Varnitronics
LM4871BM/TR HGSEMI
HGSEMI

LM4871BM/TR

6.5mA 2V~5V 1-Channel SOP-8 Audio Amplifiers

SOP-8RoHSActive

3W Audio Power Amplifier with Shutdown Mode

Manufacturer
HGSEMI
Manufacturer part #
LM4871BM/TR
Store part #
C7432283
Package / case
SOP-8
Packaging
Tape & Reel (TR)
Datasheet (PDF)

Every Order Guarantee

100% Authentic · 30-Day Return or Replacement · policy

3,610 in stock

#C7432283

Stock & price checked 6 days ago

QuantityUnit pricePack price
5+₹24.49₹122.45
50+₹19.22₹961.00
150+₹16.97₹2,545.50
500+₹14.16₹7,080.00
2,500+₹12.91₹32,275.00
5,000+₹12.16₹60,800.00

5 × ₹24.49

₹122.45

excl. GST

₹144.49 incl. 18% GST

Need volume or a scheduled delivery? Request a quote
  • Dispatch in 7–10 working days
  • GST invoice with every order
  • Standard pack: 2,500 per reel

LM4871BM/TR

₹122.45 for 5 + GST

Specifications

Quiescent Current
6.5mA
Voltage - Supply
2V~5V
Features
Enable/shutdown function
Total Harmonic Distortion + Noise (THD+N)
0.25%
Operating Temperature
-40℃~+85℃
Speaker Channels
1-Channel
Output Power
3Wx1@3Ω;2.5Wx1@4Ω;1.5Wx1@8Ω
Power Supply Rejection Ratio (PSRR)
60dB

Packaging & compliance

RoHS
RoHS
Lifecycle
Active
Packaging
Tape & Reel (TR)
Standard pack
2,500 / Reel
Sold per
Piece
Minimum order
5 (multiples of 5)
Unit weight
0.241 g

Overview

The LM4871B is a monophonic bridge-driven audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V supply. To conserve battery life in portable devices, pulling the SHUTDOWN pin high places the LM4871B into a low-power shutdown mode (Iₒ = 0.6μA typical). This series of audio power amplifiers is specially designed to deliver high-power, high-fidelity audio output. Operating from a 2.0V to 5.0V supply, they support low-voltage operation with minimal external components. Since the LM4871B requires no output coupling capacitors, bootstrap capacitors, or impedance matching networks, it is an ideal choice for low-power portable systems. The LM4871B also features thermal shutdown protection, unity-gain stability, and externally configurable gain.

Applications

  • Bluetooth speakers
  • Portable computers
  • Radio systems

Key features

  • No output coupling capacitors, bootstrap capacitors, or output impedance equalization network required
  • Unity-gain stable, externally configurable gain
  • Pin-compatible with LM4861
  • Package: SOP-8 / MSOP-8

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