LM4673TM National Semiconductor, LM4673TM Datasheet - Page 4

• Manufacturer Part Number: LM4673TM
• Description: AUDIO AMP, MONO CLASS D, POWERWISE
• Manufacturer: National Semiconductor

Specifications of LM4673TM

• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 2.65x1@4OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.03@8Ohm@0.1W%
• 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: 78dB
• Single Supply Voltage (min): 2.4V
• 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: 9
• Package Type: uSMD
• Amplifier Class: D
• No. Of Channels: 1
• Output Power: 2.65W
• Supply Voltage Range: 2.4V To 5.5V
• Thd + N: 0.03% @ 100mW, VDD=5V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Not Compliant

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|V
|I
|I
I
I
V
V
R
A
R
P
DD
SD
Symbol
IH
IL
SDIH
SDIL
V
O
OSD
SD
OS
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (Note 1)
Storage Temperature
Voltage at Any Input Pin
Power Dissipation (Note 3)
ESD Susceptibility, all other pins (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature (T
Electrical Characteristics
The following specifications apply for A
T
|
|
A
|
= 25°C.
Differential Output Offset Voltage
Logic High Input Current
Logic Low Input Current
Quiescent Power Supply Current
Shutdown Current
Shutdown voltage input high
Shutdown voltage input low
Output Impedance
Gain
Resistance from Shutdown Pin to
GND
Output Power
Parameter
JMAX
)
V
DD
+ 0.3V
V
= 2V/V (R
−65°C to +150°C
≥
Internally Limited
(Notes 1, 2)
V
≥
V
V
V
V
V
V
V
V
V
V
V
V
V
R
THD = 10% (max)
f = 1kHz, 22kHz BW
V
V
V
R
THD = 1% (max)
f = 1kHz, 22kHz BW
V
V
V
(Notes 1, 2)
GND - 0.3V
I
DD
DD
DD
IN
IN
IN
IN
IN
IN
SHUTDOWN
DD
SHUTDOWN
DD
DD
DD
DD
DD
DD
L
L
I
= 0V, A
= 15μH + 4Ω + 15μH
= 15μH + 4Ω + 15μH
= 150kΩ), R
= 0V, No Load, V
= 0V, No Load, V
= 0V, No Load, V
= 0V, R
= 0V, R
= 0V, R
= 2.4V to 5.0V
= 5.0V, V
= 5.0V, V
= 2.4V to 5.0V
= 5V
= 3.6V
= 2.5V
= 5V
= 3.6V
= 2.5V
150°C
2.0kV
200V
6.0V
V
L
L
L
= 0V
= 0.4V
= 2V/V,
Conditions
= 8Ω, V
= 8Ω, V
= 8Ω, V
I
I
= 5.5V
= –0.3V
L
4
= 15µH + 8Ω + 15µH unless otherwise specified. Limits apply for
Thermal Resistance
θ
θ
Soldering Information
See AN-1112 "microSMD Wafers Level Chip Scale
Package."
Operating Ratings
Temperature Range
Supply Voltage
DD
DD
DD
DD
DD
DD
T
= 5.0V
= 3.6V
= 2.4V
= 5.0V
= 3.6V
= 2.4V
JA
JA
MIN
(micro SMD)
(LLP)
≤
T
A
≤
T
MAX
300kΩ/R
(Note 6)
Typical
0.01
2.65
2.15
1.06
100
300
550
450
0.9
2.6
2.1
1.7
2.6
2.1
1.7
1.3
17
5
LM4673
I
(Notes 1, 2)
(Notes 7, 8)
270kΩ/R
330kΩ/R
Limit
3.75
100
2.9
2.3
1.4
0.4
5
1
−40°C
2.4V
I
I
≤
≤
V
T
V/V (max)
99.1°C/W
DD
mV (max)
mA (max)
mA (max)
V/V (min)
μA (max)
μA (max)
μA (max)
(Limits)
A
V (max)
V (min)
73°C/W
Units
≤
≤
mW
mW
mA
kΩ
kΩ
W
W
W
W
85°C
5.5V