TDA2005S STMicroelectronics, TDA2005S Datasheet - Page 22

• Manufacturer Part Number: TDA2005S
• Description: IC AMP AUDIO PWR 12W MULTIWATT11
• Manufacturer: STMicroelectronics
• Type: Class Br

Specifications of TDA2005S

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 12W x 2 @ 2 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: Short-Circuit and Thermal Protection
• Mounting Type: Through Hole
• Package / Case: Multiwatt-11 (Vertical, Bent and Staggered Leads)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Application information
4.1.7
4.1.8
22/25
Figure 37. Maximum allowable power dissipa-
Figure 39. Output power and drain current vs.
(W)
P
8
6
4
2
0
o
12
P
(W)
20
16
8
24
4
32
28
0
tot
-50
tion vs. ambient temperature
Thermal shut-down
The presence of a thermal limiting circuit offers the following advantages:
1.
2.
The maximum allowable power dissipation depends upon the size of the external heatsink
(i.e. its thermal resistance);
temperature for different thermal resistance.
Loudspeaker protection
The circuit offers loudspeaker protection during short circuit for one wire to ground.
case temperature (R
40
an overload on the output (even if it is permanent), or an excessive ambient
temperature can be easily withstood.
the heatsink can have a smaller factor of safety compared with that of a conventional
circuit. There is no device damage in the case of excessive junction temperature : all
that happens is that P
0
P
I
d
o
80
50
120
100
V
R
f = 1 kHz
L
160
S
L
= 3.2 Ω)
= 13.2V
= 3.2Ω
T
T
o
amb
case
Figure 37
(and therefore P
(˚C)
(˚C)
1.2
0.9
0.6
0.3
Doc ID 1451 Rev 4
I
(A)
d
shows the power dissipation as a function of ambient
Figure 38. Output power and drain current vs.
tot
(W)
16
12
P
8
4
0
) and Id are reduced.
o
case temperature (R
40
P
I
d
o
80
120
V
R
f = 1 kHz
L
S
L
160
= 4Ω
= 14.4V
= 4 Ω)
T
case
TDA2005
(˚C)
1.2
0.9
0.6
0.3
I
(A)
d