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Cypress公司的CY3267 PowerPSoC智能LED照明开发方案

来源：中电网

2019-03-28

类别：LED应用

128

拍明

原标题：Cypress CY3267 PowerPSoC智能LED照明开发方案

　　cypress公司的CY8CLED0xD/G0y系列产品是PowerPSoC智能LED驱动器,采用可编程系统级芯片(SoC)技术,可以替代传统的MCU,系统IC 和数量巨大的分立元件.器件包括24MHz CPU,闪存编程存储器,SRAM数据存储器和可配置的I/O以及可编程数字和模拟系统,工作电压7 V - 32 V,采用内置的MOSFET开关和外接MOSFET,提供1A电流,主要用于LED照明.本文介绍了PowerPSoC系列主要特性,框图,数字和模拟系统框图,典型应用, CY3267 PowerPSoC®照明评估板主要特性,框图,电路图,材料清单和评估板设计文件.

　　The PowerPSoC family 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. Configurable power, analog, digital, and interconnect circuitry enables a high level of integration in a host of industrial, commercial, and consumer LED lighting applications.

　　This architecture integrates programmable analog and digital blocks to enable you to create customized peripheral configurations that match the requirements of each individual application. Additionally, the device includes a 24 MHz CPU, Flash program memory, SRAM data memory, and configurable I/O in a range of convenient pinouts and packages.

　　The PowerPSoC architecture, as illustrated in the block diagrams, consists of five main areas: PSoC core, digital system, analog system, system resources, and power peripherals, which include power FETs, hysteretic controllers, current sense amplifiers, and PrISM/PWM modulators. Configurable global busing combines all of the device resources into a complete custom system. The PowerPSoC family of devices have 10-port I/Os that connect to the global digital and analog interconnects, providing access to eight digital blocks and six analog blocks.PowerPSoC is designed to operate at voltages from 7 V to 32 V, drive up to 1 ampere of current using internal MOSFET switches, and over 1 ampere with external MOSFETs.

　　This family of devices (CY8CLED0xD/G0y) combines up to four independent channels of constant current drivers. These drivers feature hysteretic controllers with the rogrammable System-on-Chip (PSoC) that contains an 8-bit microcontroller, configurable digital and analog peripherals, and embedded flash memory.

　　The CY8CLED0xD/G0y is the first product in the PowerPSoC family to integrate power peripherals to add further integration for your power electronics applications. The PowerPSoC family of intelligent power controller ICs are used in lighting applications that need traditional MCUs and discrete power electronics support. The power peripherals of the CY8CLED0xD/G0y include up to four 32 volt power MOSFETs with current ratings up to 1 ampere each. It also integrates gate drivers that enable applications to drive external MOSFETs for higher current and voltage capabilities. The controller is a programmable threshold hysteretic controller, with user-selectable feedback paths that uses the IC in current mode floating load buck, floating load buck-boost, and boost configurations.

　　PowerPSoC系列主要特性:

　　■ Integrated power peripherals

　　❐ Four internal 32 V low side N-Channel power FETs

　　• RDS(ON)– 0.5 Ω 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系列应用:

　　❐ 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

　　■ Device options

　　❐ 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

　　图1. PowerPSoC系列架构框图

　　图2. PowerPSoC系列数字系统框图

　　图3. PowerPSoC系列模拟系统框图

　　图4.LED照明框图:RGGB色彩混合配置成浮动负载降压转换器

　　图5.LED照明框图:RGBA色彩混合驱动外接MOSFET浮动负载降压转换器

　　图6.LED照明框图:单路升压驱动三路浮动负载降压通道

　　CY3267 PowerPSoC®照明评估套件

　　Thank you for your interest in the CY3267 PowerPSoC® Lighting Evaluation Kit. This kit enables designers to evaluate Cypress’s PowerPSoC family of devices and create scalable LED management solutions. The PowerPSoC devices feature high-performance power electronics including 1 A, 2-MHz power FETs, hysteretic controllers, current sense amplifiers, and PrISM™ and pulse-width modulators (PWM) to create a complete solution for LED power management.

　　The CY3267 PowerPSoC Lighting Evaluation Kit demonstrates PowerPSoC’s ability to drive four LED channels (red, green, blue, and amber) at the desired color and brightness output.

　　Headers provided on the CY3267 Power EVK main board allow expanding the system to support external daughter cards with I2C capable interfaces. DALI and DMX512 daughter cards are examples of expandable cards, which can be used with this board.

　　The CY3267 PowerPSoC™ Lighting Evaluation Kit enables designers to evaluate Cypress’ PowerPSoC family of devices and demonstrates their ability to create scalable LED management solutions. The PowerPSoC devices feature high performance power electronics including 1A, 2 MHz power FETs, hysteretic controllers, current sense amplifiers, and PrISM™ modulators to create a complete solution for LED power management. Right out of the box, the CY3267 Kit can be used to evaluate PowerPSoC’s ability to drive 4 LED channels (Red, Green, Blue and Amber) at the desired color and brightness output.