Datasheet

LM4671
SNAS258D –MARCH 2005–REVISED MAY 2013 www.ti.com
Electrical Characteristics
(1)(2)
(continued)
The following specifications apply for A
V
= 2V/V (R
I
= 150kΩ), R
L
= 15µH + 8Ω + 15µH unless otherwise specified. Limits
apply for T
A
= 25°C.
LM4671
Units
Symbol Parameter Conditions
(Limits)
Typical
(3)
Limit
(4) (5)
V
IN
= 0V, No Load, V
DD
= 5.0V 6.4 mA (max)
I
DD
Quiescent Power Supply Current V
IN
= 0V, No Load, V
DD
= 3.6V 3.8 6.2 mA
V
IN
= 0V, No Load, V
DD
=2.4V 2.0 3.0 mA (max)
V
SHUTDOWN
= 0V
I
SD
Shutdown Current 0.01 1 μA (max)
V
DD
= 2.4V to 5.0V
V
SDIH
Shutdown voltage input high 1.2 1.4 V (min)
V
SDIL
Shutdown voltage input low 1.1 0.4 V (max)
R
OSD
Output Impedance V
SHUTDOWN
= 0.4V 100 kΩ
270kΩ/R
I
V/V (min)
A
V
Gain 300kΩ/R
I
330kΩ/R
I
V/V (max)
Resistance from Shutdown Pin to
R
SD
300 kΩ
GND
R
L
= 15μH + 4Ω + 15μH
THD = 10% (max)
f = 1kHz, 22kHz BW
V
DD
= 5V 2.5 W
V
DD
= 3.6V 1.3 W
V
DD
= 2.5V 520 mW
P
O
Output Power
R
L
= 15μH + 4Ω + 15μH
THD = 1% (max)
f = 1kHz, 22kHz BW
V
DD
= 5V 2.21 W
V
DD
= 3.6V 1.06 W
V
DD
= 2.5V 420 mW
R
L
= 15μH + 8Ω + 15μH
THD = 10% (max)
f = 1kHz, 22kHz BW
V
DD
= 5V 1.7 W
V
DD
= 3.6V 870 mW
V
DD
= 2.5V 425 mW
P
O
Output Power
R
L
= 15μH + 8Ω + 15μH
THD = 1% (max)
f = 1kHz, 22kHz BW
V
DD
= 5V 1.19 W
V
DD
= 3.6V 700 600 mW
V
DD
= 2.5V 350 mW
V
DD
= 5V, P
O
= 0.1W
RMS
,
0.09 %
f = 1kHz
V
DD
= 3.6V, P
O
= 0.1W
RMS
,
0.04 %
f = 1kHz
THD+N Total Harmonic Distortion + Noise
V
DD
= 3.6V, P
O
= 0.1W
RMS
,
0.12 %
f = 5kHz
V
DD
= 3.6V, P
O
= 0.1W
RMS
,
0.05 %
f = 10kHz
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