LM4990MMX/NOPB National Semiconductor, LM4990MMX/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM4990MMX/NOPB
• Description: IC AMP AUDIO PWR 2W MONO 8MSOP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4990MMX/NOPB

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 2W x 1 @ 4 Ohm
• Voltage - Supply: 2.2 V ~ 5.5 V
• Features: Depop, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 2x1@4OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.2@500mW%
• 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: 64dB
• Single Supply Voltage (min): 2.2V
• 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: 8
• Package Type: MSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4990MMX

P
T
THD+N+N Total Harmonic Distortion+Noise
PSRR
I
I
V
V
V
V
V
R
P
T
THD+N+N Total Harmonic Distortion+Noise
PSRR
DD
SD
Symbol
Symbol
WU
WU
o
SDIH
SDIL
SDIH
SDIL
OS
o
OUT
Electrical Characteristics V
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for T
25˚C. (Continued)
Electrical Characteristics V
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for 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
curves for additional 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).
Note 8: For micro SMD only, shutdown current is measured in a Normal Room Environment. Exposure to direct sunlight will increase I
Note 9: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 10: R
Note 11: If the product is in Shutdown mode and V
If the source impedance limits the current to a max of 10mA, then the device will be protected. If the device is enabled when V
6.5V, no damage will occur, although operation life will be reduced. Operation above 6.5V with no current limit will result in permanent damage.
Note 12: Maximum power dissipation in the device (P
Equation 1 shown in the Application Information section. It may also be obtained from the power dissipation graphs.
ROUT
Output Power (8Ω)
Wake-up time
Power Supply Rejection Ratio
Quiescent Power Supply Current
Shutdown Current
Shutdown Voltage Input High
Shutdown Voltage Input Low
Shutdown Voltage Input High
Shutdown Voltage Input Low
Output Offset Voltage
Resistor Output to GND (Note 10)
Output Power ( 8Ω )
Wake-up time
Power Supply Rejection Ratio
is measured from the output pin to ground. This value represents the parallel combination of the 10kΩ output resistors and the two 20kΩ resistors.
Parameter
Parameter
( 4Ω )
DMAX
(4Ω)
= (T
JMAX
–T
A
)/θ
DD
JA
exceeds 6V (to a max of 8V V
DMAX
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM4990, see power derating
DD
DD
THD+N = 1% (max); f = 1kHz
THD+N = 1% (max); f = 1kHz
P
V
Input terminated with 10Ω
V
V
V
V
V
V
V
THD+N = 1% (max); f = 1kHz
THD+N = 1% (max); f = 1kHz
P
V
Input terminated with 10Ω
) occurs at an output power level significantly below full output power. P
o
ripple
IN
IN
SD
SD MODE
SD MODE
SD MODE
SD MODE
o
ripple
= 3V
= 0.25Wrms; f = 1kHz
= 0.15Wrms; f = 1kHz
= 2.6V
= 0V, I
= 0V, I
= V
= 200mV sine p-p
= 200mV sine p-p
SD Mode
= V
= V
= GND
= GND
o
o
(Notes 1, 2)
Conditions
Conditions
= 0A, No Load
= 0A, 8Ω Load
DD
DD
(Notes 1, 2)
5
(Note 8)
DD
), then most of the excess current will flow through the ESD protection circuits.
JMAX
62 (f =
217Hz)
68 (f = 1kHz)
51 (f =
217Hz)
51 (f = 1kHz)
, θ
JA
(Note 6)
(Note 6)
Typical
Typical
, and the ambient temperature T
425
600
300
400
0.1
2.0
3.0
0.1
1.0
0.9
1.2
1.0
8.5
0.1
75
70
5
LM4990
LM4990
DD
is greater than 5.5V and less than
(Notes 7, 9)
(Notes 7, 9)
DMAX
Limit
Limit
9.7
7.0
55
50
SD
can be calculated using
by a maximum of 2µA.
A
A
A
=
. The maximum
= 25˚C.
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mV (max)
kΩ (max)
kΩ (min)
dB (min)
(Limits)
(Limits)
Units
Units
mW
mW
mW
mA
mA
ms
ms
µA
dB
%
%
V
V
V
V