Ordering number : ENN6630 Monolithic Linear IC LA4743B 45 W Four-Channel (Bridge Circuit) Power Amplifier Overview The LA4743B 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 LA4743A, which.
a built-in bridge circuit and the ability to radically reduce the number of external components required. It is also pin compatible with the LA4743A, which differs in the amount of gain provided.
Package Dimensions
unit: mm 3236-HZIP25
[LA4743B]
29.2 25.6 4.5
Features
• Maximum output power: 45 W × 4 channels (VCC = 14.4 V, 4 Ω load, 1 kHz)
• 40 W × 4 channels (VCC = 13.7 V, 4 Ω load, 1 kHz)
• Requires only seven external components and does not require an oscillation prevention RC circuit, a noise filter, or a BS capacitor.
R1.7 14.4 17.4 3.3 10.2
0.4 4.0 4.0
2.60 2.0
(1.0) 2.0
0.53
F.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LA4743A |
Sanyo |
45 W Four-Channel (Bridge Circuit) Power Amplifier | |
2 | LA4741 |
Sanyo |
42W 4-Channel BTL Power Amplifier | |
3 | LA4742 |
Sanyo |
45 W Four-Channel Bridge Circuit Power Amplifier | |
4 | LA4700N |
Sanyo |
2-Channel 12W AF Power Amplifier | |
5 | LA4705 |
Sanyo |
15 W 2-channel BTL AF Power Amplifier | |
6 | LA4708 |
Sanyo |
20 W 2-channel BTL AF Power Amplifier | |
7 | LA4708N |
ON Semiconductor |
20W 2-channel BTL AF Power Amplifier | |
8 | LA47202P |
Sanyo Semicon Device |
Monolithic Linear IC Four-Channel BTL Power Amplifier | |
9 | LA4725 |
ON Semiconductor |
2-channel 30W BTL Audio Amplifier | |
10 | LA4725 |
Sanyo |
2-Channel BTL Power Amplifier | |
11 | LA4728 |
Sanyo |
2-Channel BTL Power Amplifier | |
12 | LA47501 |
Sanyo |
BTL 4ch (50W x 4) Power IC |