LM4861

LM4861 的PDF资料

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LM4861 的货源和报价

LM4861 的相关技术信息

LM4861 - 1.1W Audio Power Amplifier with Shutdown Mode

Features

• No output coupling capacitors, bootstrap capacitors, or snubber circuits are necessary

• Small Outline (SO) packaging

• Compatible with PC power supplies

• Thermal shutdown protection circuitry

• Unity-gain stable

• External gain configuration capability

Key Specification

THD+N for 1kHz at 1W continuous average output power into 8 1.0% (max)

Output power at 10% THD+N at 1kHz into 8 1.5W (typ)

Shutdown Current 0.6µA (typ)

General Description
The LM4861 is a bridge-connected audio power amplifier capable of delivering 1.1W of continuous average power to an 8 load with 1% THD+N using a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. More...

Applications

• Personal computers

• Portable consumer products

• Self-powered speakers

• Toys and games

Package Availability, Models, Samples & Pricing

Part Number Package Factory Lead Time Models Budgetary Pricing Std
Pack
Size Package
Marking
Format

Type Pins Spec. MSL
Rating Peak
Reflow RoHS
Report Weeks Qty Qty $US each

LM4861M SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.59 rail
of
95 NSZXTT
LM
4861M

6 weeks 2000

LM4861MX SOIC NARROW 8 STD
NOPB 1
1 235
260 RoHS Full production N/A

1K+ $0.59 reel
of
2500 NSZXTT
LM
4861M

6 weeks 5000

LM4861 MDA Unpackaged Die Full production N/A
CALL tray
of
N/A -

N/A 5000

General Description

The LM4861 is a bridge-connected audio power amplifier capable of delivering 1.1W of continuous average power to an 8 load with 1% THD+N using a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components using surface mount packaging. Since the LM4861 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is optimally suited for low-power portable systems.

The LM4861 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The unity-gain stable LM4861 can be configured by external gain-setting resistors for differential gains of up to 10 without the use of external compensation components. Higher gains may be achieved with suitable compensation.

Typical Application
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Parametric Table expand

Parametric Table collapse

Supply Range +2.0 - +5.5 V

PowerAtEightOhms OnePercentTHD 1.15 Watt

PowerAtEightOhms TenPercentTHD 1.5 Watt

THD 0.72 %

THD Conditions Po=1W @ Vs=5V, R=8 ohms

Supply Range +2.0 - +5.5 V

User Supply 5 Volt

PowerAtFourOhms OnePercentTHD 1.55 Watt

PowerAtEightOhms OnePercentTHD 1.15 Watt

PowerAtEightOhms TenPercentTHD 1.5 Watt

PowerAtFourOhms TenPercentTHD 1.9 Watt

PSRR 65 dB

THD 0.72 %

THD Conditions Po=1W @ Vs=5V, R=8 ohms

Shutdown Type High

Temperature Min -40 deg C

Temperature Max 85 deg C

View Using Catalog

Typical Performance
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Also Recommended

LM4834 Combines Functionality Of The LM4861 And LM4880

Connection Diagram
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