Datasheet LM4961LQ - National Semiconductor AMP, FOR CERAMSPEAKER, MINI SOIC8 — Ficha de datos

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Manufacturer: National Semiconductor

Description: AMP, FOR CERAMSPEAKER, MINI SOIC8

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Docket:
LM4961 Ceramic Speaker Driver
December 2006
LM4961 Ceramic Speaker Driver
General Description
The LM4961 is an audio power amplifier primarily designed for driving Ceramic Speaker for applications in Cell Phone and PDAs.

It integrates a boost converter, with variable output voltage, with an audio power amplifier. It is capable of driving 15Vp-p in BTL mode to 2uF+ 30 ohms load, continuous average power, with less than 1% distortion (THD+N) from a 3.2VDC power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal number of external components. The LM4961 does not require bootstrap capacitors, or snubber circuits therefore it is ideally suited for portable applications requiring high voltage output to drive capacitive loads like Ceramic Speakers. The LM4961 features a low-power consumption shutdown mode. Additionally, the LM4961 features an internal thermal shutdown protection mechanism. The LM4961 contains advanced pop & c

Specifications:

• Amplifier Type: Power
• Base Number: 4961
• Load Impedance Min: 30 Ohm
• Load Impedance: 30 Ohm
• Mounting Type: SMD
• Number of Amplifiers: 1
• Number of Channels: 1
• Number of Pins: 8
• Operating Temperature Range: -40°C to +85°C
• Package / Case: LLP
• SVHC: No SVHC (19-Dec-2011)
• Supply Voltage + Nom: 7 V
• Supply Voltage Range: 2.7 V to 9 V, 3 V to 5 V
• THD + N: 0.05% @ VDD=4.2V

RoHS: Yes