Datasheet

LM4941, LM4941SDBD, LM4941TMBD
www.ti.com SNAS347C –JUNE 2006–REVISED MAY 2013
Absolute Maximum Ratings
(1)(2)(3)
Supply Voltage 6.0V
Storage Temperature −65°C to +150°C
Input Voltage −0.3V to V
DD
+0.3V
Power Dissipation
(4)(5)
Internally Limited
ESD Susceptibility
(6)
2000V
ESD Susceptibility
(7)
200V
Junction Temperature 150°C
Thermal Resistance θ
JA
(TM) 100°C/W
θ
JA
(WSON) 71°C/W
Soldering Information See AN-1187 (SNOA401)
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3) If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(4) The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX
, θ
JA
, and the ambient temperature
T
A
. The maximum allowable power dissipation is P
DMAX
= (T
JMAX
– T
A
) / θ
JA
or the number given in Absolute Maximum Ratings,
whichever is lower. For the LM4941, see power derating curve for additional information.
(5) Maximum Power Dissipation (P
DMAX
) in the device occurs at an output power level significantly below full output power. P
DMAX
can be
calculated using Equation 3 shown in the Application section. It may also be obtained from the Power Dissipation graphs.
(6) Human body model, 100pF discharged through a 1.5kΩ resistor.
(7) Machine Model, 220pF – 240pF discharged through all pins.
Operating Ratings
Temperature Range T
MIN
≤ T
A
≤ T
MAX
−40°C ≤ T
A
≤ 85°C
Supply Voltage 2.4V ≤ V
DD
≤ 5.5V
Electrical Characteristics V
DD
= 5V
(1)(2)
The following specifications apply for V
DD
= 5V, A
V
= 1V/V, and 8Ω load unless otherwise specified. Limits apply for T
A
=
25°C.
LM4941
Units
Symbol Parameter Conditions
(Limits)
Typical
(3)
Limit
(4)(5)
V
IN
= 0V, no load 1.7 2.3 mA (max)
I
DD
Quiescent Power Supply Current
V
IN
= 0V, R
L
= 8Ω 1.7 mA
I
SD
Shutdown Current V
SHDN
= GND 0.1 0.8 µA (max)
THD+N = 1% (max); f = 1 kHz
R
L
= 8Ω 1.25 1.15 W (min)
P
O
Output Power
THD+N = 10% (max); f = 1 kHz
R
L
= 8Ω 1.54 W
THD+N Total Harmonic Distortion + Noise P
O
= 0.7 W; f = 1kHz 0.04 %
V
RIPPLE
= 200mV
P-P
Sine
PSRR Power Supply Rejection Ratio f = 217Hz
(6)
95 80 dB (min)
f = 1kHz
(6)
90 dB
(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 ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3) Typicals are measured at 25°C and represent the parametric norm.
(4) Limits are specified to TI's AOQL (Average Outgoing Quality Level).
(5) Datasheet min/max specification limits are specified by design, test, or statistical analysis.
(6) 10Ω terminated input.
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