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WM8351 Datasheet(PDF) 157 Page - Wolfson Microelectronics plc

Part # WM8351
Description  Wolfson AudioPlus??Stereo CODEC with Power Management
PDF  330 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8351 Datasheet(HTML) 157 Page - Wolfson Microelectronics plc

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Production Data
WM8351
w
PD, April 2012, Rev 4.5
157
Fast charging consists of two phases:
In the constant current phase, the WM8351 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 WM8351 regulates BATT to the target voltage. To achieve this, the WM8351 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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