LM4954TL/NOPB by Texas Instruments | APACAudio Amplifiers | Avnet ASIA
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信息

LM4954TL/NOPB

Texas Instruments

Audio Amp Speaker 1-CH Mono 1.2W Class-AB 9-Pin uSMD T/R

製造商產品編號: LM4954TL/NOPB

替代料號: LM4954TL/NOPB


通過RoHS認證

描述

文檔

替代/替換

資料

The LM4954 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 2.4 Watts of continuous average power to an 8Ω BTL load with less than 1% THD+N from a 7VDC power supply.

Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal number of external components. The LM4954 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for lower-power portable applications where minimal space and power consumption are primary requirements.

The LM4954 features a low-power consumption global shutdown mode which is achieved by driving the shutdown pin with logic low. Additionally, the LM4954 features an internal thermal shutdown protection mechanism.

The LM4954 contains advanced pop & click circuitry which eliminates noises that would otherwise occur during turn-on and turn-off transitions.

The LM4954 is unity-gain stable and can be configured by external gain-setting resistors.

 

技術參數

  • No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
  • Unity Gain Stable
  • Externally Configurable Gain
  • Ultra Low Current Active Low Shutdown Mode
  • BTL Output can Drive Capacitive Loads Up to 100pF
  • “Click and Pop” Suppression Circuitry
  • 2.7V - 9.0V Operation
  • Available in Space-Saving DSBGA Package
  • Wide Power Supply Voltage Range, 2.7 ≤ VDD ≤ 9V
  • Output Power: VDD = 7V, 1% THD+N, 2.4W (Typ)
  • Quiescent Power Supply Current, 3mA (Typ)
  • PSRR: VDD = 5V and 3V at 217Hz, 80dB (Typ)
  • Shutdown Power Supply Current, 0.01µA (Typ)
  • 技術屬性

    描述
    尋找類似物料
    Output Signal Type
    Differential
    Maximum Load Resistance
    8 Ohm
    Supplier Package
    uSMD
    Rail to Rail
    No
    Output Type
    1-Channel Mono
    Typical Single Supply Voltage
    3|5 V
    MSL Level
    1
    Typical PSRR
    80 dB
    Function
    Speaker
    Amplifier Type
    Class-AB
    Maximum Single Supply Voltage
    9 V
    Total Harmonic Distortion Noise
    0.1@8Ohm@600mW %
    Input Signal Type
    Single
    Pin Count
    9
    Power Supply Type
    Single
    Typical Output Power x Channels @ Load
    1.2x1@8Ohm W
    Minimum Single Supply Voltage
    2.7 V
    Max Processing Temp
    260
    Product Dimensions
    1.49 x 1.49 x 0.36 mm
    Mounting
    Surface Mount
    Operating Temperature
    -40 to 85 °C
    Lead Finish
    Tin/Silver/Copper

    ECCN/UNSPSC

    描述
    ECCN:
    EAR99
    計劃交貨期 B:
    8542.39.00
    HTSN:
    8542.39.00
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101
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