The TDA7851F is a breakthrough MOSFET technology class AB audio power amplifier, designed for high-power car radio. It has high output power capability, MOSFET output power stage, excellent 2Ω driving capability, Hi-Fi class distortion, low output noise, standby function, mute function, automute at min. supply voltage detection and other features.
The TDA7851F is a breakthrough MOSFET technology Class AB audio power amplifier designed for high-power car radio applications. It features a fully complementary P-Channel/N-Channel output structure that allows for rail-to-rail output voltage swing, minimizing saturation losses and setting new power references in the car-radio field.
| Output power (4 Ohm) | 4 x 48 W |
|---|---|
| Output power (2 Ohm) | 4 x 72 W |
| Supply voltage range | 8 to 18 V |
| Voltage gain | 26 dB |
| Quiescent current | 100 to 300 mA |
| Output offset voltage | ±60 mV |
| Junction temperature | 150 °C |
The minimum recommended value for the SVR capacitor is 10 µF to serve ripple rejection and pop optimization needs.
Yes, the inputs are ground-compatible and can stand very high input signals of ± 8 Vpk without performance degradation.
Under normal usage with 4 Ohm speakers, the heatsink's thermal resistance should be approximately 2 °C/W to avoid thermal shutdown.