Datasheet LM4889MM - National Semiconductor IC, AMP, AUDIO POWER 1 W, SMD, 8MSOP — Ficha de datos

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Manufacturer: National Semiconductor

Description: IC, AMP, AUDIO POWER 1 W, SMD, 8MSOP

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Docket:
LM4889 1 Watt Audio Power Amplifier
November 2006
LM4889 1 Watt Audio Power Amplifier
General Description
The LM4889 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 2% 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 LM4889 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 LM4889 features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with a logic low. Additionally, the LM4889 features an internal thermal shutdown protection mechanism. The LM4889 contains adv

Specifications:

• Amplifier Type: Power
• Base Number: 4889
• Load Impedance Min: 8 Ohm
• Load Impedance: 8 Ohm
• Mounting Type: SMD
• Number of Amplifiers: 2
• Number of Channels: 1
• Number of Pins: 8
• Operating Temperature Range: -40°C to +85°C
• Output Power Pout: 1 W @ 8 Ohm
• Output Power: 1 W
• Package / Case: MSOP
• Power Rating RMS: 1.1 W
• Supply Voltage + Nom: 6 V
• Supply Voltage Range: 2.2 V to 5.5 V
• THD + N: 0.1% @ 400 mW, VDD=5V
• RoHS: Yes
• SVHC: No SVHC (19-Dec-2011)