MAX9742ETX+ Maxim Integrated Products, MAX9742ETX+ Datasheet - Page 4

• 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
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V
150pF, C
68kΩ, R
4
Positive Supply Current
Negative Supply Current
Positive Supply Shutdown
Current
Negative Supply Shutdown
Current
Output Offset Voltage
IN_ Input Bias Current
Power-Supply Rejection Ratio
(Note 4)
Crosstalk
(Notes 5 and 6)
Continuous Output Power
Efficiency
(Notes 5, 6, and 7)
Total Harmonic Distortion
Plus Noise
Signal-to-Noise Ratio
Shutdown-to-Full Operation
Short-Circuit Output Current
Click-and-Pop
DD
_______________________________________________________________________________________
= 15V, V
L
FB_2
PARAMETER
= ∞, T
SS
= 10pF, C
A
= V
= T
SUB
MIN
BOOT
to T
= -15V, V
MAX
= 0.1µF, C
, unless otherwise noted. Typical values are at T
SYMBOL
THD+N
SHDN
PSRR
P
t
SNR
K
I
SON
I
I
OUT
DD
SC
SS
CP
= 3.3V, V
REGP
No load, output filter removed
No load, output filter removed
No load, V
No load, V
Output referred, affected by R
tolerances (Note 4)
V
V
V
V
L to R, R to L, R
f
THD+N = 10%
(Notes 5, 6, and 7) R
R
f
BW = 22Hz to 22kHz
(Notes 5, 6, and 7)
P
R
22kHz (Notes 5 and 6)
OUT_ shorted to V
P eak vol tag e, 32- sam p l es
p er second , A- w ei g hted
( N otes 4 and 8)
IN
IN
= C
DD
SS
DD
SS
OUT
L
L
= 1kHz,
= 8Ω, P
= 1kHz,
= 8Ω, BW = 22Hz to
= -10V to -20V
= -15V + 500mV
MID
= 10V to 20V
= 15V + 500mV
REGM
= 14W,
= LGND = 0V, C
SHDN
SHDN
OUT
= 1µF, R
= 15W, THD+N = 10%
L
= 0V
= 0V
= 8Ω, P
DD
CONDITIONS
IN_
P-P
P-P
R
R
V
V
or V
L
L
SS
L
SS
, f = 1kHz
= 30.1kΩ, R
, f = 1kHz
= 8Ω
= 8Ω, V
= 4Ω, V
OUT
= -18V
= -12V
SS
VDD
R
R
Unweighted
A-weighted
L
L
Into shutdown
Out of shutdown
= 1W, f = 1kHz
= 8Ω, P
= 4Ω, P
IN_
= C
DD
DD
and R
VSS
= 18V,
= 12V,
A
F1A
= +25°C.) (Note 2)
OUT
OUT
= 1000µF, C
F_
= 121kΩ, R
= 5W
= 10W
BYP
F1B
MIN
-36
2.9
-1
-1
= 562kΩ, R
= 1µF, C
0.001
-0.03
TYP
0.06
0.08
100
-23
-61
9.5
4.5
-36
-36
23
97
67
64
14
21
93
89
94
68
5
SFT
F2
= 0.22µF, C
= 681kΩ, R
MAX
+1
36
30
1
UNITS
FB_1
dBV
REF
mA
mA
mV
dB
dB
dB
ms
µA
µA
µA
W
%
%
A
=
=