LM4871: 3W Audio Power Amplifier with Shut down Mode
The LM4871 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply (see Note). To conserve power in portable applications, the LM4871's micro power shutdown mode (IQ = 0.6µA, typ) is activated when VDD is applied to the SHUTDOWN pin.
Boomer audio power amplifiers are designed specifically to provide high power, high fidelity audio output. They require few external components and operate on low supply voltages from 2.0V to 5.5V. Since the LM4871 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is ideally suited for low-power portable systems that require minimum volume and weight.
Additional LM4871 features include thermal shutdown protection, unity-gain stability, and external gain set.
Note: An LM4871LD that has been properly mounted to a circuit board will deliver 3W into 3Ω (at 10% THD). The other package options for the LM4871 will deliver 1.5W into 8Ω (at 10% THD). See the Application Information section for further information concerning the LM4871LD, LM4871MM, LM4871M, and the LM4871N.
Features
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Applications
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KEY SPECIFICATIONS
- PO at 10% THD+N, 1kHz
- LM4871LD: 3Ω , 4Ω Loads; 3W (typ), 2.5 W (typ)
- All other LM4871 Packages: 8Ω load 1.5 W (typ)
- Shutdown Current 0.6μA (typ)
- Supply Voltage Range 2.0V to 5.5 V
- THD at 1kHz at 1W Continuous Average Output Power into 8Ω 0.5% (max)
Kép | Rész # | Gyártó | Leírás | Készlet | Ár | megvesz |
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KEMET Electronics
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Multilayer Ceramic Capacitors MLCC - SMD/SMT 500V 0.018uF 5% AEC-Q200
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0
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Kyocera AVX
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Multilayer Ceramic Capacitors MLCC - SMD/SMT 1.5KV .022uF X7R 2225 20% Tol HV
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0
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Részlet | ||
Murata Electronics
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Multilayer Ceramic Capacitors MLCC - SMD/SMT
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0
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Részlet | ||
KEMET Electronics
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Multilayer Ceramic Capacitors MLCC - SMD/SMT 250V 240pF C0G 0402 5%
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0
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Részlet | ||
KEMET Electronics
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Multilayer Ceramic Capacitors MLCC - SMD/SMT 630Vo 220pF X8G 0805 10%
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0
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Részlet | ||
KEMET Electronics
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Multilayer Ceramic Capacitors MLCC - SMD/SMT 16V 2000pF U2J 0402 20%
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0
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Részlet | ||
KEMET Electronics
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Multilayer Ceramic Capacitors MLCC - SMD/SMT 250V 9.3pF C0G 0805 0.25pF
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0
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Részlet |