LM4991LDX National Semiconductor, LM4991LDX Datasheet - Page 3

• Manufacturer Part Number: LM4991LDX
• Manufacturer: National Semiconductor

Specifications of LM4991LDX

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 3x1@3OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.2@8Ohm@0.5W%
• 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: 64dB
• Single Supply Voltage (min): 2.2V
• 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

I
I
V
V
V
P
THD+N
PSRR
I
I
V
V
V
P
THD+N
Symbol
DD
SD
Symbol
DD
SD
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics V
The following specifications apply for V
Electrical Characteristics V
The following specifications apply for V
SDIH
SDIL
OS
o
SDIH
SDIL
OS
o
Supply Voltage
Supply Temperature
Input Voltage
Power Dissipation (Note 4)
ESD Susceptibility (Note 5)
ESD Susceptibility (Note 6)
Junction Temperature
Quiescent Power Supply
Current
Shutdown Current
Shutdown Voltage
Output Offset Voltage
Output Power
Total Harmonic
Distortion+Noise
Power Supply Rejection
Ratio
Quiescent Power Supply
Current
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Offset Voltage
Output Power
Total Harmonic
Distortion+Noise
Parameter
Parameter
−0.3V to V
DD
DD
= 5V and R
= 3V and R
Internally Limited
−65˚C to +150˚C
V
V
V
THD = 1% (max), f = 1kHz
THD+N = 10%, f = 1kHz
P
V
Input terminated with 10Ω,
f = 1kHz
V
V
V
THD = 1% (max), f = 1kHz
P
DD
DD
IN
IN
SHUTDOWN
O
RIPPLE
IN
IN
SHUTDOWN
O
LM4991LD, R
LM4991LD, R
LM4991, R
LM4991LD, R
LM4991LD, R
LM4991, R
R
R
= 0.5W, f = 1kHz
= 0.25W, f = 1kHz
DD
(Note 2)
L
L
= 0V, no Load
= 0V, R
= 0V, no Load
= 0V, R
= 4Ω
= 8Ω
= 5V
= 3V
to +0.3V
= 200mV sine p-p,
2000V
150˚C
L
L
200V
6.0V
= 8Ω unless otherwise specified. Limits apply for T
= 8Ω unless otherwise specified. Limits apply for T
L
L
= V
= V
Conditions
Conditions
L
L
= 8Ω
= 8Ω
(Notes 2, 3)
(Notes 2, 3)
= 8Ω
= 8Ω
DD
L
L
L
L
DD
= 3Ω (Note 10)
= 4Ω (Note 10)
= 3Ω (Note 10)
= 4Ω (Note 10)
3
Operating Ratings
Thermal Resistance
θ
θ
θ
θ
Temperature Range
Supply Voltage
JC
JA
JC
JA
T
MIN
(LD) (Note 9)
(LD)
(MA)
(MA)
≤ T
A
≤ T
MAX
(Note 7)
(Note 7)
Typical
Typical
2.38
600
425
0.1
1.5
1.3
2.1
1.3
2.5
1.5
0.1
1.1
0.9
64
3
4
5
3
3
4
5
0.2
0.1
LM4991
LM4991
(Note 8)
(Note 8)
Limit
Limit
2.0
0.9
2.0
10
35
55
35
7
7
7
A
A
−40˚C ≤ T
2.2V ≤ V
= 25˚C.
= 25˚C.
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mA (max)
mV (max)
mA (max)
mV (max)
A
µA (max)
µA (max)
DD
dB (min)
(Limits)
W (min)
(Limits)
140˚C/W
4.3˚C/W
≤ +85˚C
Units
Units
56˚C/W
35˚C/W
mW
≤ 5.5V
W
%
%
V
V
V
V