LM4839MTE/NOPB National Semiconductor, LM4839MTE/NOPB Datasheet - Page 4

IC AMP AUDIO PWR 2.2W AB 28TSSOP

LM4839MTE/NOPB

Manufacturer Part Number
LM4839MTE/NOPB
Description
IC AMP AUDIO PWR 2.2W AB 28TSSOP
Manufacturer
National Semiconductor
Series
Boomer®r
Type
Class ABr
Datasheet

Specifications of LM4839MTE/NOPB

Output Type
2-Channel (Stereo) with Stereo Headphones
Max Output Power X Channels @ Load
2.2W x 2 @ 3 Ohm; 95mW x 2 @ 32 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
Bass Boost, Depop, Input Multiplexer, Mute, Shutdown, Thermal Protection, Volume Control
Mounting Type
Surface Mount
Package / Case
28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
For Use With
LM4839MTBD - BOARD EVALUATION LM4839MT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*LM4839MTE
*LM4839MTE/NOPB
LM4839MTE

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P
THD+N
PSRR
SNR
X
V
P
THD+N
PSRR
SNR
X
(Notes 7, 10)
The following specifications apply for V
O
talk
(Notes 7, 10)
The following specifications apply for V
OS
O
talk
Symbol
Symbol
Electrical Characteristics for Single-Ended Mode Operation
Electrical Characteristics for Bridged Mode Operation
Note 3: The
Note 4: The
through 21 8mil vias.
Note 5: The
Note 6: The
Note 7: All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical application as shown
in Figure 2.
Note 8: When driving 3
Note 9: When driving 4
Note 10: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 11: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
mounted, is 80˚C/W assuming the MTC28 package.
Note 12: Human body model, 100 pF discharged through a 1.5 k
Note 13: Machine Model, 220 pF–240 pF discharged through all pins.
Note 14: Typicals are measured at 25˚C and represent the parametric norm.
JA
JA
JA
JA
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Signal to Noise Ratio
Channel Separation
Output Offset Voltage
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Signal to Noise Ratio
Channel Separation
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 2in
given is for an MXA28A package whose exposed-DAP is soldered to a 2in
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 1in
given is for an MXA28A package whose exposed-DAP is not soldered to any copper.
loads from a 5V supply the LM4839MTE exposed DAP must be soldered to the circuit board and forced-air cooled.
loads from a 5V supply the LM4839MTE exposed DAP must be soldered to the circuit board.
Parameter
Parameter
DMAX
= (T
JMAX
− T
DD
DD
A
)/
= 5V and T
= 5V and T
JA
. For the LM4839MT, T
THD+N = 1.0%; f = 1kHz;
R
THD+N = 10%; f = 1 kHz; R
32
V
A
C
V
P
Filter
f=1kHz, C
V
THD + N = 1.0%; f=1kHz; R
(Note 8)
THD + N = 1.0%; f=1kHz; R
(Note 9)(Note 15)
THD = 1.5% (max);f = 1 kHz;
R
THD+N = 10%;f = 1 kHz; R
P
R
P
C
V
V
A-Wtd Filter
f=1kHz, C
OUT
VD
RIPPLE
OUT
IN
O
O
RIPPLE
DD
L
B
L
L
B
A
A
= 32
= 8
= 8 , A
= 1.0 µF, f =120 Hz,
= 1.0 µF, f = 120 Hz,
= 1W, 20 Hz
= 340 mW, R
resistor.
= 0V, No Load
= 25˚C unless otherwise noted.
= 1
= 25˚C unless otherwise noted.
= 5V, P
= 1V
=75 mW, R
= 200 mVrms
= 200 mVrms; R
B
B
RMS
VD
= 1.0 µF
= 1.0 µF
Conditions
Conditions
OUT
JMAX
4
= 2
, f=1kHz, R
<
= 1.1W, R
= 150˚C, and the typical junction-to-ambient thermal resistance, when board
L
L
f
= 32
= 32 , A-Wtd
<
2
20 kHz,
piece of 1 ounce printed circuit board copper on a bottom side layer
L
L
= 8
L
= 10k ,
L
L
L
L
= 8 ,
= 8
= 3
= 4
=
2
2
JMAX
piece of 1 ounce printed circuit board copper.
piece of 1 ounce printed circuit board copper.
,
JA
, and the ambient temperature T
(Note 14)
(Note 14)
Typical
Typical
0.065
102
2.2
1.1
1.5
0.3
1.0
85
95
58
65
74
93
70
2
LM4839
LM4839
(Note 15)
(Note 15)
Limit
Limit
±
1.0
50
A
. The maximum
mV (max)
(Limits)
(Limits)
W (min)
Units
Units
mW
mW
dB
dB
dB
dB
dB
dB
%
W
W
W
%
%

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