STMicroelectronics 1.2 W fully differential audio power amplifier DEMOTS4995J DEMOTS4995J Ficha De Dados
Códigos do produto
DEMOTS4995J
Electrical characteristics
TS4995
12/26
Figure 26.
Output power vs. power supply
voltage
voltage
Figure 27.
Power derating curves
2,5
3,0
3,5
4,0
4,5
5,0
5,5
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
4
Ω
8
Ω
16
Ω
32
Ω
Cb = 1
μ
F
F = 1kHz
BW < 125 kHz
Tamb = 25
BW < 125 kHz
Tamb = 25
°
C
O
u
tp
ut
pow
er
at
1%
T
H
D
+
N
(
W
)
Vcc (V)
0
25
50
75
100
125
0.0
0.2
0.4
0.6
0.8
1.0
1.2
No Heat sink
Heat sink surface
≈
100mm
2
Flip-
C
hi
p Pa
ckage P
o
w
e
r D
issipat
ion (
W
)
Ambiant Temperature (
°
C)
Figure 28.
Output power vs. load resistance
Figure 29.
Power dissipation vs. output power
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Vcc=5.5V
Vcc=5V
Vcc=4.5V
Vcc=4V
Vcc=3.3V
O
u
tput
po
w
e
r (
W
)
Load Resistance (
Ω
)
THD+N = 1%
F = 1kHz
Cb = 1
F = 1kHz
Cb = 1
μ
F
BW < 125kHz
Tamb = 25
Tamb = 25
°
C
Vcc=2.6V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
RL=16
Ω
RL=8
Ω
Vcc=5V
F=1kHz
THD+N<1%
F=1kHz
THD+N<1%
RL=4
Ω
Power
Di
ssi
pat
ion (
W
)
Output Power (W)
Figure 30.
Power dissipation vs. output power Figure 31.
Power dissipation vs. output power
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.0
0.1
0.2
0.3
0.4
0.5
0.6
RL=4
Ω
RL=8
Ω
Vcc=3.3V
F=1kHz
THD+N<1%
F=1kHz
THD+N<1%
RL=16
Ω
Power
Di
ssi
pat
ion (
W
)
Output Power (W)
0.0
0.1
0.2
0.3
0.4
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
RL=4
Ω
RL=8
Ω
Vcc=2.6V
F=1kHz
THD+N<1%
F=1kHz
THD+N<1%
RL=16
Ω
Power
Di
ssi
pat
ion (
W
)
Output Power (W)