STA326 STMicroelectronics, STA326 Datasheet - Page 12

• Manufacturer Part Number: STA326
• Description: DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
• Manufacturer: STMicroelectronics

Specifications of STA326

• Svhc: No SVHC (15-Dec-2010)
• No. Of Pins: 36
• Operating Temperature Range: -20°C To +85°C
• Supply Voltage Max: 36V
• Supply Voltage Min: 10V
• Termination T: RoHS Compliant
• Package / Case: PowerSO
• Interface: I2C
• Interface Type: I2C
• Rohs Compliant: Yes

Electrical specifications
12/57
Table 8.
Figure 6.
Figure 7.
I
I
V
t
P
P
Symbol
VCC
out-sh
pw-min
o
o
UV
DTin(A)
Duty cycle=A
Supply current from V
operation
(both channel switching)
Overcurrent protection
threshold (short circuit current
limit)
Undervoltage protection
threshold
Output minimum pulse width
Output power (refer to test
circuit
Output power (refer to test
circuit
INA
Power electrical characteristics (continued)
Test circuit 1
Test circuit 2
Duty cycle = 50%
M58
M57
Parameter
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
OUTA
Iout=1.5A
DTout(A)
CC
Doc ID 11531 Rev 3
M57
M58
in
L67 10µ
470nF
C69
gnd
+Vcc
Input pulse width = 50%
duty,
switching
frequency = 384 kHz,
no LC filters
-
-
No load
THD = 10%
R
R
THD = 1%
R
R
L
L
L
L
OUTxY
C71 470nF
= 4Ω, V
= 8Ω, V
= 4Ω, V
= 8Ω, V
Rload=4Ω
Test conditions
+V
CC
CC
CC
CC
CC
OUTxY
470nF
= 21 V
= 36 V
= 21 V
= 36 V
L68 10µ
C70
DTr
R 8 W
DTout(B)
Iout=1.5A
+
DTf
-
OUTB
-
4.5
-
70
-
-
-
-
vdc = Vcc/2
Min.
V67
Q2
Q4
t
(1/4)Vcc
(1/2)Vcc
(3/4)Vcc
Vcc
80
6
7
50
80
40
62
M64
M63
Typ.
D06AU1651
-
-
-
150
-
-
-
-
Duty cycle=B
Max.
INB
DTin(B)
STA326
mA
A
V
ns
W
W
Unit