Maxim Integrated MAX9778 - Manual (Page 10)

MAX9777/MAX9778
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
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Typical Operating Characteristics (continued)
(V DD = PV DD = 5V, GND = PGND = 0V, V SHDN = 5V, C BIAS = 1µF, T A = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(HEADPHONE MODE)
MAX9777/78 toc40
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.25 5.00 4.75
2
4
6
8
10
12
0
4.50 5.50
T A = +85 °C
T A = +25 °C
T A = -40 °C
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9777/78 toc42
OUTPUT POWER (W)
POWER DISSIPATION (W)
1.50 0.25 0.50 0.75 1.00 1.25
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
0
R
L
= 8 Ω
f = 1kHz
EXITING POWER-DOWN
(SPEAKER MODE)
MAX9777/78 toc43
100ms/div
OUT_+ AND OUT_-
1V/div
OUT_+ - OUT_-
1V/div
V DD
2V/div
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(HEADPHONE MODE)
MAX9777/78 toc40
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.25 5.00 4.75
2
4
6
8
10
12
0
4.50 5.50
T A = +85 °C
T A = +25 °C
T A = -40 °C