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 Products > Audio Products > Boomer Audio Power Amplifiers <6V,<3W > LM4871

LM4871  Product Folder

3W Audio Power Amplifier with Shutdown Mode
Generic P/N 4871
General
Description
Features Datasheet Package
& Models
Samples
& Pricing
Reliability
Metrics

Parametric Table Parametric Table
Temperature Min (deg C) -40 
Temperature Max (deg C) 85 
Channels (Channels)
User Supply (Volt)
Supply Range +2.0 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) 2.20 
PowerAtEightOhms OnePercentTHD (Watt) 1.20 
PowerAtFourOhms TenPercentTHD (Watt) 2.50 
PowerAtEightOhms TenPercentTHD (Watt) 1.50 
SNR (dB) 98 
SNR Conditions
PSRR (dB) 60 
PSRR Conditions
THD (%) .13, .25 
THD Conditions Po=1.6W @ Vs=5V, R=4 ohms, Po=1W @ Vs=5V, R=8 ohms 
Audio Mux

Datasheet

TitleSize in KbytesDate
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LM4871 3W Audio Power Amplifier with Shutdown Mode 402 Kbytes 30-Oct-00 View Online Download Receive via Email
LM4871 3W Audio Power Amplifier with Shutdown Mode (JAPANESE)
231 Kbytes   View Online Download Receive via Email

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time
QtySPICEIBISQty$US each
LM4871LDLLP8StatusFull productionN/AN/A24 Hour Samples
Buy Now
1K+$0.45reel
of
1000
NS
UZXYTT
L4871
9 weeks0
LM4871LDXLLP8StatusFull productionN/AN/A 
Buy Now
1K+$0.45reel
of
4500
NS
UZXYTT
L4871
9 weeks0
LM4871MSOIC NARROW8StatusFull productionN/AN/A24 Hour Samples
Buy Now
1K+$0.45rail
of
95
NSXYTT
4871
3-6 weeks20000
LM4871MXSOIC NARROW8StatusFull productionN/AN/A 
Buy Now
1K+$0.45reel
of
2500
NSXYTT
4871
8 weeks0
LM4871MMMINI SOIC8StatusFull productionN/AN/A24 Hour Samples
Buy Now
1K+$0.45reel
of
1000
ZXTT
G71
15-17 weeks100000
LM4871MMXMINI SOIC8StatusFull productionN/AN/A 1K+$0.45reel
of
3500
ZXTT
G71
15-17 weeks50000
LM4871NMDIP8StatusFull productionN/AN/A24 Hour Samples
Buy Now
1K+$0.60rail
of
40
NSUZXYTT
LM4871N
3-6 weeks50000
LM4871 MDAUnpackaged DieFull productionN/AN/A   tray
of
N/A
-
N/A0
LM4871 MWAWaferFull productionN/AN/A   wafer jar
of
N/A
-
N/A0

General Description

The LM4871 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ohm load with less than 10% THD when powered by a 5V power supply . To conserve power in portable applications, the LM4871's micropower shutdown mode (IQ = 0.6µA, typ) is activated when VDD is applied to the SHUTDOWN pin.

Boomer audio power amplifiers are designed specifically to provide high power, high fidelity audio output. They require few external components and operate on low supply voltages from 2.0V to 5.5V. Since the LM4871 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is ideally suited for low-power portable systems that require minimum volume and weight.

Additional LM4871 features include thermal shutdown protection, unity-gain stability, and external gain set.

Features

  • No output coupling capacitors, bootstrap capacitors, or snubber circuits required
  • Unity-gain stable
  • LLP, MSOP, SO, or DIP packaging
  • External gain configuration capability
  • Pin compatible with the LM4861

Key Specification

PO at 10% THD+N, 1kHz

LM4871LD: 3Ohm , 4Ohm loads

3W (typ), 2.5W (typ)

All other LM4871 packages: 8Ohm load

1.5W (typ)

Shutdown current

0.6µA (typ)

Supply voltage range

2.0V to 5.5V

THD at 1kHz at 1W continuous average output power into 8Ohm

0.5% (max)

Applications

  • Portable computers
  • Desktop computers
  • Low voltage audio systems

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4871 MDACS06508800006000006169643205
LM4871 MWACS06508800006000006169643205
LM4871LDCS06508800006000006169643205
LM4871LDXCS06508800006000006169643205
LM4871MCS06508800006000006169643205
LM4871MMCS06508800006000006169643205
LM4871MMXCS06508800006000006169643205
LM4871MXCS06508800006000006169643205
LM4871NCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]