LM4868MT National Semiconductor, LM4868MT Datasheet - Page 6

• Manufacturer Part Number: LM4868MT
• Description: Output-Transient-Free Dual 2.1W Audio Amplifier Plus No Coupling Capacitor Stereo Headphone Function
• Manufacturer: National Semiconductor

www.national.com
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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(Continued)
Power Derating Curve
LM4868MTE (Note 18)
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