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오디오, 햅틱, 피에조
오디오 증폭기
범용 오디오 증폭기

LM4889

활성

1와트 오디오 전원 증폭기

지금 주문하기
데이터 시트

LM4889

활성
데이터 시트 지금 주문하기

제품 상세 정보

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 1.2 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.2 THD + N at 1 kHz (%) 0.1 Load (min) (Ω) 8 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 1.2 Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.2 THD + N at 1 kHz (%) 0.1 Load (min) (Ω) 8 Analog supply voltage (min) (V) 2.2 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm)
  • Available in Space-Saving VSSOP, SOIC, WSON, and DSBGA Packages
  • Ultra Low Current Shutdown Mode (3.3 to 2.6V - 0.01µA)
  • Can Drive Capacitive Loads up to 500 pF
  • Improved Pop & Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
  • 2.2 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Improved PSRR at 217Hz, 5 - 3.3V 75dB
  • Power Output at 5.0V & 2% THD 1.0W(typ.)
  • Power Output at 3.3V & 1% THD 400mW(typ.)
  • Shutdown Current at 3.3 & 2.6V 0.01µA(typ.)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

  • Available in Space-Saving VSSOP, SOIC, WSON, and DSBGA Packages
  • Ultra Low Current Shutdown Mode (3.3 to 2.6V - 0.01µA)
  • Can Drive Capacitive Loads up to 500 pF
  • Improved Pop & Click Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
  • 2.2 - 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity-Gain Stable
  • External Gain Configuration Capability

Key Specifications

  • Improved PSRR at 217Hz, 5 - 3.3V 75dB
  • Power Output at 5.0V & 2% THD 1.0W(typ.)
  • Power Output at 3.3V & 1% THD 400mW(typ.)
  • Shutdown Current at 3.3 & 2.6V 0.01µA(typ.)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

The LM4889 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load with less than 2% distortion (THD+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4889 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4889 features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with a logic low. Additionally, the LM4889 features an internal thermal shutdown protection mechanism.

The LM4889 contains advanced pop & click circuitry to eliminate noise which would otherwise occur during turn-on and turn-off transitions.

The LM4889 is unity-gain stable and can be configured by external gain-setting resistors.

The LM4889 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load with less than 2% distortion (THD+N) from a 5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4889 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM4889 features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with a logic low. Additionally, the LM4889 features an internal thermal shutdown protection mechanism.

The LM4889 contains advanced pop & click circuitry to eliminate noise which would otherwise occur during turn-on and turn-off transitions.

The LM4889 is unity-gain stable and can be configured by external gain-setting resistors.

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* 데이터 시트 LM4889 1 Watt Audio Power Amplifier datasheet (Rev. H) 2013. 5. 3

설계 및 개발

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SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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