LM4952TSX/NOPB National Semiconductor, LM4952TSX/NOPB Datasheet - Page 4

• Manufacturer Part Number: LM4952TSX/NOPB
• Description: IC AMP AUDIO PWR 3.8W AB TO263-9
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4952TSX/NOPB

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 3.8W x 2 @ 4 Ohm
• Voltage - Supply: 9.6 V ~ 16 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: TO-263-9 (9 leads + tab)
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 3.8x2@4OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.08@4Ohm@2W%
• Single Supply Voltage (typ): 12/15V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 89dB
• Single Supply Voltage (min): 9.6V
• Single Supply Voltage (max): 16V
• 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: 9 +Tab
• Package Type: TO-263
• For Use With: LM4952TSBD - BOARD EVALUATION LM4952TS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4952TSX

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VOL
VOL
A
Symbol
M
Electrical Characteristics for Volume Control
The following specifications apply for V
Note 1: All voltages are measured with respect to the GND 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
in Figure 1) with V
area.
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: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
Note 9: Shutdown current is measured in a normal room environment. The Shutdown pin should be driven as close as possible to GND for minimum shutdown
current.
External Components Description
1. C
2. C
3. C
max
min
Components
IN
S
BYPASS
Gain
Gain
Mute Attenuation
DD
= 12V, R
This is the input coupling capacitor. It blocks DC voltage at the amplifier’s inverting input. C
create a highpass filter. The filter’s cutoff frequency is f
EXTERNAL COMPONENTS, for an explanation of determining C
The supply bypass capacitor. Refer to the POWER SUPPLY BYPASSING section for information about
properly placing, and selecting the value of, this capacitor.
This capacitor filters the half-supply voltage present on the BYPASS pin. Refer to the Application section,
SELECTING EXTERNAL COMPONENTS, for information about properly placing, and selecting the value
of, this capacitor.
L
Parameter
DMAX
= 4Ω stereo operation the total power dissipation is 3.65W. θ
= (T
JMAX
− T
DD
A
) / θ
= 12V, A
JA
or the given in Absolute Maximum Ratings, whichever is lower. For the LM4952 typical application (shown
V
V
V
V
DC-VOL
DC-VOL
DC-VOL
= 20dB (nominal), and T
Refer to Figure 1
= Full scale, No Load
= +1LSB, No Load
= 0V, No Load
Functional Description
4
Conditions
JA
= 20˚C/W for the TO263 package mounted to 16in
(Notes 1, 2)
C
A
= 1/(2πR
= 25˚C unless otherwise noted.
JMAX
, θ
JA
IN
IN
, and the ambient temperature, T
’s value.
C
IN
). Refer to the SELECTING
(Note 6)
Typical
-46
20
75
LM4952
(Note 7)
Limit
63
2
IN
A
heatsink surface
. The maximum
and R
dB (min)
(Limits)
Units
dB
dB
IN