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STA333IS датащи(PDF) 14 Page - STMicroelectronics

номер детали STA333IS
подробное описание детали  100 dB SNR and dynamic range
PDF  43 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA333IS датащи(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
Don’t care
FE
Don’t care
Don’t care
Don’t care
Don’t care
Don’t care
FE
Don’t care
Don’t care
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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