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LM4861 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM4861
Description  1.1W 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)

LM4861 Datasheet(HTML) 3 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 (Note 3)
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.)
Infrared (15 sec.)
215˚C
220˚C
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering surface
mount devices.
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
+85˚C
Supply Voltage
2.0V
≤ V
DD
≤ 5.5V
Thermal Resistance
θ
JC (typ) — M08A
35˚C/W
θ
JA (typ) — M08A
140˚C/W
θ
JC (typ) — N08E
37˚C/W
θ
JA (typ) — N08E
107˚C/W
Electrical Characteristics (Note 1) (Note 2)
The following specifications apply for V
DD = 5V, unless otherwise specified. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4861
Units
(Limits)
Typical
Limit
(Note 6)
(Note 7)
V
DD
Supply Voltage
2.0
V (min)
5.5
V (max)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A (Note 8)
6.5
10.0
mA (max)
I
SD
Shutdown Current
V
pin1 =VDD
0.6
10.0
µA (max)
V
OS
Output Offset Voltage
V
IN = 0V
5.0
50.0
mV (max)
P
O
Output Power
THD = 1% (max);f=1kHz
1.1
1.0
W (min)
THD+N
Total Harmonic Distortion + Noise
P
O = 1Wrms; 20 Hz
≤ f ≤ 20 kHz
0.72
%
PSRR
Power Supply Rejection Ratio
V
DD = 4.9V to 5.1V
65
dB
Note 1: All voltages are measured with respect to the ground 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 the Absolute Maximum Ratings, whichever is lower. For the LM4861, TJMAX = 150˚C,
and the typical junction-to-ambient thermal resistance, when board mounted, is 140˚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 Nationai’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.
www.national.com
3


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