LM4752 Stereo 11W Audio Power Amplifier | TIJ.co.jp

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Stereo 11W Audio Power Amplifier



The LM4752 is a stereo audio amplifier capable of delivering 11W per channel of continuous average output power to a 4Ω load, or 7W per channel into 8Ω using a single 24V supply at 10% THD+N.

The LM4752 is specifically designed for single supply operation and a low external component count. The gain and bias resistors are integrated on chip, resulting in a 11W stereo amplifier in a compact 7 pin TO220 package. High output power levels at both 20V and 24V supplies and low external component count offer high value for compact stereo and TV applications. A simple mute function can be implemented with the addition of a few external components.

Key Specifications

  • Output power at 10% THD+N with 1kHz into 4Ω at VCC = 24V:  11W (typ)
  • Output power at 10% THD+N with 1kHz into 8Ω at VCC = 24V:  7W (typ)
  • Closed loop gain: 34dB (typ)
  • PO at 10% THD+N @ 1 kHz into 4Ω single-ended TO-263 package at VCC = 12V: 2.5W (typ)
  • PO at 10% THD+N @ 1kHz into 8Ω bridged TO-263 package at VCC = 12V: 5W (typ)

  • 特長

  • Drives 4Ω and 8Ω loads
  • Internal gain resistors (AV = 34 dB)
  • Minimum external component requirement
  • Single supply operation
  • Internal current limiting
  • Internal thermal protection
  • Compact 7-lead TO-220 package
  • Low cost-per-watt
  • Wide supply range 9V - 40V

  • 機能一覧

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    Part number オーダー・オプション Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) PSRR (dB) Operating temperature range (C) Rating
    LM4752 ご注文 Analog Input     Class-AB     Stereo     9.6     16     11     4     0.08     5.25     Hardware     Closed     9.6     16     50     0 to 70     Catalog