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STA333W13TR Datasheet(PDF) 11 Page - STMicroelectronics

Part # STA333W13TR
Description  2-channel high-efficiency digital audio system
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA333W13TR Datasheet(HTML) 11 Page - STMicroelectronics

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STA333W
Testing
11/42
4
Testing
Figure 3.
Test circuit
Figure 4.
Current dead time test circuit
Low current dead time = MAX(DTr,DTf)
OUTxY
Vcc
(3/4)Vcc
(1/2)Vcc
(1/4)Vcc
t
DTf
DTr
Duty cycle = 50%
INxY
OUTxY
gnd
+Vcc
M58
M57
R 8
+
-
V67 =
vdc = Vcc/2
D03AU1458
High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))
+VCC
Rload=8
Q2
OUTB
DTout(B)
DTin(B)
DTout(A)
C71 470nF
C70
470nF
C69
470nF
Iout=4A
Iout=4A
Q4
Q1
Q3
M64
INB
M63
D03AU1517
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 22
µ
L67 22
µ
OUTA
Lout = 1.5 A
Lout = 1.5 A


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