原标题：Cypress CY8CLED04DOCD1 MPPT太阳能充电控制方案

　　Cypress公司的PowerPSoC 智能LED驱动器系列采用可编程的系统级芯片(SoC)技术,可替代传统的MCU,系统IC和周围的大量分立元件,集成了1A 2MHz 功率FET,滞后控制器,电流检测放大器以及PrISM/PWM调制器.本文介绍了PowerPSoC架构方框图, CY8CLED04D0x逻辑方框图和主要特性, MPPT太阳能充电控制器方框图与指标, MPPT太阳能充电控制板方框图和电路图以及所用材料清单(BOM).

　　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.

　　CY8CLED04DOCD1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

　　❐ Pullup, 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 and 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 and Programmer

　　❐ Full speed emulation

　　❐ Complex breakpoint structure

　　❐ 128 kBytes trace memory

　　■CY8CLED04DOCD1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架构方框图

　　图2.CY8CLED04D0x逻辑方框图

　　Cypress’ MPPT Solar Charge Controller is a battery charger and load controller for standalone PV (photovoltaic) systems. This controller features a smart tracking algorithm that maximizes energy harvest from solar panels. The controller also prevents over charge or deep discharge. It provides automatic load control for the external load connected to the controller board.

　　This optimized battery charging process increases battery life, minimizes battery maintenance, and improves system performance.

　　Maximum power point tracking, referred to as MPPT, is an electronic system that operates the photovoltaic modules to produce maximum power. MPPT varies the electrical operating point of the modules and enables them to deliver maximum available power. The additional power harvested increases the current available for battery charging. MPPT can be used in conjunction with a mechanical tracking system, but the two systems are completely different.

　　MPPT太阳能充电控制器指标:

　　图3.MPPT太阳能充电控制器方框图

　　MPPT太阳能充电控制板

　　图4.MPPT太阳能充电控制板外形图