LM4839MT/NOPB National Semiconductor, LM4839MT/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM4839MT/NOPB
• Description: IC AMP AUDIO PWR 2.2W AB 28TSSOP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4839MT/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
• For Use With: LM4839MTBD - BOARD EVALUATION LM4839MT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM4839MT; *LM4839MT/NOPB; LM4839MT

Truth Table for Logic Inputs
Note 16: If system beep is detected on the Beep in pin (pin 11) and beep is fed to inputs, the system beep will be passed through the bridged amplifier regardless
of the logic of the Mute, HP sense, or DC Volume Control pins.
Typical Performance Characteristics
MTE Specific Characteristics
LM4839MTE
THD+N vs Output Power
LM4839MTE
THD+N vs Frequency
Note 17: These curves show the thermal dissipation ability of the LM4839MTE at different ambient temperatures given these conditions:
Mute
0
0
0
0
1
500LFPM + 2in
2in
1in
Not Attached: The part is not soldered down and is not forced-air cooled.
2in
2
2
2
on bottom: The part is soldered to a 2in
: The part is soldered to a 1in
: The part is soldered to a 2in
Mux Control
2
: The part is soldered to a 2in
X
0
0
1
1
DS200134-70
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2
2
, 1oz. copper plane.
, 1oz. copper plane.
HP Sense
X
0
1
0
1
2
, 1oz. copper plane that is on the bottom side of the PC board through 21 8 mil vias.
2
, 1 oz. copper plane with 500 linear feet per minute of forced-air flow across it.
LM4839MTE
THD+N vs Frequency
LM4839MTE
Power Dissipation vs Output Power
(Note 16)
Left In 1, Right In 1
Left In 1, Right In 1
Left In 2, Right In 2
Left In 2, Right In 2
Inputs Selected
-
7
DS200134-65
DS200134-71
Bridged Output
Vol. Adjustable
Vol. Adjustable
Muted
Muted
Muted
LM4839MTE
THD+N vs Output Power
LM4839MTE (Note 17)
Power Derating Curve
Single-Ended Output
Vol. Adjustable
Vol. Adjustable
Muted
DS200134-64
-
-
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DS200134-72