LM4752

ACTIVE

Stereo 11W Audio Power Amplifier

Top

Product details

Parameters

Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Stereo Power stage supply (Max) (V) 16 Power stage supply (Min) (V) 9.6 Load (Min) (ohms) 4 Output power (W) 11 THD + N @ 1 kHz (%) 0.08 Iq (Typ) (mA) 5.25 Control interface Hardware Closed/open loop Closed Analog supply (Min) (V) 9.6 Analog supply (Max) (V) 16 PSRR (dB) 50 Operating temperature range (C) 0 to 70 open-in-new Find other Speaker amps

Package | Pins | Size

TO-263 (KTW) 7 154 mm² 10.1 x 15.24 open-in-new Find other Speaker amps

Features

  • 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

Key Specifications

  • Output Power at 10% THD+N with 1kHz into 4Ω VCC = 24V 11 W (typ)
  • Output Power at 10% THD+N with 1kHz into 8Ω VCC = 24V 7 W (typ)
  • Closed Loop Gain 34 dB (typ)
  • PO at 10% THD+N @ 1 kHz into 4Ω Single-Ended DDPAK Package VCC = 12V 2.5 W (typ)
  • PO at 10% THD+N @ 1kHz into 8Ω Bridged DDPAK Package VCC = 12V 5 W (typ)

All trademarks are the property of their respective owners.

open-in-new Find other Speaker amps

Description

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 TO-220 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.

open-in-new Find other Speaker amps
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet LM4752 Stereo 11W Audio Power Amp datasheet (Rev. E) Apr. 04, 2013
Application notes Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application notes AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SNAM045.TSC (295 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SNAM046.ZIP (20 KB) - TINA-TI Spice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTW) 7 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos