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STA333IS Datasheet(PDF) 14 Page - STMicroelectronics

Part # STA333IS
Description  100 dB SNR and dynamic range
PDF  43 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA333IS Datasheet(HTML) 14 Page - STMicroelectronics

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Electrical specifications
STA333IS
14/43
DocID022855 Rev 3
3.6
Power-off sequence
The power-off sequence shown in Figure 3 below ensures a pop-free turn-off.
Figure 3. Power-off sequence
3.7
Testing
Figure 4. Test circuit
Figure 5. Current deadtime test circuit
Don’t care
Don’t care
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FE
Don’t care
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FE
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No specific VCC and VDD_DIG turn-off sequence is required
VCC
VDD_DIG
XTI
Mute
Bit EAPD
Register 0x05
Register 0x07
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
Ω
+
-
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
Ω
Q2
OUTB
)
B
(
n
i
T
D
)
B
(
t
u
o
T
D
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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