Datasheet LM4905MM - National Semiconductor AMP, AUDIO POWER 1.1 W, SMD, LLP-28 — Datenblatt

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Manufacturer: National Semiconductor

Description: AMP, AUDIO POWER 1.1 W, SMD, LLP-28

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Docket:
LM4905 1 Watt Audio Power Amplifier
July 2003
LM4905 1 Watt Audio Power Amplifier
General Description
The LM4905 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.

It is capable of delivering 1 watt of continuous average power to an 8 BTL load with less than 1% distortion (THD+N) from a 5VDC power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4905 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement. The LM4905 features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with logic low. Additionally, the LM4905 features an internal thermal shutdown protection mechanism. The LM4905 contains advanced

Specifications:

• Amplifier Type: Power
• Base Number: 4905
• Load Impedance Min: 8 Ohm
• Mounting Type: SMD
• Number of Amplifiers: 2
• Number of Channels: 1
• Number of Pins: 28
• Operating Temperature Range: -40°C to +85°C
• Output Power: 1.1 W
• Package / Case: LLP
• Power Rating RMS: 1.07 W
• SVHC: No SVHC (15-Dec-2010)
• Supply Voltage + Nom: 6 V
• Supply Voltage Range: 2.2 V to 5.5 V

RoHS: Yes