原标题：Cypress MB39C831太阳能和热能能量收获电源管理方案

　　cypress公司的MB39C831是超低电压升压太阳能和热能能量收获电源管理集成电路,包括根据太阳能最大功率跟踪(MPPT)来控制DC/DC转换器输出和对锂电池安全充电保护功能,输入电压0.3V-4.75V,输出电压3.0V-5.0V,最低起动电压0.35V,主要用在太阳能收获,锂电池太阳能充电器,手持音频播放器,手机,电子书,电子词典,无线遥控器和传感器节点.本文介绍了MB39C831主要特性,框图和应用电路,以及评估板MB39C831-EVB-03主要指标,框图,应用连接图,以及电路图,材料清单和PCB设计图.

　　The MB39C831 is the high-efficiency synchronous rectification boost DC/DC converter IC which efficiently supplies energy gettingfrom the solar cell with the single cell or multiple cells, or from the thermoelectric generator (TEG) to the Li-ion battery.

　　It contains the function to control the DC/DC converter output following the maximum power point of the solar cell (MPPT:

　　Maximum Power Point Tracking) and the protection function to charge the Li-ion battery safely.

　　It is possible to start-up from 0.35 V using the low-voltage process and adapts the applications which the single cell solar cell istreated as the input.

　　MB39C831主要特性:

　　 Operation input voltage range : 0.3 V to 4.75 V

　　 Output voltage adjustment range : 3.0 V to 5.0 V

　　 Minimum input voltage at start-up : 0.35 V

　　 Quiescent Current (No load) : 41 μA

　　 Input peak current limit : 200 mA

　　 Built-in MPPT

　　 Charge voltage to the Li-ion battery/current protection function built in

　　 Improvement of the efficiency during the low-output power according to the auto PFM/PWM switching mode

　　MB39C831应用:

　　 Solar energy harvesting

　　 Thermal energy harvesting

　　 Li-ion battery using the single cell or multiple cells ’solar cell/Super Capacitor Charger

　　 Portable audio players

　　 Cellular phone

　　 eBook

　　 Electronic dictionary

　　 Wireless remote controllers

　　 Sensor node

　　图1.MB39C831框图

　　图2.MB39C831应用电路图:恒压模式(MPPT_ENA=L,ENA=H)

　　图3.MB39C831应用电路图:充电模式(MPPT_ENA=H,ENA=H)

　　评估板MB39C831-EVB-03

　　The MB39C831-EVB-03 is the evaluation board for the energy harvesting (Power Management) IC, MB39C831. This evaluation board is capable of accepting solar or thermal electric power source.

　　图4.评估板MB39C831-EVB-03外形图

　　评估板MB39C831-EVB-03材料清单:

　　详情请见:

002-08404_MB39C831_Ultra_Low_Voltage_Boost_Power_.pdf

002-08406_MB39C831_Ultra_Low_Voltage_Boost_Power_.pdf

3512248-002-08720.pdf.pdf