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LA4743A

Features: • Maximum output power: 45 W * 4 channels (VCC = 14.4 V, 4 load, 1 kHz)• 40 W * 4 channels (VCC = 13.7 V, 4 load, 1 kHz)• Requires only seven external components and does not require an oscillation prevention RC circuit, a noise filter, or a BS capacitor.Specification...

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SeekIC No. : 004390403 Detail

LA4743A: Features: • Maximum output power: 45 W * 4 channels (VCC = 14.4 V, 4 load, 1 kHz)• 40 W * 4 channels (VCC = 13.7 V, 4 load, 1 kHz)• Requires only seven external components and do...

LA4743A Data Sheet

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Part Number:
LA4743A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/10/27

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Product Details

Description



Features:

• Maximum output power: 45 W * 4 channels (VCC = 14.4 V, 4 load, 1 kHz)
• 40 W * 4 channels (VCC = 13.7 V, 4 load, 1 kHz)
• Requires only seven external components and does not require an oscillation prevention RC circuit, a noise filter, or a BS capacitor.




Specifications

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage VCC max1 Signal present 18 V
VCC max2 No signal (for 1 minute) 26 V
Maximum output current IOpeak   4.5/ch A
Allowable power dissipation Pd max With an arbitrarily large heat sink 50 W
Operating temperature Topr   40 to +85 °C
Storage temperature Tstg   40 to +150 °C
Package thermal resistance jc   1 °C/W



Description

The LA4743A is a 45 W 4-channel power amplifier IC for car stereo systems. It features a built-in bridge circuit and the ability to radically reduce the number of external components required. It is also pin compatible with the LA4743B, which differs in the amount of gain provided.




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