LM4838MTEX National Semiconductor, LM4838MTEX Datasheet - Page 8

• Manufacturer Part Number: LM4838MTEX
• Manufacturer: National Semiconductor

Specifications of LM4838MTEX

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 1.5W
• Audio Amplifier Function: Headphone/Speaker
• Total Harmonic Distortion: 0.3@8Ohm@1W%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 74dB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Package Type: TSSOP EP
• Lead Free Status / Rohs Status: Not Compliant

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Typical Performance Characteristics
MTE Specific Characteristics
Note 19: These curves show the thermal dissipation ability of the LM4838MTE at different ambient temperatures given these conditions:
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
Power Dissipation vs Output Power
2
: The part is soldered to a 2in
THD+N vs Output Power
THD+N vs Output Power
LM4838MTE
LM4838MTE
LM4838MTE
2
2
, 1oz. copper plane.
, 1oz. copper plane.
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.
20013365
20013370
20013372
8
Power Derating Curve
LM4838MTE (Note 19)
THD+N vs Frequency
THD+N vs Frequency
LM4838MTE
LM4838MTE
20013364
20013371
20013373