MAX9742ETX+ Maxim Integrated Products, MAX9742ETX+ Datasheet - Page 6

• Manufacturer Part Number: MAX9742ETX+
• Description: IC AMP AUDIO PWR 20.5W D 36TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class Dr

Specifications of MAX9742ETX+

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 20.5W x 2 @ 8 Ohm
• Voltage - Supply: 20 V ~ 40 V, ±10 V ~ 20 V
• Features: Depop, Differential Inputs, Mute, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 36-TQFN Exposed Pad
• Product: Class-D
• Output Power: 16 W
• Thd Plus Noise: 0.08 %
• Supply Current: 15 mA
• Maximum Power Dissipation: 2.86 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 4 Ohms
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Single-/Dual-Supply, Stereo 16W,
Class D Amplifier with Differential Inputs
6
(24V single-supply mode, ±15V dual-supply mode, both channels driven in phase, THD+N measurement bandwidth = 22Hz to
22kHz, T
test circuit component values.)
0.01
0.01
0.01
100
100
100
0.1
0.1
0.1
10
10
10
_______________________________________________________________________________________
1
1
1
0
0
0
SINGLE SUPPLY
V
f = 1kHz
SINGLE SUPPLY
V
f = 1kHz
DUAL SUPPLY
R
R
A
DD
DD
R
L
L
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
L
= 4Ω
TOTAL HARMONIC DISTORTION
R
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
= 4Ω
= +25°C, unless otherwise noted. See Figure 1 for test circuits, see Typical Application Circuits/Functional Diagrams for
= 8Ω
= 24V
L
= 40V
OUTPUT POWER PER CHANNEL (W)
OUTPUT POWER PER CHANNEL (W)
f = 1kHz
OUTPUT POWER PER CHANNEL (W)
5
= 8Ω
10
5
10
THERMALLY LIMITED
f = 100Hz
10
20
15
R
L
= 6Ω
THERMALLY
LIMITED
20
R
15
30
L
= 4Ω
R
L
25
= 6Ω
20
40
30
0.01
0.01
0.01
100
100
100
0.1
0.1
0.1
10
10
10
1
1
1
0
0
0
SINGLE SUPPLY
V
f = 1kHz
BTL
CONFIGURATION
V
R
f = 1kHz
SINGLE SUPPLY
V
R
DD
R
DD
L
DD
L
f = 1kHz
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
L
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
= 8Ω
TOTAL HARMONIC DISTORTION
= 8Ω
= 8Ω
= 32V
= 24V
= 24V
OUTPUT POWER PER CHANNEL (W)
OUTPUT POWER PER CHANNEL (W)
10
V
10
DD
OUTPUT POWER (W)
= 24V
5
f = 100Hz
20
20
R
L
= 4Ω
Typical Operating Characteristics
30
V
10
THERMALLY
LIMITED
DD
THERMALLY
LIMITED
30
= 36V
R
L
40
= 6Ω
40
50
15
0.01
0.01
0.01
100
100
100
0.1
0.1
0.1
10
10
10
1
1
1
0
0
0
SINGLE SUPPLY
V
f = 1kHz
DUAL SUPPLY
R
SINGLE SUPPLY
V
R
DD
R
L
DD
L
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
f = 1kHz
L
= 8Ω
= 4Ω
f = 1kHz
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
= 8Ω
= 36V
= 24V
OUTPUT POWER PER CHANNEL (W)
OUTPUT POWER PER CHANNEL (W)
OUTPUT POWER PER CHANNEL (W)
10
5
5
R
L
f = 100Hz
= 4Ω
20
10
10
f = 100Hz
THERMALLY
LIMITED
30
15
15
R
L
= 6Ω
40
20
20