Datasheet LM48510SD - National Semiconductor AMP, AUDIO POWER, CLASS D, LLP-16 — 数据表

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Manufacturer: National Semiconductor

Description: AMP, AUDIO POWER, CLASS D, LLP-16

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LM48510 Boosted Class D Audio Power Amplifier
October 2007
LM48510 Boosted Class D Audio Power Amplifier
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 8 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 4 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 L

Specifications:

• Amplifier Type: Power
• Bandwidth: 0.6 MHz
• Base Number: 48510
• Input Offset Voltage Max: 10 mV
• Load Impedance Min: 4 Ohm
• Mounting Type: SMD
• Number of Amplifiers: 1
• Number of Channels: 1
• Number of Pins: 16
• Operating Temperature Range: -40°C to +85°C
• Output Power: 1.2 W
• Package / Case: LLP
• Power Rating RMS: 1.7 W
• SVHC: No SVHC (15-Dec-2010)
• Supply Voltage + Nom: 6 V
• Supply Voltage Range: 2.7 V to 5 V

RoHS: Yes