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LM4680 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM4680
Description  10W High-Efficiency Mono BTL Audio Power Amplifier
PDF  11 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4680 Datasheet(HTML) 4 Page - National Semiconductor (TI)

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Note 1: All voltages are measured with respect to the GND pin unless otherwise specified.
Note 2: 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 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature TA. The maximum
allowable power dissipation is PDMAX =(TJMAX −TA)/θJA or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4680 typical application
(shown in Figure 1) with VDD = 12V, RL =8Ω stereo operation, the total power dissipation is 900mW. θJA = 40˚C/W
Note 4: Human body model, 100pF discharged through a 1.5k
Ω resistor.
Note 5: Machine model, 220pF – 240pF discharged through all pins.
Note 6: Typicals are measured at 25˚C and represent the parametric norm.
Note 7: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8: Datasheets min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9: Shutdown current is measured in a normal room environment. The SHUTDOWN pin should be driven as close as possible to GND for minimum shutdown
current.
Note 10: Please refer to “Under Voltage Protection” on page 8 under “General Features.”
Typical Performance Characteristics
THD+N vs Frequency
V
DD = 9V, RL =8
Ω,P
O =1W
THD+N vs Frequency
V
DD = 12V, RL =8
Ω,P
O =1W
20095806
20095807
THD+N vs Frequency
V
DD = 14V, RL =8
Ω,P
O =1W
THD+N vs Output Power
R
L =8
Ω,V
DD = 9V, f = 1kHz
20095808
20095809
www.national.com
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