MAX9750AETI+ Maxim Integrated Products, MAX9750AETI+ Datasheet - Page 2

• Manufacturer Part Number: MAX9750AETI+
• Description: IC AMP AUDIO PWR 2.6W AB 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9750AETI+

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.6W x 2 @ 3 Ohm; 110mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
GND to PGND.....................................................................±0.3V
CPV
HPOUT_ to GND ....................................................................±3V
Any Other Pin .............................................-0.3V to (V
Duration of OUT_ Short Circuit to GND or PV
Duration of OUT_+ Short Circuit to OUT_- .................Continuous
Duration of HPOUT_ Short Circuit to GND,
Continuous Current (PV
Continuous Current (CPV
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
ELECTRICAL CHARACTERISTICS
(V
terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, V
T
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
GENERAL
Supply Voltage Range
Headphone Supply Voltage
Quiescent Supply Current
Shutdown Supply Current
Bias Voltage
Switching Time
Input Resistance
Turn-On Time
SPEAKER AMPLIFIER (HPS = GND)
Output Offset Voltage
Power-Supply Rejection Ratio
(Note 3)
A
DD
V
HPOUT_) .......................................................................850mA
= T
SS
_______________________________________________________________________________________
SS
= PV
MIN
, C1N, V
or HPV
to T
DD
PARAMETER
DD
MAX
= CPV
SS
.........................................................Continuous
DD
to GND .........................-6.0V to (GND + 0.3V)
, unless otherwise noted. Typical values are at T
, PV
DD
DD
= HPV
DD
DD
, OUT_, PGND) ...........................1.7A
, HPV
, C1N, C1P, CPV
DD
DD
= 5V, V
, CPV
V
SYMBOL
DD
CPV
HPV
I
V
PSRR
SHDN
t
V
t
SON
I
R
BIAS
, PV
DD
DD
SW
OS
GND
IN
DD
DD
DD
SS
to GND)..........+6V
DD
,
, V
........Continuous
= V
SS
Inferred from PSRR test
Inferred from PSRR test
HPS = GND, speaker mode, R
HPS = V
SHDN = GND
Gain or input switching
Amplifier inputs
(Note 2)
Measured
between OUT_+
and OUT_-,
T
PV
4.5V to 5.5V
(T
f = 1kHz, V
f = 10kHz, V
PGND
A
, HPV
A
DD
DD
= +25°C
= +25°C)
+ 0.3V)
or V
= V
DD
DD
,
DD
CPGND
RIPPLE
, headphone mode, R
RIPPLE
=
A
CONDITIONS
= +25°C.) (Note 1)
= 0V, SHDN = V
= 200mV
Continuous Input Current (All Other Pins) ........................±20mA
Continuous Power Dissipation (T
Junction-to-Case Thermal Resistance (θ
Junction Temperature ......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
= 200mV
MAX9750A/MAX9750B/
MAX9751/MAX9755
MAX9750C
MAX9750A/MAX9750B/
MAX9750C/MAX9751
MAX9755
28-Pin Thin QFN (derate 23.8mW/°C above +70°C) .1900mW
28-Pin Thin QFN ...........................................................24°C/W
MAX9750
MAX9751/MAX9755
P-P
P-P
L
= ∞
L
= ∞
DD
, C
BIAS
= 1µF, C1 = C2 = 1µF, speaker load
GAIN1
MIN
1.7
4.5
3.0
4.5
10
75
72
A
= V
= +70°C, multilayer board)
GAIN2
TYP
±0.4
0.2
1.8
14
10
20
25
±1
90
90
80
55
7
6
JC
)
= V
VOL
MAX
±15
5.5
5.5
1.9
8.0
29
13
30
±6
5
= V
GAIN
UNITS
mA
mV
ms
dB
µA
kΩ
µs
V
V
V
= 0V,