STA506 STMicroelectronics, STA506 Datasheet - Page 6

• Manufacturer Part Number: STA506
• Description: Audio Amplifiers 40V 4.0A Half Bridge
• Manufacturer: STMicroelectronics

Specifications of STA506

• Product: Class-AB
• Output Power: 80 W
• Operating Supply Voltage: 12 V, 15 V, 18 V
• Supply Current: 50 mA
• Maximum Power Dissipation: 50000 mW
• Maximum Operating Temperature: + 70 C
• Audio Load Resistance: 8 Ohms
• Input Signal Type: Single
• Minimum Operating Temperature: 0 C
• Output Signal Type: Differential
• Supply Type: Single
• Supply Voltage (max): 36 V
• Supply Voltage (min): 10 V
• Output Type: 1-Channel Mono or 2-Channel Stereo
• Package / Case: PowerSO-38 Slug Up
• No. Of Channels: 4
• Supply Voltage Range: 10V To 36V
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +90°C
• Amplifier Case Style: PowerSO
• No. Of Pins: 36
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STA506
Figure 4. Test Circuit.
Figure 5.
Figure 6.
6/14
DTin(A)
Duty cycle=A
INA
Duty cycle = 50%
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 4.5A in the direction shown in figure
Low current dead time = MAX(DTr,DTf)
INxA
INxY
Q1
Q3
OUTA
Iout=4.5A
DTout(A)
M58
M57
L67 22µ
470nF
C69
gnd
+Vcc
Q1
Q3
OUTxA
OUTxY
GND
C71 470nF
Rload=8Ω
+V
+V
CC
CC
OUTxB
Q2
Q4
OUTxY
470nF
L68 22µ
C70
DTr
R 8Ω
D00AU1134
DTout(B)
Iout=4.5A
DTf
+
-
OUTB
vdc = Vcc/2
V67 =
Q2
Q4
D03AU1458
INxB
t
Vcc
(3/4)Vcc
(1/2)Vcc
(1/4)Vcc
M64
M63
D03AU1517
Duty cycle=B
INB
DTin(B)