LM4868LQX National Semiconductor, LM4868LQX Datasheet - Page 6

• Manufacturer Part Number: LM4868LQX
• Manufacturer: National Semiconductor

Specifications of LM4868LQX

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 3W
• Audio Amplifier Function: Headphone/Speaker
• Total Harmonic Distortion: 0.30%%
• 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: 67dB
• Single Supply Voltage (min): 2V
• 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: 24
• Package Type: LLP EP
• Lead Free Status / Rohs Status: Not Compliant

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Typical Performance Characteristics
MTE- and LQ- Specific Characteristics
Note 18: This curve shows the LM4868MTE’s thermal dissipation ability at different ambient temperatures given these conditions:
it. Board information - copper dimensions: 74x74mm, copper coverage: 100% (buried layer) and 12% (top/bottom layers), 16 vias under the exposed-DAP.
500LFPM + JEDEC board: The part is soldered to a 1S2P 20-lead exposed-DAP TSSOP test board with 500 linear feet per minute of forced-air flow across
500LFPM + 2.5in
2.5in
Not Attached: The part is not soldered down and is not forced-air cooled.
2
: The part is soldered to a 2.5in
Power Dissipation vs Power Output
2
: The part is soldered to a 2.5in
LM4868LQ, LM4868MTE
Power Derating Curve
LM4868LQ
2
, 1oz. copper plane.
2
, 1 oz. copper plane with 500 linear feet per minute of forced-air flow across it.
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6
(Continued)
Power Derating Curve
LM4868MTE (Note 18)
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