NXP Bright ideas User Manual

Bright ideas for LED applications

LED solutions for gaming, mobile, signage, LCD TV backlighting, LED indication, and more

Bright ideas for LED applications

At NXP Semiconductors, we have a portfolio ﬁlled with bright ideas for LED applications. We design for high performance and lower overall cost, focusing on power efﬁciency and ﬂexible design-in.

As the world’s leading provider of products based on the I2C-bus, we work closely with our customers and partners to develop next-generation LED solutions. That means you get options like Fastmode Plus, a wide supply range (2.3 to 5.5 V), and ﬂexible PWM functions. It also means ultralow standby modes (<1 µA), lower overhead on the CPU, and extended battery life in mobile applications.

NXP LED applications

Gaming 4 I

C-bus enables easy system modiﬁcation and designs that are easy to scale

4 Voltage-switch PWM dissipates current in external resistor to reduce on-chip heating

4 Long-distance communication is easy to implement

4 Individual addresses are available, as are programmable sub-calls. That means groups of

devices can responds to the same software commands, and thus reduce overhead

4 Bus controllers and bus buffers make it easy to combine the I

We even give you a head start on design, with application boards and daughter cards, and have an established manufacturing infrastructure that supports very high volumes.

It’s everything you need to make lighting affordable, in everything from mobile handsets and gaming systems to outdoor billboards, signage, and more.

The table below provides an overview of the special beneﬁts we bring to speciﬁc LED applications. The rest of the brochure highlights key products in the portfolio.

C-bus with any processor

Mobile

Signage

LED TV

backlighting

LED

indication

4 Up to 30% longer battery standby times

4 Ultra-low power consumption in standby modes (< 1 µA)

4 Memorizes complex blink patterns, ofﬂoads CPU

4 Lower-cost, drop-in replacements for Silicon Touch ST2221A and

STMicroelectronics STP08CDC596

4 Ample manufacturing capacity for high-volume production

4 Very low power surge, due to staggered ON time, which reduces EMI

4 Supports driving external FETs or switched-mode regulators, for higher voltage/

current LED strings

4 External clock input supports device synchronization, to eliminate noise and artifacts

4 Simple I2C-bus ﬁrmware

4 Ofﬂoad the microcontroller, since it doesn’t have to communicate after the LED is programmed,

and it doesn’t have to manage LED power

4 Unused bits can be put to use as GPIO

For more information, visit www.nxp.com/i2c

NXP I2C-bus interface LED voltage sources PCA962x and PCA963x

PWM

SDA

SCL

PWM

SDA

SCL

VDD = 2.5 V, 3.3 V or 5.0 V 5 V

10 kΩ

(1)

10 kΩ 10 kΩ

PCA9633

C-bus/SMBus

master

12 V

PCA9600CPU

PCA9633

1/2 bat 54A

3.3 V

3.3 V5 V5 V5 V3.3 V3.3 V

1/2 bat 54A

Bus A

3.3 V

Bus B

5 V

Cable Cable

1/2 bat 54A

PCA962x family

4 I2C-bus interface = Fast-mode Plus 4 SDA/SCL = 1 MHz and 30 mA 4 Supply = 2.3 to 5.5 V 4 256 step duty cycle adjustment PWM for each bit plus

global PWM for all bits

4 Operation = 40 V, 100 mA for all outputs 4 SO, TSSOP, HVQFN packages

PCA9623 4-channel I2C-bus interface LED voltage source

PCA9624 8-channel I

PCA9622 16-channel I

PCA9626 24-channel I

C-bus interface LED voltage source

The PCA9633 driving LEDs directly, or for higher voltage/current capability,

through transistors or through a FET.

