- Mono 1.5W BTL stereo 300mW output or
- Headphone feel
- "Click" sound suppression circuit
- No bootstrap capacitors required
- Thermal shutdown protection
- Unity gain is stable
- LLP, TSSOP and MSOP packages
illustrate
The LM4850 is an audio amplifier that provides continuous average power into mono 4 with the capability of 1.5W (typical).  The bridge connection load is 1% THD + N or 95mW continuous average power per channel (BTL) for stereo 32 Single-ended (SE) load, 1% THD+N, using a 5V supply.
The LM4850 automatically switches between mono BTL and stereo headphone SE modes, utilizing needle feel. This is ideal for any system that offers a mono speaker output and a stereo headphone output line
Boomer audio power amplifiers are designed to provide high quality output power with a small number of external components. Since the LM4850 does not require a start-up capacitor or buffer network, it is ideal for low-power portable systems.
The LM4850 adopts external control, micro-consumption shutdown mode and overheating shutdown protection function. The gain of the unity-gain stabilized LM4850 is set by an external gain-setting resistor
Main specifications
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Output power at 1%THD + N, 1kHz:
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LM4850LD 3 BTL
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1.9W (typical)
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LM4850LD 4 BTL
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1.7W (typical)
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LM4850MM，MT 4 BTL
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1.5W (typical)
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LM4850LD，MM，MT 8 BTL
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1.1W (typical)
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LM4850LD，MM，MT 8 SE
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300mW (typical)
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LM4850LD，MM，MT 32 SE
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95mW (typical)
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THD+N at 1kHz, 95mW to 32 SE
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1% (typical)
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Single-supply operation
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2.4 to 5.5V
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Shutdown current
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44μA (typical)
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apply
- Laptops
- Desktop computers
- PDA
- Handheld game consoles
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