(China (Mainland))
Product Summary
The LA4743J 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. The LA4743J is also pin compatible with the LA4743A, which differs in the amount of gain provided.
Parametrics
LA4743J absolute maximum ratings: (1)Maximum supply voltage VCC max1: 18 V; (2)VCC max2 No signal (for 1 minute): 26 V; (3)Maximum output current IOpeak: 4.5/ch A; (4)Allowable power dissipation Pd max With an arbitrarily large heat sink: 50 W; (5)Operating temperature Topr: –40 to +85℃; (6)Storage temperature Tstg: –40 to +150℃; (7)Package thermal resistance θjc: 1℃/W.
Features
LA4743J features: (1)Maximum output power: 45 W × 4 channels (VCC = 14.4 V, 4 × load, 1 kHz); (2)40 W × 4 channels (VCC = 13.7 V, 4 Ω load, 1 kHz); (3)Requires only seven external components and does not require an oscillation prevention RC circuit, a noise filter, or a BS capacitor.
Diagrams
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 LA4700N |
Other |
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Data Sheet |
Negotiable |
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LA4705 |
Other |
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Data Sheet |
Negotiable |
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LA4708 |
Other |
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Data Sheet |
Negotiable |
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LA4708N-E |
ON Semiconductor |
Audio Amplifiers CLASS-AB POWER AMPLIFIER |
Data Sheet |
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LA4708NF |
Other |
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Data Sheet |
Negotiable |
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LA47202P |
Other |
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Data Sheet |
Negotiable |
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