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STA323WQS データシート(PDF) 21 Page - STMicroelectronics

部品番号 STA323WQS
部品情報  2.1-channel high-efficiency digital audio system with QSound QHD®
PDF  78 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA323WQS データシート(HTML) 21 Page - STMicroelectronics

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STA323WQS
Electrical specifications
21/78
Figure 12.
Test circuit 2
4.5
Power supply and control sequencing
Figure 13 shows the recommended power-up and power-down sequencing. The "time zero"
reference point is taken where VCC crosses the under voltage lockout threshold.
Figure 13.
Recommended power up and power down sequence
High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))
+VCC
Rload=4
Ω
Q2
OUTB
DTout(B)
DTin(B)
DTout(A)
C71 470nF
C70
470nF
C69
470nF
Iout=1.5A
Iout=1.5A
Q4
Q1
Q3
M64
INB
M63
D06AU1651
M58
INA
M57
DTin(A)
Duty cycle=A
Duty cycle=B
Duty cycle A and B: Fixed to have DC output current of 4A in the direction shown in figure
L68 10
µ
L67 10
µ
OUTA



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