TPA6041A4 Datasheet, PDF (12/30 Pages) Texas Instruments – 2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPath™ STEREO HEADPHONE DRIVE AND REGULATOR

TPA6041A4
SLOS542 – AUGUST 2007
TYPICAL CHARACTERISTICS (continued)
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3.2
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
3.40
POWER DISSIPATION (SP)
vs
TOTAL OUTPUT POWER
V_DD = 5.5 V
V_DD = 5 V
V_DD = 4.5 V
Gain = 10 dB,
R_L = 4 W
1
2
3
4
5
6
P_O - Output Power - W
Figure 21.
REGULATOR OUTPUT VOLTAGE (LDO)
vs
SUPPLY VOLTAGE
3.38
3.36
3.34
I_L = -10 mA
I_L = -1 mA
3.32
3.30
3.28
I_L = -50 mA
3.26
I_L = -120 mA
3.24
3.22
3.20
4.5 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5
V_DD - V
Figure 23.
POWER DISSIPATION (SP)
vs
TOTAL OUTPUT POWER
1.6
1.4
1.2
V_DD = 5.5 V
1
V_DD = 5 V
0.8
V_DD = 4.5 V
0.6
0.4
0.2
0
0 0.5
Gain = 10 dB,
R_L = 8 W
1 1.5 2 2.5 3 3.5 4
P_O - Output Power - W
Figure 22.
SUPPLY VOLTAGE (LDO)
vs
LOAD CURRENT
3.40
3.36
3.32
V_DD = 5 V _{VDD = 5.5 V}
3.28
3.24
V_DD = 4.5 V
3.20
3.16
3.12
3.08
3.04
3
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2
I_L - Load Current - A
Figure 24.
12
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