Cypress PowerPSoC智能LED驱动方案
Cypress公司的PowerPSoC智能LED驱动器系列包括CY8CLED04G01, CY8CLED03G01, CY8CLED03D01, CY8CLED03D02, Y8CLED04D01和 CY8CLED04D02等六种器件. PowerPSoC系列集成了可编程的系统级芯片和业界最好的功率电子控制器以及开关器件,可以替代传统的MCU,系统IC和众多的分立器件. PowerPSoC具有高性能的功率电子特性,包括1A 2MHz功率FET, 滞后控制器,电流检测放大器,和PrISM/PWM调制器,从而组成完整的LED电源管理的解决方案.广泛应用在舞台LED照明,建筑LED照明,通用LED照明,汽车和救护车LED照明,风景区LED照明,显示器LED照明和信号LED照明等.本文介绍了PowerPSoC系列主要特性, 架构方框图, 逻辑方框图以及具有RGGB混色配置的LED照明应用框图, 具有RGBA混色驱动外接MOSFET的LED照明应用框图以及单路升压驱动三个浮动负载降压通路的LED照明应用框图.PowerPSoC Intelligent LED Driver
CY8CLED04G01, CY8CLED03G01, CY8CLED03D01, CY8CLED03D02, Y8CLED04D01, CY8CLED04D02 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 1A 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 the user to create customized peripheral configurations that match the requirements of each individual application. Additionally, the device includes a fast 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, comprises 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 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.
The CY8CLED04D0X 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 CY8CLED04D0X include four 32V power MOSFETs with current ratings up to 1A 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, boost, and floating load buck/boost configurations.
PowerPSoC系列主要特性:
Integrated power peripherals
Four internal 32V low side N-Channel power FETs
RDS(ON)– 0.5Ω for 1.0A 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 5V 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
DALI 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 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
16K Flash program storage 50,000 erase and write cycles
1K 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 5.0
Full featured, In-Circuit Emulator and Programmer
Full speed emulation
Complex breakpoint structure
128 kBytes trace memory
Visual embedded design
LED based express drivers
Binning compensation
Temperature feedback
PowerPSoC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 0.5A and 1.0A options
Four external gate drivers
Built-in switching regulator
CY8CLED03D0x
Three internal FETs with 0.5A and 1.0A options
Three external gate drivers
Built-in switching regulator
CY8CLED04G01
Four external gate drivers
Built-in switching regulator
CY8CLED03G01
Three external gate drivers
Built-in switching regulator
56-pin QFN Package
图1.PowerPSoC架构方框图
图2.CY8CLED04D0x 逻辑方框图
图3. CY8CLED03D0x 逻辑方框图
图4. CY8CLED04G01 逻辑方框图
图5. CY8CLED03G01 逻辑方框图
图6. 具有RGGB混色配置的LED照明应用框图(浮动负载降压转换器)
图7. 具有RGBA混色驱动外接MOSFET的LED照明应用框图(浮动负载降压转换器)
图8. 单路升压驱动三个浮动负载降压通路的LED照明应用框图
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