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LM4861 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM4861
Description  1.1W Audio Power Amplifier with Shutdown Mode
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4861 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 (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 ≤ TA ≤ TMAX
−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 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 LM4861, TJMAX = 150˚C,
and the typical junction-to-ambient thermal resistance, when board mounted, is 140˚C/W.
Note 4: Human body model, 100 pF discharged through a 1.5 k
Ω resistor.
Note 5: Machine Model, 220 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 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
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