MAX9742ETX+ Maxim Integrated Products, MAX9742ETX+ Datasheet - Page 3

• 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

ELECTRICAL CHARACTERISTICS—Single-Supply, Single-Ended Output (continued)
(V
10kΩ, C
R
T
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V
150pF, C
68kΩ, R
Total Harmonic Distortion Plus
Noise
Signal-to-Noise Ratio
Half-Bridge Switch
On-Resistance
Switch Rise and Fall Times
IN_ Input Bias Current
MID Input Bias Current
Shutdown-to-Full Operation
Power-On to Full Operation
Thermal-Overload Threshold
Temperature
Short-Circuit Output Current
Click-and-Pop
DIGITAL INPUTS (SHDN) (Note 9)
Logic-Input Low Voltage
Logic-Input High Voltage
Input Leakage Current
P osi ti ve S up p l y V ol tag e Rang e
N eg ati ve S up p l y V ol tag e
Rang e
Positive Supply Mute Mode
Current
Negative Supply Mute Mode
Current
A
F1A
DD
DD
= +25°C.) (Note 2)
= 121kΩ, R
= 24V, V
= 15V, V
L
SFT
PARAMETER
PARAMETER
FB_2
= ∞, T
= 0.47µF, C
SS
SS
= 10pF, C
A
F1B
= V
= V
= T
Class D Amplifier with Differential Inputs
SUB
= 562kΩ, R
_______________________________________________________________________________________
SUB
MIN
BOOT
OUT
to T
= LGND = 0V, V
= -15V, V
MAX
= 1000µF, C
= 0.1µF, C
F2
, unless otherwise noted. Typical values are at T
SYMBOL
SYMBOL
R
THD+N
= 681kΩ, R
SHDN
DS(ON)
SNR
t
I
V
K
V
T
SON
V
MID
t
I
V
PU
SC
SH
DD
CP
SS
IH
IL
= 3.3V, V
REGP
SHDN
FB_1
Single-/Dual-Supply, Stereo 16W,
f
BW = 22Hz to 22kHz
(Notes 5, 6, and 7)
P
BW = 22Hz to 22kHz
(Notes 5 and 6)
No load (Note 4)
V
V
Junction temperature
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)
(Note 3)
(Note 3)
No load, V
No load, V
IN
REF
OUT
DD
SHDN
= C
= 150pF, C
= 3.3V, V
= 1kHz,
= 24V, no load
MID
= 68kΩ, R
REGM
= 9.5W, R
= 3.3V
= LGND = 0V, C
SFT
SFT
= 1µF, R
MID
FB_2
= 0V (outputs not switching)
= 0V (outputs not switching)
L
L
= 12V, C
= ∞, T
= 8Ω,
CONDITIONS
DD
CONDITIONS
= 10pF, C
IN_
or V
A
= 30.1kΩ, R
VDD
= T
SS
VDD
R
R
Unweighted
A-weighted
L
L
MIN
Into shutdown
Out of shutdown
= 8Ω, P
= 4Ω, P
= 660µF, C
BOOT
= C
to T
VSS
A
F1A
= 0.1µF, C
MAX
= +25°C.) (Note 2)
OUT
OUT
= 1000µF, C
= 121kΩ, R
, unless otherwise noted. Typical values are at
MID1
= 3.5W
= 5W
= 10µF, C
REGP
BYP
F1B
= C
MIN
MIN
2.9
2.4
-20
-12
10
-1
-1
= 562kΩ, R
= 1µF, C
MID2
REGM
= 10µF, R1 = R2 = R3 =
TYP
0.06
0.08
TYP
150
-38
-40
0.4
1.5
4.5
88
93
50
68
= 1µF, R
-8
8
SFT
F2
= 0.22µF, C
= 681kΩ, R
MAX
MAX
-10
0.7
0.4
+1
+1
20
11
50
IN_
= 30.1kΩ,
UNITS
UNITS
FB_1
dBV
mA
mA
dB
ms
µA
µA
µA
REF
ns
o
%
Ω
A
V
V
V
V
s
C
3
=
=