PCA9685 User Manual Download Page 10

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UM10574

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User manual

Rev. 1 — 1 April 2014

10 of 14

NXP Semiconductors

UM10574

PCA9685 demonstration board OM13332

Fig 6.

Device configuration screen for PWM0 to PWM3

Fig 7.

Device configuration screen Control registers

Summary of Contents for PCA9685

Page 1: ...005 1 or Fm I2C Bus development board This daughter board makes it easy to test and design with the PCA9685 the LED output driver is programmed to be either open drain with a 25 mA current sink capabi...

Page 2: ...d User manual Rev 1 1 April 2014 2 of 14 Contact information For more information please visit http www nxp com For sales office addresses please send an email to salesaddresses nxp com NXP Semiconduc...

Page 3: ...demonstrates the capabilities of the PCA9685 On board RGB and White LEDs for visual experience Convenient test points for easy scope measurements and signal access USB interface to the host PC No exte...

Page 4: ...rt The software allows the user to select one of the I2C bus devices on the board from a menu and also provides a Universal mode I2C Expert mode to allow users to create their own I2C bus commands wit...

Page 5: ...board should be disconnected from your PC before connecting the OM13332 board on to it The OM13332 board has a 14 pin male connector J4 that connects to the 14 pin male connector J1 on the Win I2CUSB...

Page 6: ...3 3 V and connected 2 3 for VDD 5 V S1 8 position DIP switch to select I2C bus address A 0 5 S1 1 6 for this device default is 0x80 all switches S1 1 6 are ON position S1 7 is used to control output...

Page 7: ...2 LED0 LW E67C white 5 V A1 C2 A2 C1 C3 A3 D3 LED 1 3 LRTB_G6SG D4 LED4 LW E67C white R10 440 R11 1 16 k R12 720 R13 720 LED0 LED1 LED2 LED3 R14 440 R15 1 16 k R16 720 LED4 LED5 LED6 R17 720 R18 440 R...

Page 8: ...the Options menu or by double clicking the frequency symbol on the bottom of the window 8 1 Dimming and brightness control for individual LED The PCA9685 has 4096 steps 12 bit PWM of individual LED b...

Page 9: ...played by clicking the following options PWM 0 to 3 individual brightness control for LED0 to LED3 PWM 4 to 7 individual brightness control for LED4 to LED7 PWM 8 to 11 individual brightness control f...

Page 10: ...l disclaimers NXP Semiconductors N V 2014 All rights reserved User manual Rev 1 1 April 2014 10 of 14 NXP Semiconductors UM10574 PCA9685 demonstration board OM13332 Fig 6 Device configuration screen f...

Page 11: ...and All LED OFF bar for all LEDs dimming brightness effect 3 Adjust the PRESCALE bar to program the LED output frequency PWM as shown below LED output frequency 25 MHz or EXTCLK 4096 prescale 1 When...

Page 12: ...e switch LED driver Product data sheet NXP Semiconductors www nxp com documents data_sheet PCA9685 pdf 2 UM10206 I2C Demonstration Board 2005 1 Quick Start Guide NXP Semiconductors www nxp com documen...

Page 13: ...onductors products and NXP Semiconductors accepts no liability for any assistance with applications or customer product design It is customer s sole responsibility to determine whether the NXP Semicon...

Page 14: ...started 3 3 1 Assumptions 3 3 2 Static handling requirements 3 3 3 Minimum system requirements 3 3 4 Power requirements 3 4 Installation 4 4 1 I2C demo board 2005 1 and WIN I2CUSB Lite software 4 4 2...

Page 15: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information NXP OM13332 598...