LM4951A

활성

1.8W, 모노, 2.7~9V, 아날로그 입력 클래스-AB 오디오 증폭기 및 단락 보호

지금 주문

데이터 시트

document-pdfAcrobat Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection datasheet (Rev. C) (영어)

LM4951A

활성

데이터 시트

지금 주문

제품 상세 정보

Audio input type

Analog Input

Architecture

Class-AB

Speaker channels (max)

Mono

Rating

Catalog

Power stage supply (max) (V)

Power stage supply (min) (V)

2.7

Load (min) (Ω)

Output power (W)

2.2

THD + N at 1 kHz (%)

0.07

Iq (typ) (mA)

2.5

Control interface

Hardware

Closed/open loop

Open

Analog supply (min) (V)

2.7

Analog supply voltage (max) (V)

PSRR (dB)

Operating temperature range (°C)

-40 to 85

Audio input type

Analog Input

Architecture

Class-AB

Speaker channels (max)

Mono

Rating

Catalog

Power stage supply (max) (V)

Power stage supply (min) (V)

2.7

Load (min) (Ω)

Output power (W)

2.2

THD + N at 1 kHz (%)

0.07

Iq (typ) (mA)

2.5

Control interface

Hardware

Closed/open loop

Open

Analog supply (min) (V)

2.7

Analog supply voltage (max) (V)

PSRR (dB)

Operating temperature range (°C)

-40 to 85

WSON (DPR)

16 mm² 4 x 4

Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
Wide Supply Voltage Range: 2.7V to 9V
Low Current, Active-Low Shutdown Mode
Low Quiescent Current
Thermal Shutdown Protection
Short Circuit Protection
Unity-Gain Stable
External Gain Configuration Capability

Key Specifications

Wide Voltage Range 2.7V to 9V
Quiescent Power Supply Current (V_DD = 7.5V) 2.5mA (typ)
Power Output BTL at 7.5V, 1% THD
1.8 W (typ)
Shutdown Current 0.01µA (typ)
Fast Turn on Time 25ms (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
Wide Supply Voltage Range: 2.7V to 9V
Low Current, Active-Low Shutdown Mode
Low Quiescent Current
Thermal Shutdown Protection
Short Circuit Protection
Unity-Gain Stable
External Gain Configuration Capability

Key Specifications

Wide Voltage Range 2.7V to 9V
Quiescent Power Supply Current (V_DD = 7.5V) 2.5mA (typ)
Power Output BTL at 7.5V, 1% THD
1.8 W (typ)
Shutdown Current 0.01µA (typ)
Fast Turn on Time 25ms (typ)

All trademarks are the property of their respective owners. Boomer is a trademark of Texas Instruments.

The LM4951A is an audio power amplifier designed for applications with supply voltages ranging from 2.7V up to 9V. The LM4951A is capable of delivering 1.8W continuous average power with less than 1% THD+N into a bridge connected 8Ω load when operating from a 7.5VDC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4951A does not require bootstrap capacitors, or snubber circuits.

The LM4951A features a low-power consumption active-low shutdown mode. Additionally, the LM4951A features an internal thermal shutdown protection mechanism and short circuit protection.

The LM4951A contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4951A is unity-gain stable and can be configured by external gain-setting resistors.

The LM4951A features a low-power consumption active-low shutdown mode. Additionally, the LM4951A features an internal thermal shutdown protection mechanism and short circuit protection.

The LM4951A contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4951A is unity-gain stable and can be configured by external gain-setting resistors.

filter

기타 스피커 증폭기 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star

=TI에서 선정한 이 제품의 인기 문서

검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.

1개 모두 보기

	유형	직함		날짜
*	Data sheet	Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection datasheet (Rev. C)		2013/04/08

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)

요청