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指标:
图5.评估板MB39C831-EVB-03框图
图6.评估板MB39C831-EVB-03充电模式太阳能收获连接(MPPT模式)
图7.评估板MB39C831-EVB-03恒压模式太阳能收获连接
图8.评估板MB39C831-EVB-03电路图
评估板MB39C831-EVB-03材料清单:
图9.评估板MB39C831-EVB-03 PCB设计图
详情请见:
和
002-08404_MB39C831_Ultra_Low_Voltage_Boost_Power_
Management_IC_for_Solar_Thermal_Energy_Harvesting_Datasheet.pdf
002-08406_MB39C831_Ultra_Low_Voltage_Boost_Power_
Management_IC_for_Solar_Thermal_Energy_Harvesting_Datasheet_Chinese.pdf
3512248-002-08720.pdf
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