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LM4876 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM4876 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 12 page LM4876 1.1W Audio Power Amplifier with Logic Low Shutdown General Description The LM4876 is a single 5V supply bridge-connected audio power amplifier capable of delivering 1.1W (typ) of continu- ous average power to an 8 Ω load with 0.5% THD+N. Like other audio amplifiers in the Boomer series, the LM4876 is designed specifically to provide high quality output power with a minimal amount of external components. The LM4876 does not require output coupling capacitors, bootstrap ca- pacitors, or snubber networks. It is perfectly suited for low- power portable systems. The LM4876 features an active low externally controlled, micro-power shutdown mode. Additionally, the LM4876 fea- tures an internal thermal shutdown protection mechanism. For PCB space efficiency, the LM4876 is available in MSOP and SO surface mount packages. The unity-gain stable LM4876’s closed loop gain is set using external resistors. Key Specifications j THD+N at 1kHz for 1W continuous average output power into 8 Ω 0.5% (max) j Output power at 1kHz into 8 Ω with 10% THD+N 1.5W (typ) j Shutdown current 0.01µA (typ) j Supply voltage range 2.0V to 5.5V Features n Does not require output coupling capacitors, bootstrap capacitors, or snubber circuits n 10-pin MSOP and 8-pin SO packages n Unity-gain stable n External gain set Applications n Mobile Phones n Portable Computers n Desktop Computers n Low-Voltage Audio Systems Typical Application Boomer® is a registered trademark of National Semiconductor Corporation. 10129901 FIGURE 1. Typical LM4876 Audio Amplifier Application Circuit. Numbers in ( ) are specific to the 10-pin MSOP package March 2003 © 2003 National Semiconductor Corporation DS101299 www.national.com |
Similar Part No. - LM4876_03 |
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Similar Description - LM4876_03 |
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