MAX9777ETI+ Maxim Integrated Products, MAX9777ETI+ Datasheet - Page 10

• Manufacturer Part Number: MAX9777ETI+
• Description: IC AMP AUDIO PWR 2.6W AB 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class ABr

Specifications of MAX9777ETI+

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.6W x 2 @ 4 Ohm; 200mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, I²C, Input Multiplexer, Mute, Shutdown, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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