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LM4875  Product Folder

750mW Audio Power Amplifier with DC Volume Control and Headphone Switch
Generic P/N 4875
General
Description		 Features Datasheet Package
& Models		 Samples
& Pricing		 Reliability
Metrics

Datasheet

TitleSize in KbytesDate
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LM4875 BOOMER™ 750 mW Audio Power Amplifier with DC Volume Controland Headphone Switch 626 Kbytes 29-Jan-02 View Online Download Receive via Email

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Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
TypePinsMSL/Lead-Free AvailabilityLead
Time		QtySPICEIBISQty$US each
LM4875MSOIC NARROW8StatusFull productionN/AN/ASamples
Buy Now		1K+$0.70rail
of
95		NSXYTT
LM48
75M
8-10 weeks50000
LM4875MXSOIC NARROW8StatusFull productionN/AN/A 1K+$0.70reel
of
2500		NSXYTT
LM48
75M
8-10 weeks50000
LM4875MMMINI SOIC8StatusFull productionN/AN/ASamples1K+$0.70reel
of
1000		ZXTT
G75
15-17 weeks50000
LM4875MMXMINI SOIC8StatusFull productionN/AN/A 1K+$0.70reel
of
3500		ZXTT
G75
15 weeks0

General Description

The LM4875 is a mono bridged audio power amplifier with DC voltage volume control. The LM4875 is capable of delivering 750mW of continuous average power into an 8 load with less than 1% THD when powered by a 5V power supply. Switching between bridged speaker mode and headphone (single ended) mode is accomplished using the headphone sense pin. To conserve power in portable applications, the LM4875's micropower shutdown mode (IQ = 0.7µA, typ) is activated when less than 300mV is applied to the DC Vol/SD# pin.

Boomer audio power amplifiers are designed specifically to provide high power audio output while maintaining high fidelity. They require few external components and operate on low supply voltages.

Features

  • Precision DC voltage volume control
  • Headphone amplifier mode
  • "Click and pop" suppression
  • Shutdown control when volume control pin is low
  • Thermal shutdown protection

Key Specification

PO at 1.0% THD+N into 8 750mW (typ)
PO at 10% THD+N into 8 1W (typ)
Shutdown current0.7µA(typ)
Supply voltage range2.7V to 5.5V

Applications

  • GSM phones and accessories, DECT, office phones
  • Hand held radio
  • Other portable audio devices

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4875MCS06508800006000006169643205
LM4875MMCS06508800006000006169643205
LM4875MMXCS06508800006000006169643205
LM4875MXCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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