PCA963x family

4 I2C-bus interface = Fast-mode Plus 4 SDA/SCL = 1 MHz and 30 mA 4 Supply = 2.3 to 5.5 V 4 256 step duty cycle adjustment PWM for each bit plus

global PWM

4 Operation = 5 V, 25 mA for all outputs 4 Push-pull outputs enable glue less connection to FET or

switched-mode regulators

4 PCA9632 with ultra-low power standby mode (< 1 µA) 4 SO, TSSOP, HVSON, HVQFN packages

PCA9632

PCA9633 4-channel I

PCA9634 8-channel I

PCA9635 16-channel I

Low-power, 4-channel I2C-bus interface LED voltage source

C-bus interface LED voltage source

Also recommended

PCA9600 I2C-bus buffer

PCA9665 I

C-bus controller

The PCA9633 in a typical long-dis tance cable architecture

NXP I2C-bus interface LED voltage source with 12-bit PWM PCA9685

Current mode DG

DC converter

PCA9685

Microcontroller

RGB color

sensor

350 mA to 1A

32-48 LED strings

Turn on delay features

avoids spikes from PSU

Duty cycle controls the

individual dimming of the LED strings

PCA9901

CTRL LEDOUT

ISET

ext

GND

Training

start

Training

end

LED ON

Pattern 1 Pattern 2

Sequence

Pattern 3

LED OFF LED OFF

LED ON LED ON

Features

4 I2C-bus interface = Fast-mode Plus 4 SDA = 1 MHz and 30 mA 4 Supply = 2.3 to 5.5 V 4 4096 step duty cycle adjustment PWM for each bit 4 Frequency = 100 to 1000 Hz 4 External clock option allows synchronization and frequency

control

4 Staggered ON times reduce current surge 4 Operation = 5 V, 25 mA for all outputs 4 Push-pull outputs enable glue less connection to FET or

switched-mode regulators

4 TSSOP, HVQFN packages

The PCA9685 in a typical RGB LED architecture with FET and current source

NXP 1-wire interface current source LED driver PCA9901

Features

4 Supply = 2.1 to 5.5 V 4 1.8-V interface 4 LED supply = 1 to 20 mA with 40-mV dropout at 20 mA 4 12-bit adjustments of OFF time between 20 ms and 5.1

seconds

4 12-bit adjustments of ON time between 1 and 255 ms 4 Options for training sequences: training, run once/

continuous, stop, reset, bypass mode

4 Ofﬂoads CPU from blinking operation, extending battery

standby time by 30% in mobile applications

4 TSSOP, HVSON, CSP packages

PCA9901 block diagram

PCA9901 blinking patterns

NXP serial interface current sink LED drivers PCA9922 and PCA9926

Enable

Clock

Scan

LED

= 3 ~ 4 (V)

Latch

Serial-in

R-extRGND

CPU

Serial-out

Out 0

Out 7

Enable

Clock

Latch

Serial-in

R-ext GND Serial-out

Out 0

Out 7

–

PWM

SDA

SCL

RESET

SDA

SCL

3.3 V 5 V

10 kΩ10 kΩ 10 kΩ

Features

4 Ideal for LED billboards and bus signs 4 Supply = 2.3 to 5.5 V 4 25-MHz serial interface 4 8 channels supporting 15 to 60 mA at 5V 4 Output error detection: LED open, LED short, pin shorted

to GND

4 DIP, TSSOP, HVQFN packages

The PCA9922 in a typical multi-device architecture

NXP I

C-bus interface voltage sources PCA953x and PCA955x

Features

4 SDA = 400 kHz and 3 mA 4 Supply = 2.3 to 5.5 V 4 Open-drain output = 25 mA at 5 V with 100 mA max (200

mA max for 16-bit)

4 256-step duty cycle and frequency adjustment on two

PWMs

4 Each output selects OFF, ON, PWM0 or PWM1 4 PCA953x Dimmer PWM = 160 Hz to 1.6 sec 4 PCA955x Blinker PWM = 40 Hz to 6.2 sec 4 SO, TSSOP, HVSON, HVQFN package

Dimmer Blinker Description

PCA9530 PCA9550 2-LED control

PCA9531 P CA9551 8-LED control

PCA9532 PCA9552 16-LED control

PCA9533 PCA9553 4-LED control

Typical application for LED controller

Color wheel

For standard IC packaging, visit www.standardics.nxp.com/packaging/ For package outlines, visit www.standardics.nxp.com/packaging/package.outlines/ For a list of sales ofﬁces and distributors near you, visit www.nxp.com/proﬁle/sales/

www.nxp.com

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Date of re lease: October 20 07 Document order number: 9397 750 16133 Printe d in the USA

NXP Bright ideas User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual