[原创] Cypress MB39C811太阳能或振动能量收获解决方案

Cypress公司的MB39C811是高效降压DC／DC转换器,集成了低损耗全波桥式整流器,静态电流1.5μA,VIN输入电压2.6V-23V,预设输出电压1.5V, 1.8V, 2.5V, 3.3V, 3.6V, 4.1V, 4.5V和5.0V,输出电流高达100mA,主要用在光能收获,电磁能量收获,无线HVAC传感器和单独使用的毫微瓦级降压稳压器.本文介绍了MB39C811主要特性,框图, 光电能量和振动能量收获应用电路, 评估板MB39C811-EVB-03指标,电路图,材料清单和PCB设计图.

 The MB39C811 is the high efficient buck (Power Management) DC／DC converter IC which adopts the all-wave bridge rectifier using the low-dissipation and the comparator system. It achieves the energy harvest solution for the energy source of the high output impedance such as the piezoelectric transducer. It is possible to select from eight preset output voltages and supply up to 100 mA of the output current.

MB39C811主要特性:

n Quiescent current (No load, Output in regulation): 1.5μA
n Quiescent current (VIN = 2.5V UVLO): 550nA
n Integrated Low Loss Full-Wave Bridge Rectifier
n VIN input voltage range: 2.6V to 23V
n Preset output voltage: 1.5V, 1.8V, 2.5V, 3.3V, 3.6V, 4.1V, 4.5V, 5.0V
n Output current: Up to 100mA
n Protection functions
n Shunt for input protection: VIN ≥ 21V, Up to 100mA Pull-down
n Over current limit ..

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