OM6276 NXP Semiconductors, OM6276 Datasheet

Optical Sensor Development Tools PCA9633 Demo Board

OM6276

Manufacturer Part Number

OM6276

Description

Optical Sensor Development Tools PCA9633 Demo Board

Manufacturer

NXP Semiconductors

Datasheet

1.OM6276.pdf (2 pages)

Specifications of OM6276

Description/function

Demo Board

Interface Type

Ethernet, I2C

Software

Software Not Included

For Use With/related Products

PCA9633

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Headline

Easily test and demonstrate LED

dimming and blinking

This flexible, easy-to-program board makes it simple to test and demonstrate LED blinking and

dimming. Integrated Fast-mode Plus supports faster updates and longer buses with higher

capacitance.

Key features

4 I ndividual and group LED control

4 F amiliar I

4 F ast-mode Plus for longer LED

4 O utput Enable pin for full control of

4 P reprogrammed with six operating

4 U ser-reprogrammable for custom

4 D aisy-chain configurations with up to

with up to 256 levels of brightness

strings and faster updates

multiple devices controlling LEDs

modes

color patterns

eight boards

C commands

The PCA9633 demo board is a

complete, ready-to-run test environment

for dimming and blinking LEDs.

Designed for flexibility, it comes pre-

programmed with six operating modes,

including color wash and random color,

and can be reprogrammed to create

custom color patterns.

The board uses familiar I

and supports the higher drive of Fast-

mode Plus (1-MHz and 30-mA), so

designs can use longer strings of LEDs

and higher frequencies.

The board is configured with four LEDs,

one each for red, green, blue, and

amber. The LEDs are connected to the

PCA9633, which has a total of five 8-bit

Pulse Width Modulators (PWMs) for

dimming and blinking the LEDs. The

first four PWMs are used to control each

of the four LEDs individually, with up to

NXP demo board for Fast-

mode Plus 4-bit I

controller PCA9633

C commands

256 brightness levels. The fifth is used

for group control, dimming, or blinking

all the LEDs simultaneously to create

256 levels of brightness with combined

programmable, so groups of devices

can be assigned the same address and

controlled with a single command.

colors.

The PCA9633 has four individually

controlled outputs, configurable as

25-mA open drains or 10-mA/25-mA

push-pulls, that can be selected for

off, on, dim, or dim with global control.

An Output Enable pin makes it easy

to configure hardware dimming or

synchronized blinking over multiple

devices.

Seven address pins allow up to 126 I

addresses on the I

four I

C addresses are software

C LED

C-bus. Additionally,

Related parts for OM6276

OM6276 Summary of contents

Page 1

Headline Easily test and demonstrate LED dimming and blinking This flexible, easy-to-program board makes it simple to test and demonstrate LED blinking and dimming. Integrated Fast-mode Plus supports faster updates and longer buses with higher capacitance. Key features 4 I ndividual and group LED control with up to 256 levels of brightness 4 F amiliar I C commands ast-mode Plus for longer LED strings and faster updates 4 O utput Enable pin for full control of multiple devices controlling LEDs 4 P reprogrammed with six operating modes 4 U ser-reprogrammable for custom color patterns 4 ...

Page 2

The board includes external 60-V FET drivers, which can be connected to high-current, 350-mA LEDs. A four-key keypad gives the user direct control over the RGBA color mixing and light patterns. Power can be supplied by the board’s 9-V battery or via an external power connector. The RJ45 connector and cable can be used to daisy-chain multiple boards, enabling the microcontroller on one board to act as the master for up to seven additional boards. Reprogramming the microcontroller Reprogramming the microcontroller requires an in- circuit programmer (ICP), Flash Magic software (for loading the microcontroller with compiled hex files), and source code. For the ICP, NXP recommends the USB-ICP-LPX9xx, available at www.teamfdi.com. Flash Magic software is sponsored by NXP and is available from the Embedded Systems Academy (www.esacademy.com/software/flashmagic/). Devices on the PCA9633 demo board Device Description PCA9633 Fast-mode Plus 4-bit I 2 C-bus LED controller with individual 8-bit, 256-step PWMs for each LED plus a fifth 8-bit, 256-step group PWM for dimming or blinking combined colors. P89LPC925 Flash microcontroller. Uses embedded firmware to control the PCA9633. User-programmable via 10- pin header and an external ICP-style programmer. ...

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