STA559BWQS13TR STMICROELECTRONICS [STMicroelectronics], STA559BWQS13TR Datasheet - Page 18
STA559BWQS13TR
Manufacturer Part Number
STA559BWQS13TR
Description
5-V, 2-A, 2.1-channel high-efficiency digital audio system with QSound QHD
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.STA559BWQS13TR.pdf
(66 pages)
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Electrical specifications
3.5
3.5.1
18/66
Testing
Functional pin status
Table 8.
Figure 3.
Figure 4.
PWRDN
PWRDN
TWARN
TWARN
EAPD
EAPD
Pin name
DTin(A)
Duty cycle=A
INA
23
23
20
20
19
19
Functional pin status
Test circuit 1
Test circuit 2
Duty cycle = 50%
Pin #
M58
M57
High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))
Duty cycle A and B: Fixed to have DC output current of 4A in the direction shown in figure
Low current dead time = MAX(DTr,DTf)
INxY
Q1
Q3
0
1
Logic value
0
1
0
1
OUTA
Iout=1A
DTout(A)
M58
M57
L67 10µ
470nF
C69
gnd
Low absorption
Normal operation
From external power stage is indicated a temperature
warning.
Normal operation
Low absorption for power stage. All internal regulators are
switched off.
Normal operation
+Vcc
OUTxY
C71 470nF
Rload=4Ω
+V
CC
OUTxY
470nF
L68 10µ
C70
DTr
R 8Ω
DTout(B)
Iout=1A
IC status
DTf
+
-
OUTB
vdc = Vcc/2
V67 =
D03AU1458
Q2
Q4
t
Vcc
(3/4)Vcc
(1/2)Vcc
(1/4)Vcc
M64
M63
STA559BWQS
D06AU1649
Duty cycle=B
INB
DTin(B)
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