LM4902LDX National Semiconductor, LM4902LDX Datasheet - Page 4

• Manufacturer Part Number: LM4902LDX
• Manufacturer: National Semiconductor

Specifications of LM4902LDX

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 0.675x1@8OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.4@8Ohm@400mW%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 70dB
• Single Supply Voltage (min): 2V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: LLP EP
• Lead Free Status / Rohs Status: Not Compliant

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I
I
V
P
THD+N
PSRR
DD
SD
Symbol
OS
O
Electrical Characteristics
The following specifications apply for V
25˚C
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 T
allowable power dissipation is P
150˚C. The typical junction-to-ambient thermal resistance, when board mounted, is 190˚C/W for package number MUA08A.
Note 4: Human body model, 100pF discharged through a 1.5k
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: The quiescent power supply current depends on the offset voltage when a practical load is connected to the amplifier.
Note 9: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 10: Unterminated input.
Note 11: 10
Quiescent Power Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
terminated input.
Parameter
DMAX
= (T
JMAX
− T
DD
A
)/
= 2.6V, for all available packages, unless otherwise specified. Limits apply for T
(Notes 1, 2)
JA
or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM4902, T
V
V
V
THD = 1% (max); f = 1kHz; R
P
20Hz
V
IN
PIN1
IN
O
RIPPLE
f = 217Hz (Note 11)
f = 1KHz (Note 11)
= 100 mWrms; A
resistor.
= 0V, I
= 0V
= V
f
= 200mV sine p-p
DD
O
20kHz, BW
= 0A (Note 8)
4
Conditions
VD
<
= 2; R
80kHz
L
L
= 8
= 8 ;
JMAX
,
JA
, and the ambient temperature T
(Note 6)
Typical
130
2.6
0.1
0.4
58
63
5
LM4902
(Notes 7,
Limit
2.0
9)
4
A
. The maximum
mA (max)
µA (max)
(Limits)
Units
mW
mV
JMAX
dB
%
A
=
=