TDA7454 is a new BCD technology QUAD BRIDGE car radio amplifier suitable for car radio applications. It features high efficiency, high output power capability, and low radiation.
The TDA7454 is a quad bridge-type car radio amplifier utilizing STMicroelectronics' exclusive MultiPower BCD technology. It is designed to simplify thermal management in high power sets by reducing dissipated output power under average listening conditions by up to 50% compared to conventional Class AB solutions. The device operates in either a standard Class AB mode or a high efficiency mode selectable via an external pin.
| Output Power (4Q) | 4 x 35W/4Q EIAJ |
|---|---|
| Max Output Power (2Q) | 4 x 60W/2Q MAX |
| Supply Voltage Range | 8 to 18 V |
| Voltage Gain | 26 dB |
| Power Bandwidth | 75 KHz |
It uses 8 amplifier blocks that continuously change connections during every signal event to reduce power dissipation without massive radiation effects.
The High Efficiency Mode is selected by connecting pin 16 to 0.5 V.
The typical input impedance is 15 KOhm.