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SPV1040 Folha de dados(PDF) 12 Page - STMicroelectronics

Nome de Peças SPV1040
Descrição Electrónicos  High efficiency solar battery charger with embedded MPPT
PDF  15 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPV1040 Folha de dados(HTML) 12 Page - STMicroelectronics

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Detailed description
SPV1040
12/15
Doc ID 18080 Rev 3
Figure 14.
MPPT working principle
6.11
Burst mode
When the output voltage reaches the battery charge voltage, the MPP-SET voltage drops
below 450 mV, or the output current reaches the output maximum current limit, the duty
cycle D drops down to 10% and the device evolves from Operating mode to Burst mode.
The converter no longer works at constant frequency, but at frequencies gradually lower (1
TON over 1 PWM cycle, 1 TON over 2 PWM cycles, …,1 TON over 16 PWM cycles) prior to
entering Sleep-IN mode.
6.12
Sleep-IN mode
Once Sleep-IN mode has been entered, no current is provided to the load. The device exits
this mode once the cause which forced it into this state is no longer present.



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