Datasheet
Package Availability, Models, Samples & Pricing
General Description
The LM48510 integrates a boost converter with a high efficiency mono, Class D audio power amplifier to provide 1.2W continuous
power into an 8Ω speaker when operating on a 3.3V power supply with boost voltage (PV1) of 5.0V. When operating on a 3.3V power supply, the LM48510 is capable of driving a 4Ω speaker load at a continuous average
output of 1.7W with less than 1% THD+N. The Class D amplifier is a low noise, filterless PWM architecture that eliminates
the output filter, reducing external component count, board area consumption, system cost, and simplifying design.
The LM48510's switching regulator is a current-mode boost converter operating at a fixed frequency of 0.6MHz.
The LM48510 is designed for use in mobile phones and other portable communication devices. The high (76%) efficiency extends
battery life when compared to Boosted Class AB amplifiers. The LM48510 features a low-power consumption shutdown mode. Shutdown
may be enabled by driving the Shutdown pin to a logic low (GND).
The gain of the Class D is externally configurable which allows independent gain control from multiple sources by summing
the signals. Output short circuit and Thermal shutdown protection prevent the device from damage during fault conditions.
Superior click and pop suppression eliminates audible transients during power-up and shutdown.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM48510SD | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104
|
|
LM48510SDE | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104
|
|
LM48510SDX | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104
|
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
Application Notes
| Title | Size in Kbytes |
Date |
 |
| AN-1614: Application Note 1614 LM48510 Speaker Application Note |
214 Kbytes |
14-Aug-07 |
Download |
AN-1614 (Chinese): Application Note 1614 LM48510 Speaker Application Note
|
295 Kbytes |
|
 |
More Application Notes
| Title | Size in Kbytes |
Date |
 |
| AN-1922: Application Note 1922 LM48511 Evaluation Board User`s Guide |
1586 Kbytes |
5-Nov-08 |
Download |
| AN-1737: Application Note 1737 Managing EMI in Class D Audio Applications |
183 Kbytes |
2-Nov-07 |
Download |
AN-1737 (Japanese): Application Note 1737 Managing EMI in Class D Audio Applications
 |
178 Kbytes |
|
 |
AN-1737 (Chinese): Application Note 1737 Managing EMI in Class D Audio Applications
|
302 Kbytes |
|
 |
[Information as of 3-Jul-2009]
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