MAX9790AETJ+ Maxim Integrated Products, MAX9790AETJ+ Datasheet - Page 2

• Manufacturer Part Number: MAX9790AETJ+
• Description: IC AMP AUDIO 2W STER AB 32TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9790AETJ+

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2W x 2 @ 4 Ohm; 100mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, Mute, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• For Use With: MAX9789AEVKIT+ - EVALUATION KIT FOR MAX9789A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Supply Voltage (V
GND to PGND, CPGND ......................................................±0.3V
CPV
HPR, HPL to GND ...............................................................±3.0V
Any Other Pin .............................................-0.3V to (V
Duration of OUT_+, OUT_- Short Circuit
Duration of Short Circuit between OUT_+, OUT_-
Duration of Short Circuit between HPR, HPL and GND,
Continuous Current (PV
Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
I
A
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
LDO_OUT
GENERAL
Supply Voltage
Headphone Supply Voltage
Quiescent Current
Shutdown Current
Bias Voltage
Shutdown to Full Operation
Gain Switching Time
Channel-to-Channel Gain
Tracking
SPEAKER AMPLIFIER
Output Power
Total Harmonic Distortion Plus
Noise
Power-Supply Rejection Ratio
VHP
CPV
to GND or PV
and LDO_OUT.........................................................Continuous
V
DD
SS
_______________________________________________________________________________________
SS
= PV
= 3.5dB), T
DD
or HPV
, C1N, V
to GND) ..................................................-0.3V to +6.0V
(MAX9789A only) = 0, C1 = C2 = C
DD
PARAMETER
DD
= CPV
SS
DD
..........................................................Continuous
A
DD
to GND......................................-6.0V to +0.3V
......................................................Continuous
= T
, PV
DD
MIN
DD
= HPV
DD
, OUT_+, OUT_-, PGND).............1.7A
to T
, HPV
MAX
DD
DD
= LDO_EN (MAX9789A only) = +5V, GND = PGND = CPGND = LDO_SET (MAX9789A only) = 0V,
, unless otherwise noted. Typical values are at T
,
V
SYMBOL
DD
CPV
THD+N
HPV
I
V
PSRR
P
SHDN
t
I
SON
t
BIAS
, PV
OUT
DD
SW
DD
DD
DD
,
BIAS
Guaranteed by PSRR and LDO Line
Regulation Tests
Guaranteed by PSRR Test
SPKR_EN = V
THD+N = 1%, f = 1kHz,
T
R
R
V
f = 1kHz, 200mV
f = 10kHz, 200mV
= 1µF. R
A
L
L
DD
DD
= +25°C
= 8Ω, P
= 4Ω, P
1 (MAX9789A)
1 (MAX9790A)
= 4.5V to 5.5V, T
SPKR_EN
+ 0.3V)
L
1
0
0
OUT
OUT
= ∞, unless otherwise specified, GAIN1 = 0, GAIN2 = 5V (A
DD
CONDITIONS
= 1W, f = 1kHz
= 1W, f = 1kHz
P-P
, HP_EN = LDO_EN = GND
P-P
Continuous Current (CPV
Continuous Input Current (all other pins) .........................±20mA
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(Note 3)
A
(Note 3)
V
32-Pin Thin QFN Single-Layer Board
(derate 18.6mW/°C above +70°C) ..............................1489mW
32-Pin Thin QFN Multilayer Board
(derate 24.9 mW/°C above +70°C) .............................1990mW
DD,
= +25°C
0 (MAX9789A)
0 (MAX9790A)
HPV
HP_EN
DD
A
1
0
1
, LDO_OUT, HPR, HPL) .............................850mA
= +25°C.) (Note 1)
R
R
L
L
= 4Ω
= 8Ω
DD
, C1N, C1P, CPV
MIN
4.5
3.0
1.7
72
A
= +70°C)
0.002
0.004
±0.1
TYP
100
0.1
0.3
0.3
1.8
14
18
10
90
70
50
7
2
1
SS
MAX
, PV
0.16
5.5
5.5
1.9
13
29
40
6
6
SS
VSP
,
UNITS
= 10dB,
mA
mA
ms
µA
µA
dB
dB
µs
W
%
V
V
V