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 Products > Audio Products > Boomer Audio Power Amplifiers <6V,<3W > LM4850

LM4850  Product Folder

Mono 1.5 W / Stereo 300 mW Power Amplifier
Generic P/N 4850
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) 2, 1 
User Supply (Volt) 5 
Supply Range +2.4 - +5.5 V 
PowerAtFourOhms OnePercentTHD (Watt) 1.70, 1.50 
PowerAtEightOhms OnePercentTHD (Watt) 1.10 
PowerAtFourOhms TenPercentTHD (Watt) 2.40, 1.90 
PowerAtEightOhms TenPercentTHD (Watt) 1.45, 1.40 
SNR (dB) 100 
SNR Conditions Undefined 
PSRR (dB) - 
PSRR Conditions Undefined 
THD (%) - 
THD Conditions Undefined 
Audio Mux No 

Datasheet

TitleSize in KbytesDate
View Online
Download
Receive via Email
LM4850 ™BOOMER Mono 1.5 W Stereo 300 mW Power Amplifier 1112 Kbytes 26-Jul-02 View Online Download Receive via Email
LM4850 ™BOOMER Mono 1.5 W Stereo 300 mW Power Amplifier (JAPANESE)
 2638 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
LM4850LDLLP14StatusFull productionN/AN/ASamples1K+$0.80reel
of
1000		NS
UZXYTT
L4850LD
8-10 weeks20000
LM4850LDXLLP14StatusFull productionN/AN/A 
Buy Now		1K+$0.80reel
of
4500		NS
UZXYTT
L4850LD
8-10 weeks10000
LM4850MTTSSOP14StatusFull productionN/AN/ASamples
Buy Now 		1K+$0.80rail
of
94		NSZXYTT
LM4850
MT
12-14 weeks40000
LM4850MTXTSSOP14StatusFull productionN/AN/A 
Buy Now		1K+$0.80reel
of
2500		NSZXYTT
LM4850
MT
12-14 weeks40000
LM4850MMMINI SOIC10StatusFull productionN/AN/ASamples
Buy Now		1K+$0.80reel
of
1000		ZXTT
G50
13-15 weeks20000
LM4850MMXMINI SOIC10StatusFull productionN/AN/A 
Buy Now		1K+$0.80reel
of
3500		ZXTT
G50
13-15 weeks50000
LM4850 MDCUnpackaged DieFull productionN/AN/ASamples  tray
of
N/A		-
N/A0
LM4850 MWCWaferFull productionN/AN/A   wafer jar
of
N/A		-
N/A0

General Description

The LM4850 is an audio power amplifier capable of delivering 1.5W (typ) of continuous average power into a mono 4 bridged-tied load (BTL) with 1% THD+N or 95mW per channel of continuous average power into stereo 32 single-ended (SE) loads with 1% THD+N, using a 5V power supply.

The LM4850 can automatically switch between mono BTL and stereo SE modes utilizing a headphone sense pin. It is ideal for any system that provides both a monaural speaker output and a stereo line or headphone output

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4850 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4850 features an externally controlled, micropower consumption shutdown mode and thermal shutdown protection. The unity-gain stable LM4850's gain is set by external gain-setting resistors

Features

  • Mono 1.5W BTL or stereo 300mW output
  • Headphone sense
  • "Click and pop" suppression circuitry
  • No bootstrap capacitors required
  • Thermal shutdown protection
  • Unity-gain stable
  • LLP, TSSOP, and MSOP packaging

Key Specification

Output Power at 1% THD+N, 1kHz:

  

LM4850LD 3 BTL

1.9W (typ)

LM4850LD 4 BTL

1.7W (typ)

LM4850MM, MT 4 BTL

1.5W (typ)

LM4850LD, MM, MT 8 BTL

1.1W (typ)

LM4850LD, MM, MT 8 SE

300mW (typ)

LM4850LD, MM, MT 32 SE

95mW (typ)

THD+N at 1kHz, 95mW into 32 SE

1% (typ)

Single Supply Operation

2.4 to 5.5V

Shutdown Current

44µA (typ)

Applications

  • Portable computers
  • Desktop computers
  • PDA's
  • Handheld games

Reliability Metrics

Part Number Process Early Failure Rate - Rejects Sample Size (EFR) PPM * Rel. Rejects Device Hours Long Term Failure Rates (FITS) MTTF
LM4850MMCS06508800006000006169643205
LM4850MTCS06508800006000006169643205

For more information on Reliablitity Metrics, please click here.


[Information as of 15-Jan-2004]

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