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LM4880 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM4880
Description  Dual 250 mW Audio Power Amplifier with Shutdown Mode
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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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)
3500V
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.
Thermal Resistance
θ
JC (DIP)
37˚C/W
θ
JA (DIP)
107˚C/W
θ
JC (SO)
35˚C/W
θ
JA (SO)
170˚C/W
Operating Ratings
Temperature Range
T
MIN≤TA≤TMAX
−40˚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 unless otherwise specified. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
LM4880
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
IN=0V, IO=0A
3.6
6.0
mA
(max)
I
SD
Shutdown Current
V
PIN5=VDD
0.7
5
µA
(max)
V
OS
Output Offset Voltage
V
IN=0V
5
50
mV
(max)
P
O
Output Power
THD=0.1% (max); f=1 kHz;
R
L=8Ω
250
200
mW
(min)
R
L=32Ω
85
mW
THD+N=10%;f=1 kHz
R
L=8Ω
325
mW
R
L=32Ω
110
mW
THD+N
Total Harmonic Distortion+Noise
R
L=8Ω,PO=200 mW;
0.03
%
R
L=32Ω,PO=75 mW;
0.02
%
f=1 kHz
PSRR
Power Supply Rejection Ratio
C
B = 1.0 µF,
V
RIPPLE=200 mVrms, f = 100 Hz
50
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 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 LM4880, TJMAX = 150˚C,
and the typical junction-to-ambient thermal resistance is 170˚C/W for package M08A and 107˚C/W for package N08E.
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 National’s AOQL (Average Outgoing Quality Level).
www.national.com
3




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