LA42071 PDF Datasheet – 7W, 2ch, Power Amplifier

Part Number: LA42071, LA42051 Thru LA42352

Function: 7W x 2 channel, Power Amplifier

Package: SIP 13 Pin Type

Manufacturer: Sanyo Electric


LA42071 datasheet


The LA42071 is 7W 2-channel AF power amplifier intended for televisions.

A 2-channel AF (Audio Frequency) power amplifier refers to an amplifier that can drive two separate audio channels or speakers. It is commonly used in stereo systems or multi-channel audio setups. Each channel of the amplifier receives an independent audio signal and amplifies it to a level suitable for driving speakers.

The term “AF” in AF power amplifier indicates that it is designed to handle audio frequencies typically found in human hearing range, which is around 20 Hz to 20 kHz. The amplifier takes a low-level audio input signal and increases its power or voltage level to drive the speakers, resulting in an audible sound.

A 2-channel AF power amplifier usually has two separate amplification circuits, one for each channel, and can provide independent control over each channel’s volume or other audio parameters. It can be used with various audio sources such as CD players, MP3 players, computers, and audio mixers.

LA42000 series is power IC which made Pin compatible altogether in 5 to 15W. They consist of four kinds of power ICs (mono, stereo, mono with volume function, stereo with volume function. They realized PCB layout communalization of an audio power block of TV).


LA42071 pinout

Functions :

1. 7W × 2 channel (VCC = 12V, RL = 8Ω).

2. Standby function.

3. Mute function.

4. Thermal protection circuit

Maximum Ratings at Ta = 25°C

1. Maximum supply voltage : VCC max = 24 V ( No signal )

2. Allowable power dissipation : Pd max = 15 W ( Infinite heat sink )

3. Maximum junction temperature : Tj max = 150 °C

4. Thermal resistance : θjc = 3 °C/W

5. Operating temperature : Topr = -25 to +75 °C

6. Storage temperature: Tstg = -40 to +150 °C

Block Diagram

LA42071 pdf

Other data sheets are available within the file: LA42051, LA42052, LA42351, LA42352, LA42072, LA42152

LA42071 PDF Datasheet

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