LM48511SQ National Semiconductor, LM48511SQ Datasheet - Page 9

• Manufacturer Part Number: LM48511SQ
• Manufacturer: National Semiconductor

Specifications of LM48511SQ

• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 6.7x1@4OhmW
• Audio Amplifier Function: Speaker
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 5V
• Power Supply Requirement: Triple
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 88dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 3/4.8V
• Dual Supply Voltage (max): 5.5/8V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 24
• Lead Free Status / Rohs Status: Not Compliant

PSRR
CMRR
η
V
FB
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability
and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in
the Recommended Operating Conditions is not implied. TheRecommended Operating Conditions indicate conditions at which the device is functional and the
device should not be operated beyond such conditions. All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: The Electrical Characteristics tables list guaranteed specifications under the listed Recommended Operating Conditions except as otherwise modified
or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not guaranteed.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation is P
derating curves for additional information.
Note 4: Human body model, applicable std. JESD22-A114C.
Note 5: Machine model, applicable std. JESD22-A115-A.
Note 6: Typical values represent most likely parametric norms at T
characterization and are not guaranteed.
Note 7: Datasheet min/max specification limits are guaranteed by test or statistical analysis.
Note 8: Shutdown current is measured with components R1 and R2 removed.
Note 9: Feedback pin reference voltage is measured with the Audio Amplifier disconnected from the Boost converter (the Boost converter is unloaded).
Note 10: R
15μH+4Ω+15μH.
Note 11: Offset voltage is determined by: (I
Symbol
L
is a resistive load in series with two inductors to simulate an actual speaker load for R
Power Supply Rejection Ratio
(Input Referred)
Common Mode Rejection Ratio
(Input Referred)
Efficiency
Feedback Pin Reference Voltage
DMAX
= (T
Parameter
JMAX
DD (with load)
- T
A
) / θ
JA
— I
or the number given in Absolute Maximum Ratings, whichever is lower. For the LM48511, see power
DD (no load)
A
) x R
V
f
V
f
V
f
V
f = 1kHz, R
= +25ºC, and at the Recommended Operation Conditions at the time of product
RIPPLE =
RIPPLE =
RIPPLE =
RIPPLE
RIPPLE
RIPPLE
RIPPLE
FF
SS
FF
SS
FF
SS
L
.
= 200mV
= 200mV
= 200mV
= 1V
= 217Hz
= 1kHz
= 10kHz
9
L
Conditions
P-P
= 8Ω, P
, f
P-P
P-P
P-P
RIPPLE
Sine,
Sine,
Sine,
O
= 1W
= 217Hz
L
= 8Ω, the load is 15μH+8Ω+15μH. For R
JMAX
, θJ
JA
, and the ambient temperature, T
(Note 6)
Typical
1.23
89
89
88
88
78
78
71
75
LM48511
(Note 7)
Limit
L
= 4Ω, the load is
A
. The maximum
www.national.com
(Limits)
Units
dB
dB
dB
dB
dB
dB
dB
%
V