TPA0233
2-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS278D – JANUARY 2000 – REVISED NOVEMBER 2002
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
6
3.0
THD+N = 1%
f = 1 kHz
Mode = Mono
AV = 8 dB
RL = 4
Ω
RL = 8
Ω
OUTPUT POWER
vs
SUPPLY VOLTAGE
5
I DD – Supply Current – mA
PO – Output Power – W
5.5
2.5
4
TA = 25
°C
2.0
3
1.5
2
Bypass = VDD/2 VDC
VDD From Low-to-High Level
Mode = Stereo
RL = Open
3.0
3.5
4.0
4.5
VDD – Supply Voltage – V
5.0
1.0
1
0.5
0
2.5
0.0
3.0
3.5
4.0
4.5
5.0
VDD – Supply Voltage – V
5.5
Figure 3
OUTPUT POWER
vs
SUPPLY VOLTAGE
500
THD+N = 1%
f = 1 kHz
Mode = Stereo
AV = 2 dB
RL = 8
Ω
300
2.5
Figure 4
OUTPUT POWER
vs
LOAD RESISTANCE
THD+N = 1%
f = 1 kHz
Mode = Mono
AV = 8 dB
400
PO – Output Power – mW
2.0
PO – Output Power – W
1.5
200
RL = 32
Ω
100
1.0
VDD = 5 V
0.5
VDD = 3 V
0
3.0
0.0
3.5
4.0
4.5
5.0
5.5
0
10
VDD – Supply Voltage – V
20
30
40
50
RL – Load Resistance –
Ω
60
Figure 5
Figure 6
6
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
