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LM4860 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM4860
Description  Series 1W Audio Power Amplifier with Shutdown Mode
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4860 Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
−65˚C to +150˚C
Input Voltage
−0.3V to V
DD + 0.3V
Power Dissipation
Internally limited
ESD Susceptibility (Note 4)
3000V
ESD Susceptibility (Note 5)
250V
Junction Temperature
150˚C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See AN-450
“Surface Mounting and their Effects on Product
Reliability” for other methods of soldering surface mount de-
vices.
Operating Ratings
Temperature Range
T
MIN ≤ TA ≤ TMAX
−20˚C
≤ T
A ≤ +85˚C
Supply Voltage
2.7V
≤ V
DD ≤ 5.5V
Electrical Characteristics
(Notes 1, 2) The following specifications apply for V
DD = 5V, RL = 8Ω unless otherwise specified. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4860
Units
(Limits)
Typical
Limit
(Note 6)
(Note 7)
V
DD
Supply Voltage
2.7
V (min)
5.5
V (max)
I
DD
Quiescent Power Supply Current
V
O = 0V, IO = 0A (Note 8)
7.0
15.0
mA (max)
I
SD
Shutdown Current
V
pin2 = VDD (Note 9)
0.6
µA
V
OS
Output Offset Voltage
V
IN = 0V
5.0
50.0
mV (max)
P
O
Output Power
THD+N = 1% (max); f = 1 kHz
1.15
1.0
W (min)
THD+N
Total Harmonic Distortion + Noise
P
O = 1 Wrms; 20 Hz ≤ f ≤ 20 kHz
0.72
%
PSRR
Power Supply Rejection Ratio
V
DD = 4.9V to 5.1V
65
dB
V
od
Output Dropout Voltage
V
IN = 0V to 5V, Vod = (Vo1 −Vo2)
0.6
1.0
V (max)
V
IH
HP-IN High Input Voltage
HP-SENSE = 0V to 4V
2.5
V
V
IL
HP-IN Low Input Voltage
HP-SENSE = 4V to 0V
2.5
V
V
OH
HP-SENSE High Output Voltage
I
O = 500 µA
2.8
2.5
V (min)
V
OL
HP-SENSE Low Output Voltage
I
O = −500 µA
0.2
0.8
V (max)
Note 1: All voltages are measured with respect to the ground pins, 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 func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar-
antee 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 the Absolute Maximum Ratings, whichever is lower. For the LM4860, TJMAX =
+150˚C, and the typical junction-to-ambient thermal resistance, when board mounted, is 100˚C/W.
Note 4: Human body model, 100 pF discharged through a 1.5 k
Ω resistor.
Note 5: Machine Model, 200 pF–240 pF 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: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
Note 9: Shutdown current has a wide distribution. For Power Management sensitive designs, contact your local National Semiconductor Sales Office.
www.national.com
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