TDA1553Q Просмотр технического описания (PDF) - Philips Electronics
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TDA1553Q
Philips Electronics
TDA1553Q Datasheet PDF : 10 Pages
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Philips Semiconductors
2 x 22 W BTL stereo car radio power
amplifier with loudspeaker protection
Product specification
TDA1553Q
PINNING
1 IP1
2 GND
3 VP1
4 OUT1A
5 GND1
6 OUT1B
7 OUT2A
input 1
ground (signal)
positive supply voltage 1
output 1A
power ground 1 (substrate)
output 1B
output 2A
8 GND2
9 OUT2B
10 VP2
11 M/SS
12 LSP
13 IP2
power ground 2 (substrate)
output 2B
positive supply voltage 2
mute/stand-by switch
loudspeaker protection
input 2
FUNCTIONAL DESCRIPTION
The TDA1553Q contains two identical amplifiers with differential input stages and can be used for bridge applications.
The gain of each amplifier is fixed at 26 dB. Special features of this device are:
Mute/stand-by switch
• low stand-by current (< 100 µA)
• low mute/stand-by switching current (low cost supply switch)
• mute facility.
Loudspeaker protection
When a short-circuit to ground is made, which forces a DC voltage across the loudspeaker of ≥ 1 V, a built-in protection
circuit becomes active and limits the DC voltage across the loudspeaker to ≤ 1 V. The delay time of the protection circuit
can be controlled by an external capacitor connected to pin 12.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
PARAMETER
Supply voltage
operating
non-operating
load dump protected
Non-repetitive peak output current
Repetitive peak output current
Storage temperature range
Junction temperature
AC and DC short-circuit-safe voltage
Energy handling capability at outputs
Reverse polarity
Total power dissipation
CONDITIONS
during 50 ms;
tr ≥ 2.5 ms
VP = 0 V
see Fig.2
SYMBOL
VP
VP
VP
IOSM
IORM
Tstg
Tj
VPSC
VPR
Ptot
MIN.
−
−
−
−
−
−55
−
−
−
−
−
MAX.
UNIT
18
V
30
V
45
V
6
A
4
A
+ 150
°C
150
°C
18
V
200
mJ
6
V
60
W
July 1994
4
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