STA7360_11 Datasheet, PDF (1/28 Pages) STMicroelectronics – 20 W bridge/stereo audio amplifier with clipping detector

STA7360
20 W bridge/stereo audio amplifier with clipping detector
Features
■ Very few external components
■ No boucherot cells
■ No bootstrap capacitors
■ High output power
■ No switch-on/off noise
■ Very low standby current
■ Fixed gain (20 db stereo)
■ Programmable turn-on delay
■ Clipping detector
■ Standby function
■ Protections
– Output AC-DC short-circuit to ground and
to supply voltage
– Highly inductive loads
– Loudspeaker protection
– Overrating chip temperature
– ESD protection
MULTIWATT11V
Description
The STA7360 is a class-AB audio power amplifier
in the Multiwatt^® package.Thanks to the fully
complementary PNP/NPN output configuration,
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 short-circuit protection system
prevents spurious intervention with highly
inductive loads.
The device provides a circuit for the detection of
clipping in the output stages. The output, an open
collector, is able to drive systems with automatic
volume control.
Table 1. Device summary
Order code
Package
STA7360
Multiwatt11V
Packing
Tube
Figure 1.
Application circuit
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
December 2011
Doc ID 9814 Rev 4
1/28
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