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SPV1050 데이터시트(PDF) 4 Page - STMicroelectronics

부품명 SPV1050
상세설명  Ultralow power energy harvester and battery charger
PDF  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPV1050 데이터시트(HTML) 4 Page - STMicroelectronics

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List of figures
SPV1050
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DocID025569 Rev 4
List of figures
Figure 1.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2.
Pin configuration (top through view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3.
Battery management section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 4.
Boost configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 5.
Boost startup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 6.
MPPT tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 7.
Triggering of VEOC (BATT pin floating) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 8.
Efficiency vs. input current - VOC = 1.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 9.
Efficiency vs. input current - VOC = 1.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 10.
Efficiency vs. input current - VOC = 2.0 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 11.
Efficiency vs. input current - VOC = 2.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 12.
Buck-boost configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 13.
Buck-boost startup (IIN = 5 µA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 14.
MPPT tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 15.
Efficiency vs. input current - VOC = 6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 16.
Efficiency vs. input current - VOC = 9 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 17.
Efficiency vs. input current - VOC = 12 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 18.
Efficiency vs. input current - VOC = 15 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 19.
MPPT setup circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 20.
Energy harvester equivalent circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 21.
Voltage vs. time at different C values and fixed current . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 22.
LDO1 turn on with 100 mA load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 23.
LDO2 turn on with 100 mA load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 24.
VFQFPN20 3 x 3 x 1 mm - 20-lead pitch 0.4 package outline . . . . . . . . . . . . . . . . . . . . . . 28
Figure 25.
Die form pad position (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 26.
Inductor current and input voltage waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33



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