LM4872IBP

Type: Class AB
Output Type: 1-Channel (Mono)
Mounting Type: Surface Mount
Package / Case: 8-VFBGA
Packaging: Cut Tape (CT)
Voltage - Supply: 2 V ~ 5.5 V
Series: Boomer®
Manufacturer: National Semiconductor
Features: Shutdown, Thermal Protection
Max Output Power x Channels @ Load: 1W x 1 @ 8 Ohm
Supplier Device Package: 8-uSMD


Features:

 micro SMD package (see App. note AN-1112)
 5V - 2V operation
 No output coupling capacitors or bootstrap capacitors.
 Unity-gain stable
 External gain configuration capability



Application

Cellular Phones
 Portable Computers
 Low Voltage Audio Systems


Pinout




Specifications

Supply Voltage                                                   6.0V
Storage Temperature                    −65°C to +150°C
Input Voltage                             −0.3V to VDD +0.3V
Power Dissipation (Note 3)            Internally Limited
ESD Susceptibility (Note 4)                              2500V
ESD Susceptibility (Note 5)                               250V
Junction Temperature                                    150°C



Description

  The LM4872IBP is a bridge-connected audio power amplifier capable of delivering 1 W of continuous average power to an 8W load with less than .2% (THD) from a 5V power supply.Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4872 does not require output coupling capacitors or bootstrap capacitors. It is optimally suited for low-power portable applications.

  The LM4872IBP features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

  The unity-gain stable LM4872IBP can be configured by external gain-setting resistors.