LM4674ATLX/NOPB National Semiconductor, LM4674ATLX/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM4674ATLX/NOPB
• Description: IC AMP AUDIO PWR 2.5W D 16USMD
• Manufacturer: National Semiconductor
• Series: Boomer®, PowerWise®r
• Type: Class Dr

Specifications of LM4674ATLX/NOPB

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 2.5W x 2 @ 4 Ohm
• Voltage - Supply: 2.4 V ~ 5.5 V
• Features: Depop, Differential Inputs, PWM, Short-Circuit Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 16-MicroSMD
• For Use With: LM4674ATLBD - BOARD EVALUATION LM4674ATL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4674ATLX

P
THD+N
PSRR
CMRR
η
SNR
e
Symbol
OS
O
Electrical Characteristics V
The following specifications apply for A
T
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
derating currents for more information.
Note 4: Human body model, 100pF discharged through a 1.5kΩ resistor.
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).
A
= 25˚C. (Continued)
Output Power
Total Harmonic Distortion
Power Supply Rejection Ratio
Common Mode Rejection Ratio
Efficiency
Crosstalk
Signal to Noise Ratio
Output Noise
Parameter
DMAX
= (T
JMAX
– T
V
= 6dB, R
A
)/ θ
JA
DD
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4674A see power
R
f = 1kHz, 22kHz BW
R
f = 1kHz, 22kHz BW
R
f = 1kHz, 22kHz BW
R
f = 1kHz, 22kHz BW
P
P
V
f
= 1µF, input referred
V
f
1µF, input referred
V
f
P
R
P
V
Input referred, A-Weighted Filter
Ripple
Ripple
RIPPLE
L
L
L
L
O
O
RIPPLE
RIPPLE
RIPPLE
O
L
O
DD
V
V
V
V
V
V
V
V
V
V
V
V
L
= 3.6V
= 15µH + 4Ω + 15µH, THD = 10%
= 15µH + 8Ω + 15µH, THD = 10%
= 15µH + 4Ω + 15µH, THD = 1%
= 15µH + 8Ω + 15µH, THD = 1%
= 8Ω, V
= 500mW, f = 1kHz, RL = 8Ω
= 300mW, f = 1kHz, RL = 8Ω
= 1W, f = 1kHz,
= 500mW, f = 1kHz
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= 15µH + 8Ω + 15µH, f = 1kHz unless otherwise specified. Limits apply for
= 5V, P
= 217Hz, Inputs AC GND, C
= 1kHz, Inputs AC GND, C
= 5V
= 3.6V
= 2.5V
= 5V
= 3.6V
= 2.5V
= 5V
= 3.6V
= 2.5V
= 5V
= 3.6V
= 2.5V
= 217Hz
= 200mV
= 1V
= 1V
DD
Conditions
O
P-P
P-P
= 5V
= 1W
(Notes 1, 2)
5
Sine,
P-P
Sine,
I
JMAX
=
I
, θ
JA
(Note 6)
Typical
, and the ambient temperature, T
0.530
0.350
0.430
0.285
0.78
1.25
0.63
0.07
0.05
2.5
1.2
1.5
1.9
75
75
67
85
84
96
20
1
LM4674A
(Note 7)
Limit
0.6
A
. The maximum
www.national.com
(Limits)
Units
dB
dB
dB
dB
dB
µV
W
W
W
W
W
W
W
W
W
W
W
W
%
%
%