CypressCY3268PowerPSoC智能LED照明解決方案

作者：時(shí)間：2012-04-12 來(lái)源：網(wǎng)絡(luò)

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LED驅(qū)動(dòng)器采用可編程片上系統(tǒng)(PSoC)技術(shù),具有最好比的功率控制器和開(kāi)關(guān)器件,可以替代傳統(tǒng)的MCU,系統(tǒng)IC和大量的分立器件,并集成了1A 2MHz FET,滯后控制器,電流檢測(cè)放大器和PrISM/PWM調(diào)制器,能容易創(chuàng)建照明應(yīng)用的電源片上系統(tǒng)解決方案.主要用在舞臺(tái)LED照明,建筑物LED照明,通用LED照明,汽車和新能源汽車LED照明等.本文介紹了PowerPSoC系列主要特性,架構(gòu)和邏輯方框圖,多種RGGB色彩混合的LED照明框圖,以及CY3268 PowerPSoC 照明入門套件主要特性,CY3268 PowerPSoC 板方框圖,電路圖和PCB布局圖.

本文引用地址：http://www.ex-cimer.com/article/200509.htm

The PowerPSoC family (CY8CLED04D01, CY8CLED04D02, CY8CLED04G01, CY8CLED03D01, CY8CLED03D02, CY8CLED03G01,CY8CLED02D01, CY8CLED01D01) incorporates programmable system-on-chip technology with the best in class power electronics controllers and switching devices to create easy to use power-system-on-chip solutions for lighting applications.

All PowerPSoC family devices are designed to replace traditional MCUs, system ICs, and the numerous discrete components that surround them. PowerPSoC devices feature high performance power electronics including 1 ampere 2 MHz power FETs, hysteretic controllers, current sense amplifiers, and PrISM/PWM modulators to create a complete power electronics solution for LED power management.

CY8CLED0xx0x系列主要特性:

■ Integrated power peripherals

Four internal 32 V low side N-Channel power FETs

• RDS(ON)– 0.5 for 1.0 A devices

• Up to 2 MHz configurable switching frequency

Four hysteretic controllers

• Independently programmable upper and lower thresholds

• Programmable minimum ON/OFF timers

Four low side gate drivers with programmable drive strength

Four precision high side current sense amplifiers

Three 16-bit LED dimming modulators: PrISM, DMM, and PWM

Six fast response (100 ns) voltage comparators

Six 8-bit reference DACs

Built-in switching regulator eliminates external 5 V supply

Multiple topologies including floating load buck, floating load buck-boost, and boost

■ M8C CPU core

Processor speeds up to 24 MHz

■ Advanced peripherals (PSoC® Blocks)

Capacitive sensing application capability

DMX512 interface

I2C master or slave

Full-duplex UARTs

Multiple SPI masters or slaves

Integrated temperature sensor

Up to 12-bit ADCs

6 to 12-bit incremental ADCs

Up to 9-bit DACs

Programmable gain amplifiers

Programmable filters and comparators

8 to 32-bit timers and counters

Complex peripherals by combining blocks

Configurable to all GPIO pins

■ Programmable pin configurations

25 mA sink, 10 mA source on all GPIO and function pins

Pull-up, pull-down, high Z, strong, or open drain drive modes on all GPIO and function pins

Up to 10 analog inputs on GPIO

Two 30 mA analog outputs on GPIO

Configurable interrupt on all GPIO

■ Flexible on-chip memory

16 K flash program storage 50,000 erase / write cycles

1 K SRAM data storage

In-system serial programming (ISSP)

Partial flash updates

Flexible protection modes

EEPROM emulation in flash

■ Complete development tools

Free development software (PSoC Designer™)

Full-featured, in-circuit emulator (ICE) and programmer

Full-speed emulation

Complex breakpoint structure

128 KB trace memory

PowerPSoC CY8CLED0xx0x系列應(yīng)用:

Stage LED lighting

Architectural LED lighting

General purpose LED lighting

Automotive and emergency vehicle LED lighting

Landscape LED lighting

Display LED lighting

Effects LED lighting

Signage LED lighting

CY8CLED0xx0x系列選項(xiàng):

CY8CLED04D0x

• Four internal FETs with 0.5 A and 1.0 A options

• Four external gate drivers

CY8CLED04G01

• Four external gate drivers

CY8CLED03D0x

• Three internal FETs with 0.5 A and 1.0 A options

• Three external gate drivers

CY8CLED03G01

• Three external gate drivers

CY8CLED02D01

• Two 1.0 A internal FETs

• Two external gate drivers

CY8CLED01D01

• One 1.0 A internal FET

• One external gate driver

■ 56-pin QFN package

圖1.PowerPSoC架構(gòu)方框圖

圖2.CY8CLED04G01 邏輯方框圖

圖3.RGGB色彩混合的LED照明框圖:浮動(dòng)負(fù)載降壓轉(zhuǎn)換器

圖4.驅(qū)動(dòng)外接MOSFET的RGGB色彩混合的LED照明框圖:浮動(dòng)負(fù)載降壓轉(zhuǎn)換器

圖5.單路升壓驅(qū)動(dòng)三路浮動(dòng)負(fù)載降壓通路的LED照明框圖

CY3268 PowerPSoC 照明入門套件

The CY3268 PowerPSoC™ Lighting Starter Kit demonstrates the ability of PowerPSoC to create scalable LED management solutions. The PowerPSoC family of devices features high performance power electronics including 1A, 32V rated power FETs, hysteretic controllers, current sense amplifiers, and PrISM™ technology to create a complete solution for LED power management. PowerPSoC also features Cypress’ CapSense technology that can be used to design differentiated lighting applications.

This kit also enables designers to test and evaluate preliminary designs using PowerPSoC and understand the design flow using PSoC Designer™ software for the PowerPSoC device family.

CY3268 PowerPSoC 照明入門套件包括:

CY3268 PowerPSoC board

12 V, 1 A power supply

Two jumper shunts

Five PowerPSoC CY8CLED04D01-56LTXI samples

Kit CD, which includes:

PSoC Designer

PSoC Programmer

Demo firmware

Design files