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STWBC2-HP датащи(PDF) 48 Page - STMicroelectronics

номер детали STWBC2-HP
подробное описание детали  Digital controller for wireless battery charger transmitters
PDF  96 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STWBC2-HP датащи(HTML) 48 Page - STMicroelectronics

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Figure 51. BB-DCDC FSM state diagram overview
Note that some signals in the flow diagram may be not aligned with the RTL implementation.
2.2.7.11.1
FSM state overview
Here below are listed all the FSM states:
IDLE: enabling waiting state
CHECK: check feedback comparator and start a new cycle
REFRESH_GDB: refresh gate driver B
REFRESH_GDA: refresh gate driver A
PRECHARGE: charge the inductor for a fixed amount of time
CHARGE: charge the inductor for a variable time or up to max. peak current
PREDISCHARGE: discharge the inductor for fixed amount of time
DISCHARGE: discharge the inductor for a variable time
PROBE: probe the switching node to check inductor current reversal
2.2.7.11.2
Overcurrent case
When an overcurrent situation has been detected during the CHECK state, the charge and discharge timings are
updated systematically with a specific rule. The goal of this rule is to regulate the current information to stay at the
limit of overcurrent.
STWBC2-HP
Digital AFE functions
DS13825 - Rev 1.0
page 48/96



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