- Energy saving 0.4mm pitch μSMD package in available space
- Ultra-low current shutdown mode
- The BTL output can drive capacitive loads
- Improved pop-and-click circuitry eliminates noise and off-switching during turn-on
- 2.4 - 5.5V operation
- No output coupling capacitors, buffer networks, or bootstrap capacitors required
- Unity gain is stable
- External gain configurability
- LLP package: 0.5mm pitch, 3 × 3mm
illustrate
The LM4995 is an audio power amplifier designed primarily for demanding applications in mobile phones and other portable communication devices. It is able to provide a 5Vdirect currentPower supply distortion (THD+N) is less than 1% of the continuous average power 1.2W8ΩBTL load.
Boomer audio power amplifiers are designed to provide high quality output power with very few external components. The LM4995 does not require output coupling or starter capacitors, making it ideal for use in mobile phones and other low voltage applications where minimum power consumption is a major requirement.
The LM4995 features a low-power shutdown mode implemented by the driving logic low shutdown pin. In addition, the LM4995 has an internal thermal shutdown protection mechanism.
The LM4995 includes advanced POP and click-and-click circuitry to eliminate noise that would otherwise occur during the on-off transition.
The LM4995 is unity gain stable and resistors can be set by configuring external gain.
Main specifications
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■ PSRR at 3.6V (1kHz at 217Hz)
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75 dB
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■ At 5.0V output power, 1% THD+N, 8Ω
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1.3W (typical)
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■ At 3.6V output power, 1% THD + N, 8Ω
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625mW (typical)
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■ Shutdown current
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0.01μA (typical)
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apply
- mobile phone
- Pocket PC
- Portable electronic devices
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