LM4950

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3,1-W-, 9,6- bis 16-V-Mono-Audioverstärker (Klasse AB) mit Analog-Eingang

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Datenblatt

document-pdfAcrobat LM4950 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier datasheet (Rev. E) (Englisch)

LM4950

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Audio input type

Analog Input

Architecture

Class-AB

Speaker channels (max)

Stereo

Rating

Catalog

Power stage supply (max) (V)

16

Power stage supply (min) (V)

9.6

Load (min) (Ω)

4

Output power (W)

7.5

THD + N at 1 kHz (%)

0.03

Iq (typ) (mA)

16

Control interface

Hardware

Closed/open loop

Open

Analog supply (min) (V)

9.6

Analog supply voltage (max) (V)

16

PSRR (dB)

70

Operating temperature range (°C)

-40 to 85

Audio input type

Analog Input

Architecture

Class-AB

Speaker channels (max)

Stereo

Rating

Catalog

Power stage supply (max) (V)

16

Power stage supply (min) (V)

9.6

Load (min) (Ω)

4

Output power (W)

7.5

THD + N at 1 kHz (%)

0.03

Iq (typ) (mA)

16

Control interface

Hardware

Closed/open loop

Open

Analog supply (min) (V)

9.6

Analog supply voltage (max) (V)

16

PSRR (dB)

70

Operating temperature range (°C)

-40 to 85

TO-263 (KTW)

9

145.796 mm² 10.16 x 14.35

Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
Low Current, Active-Low Shutdown Mode
Low Quiescent Current
Stereo 3.1W Output, R_L = 4Ω
Mono 7.5W BTL Output, R_L = 8Ω
Short Circuit Protection
Unity-Gain Stable
External Gain Configuration Capability

Key Specifications

Quiescent Power Supply Current 16mA (typ)
P_OUT (SE)
- V_DD = 12V, R_L = 4Ω, 1% THD+N: 3.1W (typ)
P_OUT (BTL)
- V_DD = 12V, R_L = 8Ω, 10% THD+N: 7.5W (typ)
Shutdown Current 40μA (typ)

All trademarks are the property of their respective owners.

Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
Low Current, Active-Low Shutdown Mode
Low Quiescent Current
Stereo 3.1W Output, R_L = 4Ω
Mono 7.5W BTL Output, R_L = 8Ω
Short Circuit Protection
Unity-Gain Stable
External Gain Configuration Capability

Key Specifications

Quiescent Power Supply Current 16mA (typ)
P_OUT (SE)
- V_DD = 12V, R_L = 4Ω, 1% THD+N: 3.1W (typ)
P_OUT (BTL)
- V_DD = 12V, R_L = 8Ω, 10% THD+N: 7.5W (typ)
Shutdown Current 40μA (typ)

All trademarks are the property of their respective owners.

The LM4950 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4Ω single-ended load with less than 1% THD+N or 7.5 watts mono BTL to an 8Ω load, with less than 10% THD+N from a 12V_DC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4950 features a low-power consumption active-low shutdown mode. Additionally, the LM4950 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4950 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4950 is a unity-gain stable and can be configured by external gain-setting resistors.

The LM4950 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4Ω single-ended load with less than 1% THD+N or 7.5 watts mono BTL to an 8Ω load, with less than 10% THD+N from a 12V_DC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4950 features a low-power consumption active-low shutdown mode. Additionally, the LM4950 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4950 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4950 is a unity-gain stable and can be configured by external gain-setting resistors.

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Alle anzeigen 3

	Typ	Titel	Datum
*	Data sheet	LM4950 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier datasheet (Rev. E)	01 Mai 2013
	Application note	Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)	26 Aug 2019
	Application note	AN-1849 An Audio Amplifier Power Supply Design (Rev. C)	27 Jun 2019

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LM4950

3,1-W-, 9,6- bis 16-V-Mono-Audioverstärker (Klasse AB) mit Analog-Eingang

LM4950

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Key Specifications

Key Specifications

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Design und Entwicklung

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