Datasheet

LM4673, LM4673SDBD, LM4673TMBD
SNAS317D –DECEMBER 2005–REVISED MAY 2013 www.ti.com
Electrical Characteristics
(1)(2)
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.
LM4673
Units
Symbol Parameter Conditions
(Limits)
Typical
(3)
Limit
(4)(5)
V
I
= 0V, A
V
= 2V/V,
|V
OS
| Differential Output Offset Voltage 5 mV (max)
V
DD
= 2.4V to 5.0V
|I
IH
| Logic High Input Current V
DD
= 5.0V, V
I
= 5.5V 17 100 μA (max)
|I
IL
| Logic Low Input Current V
DD
= 5.0V, V
I
= –0.3V 0.9 5 μA (max)
V
IN
= 0V, No Load, V
DD
= 5.0V 2.6 3.75 mA (max)
V
IN
= 0V, No Load, V
DD
= 3.6V 2.1 2.9 mA
V
IN
= 0V, No Load, V
DD
= 2.4V 1.7 2.3 mA (max)
I
DD
Quiescent Power Supply Current
V
IN
= 0V, R
L
= 8Ω, V
DD
= 5.0V 2.6
V
IN
= 0V, R
L
= 8Ω, V
DD
= 3.6V 2.1
V
IN
= 0V, R
L
= 8Ω, V
DD
= 2.4V 1.7
V
SHUTDOWN
= 0V
I
SD
Shutdown Current
(6)
0.01 1 μA (max)
V
DD
= 2.4V to 5.0V
V
SDIH
Shutdown voltage input high 1.4 V (min)
V
SDIL
Shutdown voltage input low 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 2.65 W
V
DD
= 3.6V 1.3 W
V
DD
= 2.5V 550 mW
P
O
Output Power
R
L
= 15μH + 4Ω + 15μH
THD = 1% (max)
f = 1kHz, 22kHz BW
V
DD
= 5V 2.15 W
V
DD
= 3.6V 1.06 W
V
DD
= 2.5V 450 mW
(1) All voltages are measured with respect to the ground pin, unless otherwise specified.
(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.
(3) Typical specifications are specified at 25°C and represent the parametric norm.
(4) Tested limits are guaranteed to TI's AOQL (Average Outgoing Quality Level).
(5) Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
(6) Shutdown current is measured in a normal room environment. Exposure to direct sunlight will increase I
SD
by a maximum of 2µA. The
Shutdown pin should be driven as close as possible to GND for minimal shutdown current and to V
DD
for the best THD performance in
PLAY mode. See the Application Information section under SHUTDOWN FUNCTION for more information.
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