STA7360 Datasheet, PDF (1/18 Pages) STMicroelectronics – 20W BRIDGE/STEREO AUDIO AMPLIFIER WITH CLIPPING DETECTOR

STA7360
20W BRIDGE/STEREO AUDIO AMPLIFIER
WITH CLIPPING DETECTOR
s VERY FEW EXTERNAL COMPONENTS
s NO BOUCHEROT CELLS
s NO BOOSTRAP CAPACITORS
s HIGH OUTPUT POWER
s NO SWITCH ON/OFF NOISE
s VERY LOW STAND-BY CURRENT
s FIXED GAIN (20dB STEREO)
s PROGRAMMABLE TURN-ON DELAY
s CLIPPING DETECTOR
s ST-BY FUNCTION
Protections:
s OUTPUT AC-DC SHORT CIRCUIT TO
GROUND AND TO SUPPLY VOLTAGE
s VERY INDUCTIVE LOADS
s LOUDSPEAKER PROTECTION
s OVERRATING CHIP TEMPERATURE
s ESD PROTECTION
DESCRIPTION
The STA7360 is a new technology class AB Audio
APPLICATION CIRCUIT
MULTIWATT11V
ORDERING NUMBER: STA7360
Power Amplifier in the Multiwatt® package.Thanks to
the fully complementary PNP/NPN output configura-
tion the high power performance of the STA7360 is
obtained without bootstrap capacitors.
A delayed turn-on mute circuit eliminates audible on/
off noise, and a novel short circuit protection system
prevents spurious intervention with highly inductive
loads.
The device provides a circuit for the detection of clip-
ping in the output stages. The output, an open collec-
tor is able to drive systems with automatic volume
control.
20K
C4
1µF
22µF C3
SVR
0.22µF C2
IN2(+)
0.22µF C1
IN
IN1(+)
220µF
C5
STAND-BY
11
7
5
1
2
3
CLIP DET ^S-GND
+V_S
100nF
C6
9
OUT2
8
RL
OUT1
10
4
6
P-GND
OUT BRIDGE
D00AU1213
September 2003
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