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WM8352 Scheda tecnica(PDF) 158 Page - Wolfson Microelectronics plc

Il numero della parte WM8352
Spiegazioni elettronici  Wolfson AudioPlus™ Stereo CODEC with Power Management
PDF  336 Pages
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Produttore elettronici  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8352 Scheda tecnica(HTML) 158 Page - Wolfson Microelectronics plc

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WM8352
Production Data
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PD, February 2011, Rev 4.4
158
Fast charging consists of two phases:
In the constant current phase, the WM8352 drives a programmable constant current into the battery
through the BATT pin. During this phase, the battery voltage rises monotonically until the battery
reaches the target voltage.
When the battery reaches the target voltage, the charger enters the constant voltage phase, in which
the WM8352 regulates BATT to the target voltage. To achieve this, the WM8352 adjusts the charge
current adaptively. The charge current decreases monotonically over time. Fast charging is disabled
when the current falls to a programmable ‘End of Charge’ threshold level.
Figure 77 A Typical Charge Cycle



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