LM48520TLBD National Semiconductor, LM48520TLBD Datasheet - Page 6

• Manufacturer Part Number: LM48520TLBD
• Description: BOARD EVALUATION FOR LM48520TL
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM48520TLBD

• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 1.3W x 2 @ 8 Ohm
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM48520
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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PSRR
CMRR
η
V
V
FB
out clipped
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
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 V
current.
Note 10: Shutdown current is measured with components R1 and R2 removed.
Note 11: Feedback pin reference voltage is measured with the Audio Amplifier disconnected from the Boost converter (the Boost converter is unloaded).
Symbol
Power Supply Rejection Ratio
Common Mode Rejection Ratio
Efficiency
Feedback Pin Reference Voltage
Output Voltage in clipped state with
soft clip activated
DMAX
= (T
Parameter
JMAX
− T
A
) / θ
JA
or the given in Absolute Maximum Ratings, whichever is lower.
V
f
V
f
V
P
R
(Note 11)
V
V
RIPPLE =
RIPPLE =
RIPPLE
RIPPLE
RIPPLE
O
limit
out clipped
L
V
V
= 15μH + 8Ω + 15μH
= 1W, f = 1kHz,
DD
DD
= 2V, R
= 3.3V
= 4.2V
= 200mV
= 200mV
= 1V
= 217Hz
= 1kHz
6
= 8/3 (PV1 – 2V
Conditions
P-P
L
= 8Ω, V
, f
P-P
P-P
RIPPLE
Sine,
Sine,
IN
= 217Hz
= 2V
limit
JMAX
P
)
, θ
JA
, and the ambient temperature, T
(Note 6)
Typical
1.24
2.5
82
79
67
78
LM48520
(Notes 7, 8)
in
for minimum shutdown
Limit
1.9
3.2
A
. The maximum
Vpk (max)
Vpk (min)
(Limits)
Units
dB
dB
dB
%
V